VTech Telecommunications 80-7597-01 WiFi Gateway User Manual 1

VTech Telecommunications Ltd WiFi Gateway 1

Contents

User Manual 1

     AudioCodes CPE & Access Gateway Products        MP252  Multimedia Home Gateway        User's Manual   MP252BW and MP252WDNB MediaPack™ 252 Multimedia Home Gateway Series Version 3.4.0 Document #: LTRT-23504
Version 3.4.0  3  June 2011 MP252 Multimedia Home Gateway  Contents  Contents 1 Introduction .......................................................................................................23 2 Package Contents and Prerequisites ..............................................................25 3 Hardware Description .......................................................................................27 3.1 Physical Description .............................................................................................27 3.1.1 Front Panel ..............................................................................................................27 3.1.1.1 Front-Panel Buttons Description ..............................................................28 3.1.1.2 Front-Panel LEDs Description..................................................................29 3.1.2 Rear Panel ...............................................................................................................30 3.1.2.1 Rear-Panel Port Description.....................................................................31 3.1.2.2 Rear-Panel LEDs Description ..................................................................32 3.2 Cabling .................................................................................................................33 3.3 Mounting ..............................................................................................................34 Part I ........................................................................................................................ 37 4 Getting Started with the Web Interface ...........................................................39 4.1 Logging in to the Web Interface............................................................................39 4.2 Menu Bar Description ...........................................................................................40 4.3 Managing Tables..................................................................................................43 4.4 Configuring Users.................................................................................................44 4.5 Defining Associated Elements ..............................................................................47 4.5.1 Defining Scheduler Rules ........................................................................................47 4.5.2 Defining Network Objects ........................................................................................50 4.5.3 Defining Protocols....................................................................................................51 4.6 Logging out the Web Interface..............................................................................53 5 Viewing a Graphical Display of the MP252 Network ......................................55 6 Configuring Computers for Connecting to the MP252 Network....................59 6.1 Wired Computers .................................................................................................59 6.1.1 Configuring Computers Running on Windows XP...................................................59 6.1.2 Configuring Computers Running on Linux...............................................................60 6.2 Connecting PC to MP252 Wireless Networks .......................................................61 7 Connecting MP252 to the Internet ...................................................................63 7.1 Quickly Setting up an Internet Connection in the Web Interface ...........................63 7.1.1 WAN Ethernet..........................................................................................................64 7.1.1.1 Manual IP Address Ethernet Connection .................................................65 7.1.1.2 Automatic IP Address Ethernet Connection.............................................65 7.1.1.3 PPPoE ......................................................................................................66 7.1.1.4 PPTP ........................................................................................................66 7.1.1.5 L2TP .........................................................................................................67 7.1.2 WAN DSL ................................................................................................................68 7.1.2.1 PPPoE ......................................................................................................68 7.1.2.2 PPPoA ......................................................................................................69 7.1.2.3 Routed ETHoA .........................................................................................69 7.1.2.4 Bridged ETHoA ........................................................................................70 7.1.2.5 CLIP..........................................................................................................70 7.2 Using the Automatic Dialer for Internet Connection ..............................................72 7.2.1 Recommended Configuration..................................................................................72 7.2.2 Setting up and Starting the Automatic Dialer...........................................................74
MP252 Multimedia Home Gateway  4  Document #: LTRT-23504   User's Manual 7.2.3 Quitting Automatic Dialer for Manual Configuration ................................................75 8 Configuring VoIP Parameters ..........................................................................77 8.1 Configuring the SIP Signaling Protocol.................................................................78 8.1.1 Configuring Proxy Redundancy...............................................................................84 8.2 Configuring Dialing Parameters............................................................................86 8.2.1 Syntax for Digit Maps and Dial Plans ......................................................................88 8.3 Configuring Media Streaming ...............................................................................90 8.3.1 Configuring Codecs .................................................................................................91 8.3.1.1 Supported Codecs....................................................................................91 8.3.1.2 Packetization Time...................................................................................91 8.4 Configuring Voice and Fax ...................................................................................91 8.5 Configuring Supplementary Services....................................................................95 8.6 Configuring Line Settings .....................................................................................99 8.7 Configuring Line Extensions...............................................................................102 8.8 Configuring Speed Dialing..................................................................................103 8.9 Enabling Polarity Reversal..................................................................................104 8.10 Selecting Regional Settings for Analog Lines .....................................................105 9 Connecting MP252 to an ITSP........................................................................107 9.1 Opening a SIP Account ......................................................................................107 9.2 Configuring VoIP Parameters.............................................................................107 10 Making VoIP Calls with your Analog Telephones ........................................109 10.1 Making a Call......................................................................................................109 10.2 Answering a Waiting Call....................................................................................109 10.3 Placing a Call on Hold ........................................................................................110 10.4 Transferring a Call..............................................................................................110 10.5 Establishing a 3-Way Conference Call................................................................111 10.6 Forwarding Calls to another Phone ....................................................................112 11 Quality of Service............................................................................................113 11.1 QoS Wizard........................................................................................................114 11.2 Traffic Shaping ...................................................................................................115 11.2.1 Device Traffic Shaping...........................................................................................115 11.2.2 Shaping Classes....................................................................................................117 11.2.2.1 Class Rules ............................................................................................118 11.3 Traffic Priority .....................................................................................................120 11.4 DSCP Mapping...................................................................................................123 11.5 802.1p Mapping..................................................................................................126 11.6 Class Statistics ...................................................................................................127 11.7 Configuring Basic VoIP QoS...............................................................................128 12 Network Connections .....................................................................................131 12.1 Configuring a WAN Connection..........................................................................131 12.1.1 WAN DSL Connections .........................................................................................133 12.1.1.1 Determine Protocol Type Automatically (PVC Scan).............................133 12.1.1.2 PPPoE ....................................................................................................134 12.1.1.3 PPPoA ....................................................................................................136 12.1.1.4 Routed ETHoA or Bridged ETHoA.........................................................138 12.1.1.5 CLIP........................................................................................................140
Version 3.4.0  5  June 2011 MP252 Multimedia Home Gateway  Contents  12.1.1.6 IPoA........................................................................................................142 12.1.2 WAN Ethernet Connections...................................................................................143 12.1.2.1 External DSL Modem using PPPoE.......................................................143 12.1.2.2 External Cable Modem without Authentication ......................................144 12.1.2.3 External Cable Modem with PPTP.........................................................145 12.1.2.4 External Cable Modem with L2TP..........................................................147 12.1.2.5 DHCP .....................................................................................................149 12.1.2.6 Manual IP Address .................................................................................150 12.2 LAN Connection .................................................................................................151 12.2.1 Wireless LAN .........................................................................................................151 12.2.1.1 Enabling and Disabling the Wireless Network .......................................153 12.2.1.2 Configuring Wireless Properties under the Settings Tab .......................153 12.2.1.3 Configuring Wireless Properties under the Wireless Tab ......................155 12.2.1.4 Advanced Tab ........................................................................................166 12.2.2 LAN Hardware Ethernet Switch .............................................................................166 12.2.2.1 Settings Tab ...........................................................................................167 12.2.2.2 Switch Tab..............................................................................................168 12.2.2.3 Advanced Tab ........................................................................................170 12.3 Editing Network Connections and Advanced Configuration ................................170 12.3.1 General Tab...........................................................................................................171 12.3.2 Settings Tab...........................................................................................................171 12.3.2.1 Internet Protocol Settings .......................................................................173 12.3.3 Routing Tab ...........................................................................................................176 12.3.4 Wireless Tab..........................................................................................................177 12.3.5 Switch Tab .............................................................................................................177 12.3.6 Bridging Tab ..........................................................................................................177 12.3.7 PPP Tab ................................................................................................................178 12.3.8 PPTP tab ...............................................................................................................179 12.3.9 Advanced Tab........................................................................................................180 12.4 VLAN Settings ....................................................................................................181 12.4.1 Settings Tab...........................................................................................................183 12.4.1.1 IP Address Distribution...........................................................................184 12.4.2 Routing Tab ...........................................................................................................186 12.4.3 Advanced Tab........................................................................................................187 12.5 LAN-WAN Bridge Settings..................................................................................188 12.5.1 Editing LAN-WAN Bridging ....................................................................................190 13 Remote MP252 Management..........................................................................193 13.1 Overview ............................................................................................................193 13.1.1 Remote Configuration............................................................................................193 13.1.2 Remote Management ............................................................................................194 13.1.2.1 Firmware Upgrade..................................................................................195 13.1.2.2 Status and Performance Monitoring.......................................................196 13.1.2.3 Alarms, Notifications and Logging..........................................................197 13.2 Enabling Remote Management ..........................................................................197 13.3 Securing Remote Management with Certificates ................................................200 13.4 Remote Configuration and Management Interfaces............................................205 13.4.1 Embedded Web Server .........................................................................................205 13.4.2 TR-069 and TR-104 CPE WAN Management Protocol ........................................206 13.4.2.1 Configuring MP252 via TR-069 and TR-104..........................................207 13.4.2.2 Monitoring MP252 Status via TR-069 and TR-104 ................................215 13.4.2.3 Security Concerns and Measures ..........................................................219 13.4.3 SNMP.....................................................................................................................220 13.4.3.1 Enabling SNMP in the Web Interface.....................................................220 13.4.3.2 Configuring MP252 via SNMP ...............................................................221 13.4.3.3 Status Monitoring of System and Network Interfaces via SNMP ...........222
MP252 Multimedia Home Gateway  6  Document #: LTRT-23504   User's Manual 13.4.3.4 Security Concerns and Measures ..........................................................222 13.4.4 Syslog ....................................................................................................................223 13.4.5 Automatic File Download .......................................................................................223 13.4.5.1 Firmware File Download.........................................................................223 13.4.5.2 Configuration File Download ..................................................................223 13.4.5.3 Security Concerns and Measures ..........................................................224 13.4.6 Telnet CLI ..............................................................................................................224 14 Security............................................................................................................225 14.1 General Security Level Settings..........................................................................226 14.2 Access Control ...................................................................................................228 14.3 Port Forwarding..................................................................................................229 14.4 DMZ Host ...........................................................................................................234 14.5 Port Triggering....................................................................................................235 14.6 Website Restrictions...........................................................................................237 14.7 NAT....................................................................................................................240 14.8 Connections .......................................................................................................244 14.9 Advanced Filtering..............................................................................................245 14.10 Security Log .......................................................................................................248 15 Advanced Networking Features.....................................................................251 15.1 IP Address Distribution .......................................................................................251 15.1.1 DHCP Server Parameters .....................................................................................253 15.1.2 DHCP Relay Parameters.......................................................................................254 15.1.3 Viewing DHCP Clients ...........................................................................................255 15.1.4 Defining Static DHCP Clients ................................................................................255 15.2 DNS Server ........................................................................................................257 15.3 Dynamic DNS.....................................................................................................258 15.4 Routing...............................................................................................................261 15.4.1 Managing Routing Table Rules .............................................................................261 15.4.2 Routing Protocols ..................................................................................................262 15.5 PPPoE Relay......................................................................................................262 16 Home Media .....................................................................................................265 16.1 Universal Plug and Play .....................................................................................265 16.1.1 Enabling UPnP on MP252 .....................................................................................265 16.1.2 Adding UPnP-enabled PC to Home Network ........................................................266 16.1.3 Monitoring Connection between MP252 and Internet ...........................................266 16.1.4 Making Local Services available to PCs on Internet .............................................267 17 Add-On Servers and Disk Management ........................................................270 17.1 External File Server............................................................................................270 17.1.1 Automatic File Sharing...........................................................................................271 17.2 Disk Management ..............................................................................................272 17.2.1 Disk Partitions ........................................................................................................274 17.2.1.1 Connecting a Mass Storage Device.......................................................274 17.2.1.2 Formatting a Partition .............................................................................278 17.2.1.3 Checking a Partition ...............................................................................279 17.2.1.4 Deleting a Partition .................................................................................279 17.2.2 System Storage Area.............................................................................................280 17.2.3 RAID Management ................................................................................................282 17.2.3.1 Creating a RAID Device .........................................................................282 17.2.3.2 Using a RAID Device..............................................................................284
Version 3.4.0  7  June 2011 MP252 Multimedia Home Gateway  Contents  17.2.3.3 Maintaining a RAID Device ....................................................................284 17.2.3.4 Replacing RAID Underlying Devices......................................................284 17.3 Print Server ........................................................................................................286 17.3.1 Connecting and Setting up a Printer on Windows.................................................287 17.3.2 Print Protocols .......................................................................................................288 17.3.2.1 Internet Printing Protocol........................................................................288 17.3.2.2 Microsoft Shared Printing (Samba) ........................................................297 17.3.2.3 Line Printer Daemon (LPD) ....................................................................300 17.3.3 Storing and Using Printer Drivers ..........................................................................307 18 Maintenance ....................................................................................................310 18.1 About MP252......................................................................................................310 18.2 Date & Time .......................................................................................................311 18.3 Backup and Restore...........................................................................................313 18.3.1 Backing Up Data....................................................................................................313 18.3.2 Restoring Your Data ..............................................................................................315 18.4 Configuration File ...............................................................................................316 18.4.1 Uploading from PC on the Network .......................................................................318 18.4.2 Uploading from a Remote Server ..........................................................................320 18.4.3 Encrypting a Configuration File Using CLI.............................................................321 18.4.4 Automatic Upload using SIP NOTIFY Message....................................................323 18.5 Firmware Upgrade..............................................................................................323 18.5.1 Upgrading from a Computer on the Network.........................................................325 18.5.2 Upgrading From the Internet .................................................................................327 18.6 System Settings .................................................................................................329 18.7 Reboot................................................................................................................332 18.8 Restoring Factory Settings .................................................................................333 19 Diagnostics and Performance Monitoring ....................................................334 19.1 Diagnostics.........................................................................................................334 19.1.1 Running a Ping Test ..............................................................................................335 19.1.2 Running an ARP Test ............................................................................................336 19.1.3 Running a Traceroute ............................................................................................336 19.1.4 Running a PVC Scan Test.....................................................................................337 19.1.5 Running an OAM Ping Test...................................................................................337 19.2 Performance Monitoring .....................................................................................339 19.2.1 Network Connections.............................................................................................339 19.2.2 System Log ............................................................................................................340 19.2.3 CPU .......................................................................................................................340 19.2.4 Voice over IP .........................................................................................................343 19.2.5 Internet Connection Utilization...............................................................................343 Part II ..................................................................................................................... 346 20 Introduction .....................................................................................................348 21 Safety Instructions..........................................................................................350 22 Getting Started ................................................................................................352 22.1 Installing the DECT Phone .................................................................................352 22.2 Powering the Handset ........................................................................................353 22.2.1 Charging the Handset............................................................................................353 22.2.2 Checking the Battery Level....................................................................................354 22.2.3 Switching the Base Unit On or Off.........................................................................354 22.2.4 Switching the Handset On or Off ...........................................................................354
MP252 Multimedia Home Gateway  8  Document #: LTRT-23504   User's Manual 22.2.5 Replacing the Batteries..........................................................................................355 22.3 Getting to Know Your Phone ..............................................................................356 22.3.1 Overview of the Handset .......................................................................................356 22.3.2 Getting to Know your Handset LCD Screen..........................................................359 22.3.2.1 Menu Structure .......................................................................................360 22.3.2.2 Entering Text and Digits .........................................................................361 22.3.3 Viewing Base Unit Status with DECT LED ............................................................363 22.4 Upgrading MP252 and the Base Unit .................................................................363 22.5 Defining the MP252 Handset Line ......................................................................364 22.6 Registering the Handset to Base Unit.................................................................366 22.7 Checking the Handset Signal Strength ...............................................................367 23 General Phone Operation...............................................................................368 23.1 Making an External Call......................................................................................368 23.1.1 Pre-dialing..............................................................................................................368 23.1.2 Direct Dialing .........................................................................................................368 23.1.3 Calling from your Phonebook ................................................................................368 23.1.4 Calling from the Call List........................................................................................368 23.1.5 Establishing a Second Call ....................................................................................368 23.1.6 Redialing a Number ...............................................................................................369 23.2 Answering a Call ................................................................................................369 23.3 Answering or Rejecting a Second Call................................................................370 23.4 Ending a Call......................................................................................................370 23.5 Adjusting Earpiece and Speakerphone Volume during a Call .............................370 23.6 Muting a Call ......................................................................................................370 23.7 Turning Off the Ringer ........................................................................................371 23.8 Redial List ..........................................................................................................371 23.8.1 Saving a Redial Number to the Phonebook ..........................................................371 23.8.2 Deleting a Number from the Redial List.................................................................372 23.8.3 Deleting the Entire Redial List ...............................................................................372 23.9 Locking the Keypad............................................................................................372 23.10 Paging the Handset............................................................................................372 23.11 Call Handling for Multiple, Registered Handsets.................................................373 23.11.1 Calling (Intercom) Another Handset ......................................................................373 23.11.2 Transferring an External Call to Another Handset.................................................373 23.11.2.1 Announced Call Transfer........................................................................373 23.11.2.2 Unannounced Call Transfer ...................................................................373 23.11.3 Transferring an External Call to Another External Call..........................................374 23.11.4 Toggling between External and Internal Calls.......................................................374 23.11.5 Three-Way Conference Calls ................................................................................375 23.11.5.1 Making a Three-Way Conference Call with Another Handset and an External Party ........................................................................................................375 23.11.5.2 Making a Three-Way Conference Call with your Handset and two External Calls  376 24 Phonebook.......................................................................................................377 24.1 Adding a New Contact........................................................................................377 24.2 Editing a Contact ................................................................................................378 24.3 Viewing Contacts................................................................................................378 24.4 Deleting a Contact..............................................................................................379 24.5 Deleting All Contacts ..........................................................................................380 25 Call List ............................................................................................................381
Version 3.4.0  9  June 2011 MP252 Multimedia Home Gateway  Contents  25.1 Viewing the Call List ...........................................................................................381 25.2 Saving a Call List Number to the Phonebook......................................................382 25.3 Dialing a Call List Number ..................................................................................382 25.4 Deleting a Call List Number................................................................................383 25.5 Deleting the Entire Call List ................................................................................384 26 Clock and Alarm..............................................................................................385 26.1 Date and Time....................................................................................................385 26.1.1 Changing the Date Format ....................................................................................385 26.1.2 Changing the Time Format....................................................................................385 26.1.3 Setting the Time and Date .....................................................................................385 26.2 Alarm..................................................................................................................386 26.2.1 Setting the Alarm ...................................................................................................387 26.2.2 Defining the Alarm Melody.....................................................................................388 26.2.3 Disabling the Alarm................................................................................................388 26.2.4 Switching Off or Snoozing the Alarm.....................................................................388 27 Customizing the Handset ...............................................................................389 27.1 Adjusting Speaker and Earpiece Volume............................................................389 27.2 Ring Settings......................................................................................................390 27.2.1 Choosing the Internal Ringer Melody ....................................................................390 27.2.2 Choosing the External Ringer Melody ...................................................................390 27.2.3 Adjusting the Ringer Volume .................................................................................391 27.3 Alert Tones.........................................................................................................391 27.3.1 Setting the Key Tone .............................................................................................391 27.3.2 Setting the Battery Low Tone ................................................................................392 27.4 Setting the Display Language.............................................................................392 27.5 Selecting a Wallpaper.........................................................................................392 27.6 Setting the Contrast Level ..................................................................................393 27.7 Activating or Deactivating Automatic Answer......................................................393 27.8 Selecting a Base Station ....................................................................................393 27.9 Resetting Handset to Factory Defaults ...............................................................394 28 Base Settings ..................................................................................................395 28.1 Manage Handsets ..............................................................................................395 28.1.1 Renaming the Handset ..........................................................................................395 28.1.2 De-Registering a Handset .....................................................................................396 28.2 Changing the PIN Number..................................................................................397 28.3 Resetting the Base to Factory Defaults...............................................................397 28.4 Viewing the Product Version...............................................................................397 28.5 Activating Nemo Mode .......................................................................................398 29 Factory Defaults ..............................................................................................399 30 Troubleshooting..............................................................................................401 A Specifications..................................................................................................403 A.1 Gateway Specifications ......................................................................................403 A.2 DECT (Only for MP252WDNB)...........................................................................406
MP252 Multimedia Home Gateway  10  Document #: LTRT-23504   User's Manual List of Figures Figure  1-1:  MP252 Typical Application..................................................................................................24 Figure  3-1:  Front Panel of MP252BW ...................................................................................................27 Figure  3-2:  Front Panel of MP252WDNB..............................................................................................28 Figure  3-3:  Rear Panel of MP252BW....................................................................................................30 Figure  3-4:  Rear Panel of MP252WDNB...............................................................................................31 Figure  3-5:  Cabling MP252....................................................................................................................33 Figure  3-6: MP 252 Wall Mount Bracket ................................................................................................35 Figure  3-7: Attaching Phone Base to Wall Mount ..................................................................................36 Figure  4-1: Login Screen ........................................................................................................................39 Figure  4-2: Typical Table Structure ........................................................................................................43 Figure  4-3: Users Screen .......................................................................................................................44 Figure  4-4: Users Settings Screen .........................................................................................................45 Figure  4-5: Group Settings Screen.........................................................................................................47 Figure  4-6: Scheduler Rules Screen ......................................................................................................47 Figure  4-7: Edit Scheduler Rule Screen.................................................................................................48 Figure  4-8: Edit Time Segment Screen ..................................................................................................49 Figure  4-9: Edit Hour Range Screen ......................................................................................................49 Figure  4-10: Network Objects Screen ....................................................................................................50 Figure  4-11: Edit Network Objects Screen .............................................................................................50 Figure  4-12: Edit Item Screen ................................................................................................................50 Figure  4-13: Advanced - Protocols.........................................................................................................51 Figure  4-14: Advanced - Protocols - Edit Service ..................................................................................52 Figure  4-15: Advanced - Protocols - Edit Service - Server Ports ...........................................................52 Figure  5-1: Map View Screen (Example) ...............................................................................................56 Figure  6-1: Internet Protocol (TCP/IP) Properties Dialog Box................................................................60 Figure  6-2: Available Wireless Networks................................................................................................61 Figure  7-1: Quick Setup Screen .............................................................................................................64 Figure  7-2: Manual IP Address WAN Ethernet Connection ...................................................................65 Figure  7-3: Automatic IP Address WAN Ethernet Connection ...............................................................66 Figure  7-4: PPPoE WAN Ethernet Connection ......................................................................................66 Figure  7-5: PPTP WAN Ethernet Connection ........................................................................................67 Figure  7-6: L2TP WAN Ethernet Connection .........................................................................................67 Figure  7-7: PPPoE WAN DSL Internet Connection ...............................................................................68 Figure  7-8: PPPoA WAN DSL Internet Connection ...............................................................................69 Figure  7-9: Routed ETHoA WAN DSL Internet Connection...................................................................69 Figure  7-10: Bridged ETHoA WAN DSL Internet Connection ................................................................70 Figure  7-11: CLIP WAN DSL Internet Connection .................................................................................71 Figure  8-1: Signaling Protocol Tab Screen ............................................................................................79 Figure  8-2: Configuring Proxy Redundancy ...........................................................................................85 Figure  8-3: Dialing Tab Screen ..............................................................................................................86 Figure  8-4: Media Streaming Tab Screen ..............................................................................................90 Figure  8-5: Voice and Fax Tab Screen ..................................................................................................91 Figure  8-6: Services Tab Screen............................................................................................................95 Figure  8-7: Line Settings Tab Screen.....................................................................................................99 Figure  8-8: Line Settings Screen for a New Line .................................................................................100 Figure  8-9: Extension Settings Tab Screen..........................................................................................102 Figure  8-10: Extension Settings Screen...............................................................................................102 Figure  8-11: Speed Dial Tab Screen....................................................................................................103 Figure  8-12: Speed Dial Settings Screen (Proxy Destination) .............................................................103 Figure  8-13: Speed Dial Settings Screen (Local Line Destination) ......................................................104 Figure  8-14: Speed Dial Settings Screen (Direct Call Destination)......................................................104 Figure  8-15: Telephone Interface Tab Screen .....................................................................................105 Figure  8-16: Regional Settings Screen ................................................................................................105 Figure  9-1: Voice Over IP - Line Settings Screen ................................................................................107 Figure  9-2: VoIP - Line Settings - Defining a New Line........................................................................108 Figure  11-1: QoS Wizard Tab Screen ..................................................................................................114 Figure  11-2: Quality of Service – Traffic Shaping Screen ....................................................................116
Version 3.4.0  11  June 2011 MP252 Multimedia Home Gateway  Contents  Figure  11-3: Add Device Traffic Shaping Screen .................................................................................116 Figure  11-4: Edit Device Traffic Shaping Screen .................................................................................116 Figure  11-5: Add Shaping Class Screen ..............................................................................................117 Figure  11-6: Edit Shaping Class...........................................................................................................118 Figure  11-7: Traffic Priority Screen ......................................................................................................121 Figure  11-8: Add Traffic Priority Rule Screen.......................................................................................122 Figure  11-9: DSCP Settings Screen.....................................................................................................124 Figure  11-10: Edit DSCP Settings ........................................................................................................125 Figure  11-11: 802.1p Settings Screen..................................................................................................126 Figure  11-12: Class Statistics Screen ..................................................................................................127 Figure  11-13: Edit Device Traffic Shaping............................................................................................129 Figure  11-14: QoS - Edit Device Traffic Shaping - Submitting the Configuration ................................130 Figure  12-1: Network Connections Screen ..........................................................................................131 Figure  12-2: Connection Wizard Screen ..............................................................................................132 Figure  12-3: WAN DSL Properties Screen...........................................................................................133 Figure  12-4: Determine Protocol Type Automatically (PVC Scan) Screen ..........................................134 Figure  12-5: Scan User Defined VPI/VCI Screen.................................................................................134 Figure  12-6: DSL PVC Parameters Configuration Screen ...................................................................135 Figure  12-7: Point-to-Point Protocol over Ethernet (PPPoE) Screen...................................................135 Figure  12-8: Connection Summary Screen ..........................................................................................136 Figure  12-9: DSL PVC Parameters Configuration Screen ...................................................................137 Figure  12-10: Point-to-Point Protocol over ATM (PPPoA) Screen.......................................................137 Figure  12-11: Connection Summary Screen ........................................................................................138 Figure  12-12: DSL PVC Parameters Configuration Screen .................................................................139 Figure  12-13: Ethernet Connection over ATM (ETHoA) Screen ..........................................................139 Figure  12-14: Connection Summary Screen ........................................................................................140 Figure  12-15: Classical IP over ATM (CLIP) Screen............................................................................141 Figure  12-16: Connection Summary Screen ........................................................................................141 Figure  12-17: Routed IP over ATM (IPoA) Screen...............................................................................142 Figure  12-18: Connection Summary Screen ........................................................................................143 Figure  12-19: Point-to-Point Protocol over Ethernet (PPPoE) Screen.................................................143 Figure  12-20: PPPoE Connection Summary........................................................................................144 Figure  12-21: Internet Cable Modem Connection Screen....................................................................144 Figure  12-22: Ethernet Connection Summary......................................................................................145 Figure  12-23: Internet Cable Modem Connection Screen....................................................................146 Figure  12-24: Point-to-Point Tunneling Protocol (PPTP) Screen.........................................................146 Figure  12-25: PPTP Connection Summary..........................................................................................147 Figure  12-26: Internet Cable Modem Connection Screen....................................................................147 Figure  12-27: Layer 2 Tunneling Protocol (L2TP) Screen ...................................................................148 Figure  12-28: L2TP Connection Summary...........................................................................................149 Figure  12-29: Ethernet Connection Screen..........................................................................................149 Figure  12-30: DHCP Connection Summary .........................................................................................150 Figure  12-31: Ethernet Connection Screen..........................................................................................150 Figure  12-32: Manual IP Address Configuration Screen......................................................................150 Figure  12-33: Manual IP Connection Summary ...................................................................................151 Figure  12-34: Network Connections Screen Displaying LAN Wireless Interface.................................152 Figure  12-35: LAN Wireless 802.11n Access Point Properties (General Tab) Screen........................152 Figure  12-36: LAN Wireless 802.11 Access Point Properties (Settings Tab) Screen..........................154 Figure  12-37: LAN Wireless 802.11 Access Point Properties (Wireless Tab) Screen.........................155 Figure  12-38: Wireless Network Group in Wireless Tab Screen..........................................................156 Figure  12-39: MAC Filtering Settings Screen.......................................................................................157 Figure  12-40: MAC Address Added to MAC Filtering Table ................................................................157 Figure  12-41: WPS Group in Wireless Tab Screen .............................................................................157 Figure  12-42: Configuring WPA Security .............................................................................................158 Figure  12-43: Configuring WPA2 Security ...........................................................................................159 Figure  12-44: Configuring Non-WEP Security......................................................................................160 Figure  12-45: Configuring Encryption Key in Windows Wireless Client...............................................161 Figure  12-46: Configuring Authentication Only Security ......................................................................161 Figure  12-47: Transmission Parameters in Wireless Tab Screen........................................................162
MP252 Multimedia Home Gateway  12  Document #: LTRT-23504   User's Manual Figure  12-48: Virtual APs Table ...........................................................................................................162 Figure  12-49: New Virtual AP ...............................................................................................................163 Figure  12-50: Firewall Blocking Access to All Other LANs ..................................................................164 Figure  12-51: Example Virtual AP ........................................................................................................165 Figure  12-52: Wireless Advanced Tab .................................................................................................166 Figure  12-53: Network Connections Screen ........................................................................................167 Figure  12-54: LAN Hardware Ethernet Switch Screen.........................................................................167 Figure  12-55: LAN Hardware Ethernet Switch Screen – Settings Tab ................................................167 Figure  12-56: LAN Hardware Ethernet Switch Screen – Switch Tab...................................................168 Figure  12-57: Port Settings Screen ......................................................................................................169 Figure  12-58: LAN Hardware Ethernet Switch Screen – Advanced Tab .............................................170 Figure  12-59: Editing Connection - General Tab (For Example, WAN Ethernet) ................................171 Figure  12-60: Editing Connection - Settings Tab (For Example, WAN Ethernet) ................................171 Figure  12-61: Automatically Obtaining an IP Address .........................................................................173 Figure  12-62: Manually Defining DNS Server ......................................................................................174 Figure  12-63: IP Address Distribution - DHCP Server .........................................................................175 Figure  12-64: IP Address Distribution - DHCP Relay...........................................................................175 Figure  12-65: DHCP Relay Server Address.........................................................................................175 Figure  12-66: Editing Connection - Routing Tab (For Example, WAN Ethernet).................................176 Figure  12-67: Route Settings Screen ...................................................................................................177 Figure  12-68: Editing Connection - PPP Tab .......................................................................................178 Figure  12-69: Editing Connection - PPTP Tab.....................................................................................180 Figure  12-70: Editing Connection - Advanced Tab (For Example, WAN Ethernet) .............................180 Figure  12-71: Additional IP Address Settings Screen ..........................................................................180 Figure  12-72: Connection Wizard Screen ............................................................................................181 Figure  12-73: Advanced Connection....................................................................................................182 Figure  12-74: VLAN Interface...............................................................................................................182 Figure  12-75: Connection Summary ....................................................................................................183 Figure  12-76: IP Address Distribution - DHCP Server .........................................................................184 Figure  12-77: IP Address Distribution - DHCP Relay...........................................................................185 Figure  12-78: DHCP Relay Server Address.........................................................................................185 Figure  12-79: IP Address Distribution - Disable DHCP........................................................................185 Figure  12-80: Advanced Routing Properties ........................................................................................186 Figure  12-81: Internet Connection Firewall ..........................................................................................188 Figure  12-82: Bridge Options ...............................................................................................................188 Figure  12-83: Network Bridging Screen ...............................................................................................189 Figure  12-84: Adding New Network Bridging .......................................................................................189 Figure  12-85: Connection Summary - Configure Existing Bridge ........................................................190 Figure  12-86: Bridging Tab...................................................................................................................191 Figure  12-87: VLAN Settings Screen ...................................................................................................192 Figure  12-88: Bridge Filter Screen .......................................................................................................192 Figure  13-1: Remote Management Interfaces......................................................................................194 Figure  13-2: Firmware Upgrade Mechanism........................................................................................195 Figure  13-3: Remote Administration Screen ........................................................................................199 Figure  13-4: New Certificates Screen ..................................................................................................200 Figure  13-5: Create Self Signed X509 Certificate Screen....................................................................201 Figure  13-6: New Self Signed X509 Certificate Screen .......................................................................201 Figure  13-7: Newly Created Self-Signed Certificate ............................................................................201 Figure  13-8: File Download Window ....................................................................................................202 Figure  13-9: Load MP252’s Local Certificate .......................................................................................202 Figure  13-10: CA's Certificates Page ...................................................................................................202 Figure  13-11: Load CA's Certificate Page ............................................................................................204 Figure  13-12: TR-069 CPE WAN Management Protocol.....................................................................206 Figure  13-13: SNMP Network Architecture ..........................................................................................220 Figure  13-14: Simple Network Management Protocol (SNMP) Screen ...............................................221 Figure  14-1: Firewall in Action ..............................................................................................................225 Figure  14-2: General Security Level Settings.......................................................................................226 Figure  14-3: Access Control .................................................................................................................228 Figure  14-4: Add Access Control Rule .................................................................................................228
Version 3.4.0  13  June 2011 MP252 Multimedia Home Gateway  Contents  Figure  14-5: Port Forwarding Screen ...................................................................................................231 Figure  14-6: Add Port Forwarding Rule................................................................................................231 Figure  14-7: Selecting Protocol Type ...................................................................................................231 Figure  14-8: Specifying Public IP Address ...........................................................................................232 Figure  14-9: Select Check Box of Port Forwarding Rule (Active) ........................................................232 Figure  14-10: DMZ Host .......................................................................................................................234 Figure  14-11: Port Triggering ...............................................................................................................235 Figure  14-12: Adding Port Triggering Rules.........................................................................................236 Figure  14-13: Edit Service Server Ports...............................................................................................236 Figure  14-14: Edit Service Server Ports...............................................................................................236 Figure  14-15: Edit Service Opened Ports.............................................................................................237 Figure  14-16: New Port Triggering Rule...............................................................................................237 Figure  14-17: Website Restrictions ......................................................................................................238 Figure  14-18: Restricted Website .........................................................................................................238 Figure  14-19: Add a Specific Host........................................................................................................238 Figure  14-20: Add a Specific Schedule ................................................................................................239 Figure  14-21: NAT Screen....................................................................................................................241 Figure  14-22: Adding a NAT IP Address ..............................................................................................241 Figure  14-23: Adding NAT/NAPT Rule.................................................................................................242 Figure  14-24: Connections Screen.......................................................................................................244 Figure  14-25: Advanced Filtering .........................................................................................................245 Figure  14-26: Add Advanced Filter.......................................................................................................246 Figure  14-27: Add a Specific Host........................................................................................................247 Figure  14-28: Set Priority Rule .............................................................................................................247 Figure  14-29: Security Log ...................................................................................................................248 Figure  14-30: Security Log Settings .....................................................................................................249 Figure  15-1: DHCP Server Summary...................................................................................................252 Figure  15-2: DHCP Settings Screen ....................................................................................................253 Figure  15-3: DHCP Settings .................................................................................................................254 Figure  15-4: DHCP Relay Server Address Screen ..............................................................................254 Figure  15-5: DHCP Connection Screen ...............................................................................................255 Figure  15-6: DHCP Connection Settings Screen .................................................................................255 Figure  15-7: DNS Server ......................................................................................................................258 Figure  15-8: DNS Entry ........................................................................................................................258 Figure  15-9: Personal Domain Name (Dynamic DNS) Screen ............................................................259 Figure  15-10: Personal Domain Name (Dynamic DNS) - Adding ........................................................259 Figure  15-11: Routing Rules ................................................................................................................261 Figure  15-12: Route Settings Screen ...................................................................................................261 Figure  15-13: PPPoE Relay Screen.....................................................................................................263 Figure  16-1: Advanced - Universal Plug n Play....................................................................................265 Figure  16-2: My Network Places ..........................................................................................................266 Figure  16-3: Internet Connection Status ..............................................................................................267 Figure  16-4: Internet Connection Properties ........................................................................................268 Figure  16-5: Advanced Settings ...........................................................................................................268 Figure  16-6: Service Settings ...............................................................................................................269 Figure  16-7: Service Settings – Add Service........................................................................................269 Figure  17-1: File Server Screen ...........................................................................................................270 Figure  17-2: File Server Share Settings Screen...................................................................................271 Figure  17-3: User Screen .....................................................................................................................272 Figure  17-4: File Server Screen with the Share ...................................................................................272 Figure  17-5: Disk Management Screen................................................................................................273 Figure  17-6: Manually Defining System Storage Area .........................................................................274 Figure  17-7: Disk Information ...............................................................................................................275 Figure  17-8: Partition Type ...................................................................................................................275 Figure  17-9: Partition Size ....................................................................................................................276 Figure  17-10: Partition Format .............................................................................................................276 Figure  17-11: Partition File System ......................................................................................................276 Figure  17-12: Partition Summary .........................................................................................................277 Figure  17-13: Formatting Complete – Partition Ready.........................................................................277
MP252 Multimedia Home Gateway  14  Document #: LTRT-23504   User's Manual Figure  17-14: Partition Properties ........................................................................................................278 Figure  17-15: Partition Format .............................................................................................................278 Figure  17-16: Partition Format .............................................................................................................279 Figure  17-17: Disk Management Screen – Check Box Cleared ..........................................................281 Figure  17-18: RAID Properties Screen.................................................................................................282 Figure  17-19: Partition Format Screen .................................................................................................283 Figure  17-20: Partition File System Screen..........................................................................................283 Figure  17-21: Partition Summary Screen .............................................................................................283 Figure  17-22: Added RAID Devices .....................................................................................................284 Figure  17-23: Advanced – Print Server Screen....................................................................................286 Figure  17-24: Advanced – Printer Screen ............................................................................................286 Figure  17-25: MP252 Shares ...............................................................................................................287 Figure  17-26: Printer Screen – IPP URL ..............................................................................................289 Figure  17-27: Local or Network Printer ................................................................................................289 Figure  17-28: Specify a Printer.............................................................................................................289 Figure  17-29: Printer Screen – IPP URL ..............................................................................................291 Figure  17-30: Linux CUPS Management .............................................................................................291 Figure  17-31: Add Printer .....................................................................................................................292 Figure  17-32: Printer Name ..................................................................................................................292 Figure  17-33: Printing Protocol.............................................................................................................293 Figure  17-34: IPP URL .........................................................................................................................293 Figure  17-35: Print & Fax .....................................................................................................................294 Figure  17-36: Printer Browser – IP Printer ...........................................................................................295 Figure  17-37: Print & Fax – New IPP Printer........................................................................................296 Figure  17-38: Print & Fax .....................................................................................................................297 Figure  17-39: Printer Browser – Default Browser ................................................................................298 Figure  17-40: Printer Browser – More Printers.....................................................................................298 Figure  17-41: Printer Browser – MP252...............................................................................................299 Figure  17-42: Printer Browser – Printer Model.....................................................................................299 Figure  17-43: Print & Fax – New Samba Printer..................................................................................299 Figure  17-44: Local Printer ...................................................................................................................301 Figure  17-45: Select a Printer Port .......................................................................................................301 Figure  17-46: Add Port .........................................................................................................................302 Figure  17-47: Additional Port Information.............................................................................................302 Figure  17-48: Printer Port Monitor Configuration .................................................................................303 Figure  17-49: Add Printer Wizard.........................................................................................................304 Figure  17-50: Print & Fax .....................................................................................................................305 Figure  17-51: Printer Browser – LPD Printer........................................................................................306 Figure  17-52: Print & Fax – New LPD Printer ......................................................................................307 Figure  17-53: MP252 Shares ...............................................................................................................308 Figure  18-1: About MP252 Screen.......................................................................................................310 Figure  18-2: Date and Time Screen .....................................................................................................311 Figure  18-3: Time Server Settings Screen ...........................................................................................312 Figure  18-4: Backup and Restore Screen ............................................................................................313 Figure  18-5: Edit Backup Screen .........................................................................................................314 Figure  18-6: Restore Screen ................................................................................................................315 Figure  18-7: Configuration File Screen ................................................................................................316 Figure  18-8: Upload Configuration File ................................................................................................318 Figure  18-9: Loading Configuration File from a PC on the Network ....................................................318 Figure  18-10: Successful Configuration File Uploading .......................................................................319 Figure  18-11: Upload Configuration File ..............................................................................................320 Figure  18-12: MP252 Firmware Upgrade Screen ................................................................................325 Figure  18-13: Upgrade From a Computer in the Network Screen .......................................................326 Figure  18-14: Confirming Firmware Upgrade Screen ..........................................................................326 Figure  18-15: Upgrading in Progress Screen.......................................................................................326 Figure  18-16: Advanced - Firmware and Configuration Upgrade ........................................................327 Figure  18-17: System Settings Screen (Only Partial View due to Screen Size) ..................................329 Figure  18-18: Reboot Screen ...............................................................................................................332 Figure  18-19: Restore Factory Settings Screen ...................................................................................333
Version 3.4.0  15  June 2011 MP252 Multimedia Home Gateway  Contents  Figure  19-1: Diagnostics Screen ..........................................................................................................334 Figure  19-2: Running a Ping Test ........................................................................................................336 Figure  19-3: Running an ARP Test ......................................................................................................336 Figure  19-4: Running a Traceroute ......................................................................................................337 Figure  19-5: Running a PVC Scan .......................................................................................................337 Figure  19-6: Running an OAM Ping Test .............................................................................................338 Figure  19-7: Network Connections Screen ..........................................................................................339 Figure  19-8: System Log Screen..........................................................................................................340 Figure  19-9: CPU Screen .....................................................................................................................342 Figure  19-10: VoIP Screen ...................................................................................................................343 Figure  19-11: Internet Connection Utilization – By Computer Screen .................................................344 Figure  19-12: Internet Connection Utilization – By Application Screen ...............................................344 Figure  22-1:  Plastic Tab jutting out from Battery Compartment ..........................................................352 Figure  22-2:  Attaching Handset Cradle to MP252 Base Unit..............................................................352 Figure  22-3:  Handset Charging in Cradle............................................................................................353 Figure  22-4:  Installing Batteries...........................................................................................................355 Figure  22-5:  Areas of the Handset ......................................................................................................356 Figure  22-6:  Areas of the Handset LCD Screen..................................................................................359 Figure  22-7:  Handset Keypad .............................................................................................................362
MP252 Multimedia Home Gateway  16  Document #: LTRT-23504   User's Manual List of Tables Table  1-1: MP252 Available Models.......................................................................................................23 Table  3-1: Front-Panel Buttons Description ...........................................................................................28 Table  3-2: Front-Panel LEDs Description...............................................................................................29 Table  3-3: Front-Panel LED Descriptions for Automatic Dialer Feature ................................................30 Table  3-4: Rear-Panel Ports Description................................................................................................31 Table  3-5: Rear-Panel LEDs Description ...............................................................................................32 Table  4-1: Menu Description ..................................................................................................................40 Table  4-2: Table Action Icons Description..............................................................................................43 Table  5-1: Map View Icon Description....................................................................................................57 Table  8-1: Signaling Protocol Tab Parameters Description ...................................................................79 Table  8-2: Dialing Tab Parameters Description .....................................................................................87 Table  8-3: Dial Plan (for Left of '=' Sign) and Digit Map Syntax .............................................................89 Table  8-4: Media Streaming Tab Parameters Description .....................................................................90 Table  8-5: Voice and Fax Tab Parameters Description .........................................................................93 Table  8-6: Services Tab Parameters Description ..................................................................................96 Table  12-1: Wireless Tab – Basic Wireless Access Point Parameters Description.............................156 Table  12-2: Settings Tab - Parameter Descriptions .............................................................................172 Table  12-3: Routing Parameters ..........................................................................................................176 Table  12-4: PPP Tab Parameter Descriptions .....................................................................................178 Table  12-5: PPTP Tab Parameter Descriptions...................................................................................180 Table  12-6: VLAN Interface - General Communication Parameters ....................................................183 Table  12-7: IP Address Distribution Parameters..................................................................................184 Table  12-8: DHCP Relay ......................................................................................................................185 Table  12-9: Assigning Static IP Addresses to Network Computers .....................................................185 Table  12-10: Routing Parameters ........................................................................................................187 Table  13-1: Main Configuration Parameter Groups .............................................................................194 Table  13-2: Status and Performance Monitoring Parameters..............................................................196 Table  13-3: Notifications and Logged Events ......................................................................................197 Table  13-4: Severity of Logged Events ................................................................................................197 Table  13-5: Operations per Configuration/Management Interface.......................................................205 Table  13-6: InternetGatewayDevice.WANDevice.i.WANConnectionDevice.i.WANIPConnection.i.....207 Table  13-7: InternetGatewayDevice.LANDevice.i.LANEthernetInterfaceConfig..................................208 Table  13-8: InternetGatewayDevice.LANDevice.i.LANHostConfigManagement.................................210 Table  13-9: InternetGatewayDevice.Services.VoiceService.i.Capabilities ..........................................211 Table  13-10: InternetGatewayDevice.Services.VoiceService.i.Capabilities.Codecs ...........................213 Table  13-11: InternetGatewayDevice.Services.VoiceService.i.VoiceProfile........................................214 Table  13-12: InternetGatewayDevice.Services.VoiceService.i.VoiceProfile.i.SIP ...............................214 Table  13-13: InternetGatewayDevice.DeviceInfo.................................................................................215 Table  13-14: InternetGatewayDevice.WANDevice.i.WANConnectionDevice.i. WANIPConnection.i.Stats.....................................................................................................................217 Table  13-15: InternetGatewayDevice.LANDevice.i.LANEthernetInterfaceConfig.i.Stats ....................217 Table  13-16: InternetGatewayDevice.Services.VoiceService.i.VoiceProfile.i.Line.i.Stats...................218 Table  13-17: Table  3-13: Information Elements Available via MIB-II ...................................................222 Table  14-1: Behavior for the Three Security Levels.............................................................................227 Table  17-1: IPP, Samba, and LPD Specifications................................................................................288 Table  22-1: Handset Description ..........................................................................................................357 Table  22-2: Handset LCD Icon Descriptions ........................................................................................359 Table  22-3: Handset LCD Menus and Submenus ...............................................................................360 Table  22-4: Handset LCD Menus and Submenus Accessed using Navigation Keys ..........................361 Table  22-5: DECT LED Description .....................................................................................................363 Table  22-6: About MP252 Screen ........................................................................................................364 Table  22-7: Line Settings Screen .........................................................................................................365 Table  22-8: Defining Line 3 Properties.................................................................................................365 Table  29-1: Factory Defaults ................................................................................................................399 Table  30-1: Troubleshooting.................................................................................................................401 Table  A-1: MP252 Router and VoIP Software Specifications ..............................................................403 Table  A-2: MP252WDNB DECT Phone Specifications........................................................................406
Version 3.4.0  17  June 2011 MP252 Multimedia Home Gateway  Contents
MP252 Multimedia Home Gateway  Notices Version 3.4.0  19  July 2011  Notice This  document  describes  the  installation  and  configuration  of  AudioCodes  MP252BW  and MP252WDNB MediaPack™ 252 Multimedia Home Gateway series Version 3.4.0. Information contained in this document is  believed to be accurate  and reliable at the time of printing.  However,  due  to  ongoing  product  improvements  and  revisions,  AudioCodes  cannot guarantee accuracy of printed material after the Date Published nor can it accept responsibility for errors or omissions. Updates to this document and other documents as well as software files can be viewed by registered customers at http://www.audiocodes.com/downloads. © 2011 AudioCodes Inc. All rights reserved This document is subject to change without notice. Date Published: May-30-2011  Trademarks AudioCodes, AC, AudioCoded, Ardito, CTI2, CTI², CTI Squared, HD VoIP, HD VoIP Sounds Better, InTouch, IPmedia, Mediant, MediaPack, NetCoder, Netrake, Nuera, Open Solutions Network,  OSN,  Stretto,  TrunkPack,  VMAS,  VoicePacketizer,  VoIPerfect,  VoIPerfectHD, What’s  Inside  Matters,  Your  Gateway  To  VoIP  and  3GX  are  trademarks  or  registered trademarks of AudioCodes Limited. All other products  or trademarks are property  of  their respective owners. WEEE EU Directive Pursuant to the WEEE EU Directive, electronic and electrical waste must not be disposed of with unsorted waste. Please contact your local recycling authority for disposal of this product. Customer Support Customer technical support and service are generally provided by AudioCodes’ Distributors, Partners, and Resellers from whom the product was  purchased. For technical support for products purchased directly from AudioCodes, or for customers subscribed to AudioCodes Customer Technical Support (ACTS), contact support@audiocodes.com. Abbreviations and Terminology Each abbreviation, unless widely used, is spelled out in full when first used.  When the term 'device' is used, it refers to MP252. Regulatory Information The Regulatory Information can be viewed at www.audiocodes.com/library.
MP252 Multimedia Home Gateway  20  Document #: LTRT-23504   User's Manual Related Documentation  Document Name Demo Guide Multimedia Home Gateway Quick Guide Release Notes Routing Performance Technical Application Note  Safety Warnings    Note:  Open source software may have been added and/or amended for this product. For  further  information  please  visit  our  website  at: http://audiocodes.com/support  or  contact  your  AudioCodes  sales representative.   Warning: Before connecting MP252 to power: • Use only the AC/DC power adapter supplied with MP252. Do not use any other power adapter. This power adapter is a 12 VDC +/-10%, tolerance, 2A, limited power source wall-mount Class II power supply adapter. • Ensure that the VAC ratings match. • Ensure that you have read the Regulatory Information, obtained from www.audiocodes.com/library.
MP252 Multimedia Home Gateway  1. Introduction Version 3.4.0  21  June 2011 For Customers in Canada This Class [B] digital apparatus complies with Canadian ICES-003. Cet appareil numérique de la classe [B] est conforme à la norme NMB-003 du Canada.  Operation is subject to the following two conditions: (1) this device may not cause interference, and  (2)  this  device  must  accept  any  interference,  including  interference  that  may  cause undesired operation of the device.  This device and its antenna(s) must not be co-located or operating in conjunction with any other antenna or transmitter.  The County Code Selection feature is disabled for products marketed in the US/Canada.  IC Radiation Exposure Statement This equipment complies with IC RSS-102 radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance of 20 cm between the radiator and your body.
MP252 Multimedia Home Gateway  22  Document #: LTRT-23504   User's Manual Reader’s Notes
MP252 Multimedia Home Gateway  1. Introduction Version 3.4.0  23  June 2011 1  Introduction  The MediaPack™ 252 (MP252) is a sophisticated, feature-rich, multimedia home gateway for  broadband  networks  with  multi-play  support.  With  ADSL2+  modem,  multiple  antenna wireless  LAN  connectivity,  Digital  Enhanced  Cordless  Telecommunications  (DECT) handsets supporting High Definition (HD) Voice-over-IP (VoIP), and optional battery backup, this is a true all-in-one gateway for Multi-play services. The  MP252  is  ideal  for  operators,  seeking  new  revenue  generators  with  state-of-  the-art features, such as:  ADSL/ADSL2+ modem, up to 24 Mbps  10/100 Ethernet WAN port (optional connection to cable modem or FTTH ONU)  Optional ADSL WAN backup using 3G USB dongles  HD VoIP telephony and PBX capabilities, including flexible configuration of individual SIP accounts per DECT extension  Four 10/100 Ethernet LAN ports  High-speed wireless network (802.11 b/g/n), up to 150 Mbps  Router, Firewall, NAT and advanced traffic prioritization mechanisms  2 FXS ports for analog phones and fax machines  Guaranteed Quality of Service (QoS) for IPTV service  Print server and File server, accessible from every computer on the home network  Advanced TR-069 management, interoperable with leading Auto-Configuration Servers (ACS)  Optional battery backup for up to 4 hours standby The MP252 is based on AudioCodes’ MP-2xx line of Residential Gateways and AudioCodes VoIPerfect™  software  architecture.  The  MP252  is  interoperable  with  various  softswitches and  supports  advanced  TR-069  management,  working  with  market  leading Auto-Configuration Servers (ACS). Other management tools, such as a friendly HTTP-based Web GUI, and Command Line Interface (CLI) are also available. The MP252 is available in the following models: Table 1-1: MP252 Available Models Model  ADSL + 4 LAN Wi-Fi 802.11n DECT HD VoIP VoIP 2 FXS  USB 2.0 MP252BW  √ √  -  √  1 MP252WDNB  √ √ √ √  3    Note:  All  DECT  and  PBX--related  functionalities  are  supported  only  by  the MP252WDNB.
MP252 Multimedia Home Gateway  24  Document #: LTRT-23504   User's Manual The figure below illustrates the typical applications supported by MP252: Figure 1-1:  MP252 Typical Application
MP252 Multimedia Home Gateway  2. Package Contents and Prerequisites Version 3.4.0  25  June 2011 2  Package Contents and Prerequisites The MP252 is shipped with the following items:   1 x RJ-11 telephone cable  1 x RJ-45 Ethernet cable  12V AC/DC power adaptor (use only supplied)  DECT handset and cradle Make  sure  that  all  these  items  are  included.  If  any  items  are  missing,  contact  your  sales representative. The following prerequisites are required (not supplied by AudioCodes):  A broadband Internet connection  ADSL cable (if required)  Analog telephones  Additional RJ-11 telephone cable (if required)  Additional RJ-45 Ethernet cables (if required)
MP252 Multimedia Home Gateway  26  Document #: LTRT-23504   User's Manual Reader’s Notes
MP252 Multimedia Home Gateway  3. Hardware Description Version 3.4.0  27  June 2011 3  Hardware Description This section describes the physical description and cabling of the MP252. This includes both models (i.e., MP252BW and MP252WDNB). 3.1  Physical Description The MP252 provides ports, buttons, and LEDs on its front and rear panels. 3.1.1  Front Panel The  front  panel  provides  LEDs  for  displaying  various  operating  status  and  button(s)  for activating various features such as Wi-Fi. For more information on the LEDs, see Section 3.1.1.2 on page 29. For more information on the buttons, see Section 3.1.1.1 on page 28. The figures below display the front panels of the MP252 models. Figure 3-1:  Front Panel of MP252BW   WiFi Button LEDs
MP252 Multimedia Home Gateway  28  Document #: LTRT-23504   User's Manual Figure 3-2:  Front Panel of MP252WDNB  3.1.1.1  Front-Panel Buttons Description The button(s) on the front panel are described in the table below: Table 3-1: Front-Panel Buttons Description Label  Description WiFi  Activates or deactivates Wi-Fi connectivity (802.11 b/g/n).  Dect1 Registers the handset to the MP252 base unit. Bluetooth2 Currently not supported.                                                        1 This button is available only on the MP252WDNB model. 2 This button is available only on the MP252WDNB model. WiFi Button DECT Button Bluetooth Button
MP252 Multimedia Home Gateway  3. Hardware Description Version 3.4.0  29  June 2011 3.1.1.2  Front-Panel LEDs Description The LEDs on the front panel are described for general functionality and for the Automatic Dialer feature.   3.1.1.2.1  General Description The general description of the MP252 front-panel LEDs are described in the table below: Table 3-2: Front-Panel LEDs Description LED  Color  State  Description On  Device start-up successful Slow Blinking Software upgrade in progress. Note: During software upgrade, the Broadband and Phone LEDs also blink green. Slow Blinking Battery backup is in use and there is no power from the AC electrical outlet. Green Fast Blinking Battery is low and there is no power from the AC electrical outlet. Status Red On  Reboot (automatic, by default) or indicates a problem On  WAN port is successfully connected and IP address acquired successfully  Green Blinking  Software upgrade in process Red On  WAN IP address has not yet been acquired from the ISP (i.e. in the process of acquiring or has failed to acquire). Broadband -  Off  WAN Ethernet cable is not connected – no WAN link On  All configured phones are registered to the Proxy server Green Blinking  Software upgrade in process Red On  At least one of the phones failed to register to the Proxy server Phone -  Off  No Proxy server is configured Green On  Wi-Fi is enabled and active WiFi Red  Off  Wi-Fi is disabled
MP252 Multimedia Home Gateway  30  Document #: LTRT-23504   User's Manual 3.1.1.2.2  Automatic Dialer Feature The table below describes the front-panel LEDs behavior when the Automatic Dialer feature is used (described in detail in Section 7.2). Table 3-3: Front-Panel LED Descriptions for Automatic Dialer Feature LED Stage Status  Broadband  Phone During boot Red  Off  Off Before WAN physical link detection Green  Blinking Red Off During automatic dialer operation Green  Blinking Green Off Automatic dialer success Green  Green  Green* Automatic dialer failure  Green  Red  Off *  The  Phone  LED  lights  green  only  after  MP252  connects  to  the  Internet,  downloads  its configuration file, and then registers to the VoIP service. 3.1.2  Rear Panel The rear panel provides the ports for connecting the various interfaces. The figures below display the rear panels of the MP252 models. Figure 3-3:  Rear Panel of MP252BW    Reset Button Battery Backup Port Power Plug FXS Phone Ports LAN/WAN Port ADSL Port LAN Ports USB Plug Power Button
MP252 Multimedia Home Gateway  3. Hardware Description Version 3.4.0  31  June 2011 Figure 3-4:  Rear Panel of MP252WDNB    3.1.2.1  Rear-Panel Port Description The ports of the rear panel are described in the table below: Table 3-4: Rear-Panel Ports Description Label  Description ADSL  RJ-11 port for connecting ADSL/ADSL2+ modem (up to 24 Mbps) LAN  3 x RJ-45 10/100Base-T Ethernet LAN ports LAN/WAN  1 x RJ-45 10/100Base-T Ethernet LAN or Ethernet WAN port Phone  2 x RJ-11 FXS ports for connecting analog phones and fax machines USB3 USB Type A port for print or file servers, or for optional WAN backup using a 3G USB dongle Power  Power plug for connecting the supplied AC/DC power adapter. A button is located above this port to switch on the MP252. Battery Backup Port for connecting an optional battery backup, providing up to four hours standby power. (The external battery backup system connects to this port and the Power plug using a splitter cable.)                                                       3 The MP252WDNB model provides two USB ports in this location. Reset Button Battery Backup Port Power Plug USB (3) Plug FXS Phone Ports LAN/WAN Port ADSL Port LAN Ports USB (1 & 2) Plugs Power Button
MP252 Multimedia Home Gateway  32  Document #: LTRT-23504   User's Manual Label  Description USB34 USB port (located on the side panel, as shown in Figure 3-4). Reset  Reset pin button for resetting the MP252.  3.1.2.2  Rear-Panel LEDs Description The LEDs on the rear panel are described in the table below: Table 3-5: Rear-Panel LEDs Description LED  Color  State  Description On  ADSL physical link is up Slow Blinking  ADSL link is synchronizing Green Fast Blinking  ADSL attempting to train (establishing a connection with the Internet Service Provider) ADSL -  Off  No physical ADSL link Green Blinking  LAN / WAN connection sending / receiving data at 100 Mbps  Yellow Blinking  LAN / WAN connection sending / receiving data at 10 Mbps  LAN / WAN -  Off  No LAN / WAN traffic or Ethernet cable is disconnected On  Phone is off-hook  Slow Blinking  Phone is ringing Green Fast Blinking  MP252 is currently being upgraded Phone -  Off  Phone is on-hook and not ringing Green On  USB device is connected USB -  Off  No USB device is connected                                                       4 This USB port is available on the MP252WDNB model.
MP252 Multimedia Home Gateway  3. Hardware Description Version 3.4.0  33  June 2011 3.2  Cabling  The procedure below describes the cabling of the MP252.    Warning:  • Use only the AC/DC power adapter supplied with MP252. Do not use any other power adapter. • Ensure that the VAC ratings match. • Ensure that you have read the MP252 Regulatory Information, obtained from www.audiocodes.com/library.   Note:  The cabling procedures for the MP252 models are identical and therefore, no distinction  is  made  between  the  models  in  this  section.  However,  for convenience, this section uses the MP252WDNB model as an example.  The figure below displays a summary of the cabling procedures. Figure 3-5:  Cabling MP252
MP252 Multimedia Home Gateway  34  Document #: LTRT-23504   User's Manual  To cable MP252: 1.  Connect MP252 to the Internet. The cabling depends on the Internet connection:   • ADSL: connect the ADSL port (located on the rear panel and labeled ADSL) to the telephone socket, using an RJ-11 telephone cable. • WAN Ethernet: connect the LAN4/WAN port (located on the rear panel and labeled LAN 4/WAN) to an external modem, using a CAT-5 Ethernet cable.   Note:  Use minimum  26 AWG  wire for cabling the ADSL port to the public switched telephone network (PSTN).  2.  Connect  the  LAN  Ethernet  ports  (labeled  LAN  1  -  4)  to  your  LAN  computers,  using RJ-45 CAT-5 Ethernet cables. 3.  Connect the telephone ports (labeled Phone 1 - 2) to analog telephones, using RJ-11 telephone cables. 4.  Connect MP252 to a standard 110/220 VAC electrical wall outlet, using the supplied AC/DC power adapter. When MP252 is powered on, the Status LED is lit. After initialization completes (about two minutes),  this  LED  changes  from  red  to  green.  If  no  power  is  received  by  MP252, press the Power button located on the rear panel to switch it on.  3.3  Mounting You can place MP252 on a desktop or mount it on a wall. For desktop mounting, MP252 provides integrated rubber feet on its base so that it sits firmly on a desktop. Alternatively, you can hang your MP252 on a wall, using the supplied MP252 wall-mounting bracket, as described in this section. Wall mounting consists of the following main procedural stages:  Preparing the mounting screws on the wall   Hanging the mounting bracket on the wall   Attaching MP252 to the mounting bracket Before you begin, ensure that you have the following items:  Wall-mounting bracket (supplied)  2 x screws  2 x wall anchors  Screwdriver   Note:  When choosing a wall on which to mount MP252, consider cable limitations and wall structure.  To wall-mount MP252: 1.  Prepare the wall-mounting screws: a.  Drill two holes in the wall according to the wall-mounting bracket dimensions. The vertical distance between the holes should be 83 mm (3.27 inches). b.  Insert a wall anchor into each hole.
MP252 Multimedia Home Gateway  3. Hardware Description Version 3.4.0  35  June 2011 c.  Using a screwdriver, drive screws of the appropriate size into the anchors, leaving approximately 4 mm (0.16 inches) of the screw head jutting out. This protrusion will allow you to hang the mounting bracket on the screw head.  Figure 3-6: MP 252 Wall Mount Bracket  2.  Hang the mounting bracket on the wall screws: a.  Gently slide the mounting bracket onto the lower screw so that the screw enters the bracket's bottom screw groove rail. As you lower the bracket onto the screw, ensure that the upper screw fits into the bracket's top screw groove. b.  Gently pull down on the mounting bracket so that both screw heads sit firmly and securely in the top notch of the screw grooves. 3.  Attach MP252 to the wall-mounting bracket: a.  Three slits at the base (bottom) of MP252 are covered by rubber caps. Remove these caps. b.  With its rear panel facing the mounting bracket, hold MP252 at an angle and  slide the base of MP252 under the two latches located on the mounting bracket. c.  Align the three slits on the MP252 base with the three protruding humps located on the front of the mounting bracket. Align the clip holes on either side of MP252 with the clips on the mounting bracket. d.  While gently pressing down on MP252, press the clips inwards so that the clips snap into the base of MP252.
MP252 Multimedia Home Gateway  36  Document #: LTRT-23504   User's Manual Figure 3-7: Attaching Phone Base to Wall Mount  If for any reason, you want to remove MP252 from the wall, follow the procedure below:  To dismount MP252 from the wall: 1.  Press the mounting bracket clips inwards. 2.  Lift the MP252 base off the mounting bracket.
    Part I Gateway Configuration Part I describes the configuration of the MP252 router and VoIP functionality analog, and includes the following chapters:  Setting up an Internet Connection  Using MP252's Web Interface   Configuring VoIP Parameters  Connecting MP252 to a VoIP Service Provider  Making VoIP Calls  Quality of Service (QoS)  LAN Connection  WAN Connection  Editing Network Connections and Advanced Configuration  VLAN Settings  LAN-WAN Bridge Settings  Remote MP252 Management  Security  Advanced Settings  System Monitoring
  Reader’s Notes
Version 3.4.0  39  July 2011 MP252 Multimedia Home Gateway  4. Getting Started with the Web Interface  4  Getting Started with the Web Interface The  MP252  embedded  Web  server  (Web  interface)  provides  a  user-friendly  Web-based management tool that allows you to configure and monitor MP252. This chapter describes how to access, navigate in, and configure parameters with the Web interface.  4.1  Logging in to the Web Interface The procedure below describes how to log in to the MP252 Web interface.  To log in to the MP252 Web interface: 1.  Connect a PC directly to the LAN port (labeled LAN 1) of the MP252. 2.  On your PC, open a Web browser (e.g., Internet Explorer) and in the URL field, enter http://mp252.home (or  192.168.2.1).  If  your  MP252  is  already  connected  to  the network  and  you  know  its  IP  address,  then  enter  its  IP  address  instead.  The  ‘Login’ screen appears: Figure 4-1: Login Screen  3.  From the ‘Language’ drop-down list, select the desired language for the Web graphical user interface (GUI) display. 4.  In  the  'User  Name'  and  'Password'  fields,  define  a  login  username  and  password, respectively. This is applicable only if this is your first time that you are logging in to the Web interface. If you have logged in before, then enter the username and password that you defined previously.  5.  Click Continue; the ‘Quick Setup’ screen appears, allowing  you to quickly set up an Internet connection (as described in Chapter 5 on page 55).   Notes:   • The default username and password is "admin" (case-sensitive).  • If you wish to view the entered password (instead of asterisks), then select the ‘Show password’ check box. • You can later change the username and password as described in Section 4.4 on page 331. • If the Web interface is inactive for 15 minutes after logging in, the ‘Login’ screen appears again, prompting you to re-login.
MP252 Multimedia Home Gateway  40  Document #: LTRT-23504   User's Manual  4.2  Menu Bar Description The  Web  interface  screens  are  conveniently  grouped  into  related  themes  under  specific menus. These menus are located in the menu bar. The table below describes these menus. Table 4-1: Menu Description Menu  Description Home  Displays the Map View (refer to Section 5 on page 55). Quick Setup Displays the 'Quick Setup' screen for quickly setting up an Internet connection with MP252 (see Section 7.1 on page 63). Network Connections Displays the 'Network Connections' screen for configuring network connections:  LAN (see Chapter 12.2 on page 151)  WAN (see Chapter 12 on page 131)  VLANs (see Chapter 12.4 on page 181)  LAN-WAN bridging (see Section 12.5 on page 188) Security  Displays the 'Security' screen for configuring security-related features such as Website restrictions (see Chapter 14 on page 225). Voice Over IP  Displays the 'Voice Over IP' screen for configuring the VoIP parameters to use MP252's VoIP functionality to place and receive calls over the Internet using a standard telephone set and DECT handset (see Chapter8 on page 77). QoS Displays the 'Quality Of Service' screen for configuring Quality of Service (QoS) for MP252 (see Chapter 11 on page 113). Advanced  Displays the 'Advanced' screen for configuring system parameters (e.g., DHCP server and DNS) and for administrative functions (e.g., changing password, setting date and time, and upgrading the system).  Icon  Name  Description  About MP252 Displays technical information about MP252, including version number (see Section 18.1 on page 310).  Backup and Restore Backup user and system data (see Section 18.2 on page 311).  Certificates Manages digital certificates (see Section 13.3 on page 200).  Configuration File Loads the Configuration File to MP252 (see Section 18.4 on page 316). Note: You can hide the Configuration File icon, by running the following CLI command in a Telnet session with MP252: rg_conf_set rmt_config/hide_config_file_page 1. This is useful, for example, in scenarios where you want to prevent a user accessing the Web interface to change the configuration file.
MP252 Multimedia Home Gateway  4. Getting Started with the Web Interface Version 3.4.0  41  June 2011 Menu  Description  DNS Server Alias a dynamic IP address to a static hostname (see Section 15.2 on page 257).  Diagnostics Performs networking diagnostics (see Section 19.1 on page 334).  Disk Management Manages different disks connected to MP252 (see Section 17.2 on page 272).  File Server  Creates a file server on MP252 (see Section 17.1 on page 270).  Firmware Upgrade Upgrades the MP252 firmware (see Section 18.5 on page 323).  IP Address Distribution Modifies the DHCP server for each LAN device and displays a list of DHCP clients in the local network (see Section 15.1 on page 251).  Network Objects Defines groups of LAN devices for system rules (see Section 4.5.2 on page 50).  PPPoE Relay Enables PPPoE relay on MP252 (see Section 15.5 on page 262).  Personal Domain Name (Dynamic DNS) Displays and modifies the DNS hosts table (see Section 15.2 on page 257).  Print Server  Shares a LAN printer (see Section 17.3 on page 286).  Protocols Manages protocols (see Section4.5.3 on page 51).  Reboot Restarts MP252 (see Section 18.6 on page 329).  Regional Settings Modifies the regional settings (see Section 8.10 on page 105).  Remote Administration Configures remote administration privileges (see Section 13.2 on page 197).  Restore Factory Settings Restores default factory settings (see Section 18.8 on page 333).
MP252 Multimedia Home Gateway  42  Document #: LTRT-23504   User's Manual  Menu  Description  Routing Manages routing policies (see Section 15.4 on page 261).  Scheduler Defines time segments for system rules (see Section 4.5.1 on page 47).  Simple Network Management Protocol (SNMP) Configures MP252's SNMP agent (see Section 13.2 on page 197).  System Settings Modifies administrator settings, including the MP252 host name (see Section 15.5 on page 262).  Time Settings Configures the local date and time (see Section 18.2 on page 311).  Universal Plug  and Play Configures Universal Plug-and-Play (UPnP) parameters (see Section 16.1 on page 265).  Users Configures Users (see Section 4.4 on page 44).  WINS Server  Registers host names and IP addresses of WINS clients (see Section Error! Reference source not found. on page Error! Bookmark not defined.).  System Monitoring Displays the 'System Monitoring' screen for viewing various statuses such as network and traffic statistics (see Chapter 16 on page 265). Logout  Logs off the MP252 Web interface.
MP252 Multimedia Home Gateway  4. Getting Started with the Web Interface Version 3.4.0  43  June 2011 4.3  Managing Tables Tables appear throughout the Web interface for configuring MP252. This section describes the how to use these tables to configure MP252. The figure below displays a typical table in the Web interface: Figure 4-2: Typical Table Structure  Each  table  row  denotes  an  entry  in  the  table.  The  table  also  provides  'Action'  icons  for performing various tasks. These icons are described in the table below. Table 4-2: Table Action Icons Description Action Icon  Name  Description  New  Adds a new row to the table or opens another screen for adding an entry.  Edit  Modifies a row entry in the table.  Remove  Deletes a row entry in the table.  Download Downloads a file to a folder on your computer.
MP252 Multimedia Home Gateway  44  Document #: LTRT-23504   User's Manual  4.4  Configuring Users The 'Users' screen allows you to add new users and assign login usernames and passwords. You may also group users according to your preferences. The default user is "Administrator" with "admin" (case-sensitive) as the username and password.  To configure users: 1.  In the 'Advanced' screen, click the Users    icon; the 'Users' screen appears. Figure 4-3: Users Screen
MP252 Multimedia Home Gateway  4. Getting Started with the Web Interface Version 3.4.0  45  June 2011 2.  In the Users table, click the New User   icon; the 'Users Settings' screen appears. Figure 4-4: Users Settings Screen   3.  Add a new user by configuring the following fields: a.  Full Name:  Enter a remote user's full name. b.  User Name: Enter a user name to access your home network. c.  New Password: Enter a new password for the remote user. If you do not want to change the remote user's password leave this field empty. d.  Retype New Password: If a new password was assigned, enter it again to verify correctness. e.  Role: User’s role indicating privilege level, where “admin” possesses all privileges. f.  Access Level – Read Only: Select this check box if you want this user to have read-only privileges. g.  Disk Management: By default, this option is selected. When activated, it creates a directory for the user in the 'Home' directory of the system storage area. This directory is necessary when using various applications such as the mail server. h.  Email Notification: You can use email notification to receive indications of system events for a predefined severity classification. The available types of events are 'System' or 'Security' events. The available severity of events is 'Error', 'Warning' and 'Information. If the 'Information' level is selected, the user receives notification of the 'Information', 'Warning' and 'Error' events. If the 'Warning' level is selected, the user receives notification of the 'Warning' and 'Error' events etc.
MP252 Multimedia Home Gateway  46  Document #: LTRT-23504   User's Manual  ♦ Click here to configure notification mail server: This opens the ‘System Settings’ screen (see Section 15.5 on page 262) where you can define an outgoing mail server. ♦ Notification Address: user’s email address. ♦ System Notify Level: By default, the 'None' option is selected, which means that MP252 does not send notifications to a remote host. To activate the feature, select one of the following notification types:  Error  Warning  Information ♦ Security Notify Level: The remote security notification level can be one of the following:  None  Error  Warning  Information 4.  Click OK.   Note:  Modifying any of the user parameters prompts the connection associated with the  user  to  terminate.  For  changes  to  take  effect,  you  should  activate  the connection manually after modifying user parameters.
MP252 Multimedia Home Gateway  4. Getting Started with the Web Interface Version 3.4.0  47  June 2011  To configure user groups: 1.  In the 'Users' screen, under the Groups group, click New Group   icon; the 'Group Settings' screen appears. Figure 4-5: Group Settings Screen  2.  In the 'Name' field enter a name for the group. 3.  In the 'Description' field, enter a brief description of this group. 4.  In the 'Group Members' list, select the users that you want to assign to this group. 5.  Click OK.   4.5  Defining Associated Elements You can define certain elements and then use them later when configuring various features throughout  the  Web  interface.  This  is  very  convenient  in  that  it  eliminates  the  need  to re-configure  the  same  element,  especially  if  used  in  multiple  configuration  areas.  These elements include the following:  Scheduler Rules – see Section 4.5.1 on page 47  Network Objects – see Section 4.5.2 on page 50  Protocols – see Section 4.5.3 on page 51 4.5.1  Defining Scheduler Rules Scheduler rules are used for limiting the activation of firewall rules to specific time periods, specified in days of the week, and hours.  To define a Rule: 1.  In the 'Advanced' screen, click the Scheduler   icon; the 'Scheduler Rules' screen appears. Figure 4-6: Scheduler Rules Screen
MP252 Multimedia Home Gateway  48  Document #: LTRT-23504   User's Manual   2.  Click the New   icon; the 'Edit Scheduler Rule' screen appears.  Figure 4-7: Edit Scheduler Rule Screen  3.  In the 'Name' field, specify a name for the scheduler rule. 4.  Under the Rule Activity Settings group, specify if the rule is active or inactive during the designated time period, by selecting the appropriate check box.
MP252 Multimedia Home Gateway  4. Getting Started with the Web Interface Version 3.4.0  49  June 2011 5.  Click the New   icon to define the time segment to which the rule applies; the 'Edit Time Segment' screen appears. Figure 4-8: Edit Time Segment Screen  a.  Under the Days of Week group, select the days of the week for which you want the rule to be active. b.  In the Hours Range table, click the New   icon to define an active or inactive hourly range; the ‘Edit Hour Range’ screen appears. Figure 4-9: Edit Hour Range Screen  c.  In the ‘Start Time’ and ‘End Time’ field, enter the time interval in which the scheduler rule is active or inactive.  6.  Click OK to save the settings.
MP252 Multimedia Home Gateway  50  Document #: LTRT-23504   User's Manual  4.5.2  Defining Network Objects Network objects is a method used to logically define a set of LAN hosts, according to one or more MAC address,  IP address,  and  host  name. Defining  such  a  group  can  assist  when configuring other system rules. For example, you can use network objects to apply security rules based on host names instead of IP addresses. This may be useful, since IP addresses change from  time to  time. Moreover,  it is possible  to  define  network  objects  according  to MAC  addresses,  making  rule  application  more  persistent  against  network  configuration settings.  To define a network object: 1.  In the 'Advanced' screen, click the Network Objects   icon; the 'Network Objects' screen appears. Figure 4-10: Network Objects Screen  2.  Click the New   icon; the 'Edit Network Object' screen appears. Figure 4-11: Edit Network Objects Screen  3.  In the 'Description' field, enter a name for the network object, and then click the New   icon; the 'Edit Item' screen appears. Figure 4-12: Edit Item Screen
MP252 Multimedia Home Gateway  4. Getting Started with the Web Interface Version 3.4.0  51  June 2011 4.  From the 'Network Object Type' drop-down lists, select a source address type: • IP Address • IP Subnet • IP Range • MAC Address • Host Name • DHCP Option (supporting options 60, 61, and 77)  • All Private IP Addresses When selecting a method from the drop-down list, the screen refreshes, presenting the respective fields by which to enter the relevant information. 5.  Click OK to save the settings.  4.5.3  Defining Protocols The  Protocols  feature  incorporates  a  list  of  preset  and  user-defined  applications  and common port settings. You can use protocols in various security features such as Access Control and Port Forwarding. You may add new protocols to support new applications or edit existing ones according to your needs.  To define a protocol: 1.  In the 'Advanced' screen, click the Protocols   icon; the 'Protocols' screen appears. Figure 4-13: Advanced - Protocols
MP252 Multimedia Home Gateway  52  Document #: LTRT-23504   User's Manual   2.  Click the New   icon; the 'Edit Service' screen appears. Figure 4-14: Advanced - Protocols - Edit Service  3.  In the 'Service Name' field, enter the name of the service, and then click the New   icon; the 'Edit Service Server Ports' screen appears. Figure 4-15: Advanced - Protocols - Edit Service - Server Ports
MP252 Multimedia Home Gateway  4. Getting Started with the Web Interface Version 3.4.0  53  June 2011  4.  You may choose any of the protocols available in the drop-down list, or add a new one by  selecting  'Other'.  When  selecting  a  protocol  from  the  drop-down  list,  the  screen refreshes, presenting the respective fields by which to enter the relevant information. 5.  Select a protocol and enter the relevant information. 6.  Click OK to save the settings.   4.6  Logging out the Web Interface To log out the MP252, click the Logout menu in the menu bar. When you logged out, the ‘Login’ screen is displayed, allowing you to re-login, if desired.
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MP252 Multimedia Home Gateway  5. Viewing a Graphical Display of the MP252 Network Version 3.4.0  55  June 2011 5  Viewing a Graphical Display of the MP252 Network The Web interface allows you to view a graphical display of the network elements connected to MP252. This is displayed in the ‘Map View’ screen, accessed by clicking the Home menu in the menu bar.  You can click a displayed network element icon to access the relevant screen for configuring the element. The figure below displays an example of a network map for a deployed MP252:
MP252 Multimedia Home Gateway  56  Document #: LTRT-23504   User's Manual  Figure 5-1: Map View Screen (Example)
MP252 Multimedia Home Gateway  5. Viewing a Graphical Display of the MP252 Network Version 3.4.0  57  June 2011 The table below describes the possible icons that can be displayed in the ‘Map View’ screen: Table 5-1: Map View Icon Description Icon  Description  Depicts the Internet connection (e.g., WAN Ethernet). Click this icon to open the 'Quick Setup' screen (see Section 7.1 on page 63).  Depicts the firewall. The height of the wall (yellow "bricks") corresponds to the security level (Minimum, Typical or Maximum). Click this icon to open the ‘General Tab’ screen (see Section 14.1 on page 226).  Depicts MP252 and displays the currently software version. Click this icon to open the 'Quick Setup' screen (see Section 7.1 on page 63).  Depicts an analog telephone connected to MP252. Click this icon to open the ‘Extension Settings’ screen (see Section 8.7 on page 102).  Depicts a DECT handset registered to the MP252. Click this icon to open the ‘Extension Settings’ screen (see Section 8.7 on page 102).  Depicts a computer (host) in the MP252 network. Each computer connected to the network appears below the network symbol of the network through which it is connected. This host is either a DHCP client that has received an IP lease from MP252, or a host with a static IP address, auto-detected by MP252.  Click this icon to open the ‘Host Information’ screen, displaying network information of the host. Note: MP252 recognizes a physically connected host and displays it in the Network Map only after network activity from that host has been detected (e.g. trying to browse to the Web management or to surf the Internet).   Depicts a computer connected to the Internet through the MP252 Wi-Fi network.  Click this icon to open the ‘Host Information’ screen, displaying network information of the host.  Depicts a host whose DHCP lease has expired and not renewed. The DHCP lease is renewed automatically, unless the host is no longer physically connected to MP252. This icon also depicts a static IP host that has no network activity.  Depicts a file server (hard drive) that is connected to MP252 (typically through the USB port). Click this icon to view the file server configuration.  Depicts a printer that is connected to MP252 and is shared by network users. Click this icon to view the printer's settings.  Depicts a USB driver.
MP252 Multimedia Home Gateway  58  Document #: LTRT-23504   User's Manual  Icon  Description  Depicts a USB disk-on-key that is connected to MP252.  Depicts a disconnected device.
MP252 Multimedia Home Gateway  6. Configuring Computers for Connecting to the MP252 Network Version 3.4.0  59  June 2011 6  Configuring Computers for Connecting to the MP252 Network This chapter describes how to configure computers to connect to the MP252 network, and includes the following main areas:  Connecting wired computers – see Section 6.1 on page 59  Connecting wireless network computers – see Section 6.2 on page 61 6.1  Wired Computers This  section  describes  how  to  configure  computers  that  connect  to  the  MP252  network through a LAN cable (i.e., wired).  You can configure the network interface of the computer using one of the following methods:  Statically define an IP address and DNS address  Automatically obtain an IP address using the MP252 embedded DHCP server  This section describes how to configure the computers network for the following operating systems (OS):  Windows XP – see Section 0 on page 59  Linux – see Section 6.1.2 on page 60    Notes:   • It is recommended to set the computers to automatically obtain their IP addresses (from a DHCP server). • Refer to the Quick Installation Guide for instructions relating to installation on a Windows™ operating system.   6.1.1  Configuring Computers Running on Windows XP The procedure below describes how to configure a computer running on Windows XP OS to automatically obtain its IP address (from a DHCP server, for example, MP252).   Note: For computers running Windows, the setup procedure is generally unnecessary as Windows' default network settings are to obtain an IP address automatically. However,  it  is  recommended  to  follow  the  setup  procedure  to  verify  that  all communication parameters  are  valid  and that  the  physical  cable connections are correct.   To configure a computer running Windows XP for dynamic IP addressing: 1.  Access 'Network Connections' from the Control Panel. 2.  Right-click the Ethernet connection icon, and then choose Properties. 3.  Under  the  General  tab,  select  the  'Internet  Protocol  (TCP/IP)'  component,  and  then click  the  Properties  button;  the  'Internet  Protocol  (TCP/IP)  Properties’  dialog  box  is displayed.
MP252 Multimedia Home Gateway  60  Document #: LTRT-23504   User's Manual  Figure 6-1: Internet Protocol (TCP/IP) Properties Dialog Box  4.  Select the Obtain an IP address automatically option. 5.  Select the Obtain DNS server address automatically option. 6.  Click OK to save the settings.  6.1.2  Configuring Computers Running on Linux The  procedure  below  describes  how  to  configure  a  computer  running  on  Linux  OS  to automatically obtain its IP address (from a DHCP server, for example, MP252).  To configure a computer running Linux for dynamic IP addressing: 1.  Log in to the system as a super-user, by entering the following command: su 2.  View the network devices and allocated IP's, by typing the following command: ifconfig 3.  At the prompt, type the following command: pump -i <dev> Where <dev> is the network device name. 4.  View the new allocated IP address, by typing the following command: ifconfig 5.  Make sure that no firewall is active on the device <dev>.
MP252 Multimedia Home Gateway  6. Configuring Computers for Connecting to the MP252 Network Version 3.4.0  61  June 2011 6.2  Connecting PC to MP252 Wireless Networks This  section  describes  how  to  configure  the  LAN  computers  to  connect  to  the  MP252 wireless  network.  If  your  computer  has  wireless  capabilities,  Windows  automatically recognizes the MP252 wireless network and creates a wireless connection.    Notes:   • To configure the MP252 LAN wireless connection, see Section 12.2.1 on page 151. • This section is based on computers running Microsoft Windows XP Professional.   To configure a computer to connect to MP252 wireless network: 1.  From  your  Windows  Start  menu,  point  to  Settings,  Control  Panel,  Network Connections,  and then choose Wireless  Connection; Windows starts enabling the wireless connection. 2.  On the Windows taskbar, right-click the Wireless Network Connection icon, and then choose View Available Wireless Connections; Figure 6-2: Available Wireless Networks  3.  Double-click  the  MP252  wireless  network  name  (i.e.,  "MP252");  your  computer establishes a wireless connection with MP252, indicated by the display of "Connected".
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MP252 Multimedia Home Gateway  7. Connecting MP252 to the Internet Version 3.4.0  63  June 2011    7  Connecting MP252 to the Internet This section describes how to configure MP252 for connecting it to the Internet (WAN). You can connect MP252 to the Internet using one of the following methods:  Configuring MP252 through the Web interface – see Section 7.1 on page 63  Using the MP252 Automatic Internet Dialer Detection feature – see Section 7.2 on page 72   Notes:   • MP252 automatically detects the physical WAN type (i.e., Ethernet or ADSL). To change the WAN type, you must restore MP252 to factory settings (see Section 18.8). • When connected to ADSL, the LAN4/WAN Ethernet port can be used for Ethernet LAN interface.  • When connected to an external modem through the Ethernet LAN4/WAN port and MP252 obtains an IP address, the ADSL interface is disabled. • If the Automatic Dialer feature is shipped preconfigured (i.e., enabled), then MP252 automatically detects the Internet dialer type and therefore, Internet connection configuration is unnecessary. However, it is recommended to manually configure the Internet connection after the Automatic Dialer process has completed (successfully or not). For more information on the Automatic Dialer feature, see Section 7.2 on page 72.  7.1  Quickly Setting up an Internet Connection in the Web Interface You  can  quickly  and  easily  set  up  a  basic  Internet  connection  using  the Web  interface’s 'Quick Setup' screen (as shown in Figure 7-1). This screen is displayed when you log in to the Web interface (or you can click the Quick Setup menu from the menu bar).   Notes:   • Before configuring the MP252 Internet connection, ensure that you have obtained relevant technical information on the Internet connection type from your Internet Telephony Service Provider (ITSP). For example, whether you are connected to the Internet using a static or dynamic IP address, or what protocols such as PPTP or PPPoE are used to communicate over the Internet. • For advanced configuration of the WAN network, use the Network Connections menu, as described in Section 12.1 on page 131. • The ‘Email Address’ field in the ‘Quick Setup’ screen defines the administrator's e-mail. System alerts and notifications are sent to this address (typically, to the telephony carrier technicians). It is recommended that only the administrator modify it.
MP252 Multimedia Home Gateway  64  Document #: LTRT-23504   User's Manual  Figure 7-1: Quick Setup Screen  You can configure one of two main Internet connection types:  WAN Ethernet – see Section 7.1.1 on page 64  WAN DSL – see Section 7.1.2 on page 68  7.1.1  WAN Ethernet  MP252 supports the following WAN Ethernet connection types:  Manual IP address  Automatic IP address  Point-to-Point Protocol over Ethernet (PPPoE)  Point-to-Point Tunneling Protocol (PPTP)  Layer 2 Tunneling Protocol (L2TP)
MP252 Multimedia Home Gateway  7. Connecting MP252 to the Internet Version 3.4.0  65  June 2011   Notes:   • Automatic IP address is the default connection type. • If you do not need an Internet (WAN Ethernet) connection, then in the ‘Quick Setup’ screen, from the ‘Connection Type’ drop-down list, select No Internet Connection .  7.1.1.1  Manual IP Address Ethernet Connection The procedure below describes how to connect to the Internet using a manually defined IP address.  To configure a manual IP address connection: 1.  Under  the  WAN  Ethernet  group,  from  the  'Connection  Type'  drop-down  list,  select 'Manual IP Address Ethernet Connection'. Figure 7-2: Manual IP Address WAN Ethernet Connection  2.  According to your ISP's instructions, specify the following parameters: • IP address • Subnet mask • Default Gateway • Primary DNS server • Secondary DNS server 7.1.1.2  Automatic IP Address Ethernet Connection The procedure below describes how to connect to the Internet by automatically obtaining a WAN IP address and DNS IP address from a DHCP server on the WAN. This method is the default connection type.   To configure automatic IP address connection:  Under the WAN Ethernet group, from the 'Connection Type' drop-down list, select
MP252 Multimedia Home Gateway  66  Document #: LTRT-23504   User's Manual  ‘Automatic IP Address Ethernet Connection'. Figure 7-3: Automatic IP Address WAN Ethernet Connection   7.1.1.3  PPPoE The procedure below describes how to connect to the Internet by PPPoE  To configure PPPoE connection: 1.  Under  the  WAN  Ethernet  group,  from  the  'Connection  Type'  drop-down  list,  select 'Point-to-Point Protocol over Ethernet (PPPoE)'. Figure 7-4: PPPoE WAN Ethernet Connection  2.  Configure the PPPoE login username and password (provided by your ITSP).  7.1.1.4  PPTP The procedure below describes how to connect to the Internet by PPTP.  To configure PPTP connection:
MP252 Multimedia Home Gateway  7. Connecting MP252 to the Internet Version 3.4.0  67  June 2011 1.  Under  the  WAN  Ethernet  group,  from  the  'Connection  Type'  drop-down  list,  select 'Point-to-Point Tunneling Protocol (PPTP)'. Figure 7-5: PPTP WAN Ethernet Connection  2.  Configure the following (provided by your ITSP): • PPTP Server Host Name or IP Address • Login user name • Login password 3.  From  the  ‘Internet  Protocol’  drop-down  lists,  select  the  method  for  assigning  an  IP address (provided by your ITSP).  7.1.1.5  L2TP The procedure below describes how to connect to the Internet by L2TP.  To configure L2TP connection: 1.  Under  the  WAN  Ethernet  group,  from  the  'Connection  Type'  drop-down  list,  select 'Layer 2 Tunneling Protocol (L2TP)'. Figure 7-6: L2TP WAN Ethernet Connection
MP252 Multimedia Home Gateway  68  Document #: LTRT-23504   User's Manual  2.  Configure the following (provided by your ITSP): • L2TP Server Host Name or IP Address • Login user name • Login password 3.  From  the  ‘Internet  Protocol’  drop-down  lists,  select  the  method  for  assigning  an  IP address (provided by your ITSP).  7.1.2  WAN DSL MP252 supports the following WAN DSL connection types:  PPPoE  Point-to-Point Protocol over ATM (PPPoA)  Routed Ethernet Connection over ATM (Routed ETHoA)  LAN-WAN Bridged Ethernet Connection over ATM (Bridged ETHoA)  Classical IP over ATM (CLIP)   Note:  If you do not need an Internet (WAN DSL) connection, then in the ‘Quick Setup’ screen,  from  the  ‘Connection  Type’  drop-down  list,  select  No  Internet Connection .  7.1.2.1  PPPoE The procedure below describes how to connect to the Internet by PPPoE.  To configure PPPoE connection: 1.  Under  the  WAN  DSL  group,  from  the  'Connection  Type'  drop-down  list,  select 'Point-to-Point Protocol over Ethernet (PPPoE)'. Figure 7-7: PPPoE WAN DSL Internet Connection   2.  Configure the following (provided by your ITSP):
MP252 Multimedia Home Gateway  7. Connecting MP252 to the Internet Version 3.4.0  69  June 2011 • Login user name • Login password 3.  By default, the 'Automatic PVC Scan' check box is selected, which means that MP252 configures  the  VPI,  VCI,  and  encapsulation  parameters  automatically.  To  configure these  parameters  manually,  clear  this  check  box  (for  more  information,  see  Section 12.1.1.1 on page 133).  7.1.2.2  PPPoA The procedure below describes how to connect to the Internet by PPPoA.  To configure PPPoA connection: 1.  Under  the  WAN  DSL  group,  from  the  'Connection  Type'  drop-down  list,  select 'Point-to-Point Protocol over ATM (PPPoA)'. Figure 7-8: PPPoA WAN DSL Internet Connection   2.  Configure the following (provided by your ITSP): • Login user name • Login password 3.  By default, the 'Automatic PVC Scan' check box is selected, which means that MP252 configures  the  VPI,  VCI,  and  encapsulation  parameters  automatically.  To  configure these  parameters  manually,  clear  this  check  box  (for  more  information,  see  Section 12.1.1.1 on page 133).  7.1.2.3  Routed ETHoA The procedure below describes how to connect to the Internet by ETHoA.  To configure routed ETHoA connection: 1.  Under the WAN DSL group, from the 'Connection Type' drop-down list, select ‘Routed Ethernet Connection over ATM (Routed ETHoA)'. Figure 7-9: Routed ETHoA WAN DSL Internet Connection
MP252 Multimedia Home Gateway  70  Document #: LTRT-23504   User's Manual   2.  By default, the 'Automatic PVC Scan' check box is selected, which means that MP252 configures  the  VPI,  VCI,  and  encapsulation  parameters  automatically.  To  configure these  parameters  manually,  clear  this  check  box  (for  more  information,  see  Section 12.1.1.1 on page 133).  7.1.2.4  Bridged ETHoA The procedure below describes how to connect to the Internet by bridged ETHoA.  To configure bridged ETHoA connection: 1.  Under  the  WAN  DSL  group,  from  the  'Connection  Type'  drop-down  list,  select ‘LAN-WAN Bridged Ethernet Connection over ATM (Bridged ETHoA)'. Figure 7-10: Bridged ETHoA WAN DSL Internet Connection   2.  By default, the 'Automatic PVC Scan' check box is selected, which means that MP252 configures  the  VPI,  VCI,  and  encapsulation  parameters  automatically.  To  configure these  parameters  manually,  clear  this  check  box  (for  more  information,  see  Section 12.1.1.1 on page 133). 7.1.2.5  CLIP The procedure below describes how to connect to the Internet by CLIP.
MP252 Multimedia Home Gateway  7. Connecting MP252 to the Internet Version 3.4.0  71  June 2011  To configure CLIP connection: 1.  Under the WAN DSL group, from the 'Connection Type' drop-down list, select ‘Classical IP over ATM (CLIP)'. Figure 7-11: CLIP WAN DSL Internet Connection   2.  Configure the following (provided by your ITSP): • IP Address • Subnet Mask • Default Gateway IP address • Primary DNS Server IP address • Secondary DNS Server IP address • VPI • VCI
MP252 Multimedia Home Gateway  72  Document #: LTRT-23504   User's Manual  7.2  Using the Automatic Dialer for Internet Connection The Automatic Dialer feature allows the service provider to use one type of pre-configured MP252 for all the following Internet connection types:  WAN Ethernet (DHCP, LT2P or PPPoE)  WAN ADSL (PPPoE) In  the  Private  Labeling  process,  the  factory  setting  is  burned  with  the  parameters  of  the different dialers. When powered-up at the customer site, MP252 first detects the physical WAN type (ADSL  or Ethernet)  and then attempts  the relevant WAN connection methods. The indication for a successful result is connection (i.e., receipt of an IP address) and a ping test.  This section describes the recommended process for using the Automatic Dialer.   Notes:   • If the Automatic Dialer feature is shipped pre-configured (i.e., enabled), then MP252 automatically detects the Internet dialer type and therefore, configuration of the Internet connection is not necessary. However, it is recommended to manually configure the Internet connection after the Automatic Dialer process has completed (successfully or not).  • If you manually configure the Internet connection in the Web interface, the Automatic Dialer feature becomes disabled.  7.2.1  Recommended Configuration The recommended factory settings for the Automatic Dialer feature are shown below:  (auto_dialer_detect     (enabled(1))     (done(0))     (connection_type       (0         (type(DHCP))         (enabled(1))         (max_dialer_conn_time(20))       )       (1         (type(L2TP))         (enabled(1))         (server_ip(<Server Name or IP>))         (username(<User Name>))         (password(<Password>))         (max_dialer_conn_time(120))       )       (2         (type(PPPOE))
MP252 Multimedia Home Gateway  7. Connecting MP252 to the Internet Version 3.4.0  73  June 2011         (enabled(1))         (username(<User Name>))         (password(<Password>))         (max_dialer_conn_time(120))       )     )     (auto_detect_retries(15))     (ping_retries(4))     (ping_retries_timeout(2))     (ADSL         (vpi(8))         (vci(48))         (encap(LLC))     )   )   (system     (network       (internet_url(<Address or Domain Name for Ping Test>))     )   )   Note:  If the ADSL section in the factory settings is omitted, the MP252 performs an automatic PVC scan. When configuring manual PVC values (VPI and VCI), the connection is faster.  .
MP252 Multimedia Home Gateway  74  Document #: LTRT-23504   User's Manual  7.2.2  Setting up and Starting the Automatic Dialer The procedure below describes how to setup and start the Automatic Dialer feature.  To setup and start Automatic Dialer: 1.  Power off the MP252. 2.  Connect the ADSL or Ethernet cables.   Note:  If  you  are  using  an  ADSL  connection,  DO  NOT  connect  any  cable  to  the WAN/LAN4 port. Connecting this port causes the Automatic Dialer to fail.  3.  Power on the MP252; the Automatic Dialer begins its operation and you can view the progress status by checking the MP252 LEDs (see Section 3.1.1.2.2 on page 30).   Notes:   • If the connection is ADSL, the Automatic Dialer usually connects in the first iteration (after less than 10 seconds, when configuring manual PVC). In some cases, the Automatic Dialer may connect in the second iteration (up to 4 minutes). • If the connection is WAN Ethernet: - For DHCP, the connection is fast. - For L2TP, the connection takes up to ~2 minutes. - For PPPoE, the connection can take up to ~4 minutes.
MP252 Multimedia Home Gateway  7. Connecting MP252 to the Internet Version 3.4.0  75  June 2011 7.2.3  Quitting Automatic Dialer for Manual Configuration If, for any reason, you need to manually configure the Internet connection, you first need to stop the Automatic Dialer feature and then manually configure the connection, as described below,  To quit Automatic Dialer and manually configure the Internet connection: 1.  Power off the MP252. 2.  Disconnect the WAN ADSL or Ethernet cable. 3.  Power on the MP252. 4.  Wait for the Automatic Dialer process to end (i.e., the Broadband LED stops blinking).  5.  Log in to the MP252 Web interface. 6.  Manually configure the Internet connection using the 'Quick Setup' screen (see Section 7.1 on page 63). This ensures that the Automatic Dialer feature does not re-activate itself after the MP252 resets. Once the MP252 successfully connects to the Internet, it downloads its configuration file from the server.    Note:  The  configuration  file  must  include  the  following  parameter  to  indicate  that Automatic Dialer is no longer needed: auto_dialer_detect/done = 1.
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Version 3.4.0  77  July 2011 MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters  8  Configuring VoIP Parameters The  VoIP  parameters are  mainly configured  in  the  'Voice  over  IP'  screen.  This screen  is accessed  by clicking the  Voice  over  IP  menu  in  the  side  menu  bar.  The ‘Voice  over IP' screen provides tabs for configuring the following:  Signaling protocol (i.e., Session Initiation Protocol / SIP) – see Section 8.1 on page 77  Dialing – see Section 8.2 on page 85  Media streaming – see Section 8.3 on page 90  Voice and fax – see Section 8.4 on page 91  Supplementary services – see Section 8.5 on page 95  Line settings – see Section 8.6 on page 98  Line extensions – see Section 8.7 on page 101  Speed dials – see Section 8.9 on page 104  Telephone interfaces – see Section 8.9 on page 104  In addition to the above, you can select the region in which your MP252 is located so that your analog telephone complies with the line standards (e.g., line impedance) of the area. For more information, see Section 8.10 on page 105.   Notes:   • By default, the  Voice over IP  screens initially display only basic parameters. To view all the parameters, click the Advanced button in the required screen. • Once you have configured the VoIP parameters, you can start using your analog telephones, as described in Chapter 10 on page 109. For using your DECT handset(s), see Part II.
MP252 Multimedia Home Gateway  78  Document #: LTRT-23504   User's Manual  8.1  Configuring the SIP Signaling Protocol The procedure below describes how to configure the SIP parameters.  To configure SIP parameters: 1.  From the menu bar, click the Voice Over IP menu; the following screen appears:
MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters Version 3.4.0  79  June 2011 Figure 8-1: Signaling Protocol Tab Screen  2.  Configure the parameters, as required. For a description of the parameters displayed on this screen, see Table 8-1. 3.  Click OK to save your settings. Table 8-1: Signaling Protocol Tab Parameters Description
MP252 Multimedia Home Gateway  80  Document #: LTRT-23504   User's Manual  Parameter  Description Signaling Protocol Group Signaling Protocol  (Read-only field.) Displays the signaling protocol running on the device.Note: Currently, only SIP is supported. SIP Transport Protocol Defines the SIP transport type - UDP (default), TCP, or TLS. Note: This parameter appears only in 'Advanced' mode. Local SIP Port Defines the UDP / TCP port on which the SIP stack listens. The default port is 5060. Note: This parameter appears only in 'Advanced' mode. Local SIP TLS Port Defines the TLS port on which the SIP stack listens. The default port is 5060. Note: This parameter appears only if you select ‘TLS’ as the SIP transport protocol. Gateway Name - User Domain Defines the MP252 domain name which is sent in the SIP From header of outgoing INVITE messages. Note: This parameter appears only in 'Advanced' mode. Enable PRACK  When enabled, MP252 replies with a PRACK message upon receipt of a reliable provisional response. MP252 does not initiate reliable provisional responses. Note: This parameter appears only in 'Advanced' mode. Include ptime in SDP  When enabled, MP252 adds the ptime field to the SDP message body.Note: This parameter appears only in 'Advanced' mode. Enable Advanced DNS   Advanced DNS Type   Note:  This parameter is available only if the ‘Enable Advanced DNS’ check box is selected. Enable rport  When enabled, MP252 adds the rport parameter to the relevant SIP message fields. Note: This parameter appears only in 'Advanced' mode. Connect media on 180  When enabled, media is connected upon receipt of SIP 180, 183, or 200 messages. When this parameter is disabled, media is connected upon receipt of 183 and 200 messages only. Note: This parameter appears only in 'Advanced' mode. Enable Keep Alive When enabled, a keep-alive notification is sent every user-defined interval to the SIP registrar server. Note: This parameter appears only in 'Advanced' mode. Keep-Alive Type The type of keep-alive mechanism sent to the SIP registrar: • Using SIP OPTIONS: sends SIP OPTIONS messages • Using an Empty UDP packet: sends empty UDP packets Note: This parameter is available only if the ‘Enable Keep Alive’ check box is selected. Keep-Alive Period Defines the periodic interval for keep-alive messages. Note:  This parameter is available only if the ‘Enable Keep Alive’ check box is selected.
MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters Version 3.4.0  81  June 2011 Parameter  Description SIP Proxy and Registrar Use SIP Proxy When checked, outgoing calls are routed to the configured SIP proxy. If the 'Use SIP Proxy IP and Port for Registration' check box is also selected, the configured SIP proxy is also used as the registrar, allowing incoming calls. Host Name or Address  Defines the IP address or host name of the SIP proxy. Note: This parameter is available only if the ‘Use SIP Proxy’ check box is selected. Proxy Port  Defines the port (UDP, TCP, or TLS) of the SIP proxy. Note: This parameter is available only if the ‘Use SIP Proxy’ check box is selected. Maximum Number of Authentication Retries Defines how many times authenticated register messages are re-sent if SIP 401 or 407 responses with a different “nonce” are received. Note: This parameter is available only if the ‘Use SIP Proxy’ check box is selected. Use SIP Proxy IP and Port for Registration When selected (default), the SIP proxy’s IP address and port is also used for registration. When selected, there is no need to configure the address / port of the registrar (only the ‘Register Expires’ and ‘Register Expires Failed’ parameters – described later).  Note: This parameter is available only if the ‘Use SIP Proxy’ check box is selected. Sip Security  MP252's firewall can be configured to block incoming packets that have the SIP signaling port as their destination. You can configure up to two SIP entities (for example, the SIP Proxy or an SBC), which are not blocked by the firewall.  The default value is ‘Allow all SIP traffic’. Note: This parameter is available only if the ‘Use SIP Proxy’ check box is selected. Address Type  Selects the address type of the additional SIP entity - IP address or host name. Note: This parameter is available only if the 'Sip Security' field is set to ‘Allow SIP traffic from Proxy and Additional SIP Entity’. SIP Entity Address  Defines the address or host name (depending on the settings of the ‘Address Type’ field) of the additional SIP entity. Note: This parameter is available only if the 'Sip Security' field is set to ‘Allow SIP traffic from Proxy and Additional SIP Entity’. Use Redundant Proxy  Enables the use of a redundant proxy. Note: This parameter is available only if the 'Use SIP Proxy IP and Port for Registration' check box is selected. Redundant Proxy Address Defines the IP address of the redundant proxy. Note: This parameter is available only if the 'Use Redundant Proxy’ check box is selected. Redundant Proxy Port  Defines the port of the redundant proxy. Note: This parameter is available only if the 'Use Redundant Proxy’ check box is selected.
MP252 Multimedia Home Gateway  82  Document #: LTRT-23504   User's Manual  Parameter  Description Redundant Proxy Keep Alive Period Defines the interval between keep-alive packets (SIP OPTIONS) which are used by the proxy redundancy mechanism to check the connection status. Note: This parameter is available only if the 'Use Redundant Proxy’ check box is selected. Switch back to Primary SIP proxy when available When selected, MP252 switches back to the primary proxy server when communication with it returns. Use SIP Registrar  When selected, enables the use of a separate SIP registrar server. Registrar Address  Defines the IP address or host name of the registrar server. Note: This parameter is available only if the 'Use SIP Registrar’ check box is selected. Registrar Port  Defines the port (UDP or TCP) of the registrar server. Note: This parameter is available only if the 'Use SIP Registrar’ check box is selected. Register Expires Defines the registration timeout, in seconds. Note: This parameter is available only if the 'Use SIP Registrar’ or ‘Use SIP Proxy IP and Port for Registration’ check box is selected. Register Failed Expires  Defines the timeout between registration attempts in case of a registration failure (e.g. due to a network problem). Note: This parameter is available only if the 'Use SIP Registrar’ or ‘Use SIP Proxy IP and Port for Registration’ check box is selected. Use SIP Outbound Proxy  When selected (default), an outbound SIP proxy is used (all SIP messages are sent to this server as the first hop). Note: This parameter appears only in 'Advanced' mode. Outbound Proxy IP Defines the IP address of the outbound Proxy. If this parameter is set, all outgoing messages (including registration messages) are sent to this Proxy according to the Stack behavior. Note: This parameter is available only if 'Use SIP Outbound Proxy' is selected. Outbound Proxy Port  The Port on which the outbound Proxy listens. Note: This parameter is available only if 'Use SIP Outbound Proxy' is selected. SIP Timers Note: This group appears only in 'Advanced' mode. Retransmission Timer T1  The SIP T1 retransmission timer according to RFC 3261 Retransmission Timer T2  The SIP T2 retransmission timer according to RFC 3261 Retransmission Timer T4  The SIP T4 retransmission timer according to RFC 3261 INVITE Timer  The SIP INVITE timer according to RFC 3261 NAT Traversal Enable STUN When selected, the SIP STUN Manager is enabled. The SIP STUN Manager resolves private addresses to public addresses. Note: This parameter appears only in 'Advanced' mode.
MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters Version 3.4.0  83  June 2011 Parameter  Description STUN Server Address  Defines the IP address of the STUN server used to resolve private addresses. Note: This parameter is available only if 'Enable STUN' is selected. STUN Server Port  Defines the port of the STUN server. Note: This parameter is available only if 'Enable STUN' is selected. Subnet Mask  Defines the subnet mask address of the STUN server used to resolve private addresses. Note: This parameter is available only if 'Enable STUN' is selected.
MP252 Multimedia Home Gateway  84  Document #: LTRT-23504   User's Manual  8.1.1  Configuring Proxy Redundancy The  Redundant  Proxy  feature  allows  the  configuration  of  a  backup  SIP  proxy  server  to increase  Quality  of  Service  (QoS).  Once  this  feature  is  enabled,  MP252  identifies  cases where  the  primary  proxy  does  not  respond  to  SIP  signaling  messages.  In  these  cases, MP252  registers  to  the  redundant  proxy  and  seamlessly  continues  normal  functionality, without any noticeable connectivity failure or malfunction with the primary proxy. The Redundant Proxy feature includes two operational modes:  Asymmetric mode: This mode assigns the primary proxy a higher priority for registration over the redundant proxy. Once MP252 is registered to the primary proxy, it sends keep-alive messages (using SIP OPTIONS messages) to the primary proxy. If the primary proxy does not respond, MP252 registers to the redundant proxy, but continues sending keep-alive messages to the primary proxy. If the primary proxy responds to these keep-alive messages, MP252 re-registers to the primary proxy.  Symmetric mode: In this mode, both proxies are assigned the same priority for registration. Once MP252 is registered to a proxy (primary or redundant), it sends keep-alive messages to this proxy. MP252 switches proxies only once the proxy to which it has registered does not respond.  In both modes, the following applies:  If MP252 is not registered (i.e., if the proxy server - redundant or primary - to which MP252 currently tries to register does not respond), MP252 attempts to register to an alternative proxy. These attempts continue until MP252 successfully registers.  If this feature is enabled and you reboot MP252, it registers to the last proxy to which it was trying to register (not necessarily to the primary proxy).  To configure proxy redundancy: 1.  From the menu bar, click the Voice Over IP menu; the Signaling Protocol tab screen appears. 2.  Define a primary proxy server (under the SIP Proxy and Registrar group): a.  Select the ‘Use SIP Proxy’ check box. b.  In the 'Host Name or Address' field, enter the primary proxy's IP address. c.  In the 'Proxy Port' field, enter the primary proxy's port number. 3.  Define a redundancy proxy server (under the SIP Proxy and Registrar group): a.  Select one of the following check boxes: 'Use SIP Registrar' or 'Use SIP Proxy IP and Port for Registration'. a.  Select the 'Use Redundant Proxy' check box.  b.  In the 'Redundant Proxy Address' field, enter the redundant proxy's IP address or DNS name. c.  In the 'Redundant Proxy Port' field, enter the redundant proxy's port number.
MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters Version 3.4.0  85  June 2011 d.  In the 'Redundant Proxy Keep Alive Period' field, enter the rate (in seconds) of the keep-alive messages for sending to the proxy. The valid range is 10 to 86,400 seconds (i.e., 24 hours). The default value is 60 sec. e.  To toggle between Symmetric and Asymmetric modes, use the 'Switch back to Primary SIP proxy when available' check box. ♦ Asymmetric mode - select the check box (i.e., mark it) ♦ Symmetric mode - clear the check box Figure 8-2: Configuring Proxy Redundancy  4.  Click OK to save your settings.  2-a 3-a 2-b 2-c 3-a 3-b 3-c 3-d 3-e
MP252 Multimedia Home Gateway  86  Document #: LTRT-23504   User's Manual  8.2  Configuring Dialing Parameters The procedure below describes how to configure the dialing parameters.  To configure dialing parameters: 1.  In the 'Voice Over IP' screen, click the Dialing tab; the following screen appears.  Figure 8-3: Dialing Tab Screen  2.  Configure the parameters, as required. For a description of the parameters displayed on this screen, see Table 8-2. 3.  Click OK to save your settings.
MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters Version 3.4.0  87  June 2011 Table 8-2: Dialing Tab Parameters Description Parameter  Description Dialing Parameters Dialing Timeout Defines the duration (in seconds) of allowed inactivity between dialed digits. When you work with a proxy, the number you have dialed before the dialing process has timed out is sent to the proxy as the user ID to be called. This is useful for calling remote parties without creating a speed dial entry (assuming the remote party is registered with the proxy). Phone Number Size  Defines the maximum length of shortcut numbers that you can enter and the maximum number of digits that you can dial. Enabled dialing complete key When selected (default), you can define a key that when pressed forces MP252 to make a call to the dialed digits even if there is no match in the dial plan or digit map. The key is defined in the ‘Complete dialing key’ field, which appears when this parameter is selected.  Note: This parameter appears only in 'Advanced' mode. Complete dialing key  Defines the key that when pressed forces MP252 to make a call to the dialed digits even if there is no match in the dial plan or digit map. The default value is the pound (#) key. Note: This parameter is available only if the ‘Enabled dialing complete key’ is selected. Dial Tone Timeout Defines the duration of the dial tone (in seconds). If the limit is exceeded, the dial tone stops and you a reorder tone is played. Reorder Tone Timeout Defines the duration (in seconds) of the reorder tone. The reorder tone is played, for example, when MP252 receives a SIP 486 response. If the limit is exceeded, the reorder tone stops and a howler tone is played. Note: This parameter appears only in 'Advanced' mode. Unanswered call timeout Defines the timeout before MP252 automatically sends a SIP CANCEL message. When MP252 makes a call and the other side doesn’t answer, MP252 sends a CANCEL message after this timeout. Note: This parameter appears only in 'Advanced' mode. Howler Tone Timeout  Defines the duration (in seconds) of the howler tone. If the limit is exceeded, the howler tone stops playing. The howler tone informs a user that the user's phone has been left in an off-hook state. Note: This parameter appears only in 'Advanced' mode. Flash min  Defines the duration (in ms) after which you can begin to perform a flash hook. Flash max  Defines the maximum duration (in ms) that the flash hook button can be pressed, after which the call is disconnected. Enable Re-Answer Timeout When selected, the ‘Re-Answer Timeout’ field appears, allowing you to define the timeout after on-hooking an active call and then off-hooking it again. Once this time expires and the phone has not been off-hooked again, the call is disconnected. Send DTMF Out-Of- Band Defines how the DTMF tones are sent (‘Inband’, ‘RFC2833’, or ‘Via SIP’). DTMFs are the tones generated by your telephone's keypad. Note: This parameter appears only in 'Advanced' mode.
MP252 Multimedia Home Gateway  88  Document #: LTRT-23504   User's Manual  Parameter  Description Digit Map  Defines formats (or patterns) for the dialed number. A match to one of the defined patterns terminates the dialed number. For an explanation on digit map syntax, see Section 8.2.1 on page 88. Note: This parameter appears only in 'Advanced' mode. Dial Plan  Defines patterns to translate to specific SIP destination addresses. For dial plan syntax rules for patterns entered to the left of the '=' sign, see Section 8.2.1 on page 88. Note: This parameter appears only in 'Advanced' mode. Key Sequence Flash keys sequence style Defines the key sequence with the flash button:  ‘Flash only’ (default) = uses only the phone's Flash button. There are three scenarios:   During an existing call, if the user presses Flash, the call is put on hold, a dial tone is heard and the user is able to initiate a second call. Once the second call is established, on-hooking transfers the first (held) call to the second call.   During an existing call, if the user presses Flash, the call is put on hold and a dial tone is heard. The user can initiate a second call and establish a 3-way conference by again pressing Flash after the second call is initiated.   During an existing call, if a call comes in (call waiting), pressing Flash puts the active call on hold and answers the waiting call; pressing Flash again toggles between these two calls.  ‘Flash + digits sequence’ = Flash button with a key sequence:  Flash + 1 holds a call or toggles between two existing calls.   Flash + 2 makes a call transfer.  Flash + 3 establishes a 3-way conference.  'Send Flash Hook Via SIP' = you can modify the SIP INFO message that is sent upon Flash. You can change the Content Type header field and Message Body field. Note: This parameter appears only in 'Advanced' mode. SIP INFO Header When the key sequence is set to 'Send Flash Hook Via SIP', you can modify the Content Type header field of the SIP INFO message.  For example: "application/broadsoft; version = 1.0" Note: This parameter appears only when the ‘Flash keys sequence style’ field is set to 'Send Flash Hook Via SIP'. SIP INFO Body When the key sequence is set to 'Send Flash Hook Via SIP', you can modify the Message Body field of the SIP INFO message.  For example: " event flashhook" Note: This parameter appears only when the ‘Flash keys sequence style’ field is set to 'Send Flash Hook Via SIP'.  8.2.1  Syntax for Digit Maps and Dial Plans Digit maps and dial plans are defined using special syntax rules, configured in the 'Dialing' screen (see Section 8.2 on page 85).  Digit Maps: A phone's digit map allows MP252 to know when an entered telephone number is complete and therefore, when it should initiate the call. If the phone digit map is defined incorrectly, MP252 might start to dial before the telephone user has entered
MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters Version 3.4.0  89  June 2011 all the required digits. A digit map is defined either by a (case insensitive) "string" or by a list of strings.  Each string in the list is an alternative numbering scheme, specified either as a set of digits or as an expression over which MP252 attempts to find a shortest possible match.  The syntax that can be used in each numbering scheme is described in the table below.  Dial Plans: A dial plan translates specific patterns into specific SIP destination addresses. For example, dial plan rule "4xxx=Line_\\\@10.1.2.3" sends a dialed number consisting of the digit “4” followed by any three digits to IP address 10.1.2.3. The syntax of the pattern on the left of the '=' sign is described in the table below. Table 8-3: Dial Plan (for Left of '=' Sign) and Digit Map Syntax Type  Syntax Digit  A digit from "0" to "9". DTMF  A digit, or one of the symbols "A", "B", "C", "D", "#", or "*".  Extensions may be defined. Wildcard  The symbol "x" which denotes any digit ("0" to "9"). Range  One or more DTMF symbols enclosed between square brackets ("[" and "]"). Sub-range  Two digits separated by a hyphen ("-") which matches any digit between and including the two. The subrange can only be used inside a range construct, i.e., between "[" and "]". Position A period (".") which matches an arbitrary number, including zero, of occurrences of the preceding construct.  For example: [2-9]11|0|100|101|011xxx.|9011xxx.|1[2-9]xxxxxxxxx|91[2-9]xxxxxxxxx|9[2-9]xxxxxx|*xx|[8]xxxx|[2-7]xxx  [2-9]11: 911 rule: 211, 311, 411, 511, 611, 711, 811, 911 are dialled immediately   0: Local operator rule   100: Auto-attendant default extension   101: Voicemail default extension   011xxx.: International rule without prefix   9011xxx.: International rule with prefix   1[2-9]xxxxxxxxx: LD rule without prefix   91[2-9]xxxxxxxxx: LD rule with prefix   9[2-9]xxxxxx: Local call with prefix   *xx: 2-digit star codes   [1-7]xx: A regular 3-digit extension that does not start with 9 or 8 is dialed immediately   [2-7]xx: A regular 3-digit extension that does not start with 9, 8, or 1 is dialed immediately   [2-7]xxx: A regular 4-digit extension that does not start with 9, 8, or 1 is dialed immediately   [8]xxx: A 3-digit extension prefixed with an 8 (routes calls directly to voicemail of extension xxx)    [8]xxxx: A-4 digit extension prefixed with an 8 (routes calls directly to voicemail of extension xxxx)
MP252 Multimedia Home Gateway  90  Document #: LTRT-23504   User's Manual  8.3  Configuring Media Streaming The procedure below describes how to configure the media streaming parameters.  To configure media streaming parameters:  In the 'Voice Over IP' screen, click the Media Streaming tab; following screen appears.  Figure 8-4: Media Streaming Tab Screen  4.  Configure the parameters, as required. For a description of the parameters displayed on this screen, see Table 8-4. 5.  Click OK to save your settings. Table 8-4: Media Streaming Tab Parameters Description Parameter  Description Media Streaming Parameters Local RTP Port Range - Contiguous Series of 8 Ports Starting From: Defines the port range for Real Time Protocol (RTP) voice transport. DTMF Relay RFC 2833 Payload Type  Defines the RTP payload type used for RFC 2833 DTMF relay packets. The range is 0-255. The default is 101. G.726/16 Payload Type Defines the RTP payload type used for 16 kbps G.726 packets. The range is 0-255. The default is 98.
MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters Version 3.4.0  91  June 2011 Parameter  Description Quality of Service Parameters Type of Service (Hex)  This is a part of the IP header that defines the type of routing service to be used to tag outgoing voice packets originated from MP252. It is used to inform routers along the way that this packet should get specific QoS. Leave this value as 0xb8 (default) if you are unfamiliar with the Differentiated Services IP protocol parameter. Codecs 1st - 6th Codec  Defines the voice codec. For more information, see 8.3.1 on page 91.   8.3.1  Configuring Codecs Codecs  define  the  method  of  relaying  voice  data.  Different  codecs  have  different characteristics, such as data compression and voice quality. For example, G.723 is a codec that uses compression, so it is good for use where bandwidth is limited but its voice quality is not as good compared to other codecs such as the G.711. 8.3.1.1  Supported Codecs To make a call, at least one codec must be enabled. Moreover, all codecs may be enabled for  best performance. When you start a  call to  a remote party, your available  codecs  are compared against the remote party's to determine the codec used. The priority by which the codecs  are  compared  is  according  to  their  order  of appearance  in  the  table  (descending order). To change the priorities, rearrange the codecs in the required order. If there is no codec that both parties have made available, the call attempt fails. Note that if more than  one codec is common to both  parties,  you  cannot force  which of the common codecs that were found are used by the remote party's client. If you do wish to force the use of a specific codec, leave only that codec checked. 8.3.1.2  Packetization Time The Packetization Time is the length of the digital voice segment that each packet holds. The default is 20 millisecond packets. Selecting 10 millisecond packets reduces the delay but increases the bandwidth consumption.  8.4  Configuring Voice and Fax The procedure below describes how to configure the voice and fax parameters.  To configure voice and fax parameters: 1.  In the 'Voice Over IP' screen, click the Voice and Fax tab; the following screen appears.  Figure 8-5: Voice and Fax Tab Screen
MP252 Multimedia Home Gateway  92  Document #: LTRT-23504   User's Manual   2.  Configure the parameters, as required. For a description of the parameters displayed on this screen, see Table 8-5. 3.  Click OK to save your settings.
MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters Version 3.4.0  93  June 2011 Table 8-5: Voice and Fax Tab Parameters Description Parameter  Description Gain Control Enable Automatic Gain Control Enables the Automatic Gain Control (AGC) mechanism. The AGC mechanism adjusts the level of the received signal to maintain a steady (configurable) volume level. Automatic Gain Control Direction Defines the AGC direction (local or remote user). Note: This parameter appears only if the ‘Enable Automatic Gain Control’ check box is selected. Target Energy  Defines the signal energy value (in dBm) that the AGC attempts to attain. The range is 0 to -63 dBm. The default value is -19 dBm. Note: This parameter appears only if the ‘Enable Automatic Gain Control’ check box is selected. Jitter Buffer Minimum Delay Defines the initial and minimal delay of the adaptive jitter buffer mechanism, which compensates for network problems. The value should be set according to the expected average jitter in the network (in milliseconds). The default is 35 msec. Optimization Factor  Defines the adaptation rate of the jitter buffer mechanism.  Higher values cause the jitter buffer to respond faster to increased network jitter. The default is 7. Silence Compression Enable Silence Compression Enables silence compression, which reduces the network bandwidth consumption. The default is disabled. Enable G.711/G.726 Comfort Noise Enables the Comfort Noise generation feature. When enabled and silence is detected, MP252 transmits a series of parameters called Silence Information Descriptor (SID), which are used to reproduce the local background noise at the remote (receiving) side. Note: This parameter appears only if the ‘Enable Silence Compression’ check box is selected. Echo Cancellation Enable Echo Cancellation Enables (default) echo cancellation (disabling echo cancellation should be done for testing purposes only).  Fax and Modem Settings Fax Transport Mode  Selects the way fax calls are handled:  Transparent = Fax is transferred in-band (like a voice call) - can be used if the codec is G.711  T.38 Relay = Fax is relayed to the remote side according to the T.38 standard  Voice Band Data = Switch to G.711 via SIP messaging  Bypass = An automatic switch to AudioCodes' proprietary payload type (102, 103). Max Rate Defines the maximum fax rate.   2.4 Kbps, 4.8 Kbps, 7.2 Kbps, 9.6 Kbps, 12 Kbps or 14.4 Kbps (default). Note: This parameter appears only if 'Fax Transport Mode' is set to ‘T.38 Relay’.
MP252 Multimedia Home Gateway  94  Document #: LTRT-23504   User's Manual  Parameter  Description Max Buffer Defines the maximum amount of T.38 data stored on the MP252. The valid range is 128 to 2048. The default is 1024. Note: This parameter appears only if 'Fax Transport Mode' is set to ‘T.38 Relay’. Max Datagram Defines the maximum total size of TCP/UDPTL packets that can be received at the remote gateway. The valid range is 160 to 1020. The default is 320. Note: This parameter appears only if 'Fax Transport Mode' is set to ‘T.38 Relay’. Image Data Redundancy Level Defines the level for output Image Data (2400…14400 bps).   0 = No redundancy  1 to 3 = Redundancy level Note: This parameter appears only if 'Fax Transport Mode' is set to ‘T.38 Relay’. T30 Control Data Redundancy Level Defines the redundancy level for output T.30 Control Data (300 bps).  0 = No redundancy  1 to 7 = Redundancy level Note: This parameter appears only if 'Fax Transport Mode' is set to ‘T.38 Relay’. Fax Relay Jitter Buffer Delay Defines the Fax Relay Jitter Buffer.  0 = Adaptive Jitter Buffer. The MP252 sets the Jitter Buffer size automatically and then adapts it according to network conditions.  1 to 511 = Fixed Jitter Buffer size (in msec). Note: This parameter appears only if 'Fax Transport Mode' is set to ‘T.38 Relay’. Error Correction Mode Enables (default) fax error correction mode (ECM). Note: This parameter appears only if 'Fax Transport Mode' is set to ‘T.38 Relay’. Fax Bypass Payload Type Defines the payload type for fax in Bypass mode. Note: This parameter appears only if 'Fax Transport Mode' is set to ‘Bypass’. Modem Transport Mode Selects the way modem calls are handled:  Transparent = Data is transferred in-band (like a voice call). This can be used if the codec is G.711.  Voice Band Data = Switch to G.711 via SIP messaging.  Bypass = An automatic switch to AudioCodes' proprietary payload type (102, 103). Note: If the Fax transport mode is Bypass or VBD, it must match the Modem transport mode. Modem Bypass Payload Type Defines the payload type for modems in Bypass mode. Note: This parameter appears only if 'Modem Transport Mode' is set ‘Bypass’. Fax/Modem Bypass Codec Defines the codec for the VBD and Bypass modes. PCMA (default) or PCMU.  G.711 64 kbps A-Law -OR- G.711 64 kbps u-Law
MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters Version 3.4.0  95  June 2011 Parameter  Description CED Transfer Mode  By Fax Relay: When MP252 is the receiver side, Switch to Fax relay is enabled upon CED. This allows a high reliable fax-over-IP call establishment at the beginning of CED tone.   In Voice Or PCM Bypass: When MP252 is the receiver side, to avoid possible conflicts with low-speed modems, the CED (ANS) relay by FoIP protocol may be disabled by setting the CED transfer mode to ‘In Voice Or PCM Bypass’. In this case, MP252 does not initiate the Fax Relay on detecting CED tone in absence of CNG, but switches to VBD or remains in voice mode (depends on the Modem Transport Mode). MP252 switches to FoIP later when it defines exactly that a monitored call is the fax call (CED and CND or V.21 Preamble). Enable CNG Detection Enables detection of the fax CNG signal. When the local fax machine connected to MP252 receives a fax, MP252 switches to T.38 fax relay upon detection of the CED signal from the remote fax. If the local fax machine sends a fax, MP252 switches to T.38 only after detecting the CNG signal from the local side and the CED signal from the remote side. If this check box is selected, MP252 switches to T.38 relay immediately upon detection of the CNG signal from the local side, without waiting for the CED signal from the remote side. The default is disabled. Switch To Fax Only By The Answering Side Typically, switching to fax mode is the responsibility of the answering side. However, in some cases, the sending machine can also switch to fax mode. If this check box is marked, the sending machine does not switch to fax, but allows the answering side to detect the fax and switch to fax mode.   8.5  Configuring Supplementary Services The procedure below describes how to configure the services parameters.  To configure supplementary services: 1.  In the 'Voice Over IP' screen, click the Services tab; the following screen appears.  Figure 8-6: Services Tab Screen
MP252 Multimedia Home Gateway  96  Document #: LTRT-23504   User's Manual   2.  Configure the parameters, as required. For a description of the parameters displayed on this screen, see Table 8-6. 3.  Click OK to save your settings. Table 8-6: Services Tab Parameters Description Parameter  Description Call Waiting Enabled Enables the Call Waiting feature.
MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters Version 3.4.0  97  June 2011 Parameter  Description Call Waiting SIP Reply Defines the SIP response (180 Ringing or 182 Queued - default) sent when another call arrives while a call is in progress. Note: This parameter appears only if Call Waiting is enabled. Enable Caller ID Type II Enables caller ID of a waiting call (Called Caller ID type 2). Note: This parameter appears only if Call Waiting is enabled. Call Forward Enabled Enables call forwarding. The Call Forward feature permits a user to redirect incoming calls addressed to another number. The user’s ability to originate calls is unaffected by Call Forward. Note: The Call Forward feature is functional only when MP252 is registered to a proxy. Call Forward Type  Defines the type of call forwarding:  Unconditional: Incoming calls are forwarded independently of the status of the endpoint.  Busy: Incoming calls are forwarded only if the endpoint is busy, i.e., if all lines are active.  No Reply: Incoming calls are forwarded only if the endpoint does not answer before a user-defined timeout (see ‘Time for No Reply Forward’ parameter). Note: This parameter appears only if Call Forward is enabled. Time for No Reply Forward Defines the timeout after which the call is forwarded if the endpoint does not answer. If you specify 5 seconds, for example, and 'No Reply' is selected for parameter 'Call Forward Type' (see above), incoming calls are forwarded only after 5 seconds lapse. Note: This parameter is available only when ‘No Reply’ is selected for the parameter 'Call Forward Type'. Key Sequence The default is *72 but users can modify to any sequence of up to 2 digits, i.e., *n or *nm.  Do Not Disturb Enabled  Enables the Do Not Disturb (DND) feature. This feature allows you to prevent incoming calls from ringing at your phone. When enabled, callers receive a busy signal or an announcement. The DND is activated using the phone keypad. The default is disabled. Key Sequence  Defines the key sequence to activate and deactivate the DND feature. 3 Way Conference 3 Way Conference Mode Selects how 3-way conference calls are handled:  Local: locally by MP252  Remote: by a remote media server (RFC 4240) Media Server Address  The address of the remote media server that handles conference calls. Note: This parameter is available only when ‘Remote’ is selected for the parameter '3 Way Conference Mode'.
MP252 Multimedia Home Gateway  98  Document #: LTRT-23504   User's Manual  Parameter  Description Message Waiting Indication Enabled  If a user has an unheard voice mail message, a stutter dial tone is heard when the user picks up the phone. In addition, MP252 generates an FSK signal to the phone to indicate that a message is waiting. If the telephone connected to MP252 supports this feature, an MWI ‘envelope icon’ is displayed. Subscribe to MWI Select this check box if you must register with a MWI subscriber server. If so, configure the three parameters below. MWI Server IP Address or Host Name Defines the IP address or host name of the MWI server. Note: This parameter is available only when the check box 'Subscribe to MWI' is selected. MWI Server Port  Defines the port number of the MWI server. Note: This parameter is available only when the check box 'Subscribe to MWI' is selected. MWI Subscribe Expiration Time Defines the interval between registrations. Note: This parameter is available only when the check box 'Subscribe to MWI' is selected. General Parameters Stutter Tone Duration When you enable message waiting and an unheard message exists, a stutter tone is played to the phone for the duration configured by this parameter and/or when you activate the call forwarding feature (see Section 10.6 on page 111). Out of Service Behavior Defines the tone which is played instead of a dial tone if the user configured a registrar IP and the registration failed. When the Reorder tone is selected, a Reorder tone is played instead of a dial tone. If “No Tone” is selected, then no tone is played.
MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters Version 3.4.0  99  June 2011 8.6  Configuring Line Settings Before  you  can  make  phone  calls,  you  need  to  configure  lines.  Lines  are  SIP  logical  ID numbers (i.e., telephone  numbers),  which are registered to the SIP proxy server, and for which you are charged for calls you make on it. MP252 supports two line-configuration modes:  One-Line Configuration: In this mode, only one line is configured to represent all the physical telephone extensions on MP252 (i.e., two analog phones and five DECT handsets): • When you receive an incoming call, all the extensions on the line ring, and you can answer from any one of them. When you do answer, the other extensions stop ringing.  • If you receive another incoming call when you already have an established call on one extension, all the idle extensions ring, and the busy extension hears a call waiting tone. • You can make outgoing calls from any of the extensions.  • You can make multiple concurrent calls (i.e., each extension makes a call to a different destination and at the same time).  Three-Lines Configuration: In this mode, three lines can be configured: • Line 1 for the analog telephone connected to the MP252 port labeled Phone 1 • Line 2 for the analog telephone connected to the MP252 port labeled Phone 2 • Line 3 for all the DECT handsets (up to five)  To configure lines: 1.  In the 'Voice Over IP' screen, click the Line Settings tab; the following screen appears. Figure 8-7: Line Settings Tab Screen  2.  Select  the  configuration  mode  options  –  One  Line  Configuration  or  Three  Lines Configuration;  the  table  lists  the  lines  according  to  the  selected  line  configuration mode.  3.  For each line, click the corresponding Edit  icon to configure the line; the following screen appears:
MP252 Multimedia Home Gateway  100  Document #: LTRT-23504   User's Manual  Figure 8-8: Line Settings Screen for a New Line  The screen displays the following read-only information: • Line Number: line number • Extensions Registered: extensions registered to this line  4.  In the ‘User ID’ field, enter phone's VoIP user ID used for identification to initiate and accept calls. 5.  To hide the phone’s ID from the remote party, select the ‘Block Caller ID’ check box. 6.  In  the  ‘Display  Name’  field,  enter  a  name  to  intuitively  identify  the  line.  This  is  also displayed to remote parties as your caller ID. 7.  Under the SIP Proxy group, define the SIP proxy server: a.  In the ‘Authentication User Name’ field, enter the user name received from your VoIP service provider. This is used when sending a response to Unauthorized or Proxy Authentication Requested (401/407). b.  In the ‘Authentication Password’ field, enter the password received from your VoIP service provider. This is used when sending a response to Unauthorized or Proxy Authentication Requested (401/407). 8.  In the ‘Line Voice Volume’ field, enter the voice volume of the line (i.e., the gain from the network toward the local phone). The default is 0 dB. 9.  To  enable  supplementary  services  on  this  line,  select  the  ‘Enable  Supplementary Services’ check box. 10.  To enable automatic dialing (which automatically dials a user-defined phone number when the line is off-hooked longer than a user-defined time), do the following: c.  Select the ‘Enable Automatic Dialing’ check box.
MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters Version 3.4.0  101  June 2011 d.  In the ‘Automatic Dialing Timeout’ field, enter the time after which automatic dialing is activated if the user has not started dialing before this timeout. When set to 0, automatic dialing is performed immediately. e.  In the ‘Automatic Dialing Destination’ field, enter the destination that is automatically dialed. This can be a phone number or a domain name (for example, user@101.10.13.2 or user@domain name). 11.  Click OK to save your settings.
MP252 Multimedia Home Gateway  102  Document #: LTRT-23504   User's Manual  8.7  Configuring Line Extensions Extensions are the physical telephony extensions on MP252. These can either be FXS ports (for analog telephones) or cordless DECT handsets. Once you have defined your lines, you can do the following:  Define an arbitrary name for each extension (to help you identify the extension).  Initiate the registration process of the lines with the proxy server (and DECT with base unit)  To configure line extensions: 1.  In the 'Voice Over IP' screen, click the Extension  Settings tab; the following screen appears. Figure 8-9: Extension Settings Tab Screen  2.  For each line extension, click the corresponding Edit  icon to define a name for the extension; the following screen appears: Figure 8-10: Extension Settings Screen  3.  Click OK to save your settings.  To register the lines:
MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters Version 3.4.0  103  June 2011 4.  In the ‘Extension Settings Tab; screen; click the Register button. 8.8  Configuring Speed Dialing Use  the  'Speed  Dial  Settings'  screen  to  associate  a  called  party's  contact  parameters (including the IP address of his/her ATA and Line ID) with a number that you'll dial to call the called part. The number of speed-dialing  codes  that  can be defined is unlimited.  Use  the screen to define a destination type: Proxy, Local Line or Direct Call.   Note:   When  connecting  MP252  to  a  World-Wide  SIP  Server  (see  'Connecting MP252's  VoIP  to  a  VoIP  Service  Provider'  on  page  107),  you  don't  need  to configure 'Speed Dial Settings'.   To configure speed dialing: 1.  In the 'Voice Over IP' screen, click the Speed Dial tab; the following screen appears: Figure 8-11: Speed Dial Tab Screen  2.  Click the New  icon; the 'Speed Dial Settings' screen appears.  Figure 8-12: Speed Dial Settings Screen (Proxy Destination)  3.  In the ‘Speed Dial’ field, enter the shortcut number (i.e., speed dial) which you dial to call the party defined below. 4.  From the ‘Destination’ drop-down list, select the destination type. • Proxy: If you select this option (as shown in the figure above), then in the ‘User ID’ field, enter the user ID to call. • Local Line: If you select this option, then from the ‘Line’ drop-down list, select the configured local line on your MP252.
MP252 Multimedia Home Gateway  104  Document #: LTRT-23504   User's Manual  Figure 8-13: Speed Dial Settings Screen (Local Line Destination)  • Direct Call: if you select this option, then configure the following: a.  In the ‘User ID’ field, enter the user ID to call. b.  In the ‘IP Address or Host Name’ field, enter the remote party's IP address or host name. c.  In the ‘Port’ field, enter the SIP UDP or TCP port of the remote party. Figure 8-14: Speed Dial Settings Screen (Direct Call Destination)  5.  Click OK to save your settings.   8.9  Enabling Polarity Reversal The procedure below describes how to enable polarity reversal. When this feature is enabled, the analog port (FXS) interface polarity is reversed to indicate the start of a VoIP session, and is reversed back when the VoIP session ends.  To enable polarity reversal: 1.  In the 'Voice Over IP' screen, click the Telephone Interface tab; the following screen appears:
MP252 Multimedia Home Gateway  8. Configuring VoIP Parameters Version 3.4.0  105  June 2011 Figure 8-15: Telephone Interface Tab Screen  2.  Select the 'Enabled' check box to enable the Polarity Reversal feature.  3.  Click OK to apply your settings.   8.10  Selecting Regional Settings for Analog Lines The behavior and parameters of analog telephones lines vary between countries. The set of Call Progress Tones, the protocol used for caller ID and the analog line impedance are all location-specific.  MP252  enables  users  to  select  the  country  they  reside  in  and  MP252 automatically selects the correct regional settings.  To select your present location: 1.  In  the  'Advanced'  screen,  click  the  Regional  Settings   icon;  the  'Regional Settings' screen appears. 2.  Select the country from the drop-down list. If your current location is not listed, contact your service provider. Figure 8-16: Regional Settings Screen  3.  Click OK. 4.  Reboot MP252 for your settings to take effect.
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Version 3.4.0  107  July 2011 MP252 Multimedia Home Gateway  9. Connecting MP252 to an ITSP  9  Connecting MP252 to an ITSP The  MP252  VoIP  capabilities  allow  you  to  connect  to  a  remote  SIP  server  or  Internet Telephony Service Provider (ITSP) and conduct phone calls over the Internet (i.e., VoIP). This chapter describes how to place a VoIP call utilizing MP252's VoIP capabilities over a SIP  server.  Verify  that  your  MP252  and  telephone  are  correctly  connected  and  that  your WAN connection is up.  9.1  Opening a SIP Account Before you can connect to a SIP server, it is necessary that you obtain a SIP account.  9.2  Configuring VoIP Parameters   Note:  This section describes the minimal set of changes required to connect to a VoIP Service Provider. Other configuration changes might be required to connect to some Service Providers.   To configure VoIP parameters: 1.  In the menu bar, click the menu Voice Over IP; the ‘Voice Over IP’ screen appears. 2.  Click the Line Settings tab. Enable only the lines that you are using, by selecting the check box, and then click Apply. Figure 9-1: Voice Over IP - Line Settings Screen  3.  Click the Edit  icon corresponding to the line that you want to configure (example, line 1); the ‘Line Settings’ screen appears. Use the configuration values provided by your ISP to configure the parameters in this screen.
MP252 Multimedia Home Gateway  108  Document #: LTRT-23504   User's Manual  Figure 9-2: VoIP - Line Settings - Defining a New Line  4.  Click the Signaling Protocol tab and then select the ‘Use SIP Proxy’ check box (see 'Configuring Signaling Protocol Parameters' on page 77). 5.  In the field ‘Proxy IP Address or Host Name’, define the ISP’s SIP proxy, provided by the ISP (see 'Configuring Signaling Protocol Parameters' on page 77). 6.  Click OK or Apply to complete the VoIP configuration.   Note:  To verify successful registration with the proxy server, ensure that the Phone LED is lit green or in the Voice  over  IP tab (System  Monitoring menu), the entry ‘SIP Registration’ displays “Registered” for the configured lines.
Version 3.4.0  109  July 2011 MP252 Multimedia Home Gateway  10. Making VoIP Calls with your Analog Telephones  10  Making VoIP Calls with your Analog Telephones Analog  telephone  users  that  are  connected  to  MP252  can  place  calls,  put  calls  on  hold, transfer calls, and establish three-way conferences. This chapter describes how to perform these operations.   Note:  For information on using the DECT phone, see Part II.   10.1  Making a Call The procedure below describes how to make a call.  To make a call: 1.  Pick up the phone. 2.  Make sure that you can hear a dial tone 3.  Dial the remote party's number or the user-defined speed dial number (if configured in Section 8.8 on page 103).  10.2  Answering a Waiting Call The  procedure  below  describes  how  to  answer  a  waiting  call.  This  depends  on  how  you configured the flash-hook functionality, using the ‘Flash keys sequence style’ parameter in Section 8.2 on page 86. To enable call waiting, see Section 8.5 on page 95.  To answer a waiting call when 'Flash only' is set: 1.  When you hear a call waiting tone (during a call), press the flash key button on your phone; the active call is put on hold and switches to the waiting call. 2.  To return to the original call, press the flash button again. You can toggle from one party to another by pressing the flash button.  To answer a waiting call when 'Flash + digits sequence' is set: 1.  When you hear the call waiting tone (during a call), press the flash key button on your phone and then press the '1' key; the original call is put on hold and switches to the waiting call. 2.  To return to the original call, press flash + 1 again. You can toggle from one party to another by pressing flash + 1.
MP252 Multimedia Home Gateway  110  Document #: LTRT-23504   User's Manual  10.3  Placing a Call on Hold The  procedure  below  describes  how  to  place  a  call  on  hold.  This  depends  on  how  you configured the flash-hook functionality, using the ‘Flash keys sequence style’ parameter in Section 8.2 on page 86.  To place the remote party on hold when 'Flash only' is set:  During a call, press the flash key button on your phone; a dial tone is heard. At this point you can initiate a second call by dialing another party's number.   Note:  If you press the flash key button again before the second party answers, the call is established with the original call. If, however, the second party answers and you press the flash key button, a 3-way conference is established.   To place the remote party on hold when 'Flash + digits sequence' is set: 1.  Press the flash key button key and then press the '1' key on your phone; the phone plays a dial tone. At this point you can initiate a second call by dialing another party's number. 2.  To cancel the hold state and resume the previous phone call, press the flash key button and then press '1'.   10.4  Transferring a Call The procedure below describes how to transfer an established call to another destination. This  depends  on  how  you  configured  the  flash-hook  functionality,  using  the  ‘Flash  keys sequence style’ parameter in Section 8.2 on page 86.  To transfer a call when 'Flash only' is set: 1.  During a call with party B, press the flash key button on your phone; party B is placed on hold and a dial tone is heard. 2.  Dial party C's number. 3.  You can wait for C to answer or not. 4.  On-hook your phone; party B is now transferred to party C.  To transfer a call when 'Flash + digits sequence' is set: 1.  During a call with party B, press the flash key button and then press the '1' key on the phone; party B is placed on hold and a dial tone is heard. 2.  Dial party C's number. 3.  You can wait for C to answer or not. 4.  Press the flash key button key and then press '2'; party B is transferred to party C (and a warning tone is heard).
MP252 Multimedia Home Gateway  10. Making VoIP Calls with your Analog Telephones Version 3.4.0  111  June 2011 10.5  Establishing a 3-Way Conference Call The procedure below describes how to establish a 3-way conference call. The method for doing this depends on how you configured the flash-hook functionality, using the ‘Flash keys sequence  style’  parameter  in  Section  8.2  on  page  86. In  addition,  to  configure  3-way conferencing, see Section 8.5 on page 95.  To establish a 3-way conference call when 'Flash only' is set: 1.  During a call with party B, press the flash key button on your phone; Party B is placed on hold and a dial tone is heard. 2.  Dial party C's number and wait until the call is established. 3.  Press the flash key button again to add parties B and C to a 3-way conference call. 4.  To end the 3-way conference call, on-hook your phone (or alternatively, press the flash key button again).  To establish  a  3-way conference  call  when  'Flash  +  digits  sequence' is set: 1.  During a call with party B, press the flash key button on your phone and then press the '1' key; Party B is placed on hold and a dial tone is heard. 2.  Dial party C's number and wait until the call is established. 3.  Press  the  flash  key  button  and  then  press  the  '3'  key  to  add  B  and  C  to  a  3-way conference call. 4.  To end the 3-way conference call, on-hook your phone (or alternatively, press the flash key button and then press the '3' key).
MP252 Multimedia Home Gateway  112  Document #: LTRT-23504   User's Manual  10.6  Forwarding Calls to another Phone The procedure below describes how to automatically forward incoming (received) calls to another  phone.  Before  you  can  forward  calls,  you  need  to  enable  and  configure  call forwarding as described in Section 8.5 on page 95.   Note:  The Call Forward feature is functional only when MP252 is registered to a proxy.   To forward calls to another phone: 1.  Pick up the phone and make sure that you can hear a dial tone. 2.  Dial the call forward key sequence (according to your configuration), for example, *32; a dial tone is heard. 3.  Dial the number of the phone to where you want calls forwarded; a stutter tone is heard. 4.  Replace  the  receiver;  all  incoming  calls  are  forwarded.  Every  time  you  pick  up  the phone receiver, a stutter tone is played (for the length of time, as you configured for the 'Stutter Tone Duration' parameter).  To deactivate call forwarding: 1.  Pick up the phone; a stutter tone is heard. 2.  Dial the call forward key sequence. 3.  Replace the receiver. 4.  To make sure that call forwarding has been de-activated, pick up the phone again; a regular dial tone should be heard (not the stutter tone).
Version 3.4.0  113  July 2011 MP252 Multimedia Home Gateway  11. Quality of Service  11  Quality of Service Network-based  applications  and  traffic  are  growing  at  a  high  rate,  producing  an ever-increasing  demand  for  bandwidth  and  network  capacity.  For  obvious  reasons, bandwidth and capacity cannot be expanded infinitely, requiring that bandwidth-demanding services  be  delivered  over  existing  infrastructure,  without  incurring  additional,  expansive investments. The next logical means of ensuring optimal use of existing resources are Quality of Service (QoS) mechanisms for congestion management and avoidance. QoS refers to the capability of a network device to provide better service to selected network traffic. This is achieved by shaping the traffic and processing higher priority traffic before lower priority traffic. As QoS is dependent on the "weakest link in the chain", failure of but a single component along the data path to assure priority packet transmission can easily cause a VoIP call or a Video  on  Demand  (VoD)  broadcast  to  fail  miserably.  QoS  must  therefore  obviously  be addressed end-to-end. The following are the potential bottleneck areas that need be taken into consideration when implementing an end-to-end QoS-enabled service.  The Local Area Network: LANs have finite bandwidth, and are typically limited to 100 Mbps. When given the chance, some applications consume all available network bandwidth. In business networks, a large number of network-attached devices can lead to congestion. The need for QoS mechanisms is more apparent in wireless LANs, where bandwidth is even more limited (typically no more than 20 Mbps on 802.11g networks).  The Broadband Router: All network traffic passes through and is processed by the broadband router. It is therefore a natural focal point for QoS implementation. Lack of sufficient buffer space, memory or processing power, and poor integration among system components can result in highly undesirable real-time service performance. The only way to assure high QoS is the use of proper and tightly-integrated router operating system software and applications, which can effectively handle multiple real-time services simultaneously.  The Broadband Connection: Typically, the most significant bottleneck of the network, this is where the high speed LAN meets limited broadband bandwidth. Special QoS mechanisms must be built into routers to ensure that this sudden drop in connectivity speed is taken into account when prioritizing and transmitting real-time service-related data packets.  The Internet: Internet routers typically have a limited amount of memory and bandwidth available to them, so that congestions may easily occur when links are over-utilized, and routers attempt to queue packets and schedule them for retransmission. One must also consider the fact that while Internet backbone routers take some prioritization into account when making routing decisions, all data packets are treated equally under congested conditions.   Note:  For recommended QoS configuration see Section 11.7 on page 128.
MP252 Multimedia Home Gateway  114  Document #: LTRT-23504   User's Manual  11.1  QoS Wizard The  QoS  wizard  allows  you  to  configure  your  QoS  parameters  according  to  predefined profiles, with just a few clicks. A chosen QoS profile automatically defines QoS rules, which you can view and edit in the rest of the QoS tab screens. The QoS wizard also allows you to define the WAN bandwidth.  To use the QoS Wizard: 1.  From the menu bar, click the QoS menu link; the ‘Quality of Service’ screen appears with the QoS Wizard tab selected by default. Figure 11-1: QoS Wizard Tab Screen  2.  Define bandwidth limitation. From the 'WAN Devices Bandwidth (Rx/Tx)' drop-down list, select ‘User Defined’ if you want to define specific Rx and Tx bandwidth limitations, or select  the Rx/Tx optional values provided in the drop-down list.
MP252 Multimedia Home Gateway  11. Quality of Service Version 3.4.0  115  June 2011 3.  In the QoS Profiles group, select a QoS profile. 4.  Click OK.   Note:  Selecting a new QoS profile deletes all previous QoS settings.   11.2  Traffic Shaping Traffic Shaping is the solution for managing and avoiding congestion where a high speed LAN  meets  limited  broadband  bandwidth.  A  user  may  have,  for  example,  a  100  Mbps Ethernet LAN with a 100 Mbps WAN interface router. The router may communicate with the ISP  using  a  modem  with  a  bandwidth  of  2  Mbps.  This  typical  setup  makes  the  modem, having no QoS module, the bottleneck. The router sends traffic as fast as it is received, while its well-designed QoS algorithms are left unused. Traffic shaping limits the bandwidth of the router, artificially forcing the router to be the bottleneck. A traffic shaper is essentially a regulated queue that accepts uneven and/or bursty flows of packets  and  transmits  them  in  a  steady,  predictable  stream  so  that  the  network  is  not overwhelmed with traffic. While Traffic  Priority  allows  basic  prioritization  of  packets,  Traffic  Shaping  provides  more sophisticated definitions such as:  Bandwidth limit for each device  Bandwidth limit for classes of rules  Prioritization policy  TCP serialization on a device You can also define QoS traffic shaping rules for a default device. These rules are used on a device that has no definitions of its own. This enables the definition of QoS rules on Default WAN, for example, and their maintenance even if the PPP or bridge device over the WAN is removed. MP252  also  supports  dynamic  traffic  shaping  during  a  call.  Traffic  shaping  is  critical  in residential VoIP gateways because of the bottleneck created in the ADSL or Cable modem, mainly in the  upload  direction. Dynamic  traffic shaping ensures a minimum bandwidth for VoIP calls. Without dynamic traffic shaping, traffic shaping limits the bandwidth at all times, even  if  the  user  is  not  making  a  VoIP  call  and  therefore,  the  service  provider  needs  to configure the QoS traffic shaping transmit (Tx) bandwidth according to the user's specific upload bandwidth. Configuring a lower value results in a lower upload bandwidth (not only during VoIP calls). Dynamic traffic shaping enables the service provider to configure two upload traffic shaping bandwidth parameters:  "Tx Bandwidth" - for all traffic  "Tx Bandwidth during Call" - for VoIP calls MP252 normally uses the "Tx Bandwidth" value. When the user makes a VoIP call (i.e. any phone/s  connected  to  MP252  is  ringing  or  off-hook),  MP252  switches  to  use  the  "Tx Bandwidth during Call" value. 11.2.1  Device Traffic Shaping The procedure below describes how to configure traffic shaping.  To add a traffic shaping device: 1.  From the menu bar, click the QoS menu, and then click the Traffic Shaping tab.
MP252 Multimedia Home Gateway  116  Document #: LTRT-23504   User's Manual  Figure 11-2: Quality of Service – Traffic Shaping Screen  2.  Click the New   icon; the 'Add Device Traffic Shaping’ screen appears. Figure 11-3: Add Device Traffic Shaping Screen  3.  From the ‘Device’ drop-down list, select the device for which you want to shape traffic. The list includes all interfaces (e.g., All LAN Devices, All WAN Devices) and VPNs such as PPoE, PPTP and L2TP (if defined). For example, select 'WAN Ethernet', and then click OK; the ’Edit Device Traffic Shaping’ screen appears. Figure 11-4: Edit Device Traffic Shaping Screen
MP252 Multimedia Home Gateway  11. Quality of Service Version 3.4.0  117  June 2011 4.  Under the Tx  Traffic  Shaping group, from the ‘Tx Bandwidth’ drop-down  list, select ‘Specify’  and  define  the  MP252’s  maximum  transmission  bandwidth  rate  in  the corresponding field. The purpose is to limit the bandwidth of the WAN interface to that of the weakest outbound link, for instance, the DSL speed provided by the ISP. This forces MP252  to  be  the  network  bottleneck,  where  sophisticated  QoS  prioritization  can  be performed.  If  the  device’s  bandwidth  is  not  limited  correctly,  the  bottleneck  is  an unknown  router  or  modem  on  the  network  path,  rendering  MP252  QoS  useless.  To configure unlimited bandwidth, select ‘Unlimited’. 5.  Under the Rx  Traffic  Policing group, from the ‘Rx Bandwidth’ drop-down list, select ‘Specify’ and define the MP252’s maximum receive bandwidth rate in the corresponding field. This limits MP252’s bandwidth receipt rate to that of the DSL modem. 6.  From the ‘TCP Serialization’ drop-down list, select whether to enable TCP serialization. The screen refreshes, displaying the ’Maximum Delay’ field. This allows you to define the maximum allowed transmission time frame (in milliseconds) of a single packet. Any packet that requires a longer time to be transmitted is fragmented to smaller sections. This  avoids  transmission  of  large,  bursty  packets  that  may  cause  delay  or  jitter  for real-time traffic such as VoIP. 7.  Select the ‘Enable Dynamic Traffic Shaping’ check box if you want to configure traffic shaping specifically for VoIP calls (see Section 11.2 on page 115). When selected, the ‘Tx  Bandwidth  During  VoIP  Call’  field  appears.  Enter  the  bandwidth  for  VoIP  calls. MP252  normally uses the "Tx Bandwidth"  parameter  value. When the user  makes  a VoIP call (i.e. any phone connected to MP252 is ringing or off-hook), MP252 switches to use the "Tx Bandwidth during Call" parameter value.   11.2.2  Shaping Classes The  bandwidth  of  a  device  can  be  divided  to  reserve  constant  portions  of  bandwidth  to user-defined traffic types. Such a portion is known as a Shaping Class. When not used by its user-defined traffic type or owner (for example, VoIP), the class is then available to all other traffic. However when needed, the entire class is reserved solely for its owner. Moreover, you can  limit  the  maximum  bandwidth  that  a  class  can  use  even  if  the  entire  bandwidth  is available. When a shaping class is defined for a specific traffic type, two shaping classes are created. The second class is the 'Default Class', responsible for all the packets that do not match the defined shaping class or any other classes that may be defined on the device. This can be viewed in the Class Statistics screen.  To add a shaping class: 1.  From the menu bar, click the QoS menu, and then click the Traffic Shaping tab. 2.  Click the Edit   icon corresponding to the added Device (e.g., WAN); the 'Edit Device Traffic Shaping' screen appears. 3.  Under the Tx Traffic Shaping group, click the New   icon; the 'Add Shaping Class' screen appears. Figure 11-5: Add Shaping Class Screen  4.  In the ‘Name’ field, enter a name for the class, and then click OK; the 'Edit Device Traffic Shaping' screen appears.
MP252 Multimedia Home Gateway  118  Document #: LTRT-23504   User's Manual  5.  Edit the newly added shaping class, by clicking the corresponding Edit  icon; the 'Edit Shaping Class' screen appears. Figure 11-6: Edit Shaping Class  6.  In the ‘Name’ field, modify the class name, if required. 7.  From the ‘Class Priority’ drop-down list, select the priority level for the class, where zero is the highest and seven the lowest. 8.  In the ‘Bandwidth’ field, define the bandwidth for the class: • Reserved: reserved (i.e., guaranteed) bandwidth (Committed Information Rate / CIR) in kbps. • Maximum: specify the maximum bandwidth 9.  From the ‘Policy’ drop-down list, select the policy for routing packets within the class: • Priority: Priority queuing uses multiple queues so that traffic is distributed among queues based on priority. This priority is defined according to packet priority, which can be defined explicitly by a DSCP value or an 802.1p value. • FIFO: First In First Out. This priority queue ignores any previously-marked packet priority. • Fairness: The fairness algorithm ensures no starvation by granting all packets a certain level of priority. • RED: Random Early Detection. Utilizes statistical methods to drop packets in a ‘probabilistic’ way before queues overflow. Dropping packets in this way slows a source down enough to keep the queue steady and reduces the number of packets that would be lost when a queue overflows and a host is transmitting at a high rate. 10.  From the ‘Schedule’ drop-down list, select the scheduler rule (defined in Section 4.5.1 on page 47) that defines the time segments during which the class can be active. By default, the class is always active. 11.  Click OK to save your settings.   11.2.2.1  Class Rules Class rules define which packets belong to the class. Without class rules, the shaping class has no effect. Each class can have outbound and inbound rules for outgoing and incoming traffic respectively. For example, you can define that all outgoing packets from computer A in your  LAN  belong  to  your  VoIP  class.  These  packets  are  limited  to  the  class  settings (bandwidth, schedule,  etc.). In addition,  you can define the  traffic protocol and priority for each rule (this is not mandatory as in Traffic Priority rules). 11.2.2.1.1 Inbound and Outbound Data
MP252 Multimedia Home Gateway  11. Quality of Service Version 3.4.0  119  June 2011 MP252 can control outgoing data easily. It can queue packets, delay them, give precedence to other packets, or drop them. This helps in resolving upload (Tx) traffic bottlenecks and in most cases is sufficient. However, in the case of download (Rx) traffic bottlenecks, the ability to control the flow is much more limited. MP252 cannot queue packets, since in most cases the LAN is much faster than the WAN and when MP252 receives a packet from the WAN, it passes it immediately to the LAN. QoS for ingress data has the following limitations, which do not exist for outgoing data:  QoS can only be applied to TCP streams (UDP streams cannot be delayed)  No borrowing mechanism  When reserving Rx bandwidth, it is strictly taken from the bandwidth of all other classes
MP252 Multimedia Home Gateway  120  Document #: LTRT-23504   User's Manual  In addition, MP252 cannot control the behavior of its WAN (usually the ISP), which may not have proper QoS handling. Let’s look at a scenario of downloading a large file and surfing the Internet at the same time. Downloading the file is distinguished by small requests, followed by very large responses. This may result in blocking HTML traffic at the ISP. A solution for such  a  scenario  is  limiting  the  bandwidth  of  low-priority  TCP  connections  (such  as  file download). To add outbound and inbound class rules, see 11.3 on page 120.   Note:  The hierarchy of the class rules is determined by the order of their addition to the class. For example, if your first rule is match packets with any source address, any  destination  address,  and  any  protocol  to  this  class;  then  all  packets traversing MP252 are associated with the specific class. Any rules defined later do not have any effect.   11.3  Traffic Priority Traffic Priority allows you to manage and avoid traffic congestion by defining inbound and outbound priority rules for each device on your MP252. These rules determine the priority assigned  to  packets  traveling  through  the  device.  QoS  parameters  (DSCP  marking  and packet priority) are set per packet, on an application basis. You can set QoS parameters using flexible rules, according to the following parameters:  Source/destination IP address, MAC address or host name  Device  Source/destination ports  Limit the rule to specific days and hours MP252 supports two priority marking methods for packet prioritization:  DSCP  802.1p Priority The matching of packets by rules is connection-based, known as Stateful Packet Inspection (SPI), using the same connection-tracking mechanism used by the firewall. Once a packet matches  a  rule,  all  subsequent  packets  with  the  same  attributes  receive  the  same  QoS parameters, both inbound and outbound. A packet can match more than one rule, and therefore:  The first class rule has precedence over all other class rules (scanning is stopped once the first rule is reached).  The first traffic-priority (classless) rule has precedence over all other traffic-priority rules.  There is no prevention of a traffic-priority rule conflicting with a class rule. In this case, the priority and DSCP setting of the class rule (if given) takes precedence.
MP252 Multimedia Home Gateway  11. Quality of Service Version 3.4.0  121  June 2011 Connection-based QoS also allows inheriting QoS parameters by some of the applications that open subsequent connections. For instance, you can define QoS rules on SIP and the rules then apply to both control and data ports (even if the data ports are unknown). This feature applies to all applications that have ALG at firewall:  Any  User Defined (FTP, HTTP, HTTPS, TFTP, IMAP, PING, POP3, SNMP, SMTP, Telnet, L2TP, Traceroute or any other protocol)  To set traffic priority rules: 1.  From the menu bar, click the QoS menu, and then select the Traffic Priority tab; the 'Traffic Priority' screen appears.  Figure 11-7: Traffic Priority Screen  This screen is divided into two identical groups - ’QoS Input Rules’ and ’QoS Output Rules’ - for prioritizing inbound and outbound traffic respectively. Each group lists all the devices on which rules can be set. You can set rules on all devices at once by clicking the New Entry link corresponding to 'All Devices' 2.  After  clicking  the  appropriate  New  Entry  link,  the  'Add  Traffic  Priority  Rule'  screen appears.
MP252 Multimedia Home Gateway  122  Document #: LTRT-23504   User's Manual  Figure 11-8: Add Traffic Priority Rule Screen  3.  Under the Matching group, configure the matching characteristics: a.  From the ‘Source Address’ drop-down list, select 'Any', 'User Defined' or the host as the source address of the packets sent to or received from the network object. If you have created network objects (see Section 4.5.2 on page 50), then these are also displayed in the list (or you can create one by selecting ‘User Defined’). b.  From the ‘Destination Address’ drop-down list, select the network object for the destination address of the packets sent to or received from the network object. See Step 3 above for a detailed explanation on the options.    c.  From the ‘Protocol’ drop-down list, select the protocol. You can apply the rule to all protocols (i.e., ‘Any’) or select an already defined protocol. You can create a new protocol by selecting ‘User Defined’, and then following the procedure described in Section 4.5.3 on page 51. d.  To match DSCP, select the ‘DSCP’ check box, and then enter the DSCP markings. e.  To match priority, select the ‘Priority’ check box, and then select the priority of the packets.
MP252 Multimedia Home Gateway  11. Quality of Service Version 3.4.0  123  June 2011 f.  To match the Device, select the ‘Device’ check box, and then select the Device interface. g.  To match packet or data length, select the ‘Length’ check box, and then enter the data or packet length. h.  To match connection duration, select the ‘Connection Duration’ check box, and then enter the duration of the connection (greater or less than). i.  To match connection size, select the ‘Connection Size’ check box, and then enter the connection size. 4.  Under the Operation group, configure the QoS operation: a.  Select the ‘Set DSCP’ check box to mark a DSCP value on packets matching this rule and then enter the hexadecimal value of the DSCP. b.  Select the ‘Set Priority’ check box to add a priority to the rule and then select the priority level (where 0 is the lowest and 7 the highest). This sets the priority of a packet on the connection matching the rule, while routing the packet. c.  Select the ‘Tx Class Name’ check box, and then select the class name that you defined. d.  From the ‘Apply QoS on’ drop-down list, select whether you want to apply the QoS rule on the connection or on the packet. 5.  Select the ‘Log Packets Matched by This Rule’ check box to log the first packet from a connection that matches by this rule. 6.  From the ‘Schedule’ drop-down list, select the time segments during which the rule may be  active.  By  default,  the  rule  is  always  active  (i.e.,  ‘Always’).  If  you  have  defined Scheduler  rules  (see  Section  4.5.1  on  page  47),  then  these  are  also  displayed  as options. To define a new one Scheduler rule, select ‘User Defined’. 7.  Click OK to save the settings.  11.4  DSCP Mapping To understand Differentiated Services Code Point (DSCP), one must first be familiarized with the Differentiated Services (DiffServ) model. DiffServ is a Class of Service (CoS) model that enhances best-effort Internet services by differentiating traffic by users, service requirements and  other  criteria.  Packets  are  specifically  marked,  allowing  network  nodes  to  provide different  levels  of  service,  as  appropriate  for  voice  calls,  video  playback  or  other delay-sensitive  applications,  via  priority  queuing  or  bandwidth  allocation,  or  by  choosing dedicated routes for specific traffic flows. DiffServ defines a field in IP packet headers referred to as DSCP. Hosts or routers passing traffic  to  a  DiffServ-enabled  network  typically  mark  each  transmitted  packet  with  an appropriate  DSCP.  The  DSCP  markings  are  used  by  DiffServ  network  routers  to appropriately classify packets and to apply particular queue handling or scheduling behavior. MP252 provides a table of predefined DSCP values, which are mapped to 802.1p priority marking method. You can edit or delete any of the existing DSCP setting, as well as add new entries.
MP252 Multimedia Home Gateway  124  Document #: LTRT-23504   User's Manual   To view and set DSCP rules: 1.  From the menu bar, click the QoS menu link, and then click the DSCP Settings tab; the following screen appears: Figure 11-9: DSCP Settings Screen
MP252 Multimedia Home Gateway  11. Quality of Service Version 3.4.0  125  June 2011 2.  To edit an existing entry, click its corresponding Edit   icon. To add a new entry, click the New  icon. In both cases, the ’Edit DSCP Settings’ screen appears: Figure 11-10: Edit DSCP Settings  3.  In the ‘DSCP Value (hex)’ field, enter a hexadecimal number for the DSCP value. 4.  In the ‘802.1p Priority’ drop-down list, select an 802.1p priority level (each priority level is mapped to low, medium, or high priority). 5.  Click OK to save your settings.   Note:  The DSCP value overriding the priority of incoming packets with an unassigned value (priority 0, assumed to be a no-priority-set) is ‘0x0’. By default, this value is mapped to 802.1p priority level ‘0 -Low’, which means that such packets receive the lowest priority.
MP252 Multimedia Home Gateway  126  Document #: LTRT-23504   User's Manual  11.5  802.1p Mapping The IEEE 802.1p priority marking method is a standard for prioritizing network traffic at the data link/MAC sub-layer. 802.1p traffic is simply classified and sent to the destination, with no bandwidth reservations established. The 802.1p header includes a 3-bit prioritization field, which allows packets to be grouped into  eight  levels  of  priority.  MP252  maps  these  eight  levels  to  three  main  priorities:  high, medium and low. By default, values six and seven are mapped to high priority, which may be assigned to network-critical traffic. Values four and five are mapped to medium priority, which may be applied to delay-sensitive applications, such as interactive video and voice. Values three to zero are mapped to low priority, which may range from controlled-load applications down to ‘loss eligible’ traffic. The zero value is normally used for best-effort traffic. It is the default value for traffic with unassigned priority.  To set 802.1p rules: 1.  From the menu bar, click the QoS menu link, and then click the 802.1p Settings tab; the following screen appears: Figure 11-11: 802.1p Settings Screen  2.  The eight 802.1p values are pre-configured with the three priority levels: high, medium and low. You can change these levels for each of the eight values in their respective drop-down list. 3.  Click OK to save the settings.
MP252 Multimedia Home Gateway  11. Quality of Service Version 3.4.0  127  June 2011 11.6  Class Statistics MP252 provides accurate, real-time information on the traffic passing through your defined device classes. For example, the amount of packets sent, dropped, or delayed are just a few of the parameters that you can monitor per each shaping class.   Note:  Class  statistics  are  available  only  if  you  have  defined  at  least  one  class (otherwise no information is displayed).   To view your class statistics:  From the menu bar, click the QoS menu link, and then click the Class Statistics tab; the following screen appears: Figure 11-12: Class Statistics Screen
MP252 Multimedia Home Gateway  128  Document #: LTRT-23504   User's Manual  11.7  Configuring Basic VoIP QoS The 'Traffic Shaping' feature only ensures priority to calls that originate from inside MP252. When giving  VoIP  priority  over data, the bottleneck is effectively moved from the Cable / ADSL modem into MP252. To give priority to calls from the LAN, you must define a traffic priority rule (for SIP and RTP from the device on the LAN). This section recommends a minimal QoS configuration that ensures sufficient QoS for VoIP calls  when  MP252  is  connected  behind  a  broadband  (cable  or  DSL)  modem  with limited uplink bandwidth and the user runs bandwidth-consuming applications on the PC.  Since  most  modems  do  not  have  any  priority  mechanisms,  the  Tx  bandwidth  of  MP252 should be limited according to the modem’s uplink bandwidth. Since MP252 automatically gives higher priority to  VoIP  packets  (in its internal queues),  it  is not necessary to  define traffic shaping classes.  To configure basic QoS for VoIP: 1.  From the menu bar, click the QoS menu link, and then click the Traffic Shaping tab; the ‘Traffic Shaping’ screen appears. 2.  Click the New  icon; the screen 'Add Device Traffic Shaping' appears. 3.  From  the  'Device'  drop-down  list,  select  'Default  WAN  Device'  (or  your  PPTP/L2TP connection  you  have  created),  and  then  click  OK;  the  'Edit  Device  Traffic  Shaping' screen appears. 4.  Limit the Tx bandwidth (in the 'Tx Bandwidth' field) according to your modem’s uplink bandwidth. 5.  To prevent jitter in outgoing RTP packets, from the 'TCP Serialization' drop-down list, select 'Enabled', and then in the 'Maximum Delay' field, define the maximum allowed delay  (e.g.  20  milliseconds).  This  causes  long  TCP  packets  to  be  fragmented  when there is an active voice call.
MP252 Multimedia Home Gateway  11. Quality of Service Version 3.4.0  129  June 2011 Figure 11-13: Edit Device Traffic Shaping
MP252 Multimedia Home Gateway  130  Document #: LTRT-23504   User's Manual  6.  Click OK to apply the new definition. Figure 11-14: QoS - Edit Device Traffic Shaping - Submitting the Configuration  7.  Click OK again.
Version 3.4.0  131  July 2011 MP252 Multimedia Home Gateway  12. Network Connections  12  Network Connections This  chapter  provides  a  detailed  description  on  how  to  configure  the  following  network connections:  WAN – see Section 12.1 on page 131  LAN – see Section 12.2 on page 151  VLANs – see Section 12.4 on page 181  LAN-WAN Bridging – see Section 12.5 on page 188  12.1  Configuring a WAN Connection This section describes how to configure your WAN Internet (WAN Ethernet or WAN DSL) connection.  The WAN connection is configured in the ‘Network Connections’ screen, which provides a connection wizard that guides you through the network configuration stages.   Notes:   • To quickly configure a basic WAN connection, use the ‘Quick Setup’ screen, as described in Section 7.1 on page 63. • Before configuring the MP252 Internet connection, ensure that you have obtained relevant technical information on the Internet connection type from your Internet Telephony Service Provider (ITSP). For example, whether you are connected to the Internet using a static or dynamic IP address, or what protocols such as PPTP or PPPoE are used to communicate over the Internet. • MP252 automatically detects the physical WAN type (i.e., Ethernet or ADSL). To change the WAN type, you must restore MP252 to factory settings (see Section 18.8). • When connected to ADSL, the LAN4/WAN Ethernet port can be used for Ethernet LAN interface.  • When connected to an external modem through the Ethernet LAN4/WAN port and MP252 obtains an IP address, the ADSL interface is disabled. • If the Automatic Dialer feature is shipped preconfigured (i.e., enabled), then MP252 automatically detects the Internet dialer type and therefore, Internet connection configuration is unnecessary. However, it is recommended to manually configure the Internet connection after the Automatic Dialer process has completed (successfully or not). For more information on the Automatic Dialer feature, see Section 7.2 on page 72.   To start the Connection Wizard: 1.  From the menu bar, click the Network Connections menu; the 'Network Connections' screen appears. Figure 12-1: Network Connections Screen
MP252 Multimedia Home Gateway  132  Document #: LTRT-23504   User's Manual   1.  Click the New   icon; the ‘Connection Wizard’ screen appears: Figure 12-2: Connection Wizard Screen  2.  Select the required network connection group: • Internet DSL Connection: configures an Internet connection when using the MP252 integrated DSL modem (see Section 12.1.1 on page 133) • Internet Connection: configures an Internet connection when using an external DSL modem, Cable modem or Ethernet connection modem (see Section 12.1.2 on page 143) • Advanced Connection: configures the WAN connection types as well as network bridging and VLANs   Notes:   • For configuring VLANS, see Section 12.4 on page 181. • For configuring network bridging, see Section 12.5 on page 188.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  133  June 2011 12.1.1  WAN DSL Connections You can configure the following WAN DSL connection types:  Determine Protocol Type Automatically (PVC scan) – see Section 12.1.1.1 on page 133  Point-to-Point Protocol over Ethernet (PPPoE) – see Section 12.1.1.2 on page 134  Point-to-Point Protocol over ATM (PPPoA) – see Section 12.1.1.3 on page 136  Routed Ethernet Connection over ATM (Routed ETHoA) – see Section 12.1.1.4 on page 138  LAN-WAN Bridged Ethernet Connection over ATM (Bridged ETHoA) – see Section 12.1.1.4 on page 138  Classical IP over ATM (CLIP) – see Section 12.1.1.5 on page 140  Routed IP over ATM (IPoA) – see Section 12.1.1.6 on page 142 If  you  have  established  a  WAN  DSL  connection,  you  can  view  the  properties  of  this connection as described below.  To view the WAN DSL properties:  In the ‘Network Connections’ screen, click the Edit   icon corresponding to the WAN DSL network connection; the ‘WAN DSL Properties’ screen appears: Figure 12-3: WAN DSL Properties Screen  12.1.1.1  Determine Protocol Type Automatically (PVC Scan) The  Determine  Protocol  Type  Automatically  (PVC  Scan)  connection  type  automatically scans for a VPI/VCI pair, necessary when connecting to DSL. If such a pair is not found, your service provider should supply you with one.
MP252 Multimedia Home Gateway  134  Document #: LTRT-23504   User's Manual   To automatically scan for a VPI / VCI pair: 1.  In the 'Network Connections'  screen,  click the New   icon;  the  'Connection Wizard' screen appears. 2.  Select  the  Internet  DSL  Connection  option,  and  then  click  Next;  the  'Internet  DSL Connection' screen appears.   Note:  You  can  also  create  a  PVC  connection  using  the  Advanced  Connection option.  3.  Select the Determine Protocol Type Automatically (PVC Scan) option, and then click Next; the scan begins, refreshing the screen every few seconds to display the progress. Figure 12-4: Determine Protocol Type Automatically (PVC Scan) Screen  You can click the following links:  Full PVC Scan VPI 0-255, VCI 33-255: initiates a longer, more thorough scan, between VPI 0-255 and VCI 33-255.  Scan a Different VPI/VCI: scans for specific VPI/VCI pair. The 'Scan User Defined VPI/VCI' screen appears (as shown below). Enter the VPI/VCI pair you wish to scan and then click OK. Figure 12-5: Scan User Defined VPI/VCI Screen  12.1.1.2  PPPoE PPPoE relies on two widely accepted standards, PPP and Ethernet. PPPoE enables your home  network  PCs  that  communicate  on  an  Ethernet  System  network  to  exchange information with PCs on the Internet. PPPoE supports the protocol layers and authentication widely used in PPP and enables a point-to-point connection to be established in the normally multipoint architecture of Ethernet. A discovery process in PPPoE determines the Ethernet MAC address of the remote device to establish a session.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  135  June 2011  To create a PPPoE connection: 1.  In the 'Network Connections'  screen,  click the New   icon;  the  'Connection Wizard' screen appears. 2.  Select  the  Internet  DSL  Connection  option,  and  then  click  Next;  the  'Internet  DSL Connection' screen appears. 3.  Select the Point-to-Point Protocol over Ethernet (PPPoE) option, and then click Next; the 'DSL PVC Parameters Configuration' screen appears. Figure 12-6: DSL PVC Parameters Configuration Screen  4.  Select one of the following options: • Automatic PVC Scan: If you want to obtain the DSL PVC parameters automatically • Manual PVC Settings: If you do not want to obtain the DSL PVC parameters automatically  5.  Click Next; the 'Point-to-Point Protocol over Ethernet (PPPoE)' screen appears. Figure 12-7: Point-to-Point Protocol over Ethernet (PPPoE) Screen  6.  Enter your PPPoE login username and password (provided by your ITSP). 7.  If you selected the Manual PVC Settings option in the previous step, you also need to configure the following: • VPI and VCI pair of identifiers. • Encapsulation method - LLC, VCMux, or VCMux HDLC.
MP252 Multimedia Home Gateway  136  Document #: LTRT-23504   User's Manual  Asynchronous Transfer Mode (ATM) is a network technology based on transferring data in cells or packets of a fixed size. The cell used with ATM is relatively small compared to units used with other technologies. The small, constant cell size allows the transmission of video, audio, and computer data, assuring that no single type of data consumes the connection. ATM addressing consists of two identifiers that identify the virtual path (VPI) and the virtual connection (VCI). A virtual path consists of multiple virtual channels to the same endpoint. 8.  Click Next; the 'Connection Summary' screen appears: Figure 12-8: Connection Summary Screen  9.  Select  the  'Edit  the  Newly  Created  Connection'  check  box  if  you  want  to  perform additional configurations after clicking Finish.  10.  Click Finish to save the settings; the new PPPoE connection is added to the ‘Network Connections’ screen. 12.1.1.3  PPPoA PPPoA is a standard for incorporating the popular PPP protocol into a DSL connection that uses  ATM  as  its  networking  protocol.  From  the  PC,  IP  packets  travel  over  an  Ethernet connection  to  the  MP252,  which  encapsulates  the  PPP  protocol  to  the  IP  packets  and transports them to the service provider's DSLAM over ATM.  To create a PPPoA connection: 1.  In the 'Network Connections'  screen,  click the New   icon;  the  'Connection Wizard' screen appears. 2.  Select  the  Internet  DSL  Connection  option,  and  then  click  Next;  the  'Internet  DSL Connection' screen appears.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  137  June 2011 3.  Select the Point-to-Point Protocol over ATM (PPPoA) option, and then click Next; the 'DSL PVC Parameters Configuration' screen appears. Figure 12-9: DSL PVC Parameters Configuration Screen  4.  Select one of the following options: • Automatic PVC Scan: If you want to obtain the DSL PVC parameters automatically • Manual PVC Settings: If you do not want to obtain the DSL PVC parameters automatically  5.  Click Next; the 'Point-to-Point Protocol over ATM (PPPoA)' screen appears. Figure 12-10: Point-to-Point Protocol over ATM (PPPoA) Screen  6.  Enter your PPPoA login username and password (provided by your ITSP). 7.  If you selected the Manual PVC Settings option in the previous step, you also need to configure the following: • VPI and VCI pair of identifiers. • Encapsulation method - LLC, VCMux, or VCMux HDLC.
MP252 Multimedia Home Gateway  138  Document #: LTRT-23504   User's Manual  Asynchronous Transfer Mode (ATM) is a network technology based on transferring data in cells or packets of a fixed size. The cell used with ATM is relatively small compared to units used with other technologies. The small, constant cell size allows the transmission of video, audio, and computer data, assuring that no single type of data consumes the connection. ATM addressing consists of two identifiers that identify the virtual path (VPI) and the virtual connection (VCI). A virtual path consists of multiple virtual channels to the same endpoint. 8.  Click Next; the 'Connection Summary' screen appears: Figure 12-11: Connection Summary Screen  9.  Select  the  'Edit  the  Newly  Created  Connection'  check  box  if  you  want  to  perform additional configurations after clicking Finish.  10.  Click Finish to save the settings; the new PPPoA connection is added to the ‘Network Connections’ screen. 12.1.1.4  Routed ETHoA or Bridged ETHoA The  Ethernet  over ATM (ETHoA) connection  allows  transport  of  Ethernet frames on DSL connections.  When  creating  an  ETHoA  connection,  it  is  bridged  to  the  LAN.  You  must configure  a  dialup  connection  on  the  LAN  computer  with  your  ITSP’s  user  name  and password.   To create an ETHoA connection: 1.  In the 'Network Connections'  screen,  click the New   icon;  the  'Connection Wizard' screen appears. 2.  Select  the  Internet  DSL  Connection  option,  and  then  click  Next;  the  'Internet  DSL Connection' screen appears. 3.  Select one of the following options: • Routed Ethernet Connection over ATM (Routed ETHoA): a.  Click Next; the 'DSL PVC Parameters Configuration' screen appears.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  139  June 2011 Figure 12-12: DSL PVC Parameters Configuration Screen  b.  Select one of the following options:  Automatic PVC Scan: If you want to obtain the DSL PVC parameters automatically  Manual PVC Settings: If you do not want to obtain the DSL PVC parameters automatically  • LAN-WAN Bridged Ethernet Connection over ATM (Bridged ETHoA): a.  Click Next; the ‘Ethernet Connection over ATM (ETHoA)' screen appears. Figure 12-13: Ethernet Connection over ATM (ETHoA) Screen  4.  If  you  selected  the  Manual  PVC  Settings  option,  you  also  need  to  configure  the following: • VPI and VCI pair of identifiers. • Encapsulation method - LLC, VCMux, or VCMux HDLC. Asynchronous Transfer Mode (ATM) is a network technology based on transferring data in cells or packets of a fixed size. The cell used with ATM is relatively small compared to units used with other technologies. The small, constant cell size allows the transmission of video, audio, and computer data, assuring that no single type of data consumes the connection. ATM addressing consists of two identifiers that identify the virtual path (VPI) and the virtual connection (VCI). A virtual path consists of multiple virtual channels to the same endpoint..
MP252 Multimedia Home Gateway  140  Document #: LTRT-23504   User's Manual  5.  Click Next; the 'Connection Summary' screen appears: Figure 12-14: Connection Summary Screen  6.  Select  the  'Edit  the  Newly  Created  Connection'  check  box  if  you  want  to  perform additional configurations after clicking Finish.  7.  Click Finish to save the settings; the new ETHoA connection is added to the ‘Network Connections’ screen. 12.1.1.5  CLIP CLIP  is  a  standard  for  transmitting  IP  traffic  in  an  ATM  network.  IP  protocols  contain  IP addresses that have to be  converted  into ATM addresses, and Classical IP performs this conversion,  as  long  as  the  destination  is  within  the  same  subnet.  Classical  IP  does  not support routing between networks. The Classical IP-enabled driver in the end station sends out an ARP request to a Classical IP-enabled ARP server, which returns the ATM address.  To create a CLIP connection: 1.  In the 'Network Connections'  screen,  click the New   icon;  the  'Connection Wizard' screen appears. 2.  Select  the  Internet  DSL  Connection  option,  and  then  click  Next;  the  'Internet  DSL Connection' screen appears.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  141  June 2011 3.  Select the Classical IP over ATM (CLIP) option, and then click Next; the ‘Classical IP over ATM (CLIP)' screen appears. Figure 12-15: Classical IP over ATM (CLIP) Screen  4.  Enter the following information (provided by your ITSP): • IP Address • Subnet Mask • Default Gateway • Primary DNS Server • Secondary DNS Server • VPI and VCI pair of identifiers 5.  Click Next; the 'Connection Summary' screen appears. Figure 12-16: Connection Summary Screen  6.  Select  the  'Edit  the  Newly  Created  Connection'  check  box  if  you  want  to  perform additional configurations after clicking Finish.  7.  Click Finish to save the settings; the new CLIP connection is added to the ‘Network Connections’ list.
MP252 Multimedia Home Gateway  142  Document #: LTRT-23504   User's Manual  12.1.1.6  IPoA Routed IP over ATM (IPoA) is a standard for transmitting IP traffic in an ATM network.   To create an IPoA connection: 1.  In the 'Network Connections'  screen,  click the New   icon;  the  'Connection Wizard' screen appears. 2.  Select  the  Advanced  Connection  option,  and  then  click  Next;  the  ‘Advanced Connection' screen appears. 3.  Select the Routed IP over ATM (IPoA) option, and then click Next; the ‘Routed IP over ATM (IPoA)’ screen appears. Figure 12-17: Routed IP over ATM (IPoA) Screen  4.  Enter the IP address and networking parameters. 5.  Enter the following parameters: • VPI and VCI pair of identifiers. • Encapsulation method: LLC, VCMux, or VCMux HDLC. ATM is a network technology based on transferring data in cells or packets of a fixed size. The cell used with ATM is relatively small compared to units used with other technologies. The small, constant cell size allows the transmission of video, audio, and computer data, assuring that no single type of data consumes the connection. ATM addressing consists of two identifiers that identify the virtual path (VPI) and the virtual connection (VCI). A virtual path consists of multiple virtual channels to the same endpoint.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  143  June 2011 6.  Click Next; the 'Connection Summary' screen appears: Figure 12-18: Connection Summary Screen  7.  Select  the  'Edit  the  Newly  Created  Connection'  check  box  if  you  want  to  perform additional configurations after clicking Finish.  8.  Click  Finish  to  save  the  settings;  the  new  connection  is  added  to  the  ‘Network Connections’ screen.    12.1.2  WAN Ethernet Connections You can configure the following WAN Ethernet connection types:  MP252 connected to an external DSL modem and using PPPoE – see Section 12.1.2.1 on page 143  MP252 connected to an external Cable modem without authentication – see Section 12.1.2.2 on page 144  MP252 connected to an external Cable modem using PPTP – see Section 12.1.2.3 on page 145  MP252 connected to an external Cable modem using L2TP – see Section 12.1.2.4 on page 147  Automatic IP address using DHCP – see Section 12.1.2.5 on page 149  Manual IP address – see Section 12.1.2.6 on page 150 12.1.2.1  External DSL Modem using PPPoE The procedure below describes how to configure an Internet connection using PPPoE when MP252 is connected to an external DSL modem.  To create a PPPoE connection for external DSL modem: 1.  In the 'Network Connections'  screen,  click the New   icon;  the  'Connection Wizard' screen appears. 2.  Select the Internet Connection option, and then click Next; the ‘Internet Connection’ screen appears. 3.  Select  the  External  DSL  Modem  option,  and  then  click  Next;  the  'Point-To-Point Protocol over Ethernet (PPPoE)' screen appears. Figure 12-19: Point-to-Point Protocol over Ethernet (PPPoE) Screen
MP252 Multimedia Home Gateway  144  Document #: LTRT-23504   User's Manual   4.  Enter the login PPPoE username and password. 5.  Click Next; the screen 'Connection Summary' opens. Figure 12-20: PPPoE Connection Summary  6.  Select the 'Edit the Newly Created Connection' check box if you wish to be routed to the new connection's configuration screen after clicking Finish. 7.  Click Finish to save the settings; the new PPPoE connection is added to the ‘Network Connections’ screen. 12.1.2.2  External Cable Modem without Authentication The  procedure  below  describes  how  to  configure  an  Internet  connection  when  MP252  is connected  to  an  external  Cable  modem  and  the  ITSP  does  not  require  a  username  nor password to connect.  To create an Ethernet connection for external Cable modem: 1.  In the 'Network Connections'  screen,  click the New   icon;  the  'Connection Wizard' screen appears. 2.  Select the Internet Connection option, and then click Next; the ‘Internet Connection’ screen appears. 3.  Select  the  External  Cable  Modem  option,  and  then  click  Next;  the  ‘Internet  Cable Modem Connection' screen appears. Figure 12-21: Internet Cable Modem Connection Screen
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  145  June 2011  4.  Select the Ethernet Connection option; the 'Connection Summary' screen appears. Figure 12-22: Ethernet Connection Summary  5.  Select  the  'Edit  the  Connection'  check  box  if  you  wish  to  be  routed  to  the  new connection's configuration screen after clicking Finish. 6.  Click  Finish  to  save  the  settings;  the  new  connection  is  added  to  the  ‘Network Connections’ screen. 12.1.2.3  External Cable Modem with PPTP The  procedure  below  describes  how  to  configure  an  Internet  connection  when  MP252  is connected to an external Cable modem and using the PPTP protocol. Point-to-Point Tunneling Protocol (PPTP) is a protocol developed by Microsoft targeted at creating VPN connections over the Internet. This enables remote users to access MP252 via any  ISP  that  supports  PPTP  on  its  servers.  PPTP  encapsulates  network  traffic,  encrypts content using Microsoft's Point-to-Point Encryption (MPPE) protocol that is based on RC4, and routes using the generic routing encapsulation (GRE) protocol.  To create PPTP for external Cable modem: 1.  In the 'Network Connections'  screen,  click the New   icon;  the  'Connection Wizard' screen appears.
MP252 Multimedia Home Gateway  146  Document #: LTRT-23504   User's Manual  2.  Select the Internet Connection option, and then click Next; the ‘Internet Connection’ screen appears. 3.  Select  the  External  Cable  Modem  option,  and  then  click  Next;  the  ‘Internet  Cable Modem Connection' screen appears. Figure 12-23: Internet Cable Modem Connection Screen  4.  Select  the  Point-To-Point  Tunneling  Protocol  (PPTP)  with  Username  and Password  Authentication  option;  the  ‘Point-to-Point  Tunneling  Protocol  (PPTP)' screen appears. Figure 12-24: Point-to-Point Tunneling Protocol (PPTP) Screen  5.  Enter the PPTP server host name or IP address provided by your ITSP. 6.  Enter the login user name and password provided by the administrator of the network you are trying to access. 7.  From the ‘Internet Protocol’ drop-down list, select whether the IP address is obtained automatically or select ‘Use the Following IP Address’ and define the IP address.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  147  June 2011 8.  Click Next; the screen 'Connection Summary' opens. Figure 12-25: PPTP Connection Summary  9.  Select the 'Edit the Newly Created Connection' check box if you wish to be routed to the new connection's configuration screen after clicking Finish. 10.  Click  Finish  to  save  the  settings;  the  new  connection  is  added  to  the  ‘Network Connections’ screen. 12.1.2.4  External Cable Modem with L2TP You  can  connect  MP252  to  the  Internet  using  an  external  cable  modem  where  the connection is L2TP. L2TP is an extension to the PPP protocol, enabling MP252 to create VPN  connections.  Derived  from  Microsoft's  PPTP  and  Cisco's  Layer  2  Forwarding  (L2F) technology, L2TP encapsulates PPP frames into IP packets either at the remote user's PC or at an ISP  that  has  an  L2TP  Remote  Access  Concentrator (LAC).  The  LAC  transmits  the L2TP packets over the network to the L2TP Network Server (LNS) at the corporate side  To create L2RP for external Cable modem: 1.  In the 'Network Connections'  screen,  click the New   icon;  the  'Connection Wizard' screen appears. 2.  Select the Internet Connection option, and then click Next; the ‘Internet Connection’ screen appears. 3.  Select  the  External  Cable  Modem  option,  and  then  click  Next;  the  ‘Internet  Cable Modem Connection' screen appears. Figure 12-26: Internet Cable Modem Connection Screen
MP252 Multimedia Home Gateway  148  Document #: LTRT-23504   User's Manual   4.  Select  the  Layer  2  Tunneling  Protocol  (L2TP)  with  Username  and  Password Authentication option; the 'Layer 2 Tunneling Protocol (L2TP)' screen appears. Figure 12-27: Layer 2 Tunneling Protocol (L2TP) Screen  5.  Enter the L2TP server host name or IP address provided by your ITSP. 6.  Enter the login user name and password provided by the administrator of the network you are trying to access. 7.  From the ‘Internet Protocol’ drop-down list, select whether the IP address is obtained automatically or select ‘Use the Following IP Address’ and define the IP address.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  149  June 2011 8.  Click Next; the screen 'Connection Summary' opens. Figure 12-28: L2TP Connection Summary  9.  Select the 'Edit the Newly Created Connection' check box if you wish to be routed to the new connection's configuration screen after clicking Finish. 10.  Click  Finish  to  save  the  settings;  the  new  connection  is  added  to  the  ‘Network Connections’ screen. 12.1.2.5  DHCP The Dynamic Host Configuration Protocol (DHCP) connection for the physical WAN Ethernet, allows  MP252  to  obtain  an  IP  address  automatically  from  the  service  provider  when connecting to the Internet.  To create a DHCP connection: 1.  In the 'Network Connections'  screen,  click the New   icon;  the  'Connection Wizard' screen appears. 2.  Select the Internet Connection option, and then click Next; the ‘Internet Connection’ screen appears. 3.  Select the Ethernet Connection option, and then click Next; the ‘Ethernet Connection' screen appears. Figure 12-29: Ethernet Connection Screen
MP252 Multimedia Home Gateway  150  Document #: LTRT-23504   User's Manual  4.  Select  the  Dynamic  Negotiation  (DHCP)  option,  and  then  click  Next;  the  screen 'Connection Summary' opens. Figure 12-30: DHCP Connection Summary  5.  Select  the  'Edit  the  Connection'  check  box  if  you  wish  to  be  routed  to  the  new connection's configuration screen after clicking Finish. 6.  Click  Finish  to  save  the  settings;  the  new  connection  is  added  to  the  ‘Network Connections’ screen. 12.1.2.6  Manual IP Address The Manual IP Address feature is used to manually configure the networking IP addresses when connecting to the Internet.  To manually configure the IP address: 1.  In the 'Network Connections'  screen,  click the New   icon;  the  'Connection Wizard' screen appears. 2.  Select the Internet Connection option, and then click Next; the ‘Internet Connection’ screen appears. 3.  Select the Ethernet Connection option, and then click Next; the ‘Ethernet Connection' screen appears. Figure 12-31: Ethernet Connection Screen  4.  Select the Manual IP Address Configuration option, and then click Next; the screen ‘Manual IP Address Configuration’ opens. Figure 12-32: Manual IP Address Configuration Screen
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  151  June 2011  5.  Configure the IP address and other network parameters, and then click Next; Select the Manual  IP  Address  Configuration  option,  and  then  click  Next;  the  'Connection Summary' screen appears. Figure 12-33: Manual IP Connection Summary  6.  Select  the  'Edit  the  Connection'  check  box  if  you  wish  to  be  routed  to  the  new connection's configuration screen after clicking Finish. 7.  Click  Finish  to  save  the  settings;  the  new  connection  is  added  to  the  ‘Network Connections’ screen.  12.2  LAN Connection This section describes how to configure the following MP252 LAN connections:  Wireless LAN   LAN hardware Ethernet switch 12.2.1  Wireless LAN This  section  describes  how  to  configure  the  MP252  wireless  network.  This  network  is configured  in  the  ‘Network  Connections’ screen,  which  provides  a  connection  wizard that guides you through the network configuration stages.
MP252 Multimedia Home Gateway  152  Document #: LTRT-23504   User's Manual   Note:  To establish a wireless network connection between a PC and the MP252, you must also configure the PC for wireless connectivity (see Section 6.2 on page 61).   To configure the Wireless LAN: 1.  From the menu bar, click the Network Connections menu; the 'Network Connections' screen appears. Figure 12-34: Network Connections Screen Displaying LAN Wireless Interface  The 'Status' column corresponding to the wireless LAN network (‘LAN Wireless 802.11n Access Point’) displays whether the wireless connection is enabled or disabled. 2.  Click  the  Edit   icon  corresponding  to  the  'LAN  Wireless  802.11n  Access  Point' network  name; the  'LAN  Wireless 802.11n Access  Point  Properties'  screen appears, displaying the contents of the General tab. Figure 12-35: LAN Wireless 802.11n Access Point Properties (General Tab) Screen
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  153  June 2011  3.  In the ‘Name’ field, enter an arbitrary name for your wireless network. The  General  tab  also  allows  you  to  enable  or  disable  the  wireless  connection  (for  more information, see Section 12.2.1.1 on page 153). In addition, it displays various statistics such as  download  and  upload  rate,  and  whether  encryption  is  enabled  or  disabled.  These parameters can be configured using the other tabs, as described in the subsequent sections. 12.2.1.1  Enabling and Disabling the Wireless Network Once you have configured your MP252 wireless network connection,  you can enable and disable it, as required.   To enable or disable the wireless network, do one of the following:  Press the WiFi button located on the front panel of the MP252 (see Section 3.1.1 on page 27)   In the ‘LAN Wireless 802.11n Access Point Properties (General Tab)’ screen (see Section Figure 12-35 on page 152), click the Enable or Disable button.   12.2.1.2  Configuring Wireless Properties under the Settings Tab The  procedure  below  describes  the  configurations  under  the  Settings  tab  of  the  ‘LAN Wireless 802.11 Access Point Properties’ screen.    Note:  Since  your  MP252  wireless  network  is  configured  to  operate  with  default settings, it is recommended to leave the settings in this screen at their default values.
MP252 Multimedia Home Gateway  154  Document #: LTRT-23504   User's Manual   To configure the wireless parameters under the Settings tab: 1.  Click the Settings tab. Figure 12-36: LAN Wireless 802.11 Access Point Properties (Settings Tab) Screen  The  ‘Underlying Connection’ read-only field  displays  the  underlying  connection  upon which the wireless LAN is defined. 2.  From the ‘Scheduler’ drop-down list, select the Scheduler rule during which this network connection is active. To ensure that the network is always active, select ‘Always’. To define Scheduler rules, see Section 4.5.1 on page 47. 3.  From the ‘Network’ drop-down list, select the network (LAN, WAN, or DMZ) to which this new network is related. 4.  In the ‘Physical Address’ field, define the physical address of the network card used for your network. 5.  From  the  ‘MTU’ drop-down  list,  select  the  largest  packet  size  permitted  for  Internet transmission (i.e., MTU / Maximum Transmission Unit). By default, it is set to 'Automatic', whereby MP252 selects the best MTU for your Internet connection. If you modify this field, ensure that the range is 1200 to 1500. 6.  Click OK to save your settings.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  155  June 2011 12.2.1.3  Configuring Wireless Properties under the Wireless Tab The  procedure  below  describes  the  configurations  under  the  Wireless  tab  of  the  ‘LAN Wireless 802.11 Access Point Properties’ screen.   To configure the wireless parameters under the Wireless tab: 1.  Click the Wireless tab. Figure 12-37: LAN Wireless 802.11 Access Point Properties (Wireless Tab) Screen  2.  Refer to the subsequent sections for a description of the parameters in this screen.
MP252 Multimedia Home Gateway  156  Document #: LTRT-23504   User's Manual  12.2.1.3.1 Wireless Network Group This group in the Wireless tab screen configures the basic wireless access point settings. Figure 12-38: Wireless Network Group in Wireless Tab Screen  The table below describes the parameters in this group: Table 12-1: Wireless Tab – Basic Wireless Access Point Parameters Description Parameter  Description Wireless Network (SSID) Enter the name of the wireless network. This name is needed for a wireless device to attach to your wireless network (see Section 6.2 on page 61). Note: The default wireless (Wi-Fi) network name (SSID) is “MP252” (and is unsecured). SSID Broadcast  Select this check box to enable the SSID's broadcast. SSID broadcast is used to hide the name of the AP (SSID) from clients. 802.11 Mode Select the wireless communication standard that is compatible with your client's wireless card: 802.11b/g Mixed, 802.11g Only, 802.11b Only, 802.11b/g/n, 802.11g/n, 802.11n Only. Country Region  Select the Wi-Fi country region for allowing only permitted channels (frequencies) for the region.  Note: This parameter determines the available channel options listed in the ‘Channel’ parameter. Channel   Select the appropriate channel to correspond with your network settings. All devices in your wireless network must broadcast on different channels to function correctly.  Note: The available channels depend on the country region (configured by the ‘Country Region’ parameter) in which you are operating MP252. For example, if you selected ‘FCC’ as the country region, the available channels from which you can select conform to the U.S.A. Regulatory Authority FCC (Federal Communications Commission). Channel Width Mode Select the available transmit data rate of the wireless network: 20 MHz only or 20/40 MHz dynamic. Virtual APS Virtual APS You can set up multiple virtual wireless LAN's on MP252. Such virtual wireless LANs are referred to as "Virtual APs" (virtual access points). For a detailed description on configuring Virtual APS, see 'Virtual Access Points' on page 162.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  157  June 2011 12.2.1.3.2 Configuring MAC Filtering The  procedure  below  describes  how  to  filter  wireless  users  according  to  their  MAC addresses. You can define as list of MAC addresses and for the entire list, either allow or deny access.  To define MAC filtering: 1.  From the 'MAC Filtering Mode' drop-down list, select either 'Allow' or 'Deny' (or ‘Disable’ if you do not want use MAC filtering). 2.  In the MAC Filtering Table, click the New MAC Address   icon; the 'MAC Filtering Settings' screen appears. Figure 12-39: MAC Filtering Settings Screen  3.  In the 'MAC Address' field, enter the MAC address to be filtered. 4.  Click OK; the MAC address is listed in the MAC Filtering table. Figure 12-40: MAC Address Added to MAC Filtering Table   12.2.1.3.3 Enabling Wi-Fi Protected Setup (WPS) The procedure below describes how to enable WPS. WPS is a method for simplifying the security setup and management of wireless networks. This feature is disabled by default. By enabling  it,  you  can  control  the  setup  of  your  wireless  security,  which  is  defined  in  the Security group.   To enable WPS:  Under the WPS group, select ‘Enabled’; an access point pin code is automatically generated and displayed. Figure 12-41: WPS Group in Wireless Tab Screen  The  access  point  pin  code  is  an  eight  digit  pin  number,  provided  by  the  wireless  client's software. When attempting to connect a wireless client to MP252, you must be aware of its setup method.
MP252 Multimedia Home Gateway  158  Document #: LTRT-23504   User's Manual  12.2.1.3.4 Configuring Wireless Security The procedure below describes how to configure wireless security.   Note:  WPS supports only the WPA security protocol. Therefore, when enabled (see Section 12.2.1.3.3 on page 157), only the WPA protocols are available (in the ‘Security’ drop-down list described below).   To define wireless security: 1.  From  the  'Security'  drop-down  list,  select  the  type  of  security  protocol;  the  screen refreshes, displaying parameters relevant to the selected protocol: • None: disables security on your wireless connection. • WPA: WPA is a data encryption method for 802.11 wireless LANs. Figure 12-42: Configuring WPA Security  Configure the following fields: b.  Authentication Method: select the required authentication method ('Pre-Shared Key' and '802.1x').  c.  Pre-Shared Key: this field appears only if you selected ‘Pre-Shared Key’ in the ‘Authentication Method field. Enter your encryption key (using either an ASCII or a Hex value), by selecting the value type in the drop-down list provided. d.  Encryption Algorithm: select 'TKIP' (Temporal Key Integrity Protocol), 'AES' (Advanced Encryption Standard) or both ('TKIP and AES') for the encryption algorithm. e.  Group Key Update Interval: select this check box, and then enter the time interval in seconds for updating a group key. f.  Inter Client Privacy: select this check box to prevent communication between the wireless network clients using the same access point. When enable, clients are unable to view and access each other's shared directories.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  159  June 2011 • WPA2: WPA2 is an enhanced version of WPA, and defines the 802.11i protocol. Figure 12-43: Configuring WPA2 Security  a.  Authentication Method: select the authentication method ('Pre-Shared Key' and '802.1x'). b.  Pre-Shared Key: this field appears only if you selected this authentication method. Enter your encryption key in either an ASCII or a Hex value (by selecting the value type in the drop-down list provided). c.  Pre Authentication: This field appears only when selecting the 802.1x authentication method. Select this option to enable MP252 to accept RADIUS authentication requests from computers connected to other access points. This enables roaming from one wireless network to another. d.  PMK Cache Period: This field appears only when selecting the 802.1x authentication method. This field defines the number of minutes before deletion (and renewal) of the Pairwise Master Key used for authentication. e.  Encryption Algorithm: encryption algorithm for WPA2 is the Advanced Encryption Standard (AES). f.  Group Key Update Interval: Defines the time interval in seconds for updating a group key. g.  Inter Client Privacy: select the check box to prevent communication between the wireless network clients using the same access point. Clients will not be able to view and access each other's shared directories. • WPA and WPA2: WPA and WPA2 is a mixed data encryption method. For a description of these fields, see WPA and WPA2 above.
MP252 Multimedia Home Gateway  160  Document #: LTRT-23504   User's Manual  • Non-802.1x WEP: data encryption method utilizing a statically defined key for wireless clients that do not use 802.1x for authentication, but use WEP for encryption. You may define up to four keys, but use only one at a time.  Figure 12-44: Configuring Non-WEP Security  a.  Inter Client Privacy: select this check box to prevent communication between the wireless network clients using the same access point. Clients will not be able to view and access each other's shared directories. b.  WEP Keys table:  Active: select the encryption key to be activated.  Encryption Key: enter the encryption key until the entire field is filled. The key cannot be shorter than the field's length.  Entry Method: select the character type for the key: ASCII or HEX.  Key Length: select the key length in bits: 40 or 104 bits.   Note:  The encryption key must be defined in the wireless Windows client as well. This is done in the Connection Properties Configuration window (your encryption key is entered in both the 'Network key' and 'Confirm network key' fields, as shown in the figure below.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  161  June 2011 Figure 12-45: Configuring Encryption Key in Windows Wireless Client  • Web Authentication: wireless clients attempting to connect to the wireless connection (Internet) receive a Web Authentication screen, requiring the clients to authenticate themselves before they are able to use the connection. To add a Web client user, click the Click here to add a user link. MP252 keeps record of authenticated clients. To clear this list, click the Clean Mac List button. Clients need to re-authenticate themselves to use the wireless connection. Figure 12-46: Configuring Authentication Only Security
MP252 Multimedia Home Gateway  162  Document #: LTRT-23504   User's Manual  12.2.1.3.5 Configuring Transmission Properties The procedure below describes how to configure wireless transmission properties.  To configure the transmission properties: 1.  Access the Wireless tab screen. Figure 12-47: Transmission Parameters in Wireless Tab Screen  2.  From the ‘CTS Protection Mode’ drop-down list, select whether you want to enable or disable  this  feature  (‘Always'  to  enable  CTS  or  'Auto'  to  have  MP252  automatically decide whether or not to use this feature). CTS Protection Mode boosts your MP252's ability  to  intercept  802.11g  and  802.11b  transmissions.  Conversely,  CTS  Protection Mode  decreases  performance.  Leave  this  feature  disabled  unless  you  encounter severe communication difficulties between MP252 and 802.11g products.  3.  In the ‘Beacon Interval’ field, enter how often the beacon packet is sent. A beacon is a packet broadcast by MP252 to synchronize the wireless network. 4.  In  the  ‘DTIM  Interval’ field,  enter  the  Delivery  Traffic  Indication  Message  (DTIM) countdown  value  that  informs  wireless  clients  of  the  next  opportunity  to  receive multicast and broadcast messages. This value ranges between 1 and 16384. 5.  In  the  ‘Fragmentation  Threshold’  field,  enter  the  packet  size  threshold  above  which packets  are  fragmented  into  multiple  packets.  Try  to  increase  the  fragmentation threshold  if  you  encounter  high packet  error  rates.  Do  not  set  the  threshold too low, since this can result in reduced networking performance. 6.  In the ‘RTS Threshold’ field, enter the packet threshold size below which the Request to Send  (RTS)  /  Clear  to  Send  (CTS)  mechanism  are  not  active.  MP252  sends  RTS packets to the wireless client to negotiate the dispatching of data. The wireless client responds  with  a  CTS  packet,  signaling  that  transmission  can  commence.  If  you encounter inconsistent data flow, try a slight reduction in the RTS threshold size.   12.2.1.3.6 Adding Virtual Access Points You can set up multiple virtual wireless LAN's on MP252, limited. Such virtual wireless LANs are referred to as "Virtual APs" (virtual access points). In the Wireless tab's screen, under the section 'Virtual APs' section, MP252's physical wireless access point is displayed first, and on top of which virtual connections may be created. Figure 12-48: Virtual APs Table
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  163  June 2011  To create a virtual connection: 1.  In  the  Wireless  tab's  screen,  under  the  section  'Virtual  APs'  section,  click  the  New Virtual AP link; the screen refreshes, displaying the new virtual connection. Figure 12-49: New Virtual AP  The new virtual connection is also added to the list of connections in the 'Network Connections' screen (Network Connections menu), and is configurable like any other connection (by clicking its corresponding Edit  icon). A useful implementation of Virtual AP's is to define a virtual connection with a different SSID value to dedicate it for guest access. Through this connection, guests are able to access the WAN, but  they are denied access  to other  wireless  LANs  provided by MP252.  To  do so, perform the following:
MP252 Multimedia Home Gateway  164  Document #: LTRT-23504   User's Manual  2.  Set  a  firewall  rule  that  blocks  access  to  all  other  MP252  LANs  (Security  menu  > Advanced Filtering tab). Figure 12-50: Firewall Blocking Access to All Other LANs  3.  In the Wireless tab's screen, click the Edit  icon corresponding to the Virtual AP to open  the  virtual  connection's  'LAN  Wireless  802.11n  Access  Point  -  Virtual  AP Properties' screen: a.  In the 'Internet Protocol' section under the 'Settings' sub-tab, enter an IP address for the connection by selecting 'Use the Following IP Address'.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  165  June 2011 b.  In the 'IP Address Distribution' section, select 'DHCP Server' and enter the IP range from which IP addresses will be granted to wireless guests. c.  Click OK. Figure 12-51: Example Virtual AP  After performing this procedure, you have secured all of your wireless connections. A guest is only able to connect to the "Guests" wireless LAN, from which only the WAN access is granted.
MP252 Multimedia Home Gateway  166  Document #: LTRT-23504   User's Manual  12.2.1.4  Advanced Tab The Advanced tab allows you to enable your firewall on your wireless network connection as well as define alias names. Figure 12-52: Wireless Advanced Tab    Internet Connection Firewall: Your MP252's firewall helps protect your computer by preventing unauthorized users from gaining access to it through a network such as the Internet. The firewall can be activated per network connection. To enable the firewall on this network connection, select the 'Enabled' check box.   Internet Connection Fastpath: Select this check box to utilize the Fastpath algorithm for enhancing packet flow, resulting in faster communication between the LAN and the WAN  Additional IP Addresses: You can add alias names (additional IP addresses) to MP252 by clicking the New IP Address link. This enables you to access MP252 using these aliases in addition to the IP address (e.g., 192.168.2.1) and http://mp252.home. 12.2.2  LAN Hardware Ethernet Switch The LAN Hardware Ethernet Switch interface represents the physical ports on MP252.  To configure the LAN hardware Ethernet switch: 4.  From the menu bar, click the Network Connections menu; the 'Network Connections' screen appears.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  167  June 2011 Figure 12-53: Network Connections Screen  5.  Click the LAN Hardware Ethernet Switch link; the LAN Hardware Ethernet Switch  Properties screen appears: Figure 12-54: LAN Hardware Ethernet Switch Screen   6.  The General tab allows you to assign a name to this connection as well as disable or enable the connection, by clicking the Enable or Disable buttons respectively. 12.2.2.1  Settings Tab The Settings tab screen is displayed below: Figure 12-55: LAN Hardware Ethernet Switch Screen – Settings Tab
MP252 Multimedia Home Gateway  168  Document #: LTRT-23504   User's Manual   The Settings tab provides you with the following parameters  Schedule: By default, the connection is always active. However, you can configure scheduler rules to define time segments during which the connection is active. Once a scheduler rule(s) is defined, the drop-down list allows you to choose between the available rules.  Network: Select whether the parameters you are configuring relate to a WAN, LAN or DMZ connection.   Physical Address: The physical address of the network card used for your network. Some cards allow you to change this address.  MTU: Maximum Transmission Unit. It specifies the largest packet size permitted for Internet transmission. In the default setting, Automatic, the gateway selects the best MTU for your Internet connection. Select 'Automatic by DHCP' to have the DHCP determine the MTU. In case you select 'Manual' it is recommended to enter a value in the 1200 to 1500 range. 12.2.2.2  Switch Tab The Switch tab screen is displayed below: Figure 12-56: LAN Hardware Ethernet Switch Screen – Switch Tab
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  169  June 2011  The Switch tab screen displays the hardware switch ports properties. The switch ports are physical sockets on the MP252 to which different cables connect. The table in this screen consists of a list of all available ports, their status, and the VLANs of which they are members. Untagged  packets (packets  without  a  VLAN tag) that arrive at a port are tagged  with the VLAN number that appears under the Port VLAN Identifier (‘PVID’) column.  To edit the configuration of a port: 1.  Click a connected port's Edit  icon. Figure 12-57: Port Settings Screen  2.  Ingress (incoming packets):  a.  From the ‘Ingress Policy’ drop-down list, select whether or not to tag incoming packets with the port's VLAN header.  b.  If the 'Tagged (Add VLAN Header)' option is selected, in the ‘Default VLAN ID’ field, enter the port's VLAN identifier. 3.  Egress (outgoing packets): a.  Click the New   icon; the Add Port to a VLAN screen appears.
MP252 Multimedia Home Gateway  170  Document #: LTRT-23504   User's Manual   b.  In the ‘VLAN ID’ field, enter the VLAN ID for this port. c.  From the ‘Egress Policy’ drop-down list, select whether or not to remove the VLAN tag from outgoing packets. 12.2.2.3  Advanced Tab The Advanced tab screen is displayed below: Figure 12-58: LAN Hardware Ethernet Switch Screen – Advanced Tab   Internet Connection Firewall: Your gateway's firewall helps protect your computer by preventing unauthorized users from gaining access to it through a network such as the Internet. The firewall can be activated per network connection. To enable the firewall on this network connection, select the 'Enabled' check box.   Internet Connection Fastpath: Select this check box to utilize the Fastpath algorithm for enhancing packet flow, resulting in faster communication between the LAN and the WAN. By default, this feature is enabled.  Additional IP Addresses: You can add alias names (additional IP addresses) to the gateway by clicking the 'New IP Address' link. This enables you to access the gateway using these aliases in addition to the IP address (e.g., 192.168.2.1) and the http://mp252.home. 12.3  Editing Network Connections and Advanced Configuration You can edit created network connections listed in the 'Network Connections' screen. Editing network connections also allows you to perform additional configuration which is unavailable when first creating the network connection.  As many of the editing screens are similar between the different network connections, this section only provides a general description of the screens provided when the connection’s Edit  icon is clicked.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  171  June 2011 12.3.1  General Tab The General tab displays mainly read-only properties of the connection.  The main actions that can be done in this tab screen includes the following:  Modifying the connection name – in the ‘Name’ field  Enabling and disabling the connection, by clicking the Enable or Disable button respectively Below  shows  an  example  of  a  General  tab  screen,  displaying  the  ‘Name’  field  and  the Disable button. Figure 12-59: Editing Connection - General Tab (For Example, WAN Ethernet)   12.3.2  Settings Tab The  top part of the Settings  tab screen  displays general communication  parameters.  It  is recommended not to change the default values in this screen unless you are familiar with the networking  concepts  they represent.  Since  your  MP252  is  configured  to  operate  with the default values, no parameter modification is necessary.  Figure 12-60: Editing Connection - Settings Tab (For Example, WAN Ethernet)
MP252 Multimedia Home Gateway  172  Document #: LTRT-23504   User's Manual   The Settings tab screen allows you to configure the following: Table 12-2: Settings Tab - Parameter Descriptions Parameter  Description Schedule  You can select a Scheduler rule that defines time segments during which the connection is active. To configure scheduler rules, see Section 4.5.1 on page 47. Network  Select whether the connection relates to a LAN, WAN, or DMZ connection. Every network connection can be configured as one of these types. This provides flexibility and increased functionality. For example, you may define that a LAN Ethernet connection on MP252 operates as a WAN network. This means that all hosts in this LAN will be referred to as WAN computers, both by computers outside MP252 and by MP252 itself. WAN and firewall rules may be applied, such as on any other WAN network.  Another example, is that a network connection can be defined as a DMZ (Demilitarized) network. Although the network is physically inside MP252, it will function as an unsecured, independent network, for which MP252 merely acts as a router. Physical Address  The physical address of the network card used for your network.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  173  June 2011 Parameter  Description MTU Maximum Transmission Unit (MTU) species the largest packet size permitted for Internet transmission. In the default setting, ‘Automatic’, the MP252 selects the best MTU for your Internet connection. Select 'Automatic by DHCP' to have the DHCP determine the MTU. In case you change to ‘Manual’, you can enter the largest packet size, you should leave this value in the 1200 to 1500 range. Internet Protocol  For a description, see Section 12.3.2.1.  12.3.2.1  Internet Protocol Settings The 'Internet Protocol' group defines the Internet Protocol options. Select one of the following Internet Protocol options from the 'Internet Protocol' drop-down list:  No IP Address  Obtain an IP Address Automatically: Your WAN connection is configured by default to act as a DHCP client. You should keep this configuration in case your service provider supports DHCP, or if you are connecting using a dynamic IP address.  Figure 12-61: Automatically Obtaining an IP Address  The server that assigns the MP252 with an IP address also assigns a subnet mask. You can override the dynamically assigned subnet mask by selecting the 'Override Subnet Mask' check box and specifying your own mask instead.  You can click the Release button to release the current leased IP address. Once the address has been released, the button text changes to 'Renew'. Use the Renew button to renew the leased IP address.  For defining DNS and DHCP servers, see sections 12.3.2.1.1 and 12.3.2.1.2 respectively.
MP252 Multimedia Home Gateway  174  Document #: LTRT-23504   User's Manual   Use the Following IP Address: Your WAN connection can be configured using a permanent (static) IP address. Your service provider should provide you with this IP address, subnet mask and the default MP252 IP address.  For defining DNS and DHCP servers, see sections 12.3.2.1.1 and 12.3.2.1.2 respectively. 12.3.2.1.1 DNS Server Domain  Name  System  (DNS)  is  the  method  by  which  websites  or  domain  names  are translated  into  IP  addresses.  You  can  configure  the  connection  to  automatically  obtain  a DNS  server  address,  or  specify  such  an  address  manually,  according  to  the  information provided by your ISP. From the 'DNS Server' drop-down list, you can select one of the following methods:  Obtain DNS Server Address Automatically: the connection automatically obtains a DNS server address.  Use the Following DNS Server Addresses: manually configure DNS server - specify up to two different DNS server addresses - one primary, the other secondary: Figure 12-62: Manually Defining DNS Server   No DNS Server: select this if there is no DNS server.  12.3.2.1.2 IP Address Distribution The  'IP  Address  Distribution'  section  allows  you  to  configure  the  device's  Dynamic  Host Configuration  Protocol  (DHCP)  server  parameters.  The  DHCP  automatically  assigns  IP addresses to network PCs. If you enable this feature, make sure that you also configure your network PCs as DHCP clients.  Select one of the following options from the 'IP Address Distribution' drop-down list:  Disabled: Select this option to statically assign IP addresses to your network computers.  DHCP Server: Enables DHCP server:
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  175  June 2011 Figure 12-63: IP Address Distribution - DHCP Server  • Start IP Address: The first IP address that may be assigned to a LAN host. Since the device's default IP address is 192.168.2.1, this address must be 192.168.2.2 or greater. • End IP Address: The last IP address in the range that can be used to automatically assign IP addresses to LAN hosts. • Subnet Mask: A mask used to determine to what subnet an IP address belongs. • Lease Time In Minutes: Each device is assigned an IP address by the DHCP server for this amount of time when it connects to the network. When the lease expires, the server determines if the computer has disconnected from the network. If it has, the server may reassign this IP address to a newly-connected computer. This feature ensures that IP addresses that are not in use become available for other computers on the network. • Provide Host Name If Not Specified by Client: If the DHCP client does not have a host name, the device automatically assigns one for him  DHCP Relay: The MP252 can act as a DHCP relay in case you would like to dynamically assign IP addresses from a DHCP server other than MP252's DHCP server. Note that when selecting this option, you must also change the device's WAN to work in routing mode.  Figure 12-64: IP Address Distribution - DHCP Relay  1.  Click the New  icon; the 'DHCP Relay Server Address' screen appears: Figure 12-65: DHCP Relay Server Address  2.  Specify the IP address of the DHCP server, and then click OK to save the settings.
MP252 Multimedia Home Gateway  176  Document #: LTRT-23504   User's Manual  12.3.3  Routing Tab You  can  choose  to  setup  your  MP252  to  use  static  or  dynamic  routing.  Dynamic  routing automatically adjusts how packets travel on the network, whereas static routing specifies a fixed routing path to neighboring destinations. Figure 12-66: Editing Connection - Routing Tab (For Example, WAN Ethernet)  Table 12-3: Routing Parameters Parameter  Description Select one of the following Routing modes: Route  Use route mode if you want your MP252 to function as a router between two networks. Routing Mode NAPT  Network Address and Port Translation (NAPT) refers to network address translation involving the mapping of port numbers, allowing multiple machines to share a single IP address. Use NAPT if your LAN encompasses multiple devices, a topology that necessitates port translation in addition to address translation. Device Metric The device metric is a value used by the MP252 to determine whether one route is superior to another, considering parameters such as bandwidth, delay, and more. Default Route  Select this check box to define this device as a the default route. Multicast - IGMP Proxy Default IGMP proxy enables the system to issue IGMP host messages on behalf of hosts that the system discovered through standard IGMP interfaces. IGMP proxy enables the routing of multicast packets according to the IGMP requests of LAN devices asking to join multicast groups. Routing Table  Allows you to add or modify routes when this device is active. Click the New icon to add a route (as shown in the figure below) or edit existing routes.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  177  June 2011 Figure 12-67: Route Settings Screen   Name: Select the network device.  Destination: destination host, subnet address, network address, or default route. The destination for a default route is 0.0.0.0.  Netmask: Netmask used in conjunction with the destination to determine when a route is used.  Gateway: Enter the MP252's IP address.  Metric: A measurement of the preference of a route. Typically, the lowest metric is the most preferred route. If multiple routes exist to a given destination network, the route with the lowest metric is used.: 12.3.4  Wireless Tab For a description of the Wireless tab, see Section Error! Reference source not found. on page Error! Bookmark not defined..   Note:  This tab is applicable only to LAN Wireless connections.  12.3.5  Switch Tab For a description of the Switch tab, see Section 12.2.2.2 on page 168.   Note:  This tab is applicable only to LAN Hardware Ethernet Switch connections.  12.3.6  Bridging Tab For a description of the Bridging tab, see Section 12.5.1 on page 190.
MP252 Multimedia Home Gateway  178  Document #: LTRT-23504   User's Manual    Note:  This tab is applicable only to LAN-WAN Bridging connections.  12.3.7  PPP Tab The PPT tab displays the PPPoE settings.   Note:  This tab is applicable only to PPP connections.  Figure 12-68: Editing Connection - PPP Tab  Table 12-4: PPP Tab Parameter Descriptions Parameter  Description On Demand Use PPP on demand to initiate the PPP session only when packets are actually sent over the Internet.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  179  June 2011 Parameter  Description Idle Time Before Hanging Up Specify the amount of idle time (during which no data is sent or received) that should elapse before the gateway disconnects the PPP connection. Note: This parameter appears only if On Demand is selected. Time Between Reconnect Attempts Specify the duration between PPP reconnected attempts, as provided by your ISP. PPP Authentication  PPP supports four authentication protocols: Password Authentication Protocol (PAP), Challenge Handshake Authentication Protocol (CHAP), Microsoft CHAP version 1, and Microsoft CHAP version 2. This section allows you to select the authentication protocols your MP252 may use when negotiating with a PPTP server. Select all the protocols if no information is available about the server's authentication protocols. Note that encryption is performed only if 'Microsoft CHAP', 'Microsoft CHAP version 2', or both are selected.  Login User Name: login username according to ISP  Login Password: login password according to ISP  Support Un-encrypted Password (PAP): PAP is a simple, plaintext authentication scheme. The username and password are requested by your networking peer in plain text. PAP, however, is not a secure authentication protocol. Man-in-the-middle attacks can easily determine the remote access client's password. PAP offers no protection against replay attacks, remote client impersonation, or remote server impersonation.  Support Challenge Handshake Authentication (CHAP): CHAP is a challenge-response authentication protocol that uses MD5 to hash the response to a challenge. CHAP protects against replay attacks by using an arbitrary challenge string per authentication attempt.  Support Microsoft CHAP: Select this check box if you are communicating with a peer that uses Microsoft CHAP authentication protocol.  Support Microsoft CHAP Version 2: Select this check box if you are communicating with a peer that uses Microsoft CHAP Version 2 authentication protocol. PPP Compression  The PPP Compression Control Protocol (CCP) is responsible for configuring, enabling, and disabling data compression algorithms on both ends of the point-to-point link. It is also used to signal a failure of the compression/ decompression mechanism in a reliable manner. For each compression algorithm, select one of the following from the drop down menu.  Reject: Reject PPP connections with peers that use the compression algorithm.  Allow: Allow PPP connections with peers that use the compression algorithm.  Require: Ensure a connection with a peer is using the compression algorithm.  12.3.8  PPTP tab The PPTP tab displays the PPTP settings.   Note:  This tab is applicable only to PPTP connections.
MP252 Multimedia Home Gateway  180  Document #: LTRT-23504   User's Manual   Figure 12-69: Editing Connection - PPTP Tab  Table 12-5: PPTP Tab Parameter Descriptions Parameter  Description PPTP Server Host Name or IP Address PPTP server host name or IP address provided by your ISP.  12.3.9  Advanced Tab The Advanced tab provides various advanced configurations. Figure 12-70: Editing Connection - Advanced Tab (For Example, WAN Ethernet)   Internet Connection Firewall: Your MP252's firewall helps protect your computer by preventing unauthorized users from gaining access to it through a network such as the Internet. The firewall can be activated per network connection. To enable the firewall on this network connection, select the 'Enabled' check box. You can click the Internet Connection Firewall link to access the ‘Security’ screen (see Section 14.1 on page 226).  Internet Connection Fastpath: Select this check box to utilize the Fastpath algorithm for enhancing packet flow, resulting in faster communication between the LAN and the WAN.   Additional IP Addresses: You can also add alias names (additional IP addresses) to the MP252, by clicking the New   icon. This enables you to access the MP252 using these aliases in addition to the default IP addresses. Figure 12-71: Additional IP Address Settings Screen
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  181  June 2011          12.4  VLAN Settings   To create a new VLAN interface: 1.  From  the  menu  bar,  click  the  Network  Connections  menu,  and  then  in  the  screen 'Network Connections' click the New   icon; the 'Connection Wizard' screen appears. Figure 12-72: Connection Wizard Screen  2.  Select  the  'Advanced  Connection'  option,  and  then  click  Next;  the  'Advanced Connection' screen appears.
MP252 Multimedia Home Gateway  182  Document #: LTRT-23504   User's Manual  Figure 12-73: Advanced Connection  3.  Select  the  'VLAN  Interface'  option,  and  then  click  Next;  the  'VLAN  Interface'  screen appears. Figure 12-74: VLAN Interface
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  183  June 2011 4.  From  the  'Underlying  Device'  drop-down  list,  select  the  underlying  device  (device's Ethernet connections) for this interface. 5.  In the 'VLAN ID' field, enter a value to serve as the VLAN ID, and then click Next; the 'Connection Summary' screen appears. Figure 12-75: Connection Summary  6.  Check  the  'Edit  the  Newly  Created  Connection'  check  box  to  be  routed  to  the  new connection's configuration screen after clicking Finish. 7.  Click  Finish  to  save  the  settings;  the  new  VLAN  interface  is  added  to  the  network connections list; it’s configurable like any other connection.  12.4.1  Settings Tab The Settings tab of the 'VLAN Properties' displays general communication parameters. It’s recommended to leave the values in this screen at their defaults unless you’re familiar with the  networking  concepts  they  represent.  Since  your  Telephone  Adapter  is  configured  to operate with the default values, no parameter modification is necessary. You can configure the following general connection settings: Table 12-6: VLAN Interface - General Communication Parameters Parameter  Description Schedule  By default, the connection is always active. However, you can configure scheduler rules in order to define time segments during which the connection may be active. Once a scheduler rule(s) is defined (via Advanced>Scheduler Rules), this field changes to a drop-down list, allowing you to choose between the available rules. To configure scheduler rules, see Section 10.11. Network  Select whether the parameters you are configuring relate to a WAN, LAN or DMZ connection, by selecting the connection type from the drop-down list. For detailed information, see Section 4.2. Physical Address  The physical address of the network card used for your network.  MTU  MTU is the Maximum Transmission Unit. It specifies the largest packet size permitted for Internet transmission. In the default setting, Automatic, the Telephone Adapter selects the best MTU for your Internet connection. In case you change to manual, you can enter the largest packet size, you should leave this value in the 1200 to 1500 range. Underlying Connection The Ethernet device that the connection is implemented over. Select one of the following Internet Protocol options from the 'Internet Protocol' drop down menu:
MP252 Multimedia Home Gateway  184  Document #: LTRT-23504   User's Manual   No IP Address  Obtain an IP Address Automatically  Use the Following IP Address Note that according to the selection you make in the 'Internet Protocol' drop down menu, the screen refreshes and displays relevant configuration settings.  No IP Address: Select 'No IP Address' if you require that your Telephone Adapter has no IP address. This can be useful if you are working in an environment where you are not connected to other networks, such as the Internet.  Obtain an IP Address Automatically: Your WAN connection is configured by default to act as a DHCP client. You should keep this configuration in case your service provider supports DHCP, or if you are connecting using a dynamic IP address. The server that assigns the Telephone Adapter with an IP address also assigns a subnet mask. You can override the dynamically assigned subnet mask by selecting the 'Override Subnet Mask' and specifying your own mask instead. You can click the Release button to release the current leased IP address. Once the address has been released, the button text changes to 'Renew'. Use the Renew button to renew the leased IP address.  Use the Following IP Address: Your WAN connection can be configured using a permanent (static) IP address. Your service provider should provide you with this IP address, subnet mask and the default Telephone Adapter IP address. 12.4.1.1  IP Address Distribution The  'IP  Address  Distribution'  section  allows  you  to  configure  the  device's  Dynamic  Host Configuration  Protocol  (DHCP)  server  parameters.  The  DHCP  automatically  assigns  IP addresses to network PCs. If you enable this feature, make sure that you also configure your network PCs as DHCP clients. For a comprehensive description of this feature, see Section 10.28. Select one of the following options from the 'IP Address Distribution' drop-down list: Table 12-7: IP Address Distribution Parameters Parameter  Description DHCP Server Start IP Address The first IP address that may be assigned to a LAN host. Since the device's default IP address is 192.168.2.1, this address must be 192.168.2.2 or greater. End IP Address The last IP address in the range that can be used to automatically assign IP addresses to LAN hosts. Subnet Mask A mask used to determine to what subnet an IP address belongs. An example of a subnet mask value is 255.255.0.0. Lease Time In Minutes Each device is assigned an IP address by the DHCP server for a this amount of time, when it connects to the network. When the lease expires the server determines if the computer has disconnected from the network. If it has, the server may reassign this IP address to a newly-connected computer. This feature ensures that IP addresses that are not in use become available for other computers on the network. Provide Host Name If Not Specified by Client If the DHCP client does not have a host name, the device automatically assigns one for him.  Figure 12-76: IP Address Distribution - DHCP Server
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  185  June 2011  Table 12-8: DHCP Relay Parameter  Description DHCP Relay Your device can act as a DHCP relay in case you would like to dynamically assign IP addresses from a DHCP server other than your Telephone Adapter's DHCP server. Note that when selecting this option you must also change the device's WAN to work in routing mode. For detailed information, see Section 10.28.2.  1.  After selecting 'DHCP Relay' from the drop down list, a New IP Address link appears: Figure 12-77: IP Address Distribution - DHCP Relay  2.  Click the New IP Address link; the 'DHCP Relay Server Address' screen appears: Figure 12-78: DHCP Relay Server Address  3.  Specify the IP address of the DHCP server. 4.  Click OK to save the settings. Table 12-9: Assigning Static IP Addresses to Network Computers Parameter  Description Disabled Select 'Disabled' from the drop-down list to statically assign IP addresses to your network computers.  Figure 12-79: IP Address Distribution - Disable DHCP
MP252 Multimedia Home Gateway  186  Document #: LTRT-23504   User's Manual  12.4.2  Routing Tab You can choose to setup your Telephone Adapter to use static or dynamic routing. Dynamic routing  automatically  adjusts  how  packets  travel  on  the  network,  whereas  static  routing specifies a fixed routing path to neighboring destinations. Figure 12-80: Advanced Routing Properties
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  187  June 2011 Table 12-10: Routing Parameters Parameter  Description Routing  Select 'Advanced' or 'Basic' routing. Routing Mode  Select one of the following Routing modes:  Route: Use route mode if you want your device to function as a router between two networks.  NAT: Network Address Translation (NAT) translates IP addresses to a valid, public address on the Internet. This adds security since internal LAN addresses are not transmitted over the Internet. In addition, NAT allows many addresses to exist behind a single valid address. Use the NAT routing mode if your LAN consists of a single device, otherwise collisions may occur if more than one device attempts to communicate using the same port.  NAPT: Network Address and Port Translation (NAPT) refers to network address translation involving the mapping of port numbers, allowing multiple machines to share a single IP address. Use NAPT if your LAN encompasses multiple devices, a topology that necessitates port translation in addition to address translation. Device Metric  The device metric is a value used by the device to determine whether one route is superior to another, considering parameters such as bandwidth, delay, and more. Default Route  Select this check box to define this device as a the default route. Multicast  IGMP Proxy Internal IGMP proxy enables the system to issue IGMP host messages on behalf of hosts that the system discovered through standard IGMP interfaces. IGMP proxy enables the routing of multicast packets according to the IGMP requests of LAN devices asking to join multicast groups. Select the 'Multicast IGMP Proxy Internal' check-box to enable this feature. Routing Table  Allows you to add or modify routes when this device is active. Use the New Route button to add a route or edit existing routes.   12.4.3  Advanced Tab Your Telephone Adapter’s firewall helps protect your computer by preventing unauthorized users from gaining access to it through a network such as the Internet. The firewall can be activated per network connection. To enable the firewall on this network connection, select the  'Enabled'  check  box.  For  detailed  information  on  your  device's  security  features,  see Section 5.
MP252 Multimedia Home Gateway  188  Document #: LTRT-23504   User's Manual  Figure 12-81: Internet Connection Firewall  You can add alias names (additional IP addresses) to the MP252 by clicking the 'New IP Address' link. This enables you to access the device using these aliases in addition to the IP address (e.g., 192.168.2.1) and http://mp252.home.      12.5  LAN-WAN Bridge Settings A WAN-LAN bridge is a bridge over WAN and LAN devices. In such a setup, computers on the MP252 LAN side can get IP addresses that are known on the WAN side.   To configure an existing bridge or create a new one: 1.  From the menu bar, click the Network Connections menu, and in the screen 'Network Connections' click the New   icon; the 'Connection Wizard' screen appears. 2.  Select  the  'Advanced  Connection'  option,  and  then  click  Next;  the  'Advanced Connection' screen appears. 3.  Select the 'Network Bridging' option, and then click Next; the screen 'Bridge Options' opens. Figure 12-82: Bridge Options
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  189  June 2011 4.  Select whether to configure an existing bridge (this option only appears if a bridge exists) or to add a new one: • Configure Existing Bridge: Select this option and then click Next; the screen 'Network Bridging' opens, allowing you to add new connections or remove existing ones, by selecting or clearing their respective check boxes. Figure 12-83: Network Bridging Screen  For example, checking the WAN check box creates a LAN-WAN bridge. • Add a New Bridge: Select this option and then click Next; a different 'Network Bridging' screen appears, allowing you to add a bridge over the unbridged connections, by selecting their respective check boxes. Figure 12-84: Adding New Network Bridging
MP252 Multimedia Home Gateway  190  Document #: LTRT-23504   User's Manual  Important notes: • The same connections cannot be shared by two bridges. • A bridge cannot be bridged. • Bridged connections lose their IP settings. 5.  Click Next; the screen 'Connection Summary' opens, corresponding to your changes. Figure 12-85: Connection Summary - Configure Existing Bridge  6.  Select  the  check  box  'Edit  the  Connection'  to  be  routed  to  the  new  connection's configuration screen after clicking Finish. 7.  Click Finish to save the settings; the new bridge is added to the network connections list; it's configurable like any other bridge. 12.5.1  Editing LAN-WAN Bridging You can edit existing LAN-WAN bridges that are listed in the Connections list. This is done in the Bridging tab, which allows you to specify the LAN and WAN devices that you would like to join under the network bridge.   To edit LAN-WAN bridging: 1.  From  the  menu  bar,  click  the  Network  Connections  menu,  and  then  in  the  screen 'Network  Connections'  click  the  Edit  icon  corresponding  the  bridged  network;  the 'Connection Wizard' screen appears. 2.  Click the Bridge tab; the LAN Bridge Properties screen appears.
MP252 Multimedia Home Gateway  12. Network Connections Version 3.4.0  191  June 2011 Figure 12-86: Bridging Tab  3.  Select the check boxes corresponding to the connection names that you want to bridge, or clear the check boxes of connections that you do not want to bridge. 4.  Select the ‘Bridge Hardware Acceleration’ check box to utilizes the Fastpath algorithm, which enhances packet flow, resulting in faster communication between the LAN and the WAN (excluding the wireless connection). 5.  Select the 'STP' check box to enable the Spanning Tree Protocol (STP) on the device. You should use this to ensure that there are no loops in your network configuration, and apply these settings if your network consists of multiple switches, or other bridges apart from those created by the MP252 6.  To configure VLANs for each network connection in the bridge: a.  Click the Edit  icon in the 'VLANs' column corresponding to a network that you want to assign specific Virtual LANs; the ‘VLAN Settings’ screen appears.
MP252 Multimedia Home Gateway  192  Document #: LTRT-23504   User's Manual  Figure 12-87: VLAN Settings Screen  b.  Select the ‘Enable VLAN’ check box to enable VLANs on this connection; the screen refreshes and additional parameters appear. c.  In the ‘Default VLAN ID’ field, enter a VLAN ID for this connection or  add additional VLANs by clicking the New   icon, and then enter another VLAN ID. 7.  To create a traffic filtering rule on the bridge to enable direct packet flow between the WAN and the LAN (i.e., Bridge Filtering):  a.  In the ‘Bridge Filter’ table, click the New   icon; the ‘Bridge Filter’ screen appears. Figure 12-88: Bridge Filter Screen   b.  From the ‘Source Address’ drop-down list, select a Network Object (defined in Section 4.5.2 on page 50) or create a new one by clicking ‘User Defined’. You can define a traffic filtering rule that enables direct packet flow between the WAN and the LAN host that will be placed under the WAN-LAN bridge. This filtering rule can be based on either a LAN host's MAC address or one of its DHCP options. c.  From the 'Operation' drop-down list, select the bridge. d.  Click OK.
Version 3.4.0  193  July 2011 MP252 Multimedia Home Gateway  13. Remote MP252 Management  13  Remote MP252 Management This  chapter  provides  an  overview  of  the  MP252  remote  configuration  and  management support. In addition, this chapter describes how to enable and secure remote management, as well configure MP252 through SNMP and TR069. 13.1  Overview MP252 is designed to be mass-deployed. One of the keys to guarantee end-user satisfaction and true toll-quality service in mass field deployment is comprehensive remote configuration and management capabilities:  Automatic and remote configuration updates   Automatic and remote firmware updates  Remote diagnosis of problems reported by the user  Remote collection of statistical information regarding the quality of the service  Remote notifications of problems in the service 13.1.1  Remote Configuration By default, MP252 is provided with factory default settings, which are common to all MP252 devices  (except  for  the  MAC  address).  The  factory  settings  allow  the  user  to  connect  to MP252's Web interface through the LAN. By  default,  the  WAN  interface  is  configured  for  DHCP  (i.e.,  automatically  obtains  its  IP address from a DHCP server). The default configuration should not include any VoIP service provider settings (such as a SIP proxy). In  some  cases,  AudioCodes  can  ship  MP252  devices  that  are  pre-configured  with  some customer-specific parameters. This set of parameters is usually defined as the new "factory settings" for the specific customer. MP252's factory default settings and the current configuration running on MP252 are stored on MP252's non-volatile flash memory. The current configuration can be remotely updated using several configuration interfaces:  HTTP-based Web server  SNMP  TR-069  Configuration file upload/download
MP252 Multimedia Home Gateway  194  Document #: LTRT-23504   User's Manual  Figure 13-1: Remote Management Interfaces  All  configuration  interfaces  access  the  same  internal  configuration  repository.  The configuration file represents the complete set of MP252 configuration parameters. Specific configuration interfaces (e.g. SNMP and TR-069) might support access only to a sub-set of these configuration parameters. At any time, the factory settings can be restored using the Web interface or by pressing the Reset pin-hole button while MP252 is being powered up. The table below lists the main MP252 configuration parameter groups: Table 13-1: Main Configuration Parameter Groups Group  Description VoIP  Parameters relating to the VoIP functionality (e.g. analog interface, SIP signaling, voice and fax, media streaming) WAN Interface   The main WAN Internet connection (this group is also referred to as the "Quick Setup"). Network Connections  Configuration of all network connections (LAN and WAN), including advanced connections such as VLANs. Security  Parameters relating to the internal firewall. QoS  Configuration of Quality of Service parameters such as priorities and traffic shaping. System / Advanced  Configuration of system parameters such as Remote Update and Remote Access and advanced parameters such as Dynamic DNS, UPnP. A  typical  set  of  parameters  that  a  service  provider  may  want  to  configure  include  the following:  Remote access and/or automatic firmware and configuration update parameters  VoIP configuration: SIP proxy, line settings (User IP, Password)  QoS parameters (e.g. traffic shaping)  13.1.2  Remote Management
MP252 Multimedia Home Gateway  13. Remote MP252 Management Version 3.4.0  195  June 2011 Remote management includes the following:  Firmware upgrade  Status and performance monitoring  Alarms, notifications, and logs 13.1.2.1  Firmware Upgrade Service providers require the ability to update MP252's firmware in the field (e.g. in case of maintenance  releases  or  releases  that  support  new  required  features).  The  process  is required to be automatic, allowing mass update, which is robust and fail-safe. MP252's  firmware  is  stored  on  the  non-volatile  flash  memory.  MP252's  flash  memory  is capable of storing a recovery firmware that ensures a fail-safe operation (even if the user unplugs the power during the firmware burning process). MP252's firmware can be upgraded using one of the following mechanisms:  The new firmware can be "pushed" (uploaded) to MP252, using the MP252 Web interface  The new firmware can be "pulled" (downloaded) by MP252 from a remote HTTP, FTP, or TFTP server Figure 13-2: Firmware Upgrade Mechanism
MP252 Multimedia Home Gateway  196  Document #: LTRT-23504   User's Manual  The remote firmware download process can be triggered by one of the following:  MP252 checks for a new firmware upon MP252 restart   MP252 periodically checks for a new firmware  Manual trigger using CLI, TR-069, SNMP or Web   Note:  Unless forced, MP252 downloads and upgrades to the new firmware only if its version number is higher than the firmware version currently running on MP252. The version number is not taken from the image file name, but from the header of the image file.  13.1.2.2  Status and Performance Monitoring The ability to remotely monitor the status of MP252 is critical to the service provider, who wants to support users without having to send a technician on site (avoiding the "truck roll"). The service provider may want to know the current status of MP252 (e.g. is it registered to the SIP proxy, is the phone off-hook) or some statistical information (e.g. average packet loss during a call). MP252 maintains a set of status and performance information internally. This information (or parts of it) can be retrieved via the different management interfaces (e.g. Web, or TR-069). The  table below describes the status  and performance monitoring  (statistical)  information available in MP252. Table 13-2: Status and Performance Monitoring Parameters Group  Description VoIP  Current status information per line:  Phone state  Registration status  Source, codec and type of current call  Packet loss, jitter and delay of current call Network Connections  Current status information per interface:  Connection status  Allocated IP address  Received and transmitted packets System  Software version information  Hardware version information  System Up time
MP252 Multimedia Home Gateway  13. Remote MP252 Management Version 3.4.0  197  June 2011 13.1.2.3  Alarms, Notifications and Logging Instead of periodically polling MP252 to obtain its current status, the service provider may want MP252 to notify abnormal events or to send regular reports to a logging server. Both options are supported by MP252. The table below lists the relevant interfaces for alarms and notifications. Table 13-3: Notifications and Logged Events Group  Notifications and Logged Events VoIP  Notifications: Registration error or timeout  Logged Events:  End of call (Call Detail Record logging)  SIP messages logging (optional - for debugging) Network Connections  Notifications: Connection up / down Security  Logged Events: Security log (configurable) System  Notifications:  System restart  Firmware / configuration update  Logged Events: Debug-level logging (optional) Note that the terms Alarm and Notification represent the same thing. The difference between alarm/notification and logging is that an alarm is normally used to represent an abnormal event (e.g. registration error), while logged events can represent either regular events (e.g. end of call) or abnormal events.  The  table  below  lists  the  event  severity  levels  defined  in  MP252.  Typically,  events  with severity of Error or Emergency are notified in addition to being logged. Table 13-4: Severity of Logged Events Severity  Description Debug  Debug-level messages. Notice  Normal but significant condition. Notices requiring attention at a later time. Non-error conditions that might require special handling. Error  Recoverable / temporary error condition. Emergency System is unusable. The most severe messages that prevent continuation of operation, such as immediate system shutdown.    13.2  Enabling Remote Management You can access and manage MP252 not only from within the home network, but also from the Internet. This allows you to view or change settings while travelling. It also enables you to allow your ISP to change settings or help you troubleshoot functionality or communication issues from a remote location. Remote access to MP252 is blocked by default to ensure the security of your home network. However,  remote  access  is  supported  by  the  following  services,  and  you  may  use  the 'Remote  Access  Configuration'  screen  to  selectively  enable  these  services  if  they  are needed.
MP252 Multimedia Home Gateway  198  Document #: LTRT-23504   User's Manual   Notes:   • Telnet and Web-Management can be used to modify the settings of the firewall or to disable it. You can also change local IP addresses and other settings, making it difficult or impossible to access MP252 from the home network. Therefore, remote access to Telnet or HTTP services should be blocked and should only be permitted when absolutely necessary. • Encrypted remote administration is done using a secure SSL connection that requires an SSL certificate. When accessing MP252 for the first time using encrypted remote administration, you are prompted by your browser with a warning regarding certificate authentication. This is because MP252's SSL certificate is self generated. When encountering this message under these circumstances, ignore it and continue. It should be noted that even though this message appears, the self-generated certificate is safe, and provides you with a secure SSL connection. You can also assign a user-defined certificate to MP252.    To enable remote access to MP252 services: 1.  In  the  'Advanced'  screen,  click  the  Remote  Administration   icon;  the  'Remote Administration' screen appears.
MP252 Multimedia Home Gateway  13. Remote MP252 Management Version 3.4.0  199  June 2011 Figure 13-3: Remote Administration Screen  2.  Select the services that you would like to make available to computers on the Internet. • Allow Incoming WAN Access to Web-Management: Allows access (from a Web browser) to the Web management interface and to all system settings and parameters. Both secure (HTTPS) and non-secure (HTTP) access is available. • Allow Incoming WAN Access to the Telnet Server: Allows access to the command-line session and to all system settings and parameters (using a text-based terminal). • SNMP: Allows Simple Network Management Protocol (SNMP) requests to remotely configure and monitor MP252. • Diagnostic Tools: Allows remote access for ping and traceroute (over UDP) troubleshooting. • TR-069: TR-069 is a WAN management protocol for communication between Customer Premise Equipment (CPE) and an Auto-Configuration Server (ACS). It defines a mechanism that encompasses secure auto-configuration of a CPE, and also incorporates other CPE management functions into a common framework. 3.  Click OK to save your changes.
MP252 Multimedia Home Gateway  200  Document #: LTRT-23504   User's Manual  13.3  Securing Remote Management with Certificates The  Certificates   icon  allows  you  to  configure  certificates.  When  a  service  provider implements remote provisioning in which a unique configuration file (per MP252) is placed on a server located on the WAN, the service provider can ensure that only its deployed MP252 units  are  able  to  connect  to  the  HTTP  server  via  HTTPS.  This  is  performed  by  using  a certification validation process (client-server).  There are two types of certificates:  Self-signed certificates  Certificate Authority (CA) signed certificates The procedure below describes how to operate with self-signed certificates.  To operate with self-signed certificates: 1.  In the 'Advanced' screen, click the   icon; the 'Certificates' screen appears. Figure 13-4: New Certificates Screen  2.  Create a self-signed certificate:   Note:  You  can  also  create  a  self-signed  certificate  using  the  OpenSSL  utility, downloaded from http://sial.org/howto/openssl/self-signed.  a.  Select the MP252’s Local tab. b.  Click the Create Self Signed Certificate button; the 'Create Self Signed X509 Certificate' screen appears.

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