ZyXEL Communications P870HW51AV2 802.11bg Wireless VDSL2 4-Port Gateway User Manual SMG 700 User s Guide V1 00 Nov 2004

ZyXEL Communications Corporation 802.11bg Wireless VDSL2 4-Port Gateway SMG 700 User s Guide V1 00 Nov 2004

Contents

Installation guide 2

 Chapter 17 ToolsP-870HW-51a v2 User’s Guide 151Figure 89   Firmware Upload In ProgressThe ZyXEL Device automatically restarts in this time causing a temporary network disconnect. In some operating systems, you may see the following icon on your desktop.Figure 90   Network Temporarily DisconnectedAfter two minutes, log in again and check your new firmware version in the Status screen.If the upload was not successful, the following screen will appear. Click Tools to go back to the Firmware screen.Figure 91   Error Message17.3  The Configuration Screen Click Maintenance > Tools > Configuration. Information related to factory defaults, backup configuration, and restoring configuration appears in this screen, as shown next.
Chapter 17 ToolsP-870HW-51a v2 User’s Guide152Figure 92   Maintenance > Tools > ConfigurationBackup Configuration Backup Configuration allows you to back up (save) the ZyXEL Device’s current configuration to a file on your computer. Once your ZyXEL Device is configured and functioning properly, it is highly recommended that you back up your configuration file before making configuration changes. The backup configuration file will be useful in case you need to return to your previous settings. Click Backup to save the ZyXEL Device’s current configuration to your computer.Restore Configuration Restore Configuration allows you to upload a new or previously saved configuration file from your computer to your ZyXEL Device.1Do not turn off the ZyXEL Device while configuration file upload is in progress.After you see a “restore configuration successful” screen, you must then wait one minute before logging into the ZyXEL Device again. Table 51   Restore ConfigurationLABEL DESCRIPTIONFile Path  Type in the location of the file you want to upload in this field or click Browse ... to find it.Browse...  Click Browse... to find the file you want to upload. Remember that you must decompress compressed (.ZIP) files before you can upload them. Upload  Click Upload to begin the upload process.
 Chapter 17 ToolsP-870HW-51a v2 User’s Guide 153Figure 93   Configuration Upload SuccessfulThe ZyXEL Device automatically restarts in this time causing a temporary network disconnect. In some operating systems, you may see the following icon on your desktop.Figure 94   Network Temporarily DisconnectedIf you uploaded the default configuration file you may need to change the IP address of your computer to be in the same subnet as that of the default device IP address (192.168.1.1). See Appendix A on page 173 for details on how to set up your computer’s IP address.If the upload was not successful, the following screen will appear. Click Tools > Configuration to go back to the Configuration screen. Figure 95   Configuration Upload ErrorReset to Factory Defaults  Click the Reset button to clear all user-entered configuration information and return the ZyXEL Device to its factory defaults. The following warning screen appears.Figure 96   Reset Warning MessageYou can also press the RESET button on the rear panel to reset the factory defaults of your ZyXEL Device. Refer to Section 1.6 on page 28 for more information on the RESET button.
Chapter 17 ToolsP-870HW-51a v2 User’s Guide15417.4  The Restart Screen System restart allows you to reboot the ZyXEL Device without turning the power off. Click Maintenance > Tools > Restart. Click Restart to have the ZyXEL Device reboot. This does not affect the ZyXEL Device's configuration. Figure 97   Maintenance > Tools >Restart
P-870HW-51a v2 User’s Guide 155CHAPTER  18 Diagnostic18.1  OverviewThe route between a CO VDSL switch and one of its CPE may go through switches owned by independent organizations. A connectivity fault point generally takes time to discover and impacts subscriber’s network access. In order to eliminate the management and maintenance efforts, IEEE 802.1ag is a Connectivity Fault Management (CFM) specification which allows network administrators to identify and manage connection faults. Through discovery and verification of the path, CFM can detect, analyze and isolate connectivity faults in bridged LANs.18.1.1  What You Can Do in this ChapterThe 802.1ag screen lets perform CFM actions (Section 18.3 on page 156).18.2  What You Need to KnowThe following terms and concepts may help as you read through this chapter.How CFM Works A Maintenance Association (MA) defines a VLAN and associated Maintenance End Point (MEP) ports on the device under a Maintenance Domain (MD) level. An MEP port has the ability to send Connectivity Check Messages (CCMs) and get other MEP ports information from neighbor devices’ CCMs within an MA. CFM provides two tests to discover connectivity faults. • Loopback test - checks if the MEP port receives its Loop Back Response (LBR) from its target after it sends the Loop Back Message (LBM). If no response is received, there might be a connectivity fault between them. • Link trace test - provides additional connectivity fault analysis to get more information on where the fault is. If an MEP port does not respond to the source MEP, this may indicate a fault. Administrators can take further action to check and resume services from the fault according to the line connectivity status report.
Chapter 18 DiagnosticP-870HW-51a v2 User’s Guide15618.3  The 802.1ag ScreenClick Diagnostic to open the following screen. Use this screen to perform CFM actions. Figure 98   802.1ag The following table describes the fields in this screen. Table 52   802.1agLABEL DESCRIPTION802.1ag Connectivity Fault Management Maintenance Domain (MD) NameType a name of up to 39 printable English keyboard characters for this MD.The combined length of the MD Name and MA name must be less or equal to 44bytes.Maintenance Domain (MD) Level Select a level (0-7) under which you want to create an MA.Maintenance Association (MA) NameType a name of up to 39 printable English keyboard characters for this MA. The combined length of the MD Name and MA name must be less or equal to 44bytes.
 Chapter 18 DiagnosticP-870HW-51a v2 User’s Guide 157Maintenance Association (MA) FormatSelect the format which the ZyXEL Device uses to send this MA information in the domain (MD). Options are VID, String and Integer.If you select VID or Integer, the ZyXEL Device adds the VLAN ID you specified for an MA in the CCM.If you select String, the ZyXEL Device adds the MA name you specified above in the CCM.Note: The MEPs in the same MA shoule use the same MA format.Destination MAC Address Enter the target device’s MAC address to which the ZyXEL Device performs a CFM loopback test.Count Set how many times the ZyXEL Device send loopback messages (LBMs).802.1Q VLAN ID Type a VLAN ID (0-4095) for this MA.Maintenance End Point ID Enter an ID number (1-8191) for this MEP port. Each MEP port needs a unique ID number within an MD. The MEP ID is to identify an MEP port used when you perform a CFM actionStatus Continuity Check Message (CCM) This shows how many Connectivity Check Messages (CCMs) are sent and if there is any invalid CCM or cross-connect CCM.Loopback Message (LBM) This shows how many Loop Back Messages (LBMs) are sent and if there is any inorder or outorder Loop Back Response (LBR) received from a remote MEP.Linktrace Message (LTM) This shows the Time-to-Live (TTL) value and destination MAC address in the Link Trace Response (LTR).Enable CCM Click this button to have the selected MEP send Connectivity Check Messages (CCMs) to other MEPs.Disable CCM Click this button to disallow the selected MEP to send Connectivity Check Messages (CCMs) to other MEPs.Update CC status Click this button to reload the test result.Send Loopback Click this button to have the selected MEP send the LBM (Loop Back Message) to a specified remote end point.Send Linktrace Click this button to have the selected MEP send the LTMs (Link Trace Messages) to a specified remote end point.Table 52   802.1ag (continued)LABEL DESCRIPTION
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P-870HW-51a v2 User’s Guide 159CHAPTER  19 TroubleshootingThis chapter offers some suggestions to solve problems you might encounter. The potential problems are divided into the following categories. •Power, Hardware Connections, and LEDs•ZyXEL Device Access and Login•Internet Access19.1  Power, Hardware Connections, and LEDsVThe ZyXEL Device does not turn on. None of the LEDs turn on.1Make sure the ZyXEL Device is turned on. 2Make sure you are using the power adaptor or cord included with the ZyXEL Device.3Make sure the power adaptor or cord is connected to the ZyXEL Device and plugged in to an appropriate power source. Make sure the power source is turned on.4Turn the ZyXEL Device off and on. 5If the problem continues, contact the vendor.VOne of the LEDs does not behave as expected.1Make sure you understand the normal behavior of the LED. See Section 1.5 on page 26.2Check the hardware connections. See the Quick Start Guide. 3Inspect your cables for damage. Contact the vendor to replace any damaged cables.4Turn the ZyXEL Device off and on. 5If the problem continues, contact the vendor.
Chapter 19 TroubleshootingP-870HW-51a v2 User’s Guide16019.2  ZyXEL Device Access and LoginVI forgot the IP address for the ZyXEL Device.1The default IP address is 192.168.1.1.2If you changed the IP address and have forgotten it, you might get the IP address of the ZyXEL Device by looking up the IP address of the default gateway for your computer. To do this in most Windows computers, click Start > Run, enter cmd, and then enter ipconfig. The IP address of the Default Gateway might be the IP address of the ZyXEL Device (it depends on the network), so enter this IP address in your Internet browser. 3If this does not work, you have to reset the device to its factory defaults. See Section 1.6 on page 28.VI forgot the password.1The default password is 1234.2If this does not work, you have to reset the device to its factory defaults. See Section 1.6 on page 28.VI cannot see or access the Login screen in the web configurator.1Make sure you are using the correct IP address.• The default IP address is 192.168.1.1.• If you changed the IP address (Section  on page 72), use the new IP address.• If you changed the IP address and have forgotten it, see the troubleshooting suggestions for I forgot the IP address for the ZyXEL Device.2Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick Start Guide.3Make sure your Internet browser does not block pop-up windows and has JavaScripts and Java enabled. See Appendix B on page 197.4Reset the device to its factory defaults, and try to access the ZyXEL Device with the default IP address. See Section 1.6 on page 28. 5If the problem continues, contact the network administrator or vendor, or try one of the advanced suggestions.Advanced Suggestions• If your computer is connected wirelessly, use a computer that is connected to a ETHERNET port.
 Chapter 19 TroubleshootingP-870HW-51a v2 User’s Guide 161VI can see the Login screen, but I cannot log in to the ZyXEL Device.1Make sure you have entered the user name and password correctly. The default password is 1234. These fields are case-sensitive, so make sure [Caps Lock] is not on. 2Turn the ZyXEL Device off and on. 3If this does not work, you have to reset the device to its factory defaults. See Section 19.1 on page 159.19.3  Internet AccessVI cannot access the Internet.1Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick Start Guide and Section 1.5 on page 26. 2Make sure you entered your ISP account information correctly in the WAN screens. These fields are case-sensitive, so make sure [Caps Lock] is not on. 3If you are trying to access the Internet wirelessly, make sure the wireless settings in the wireless client are the same as the settings in the AP. 4Disconnect all the cables from your device, and follow the directions in the Quick Start Guide again. 5If the problem continues, contact your ISP. VI cannot access the Internet anymore. I had access to the Internet (with the ZyXEL Device), but my Internet connection is not available anymore.1Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick Start Guide and Section 1.5 on page 26.2Turn the ZyXEL Device off and on. 3If the problem continues, contact your ISP. VThe Internet connection is slow or intermittent.1There might be a lot of traffic on the network. Look at the LEDs, and check Section 1.5 on page 26. If the ZyXEL Device is sending or receiving a lot of information, try closing some programs that use the Internet, especially peer-to-peer applications.
Chapter 19 TroubleshootingP-870HW-51a v2 User’s Guide1622Check the signal strength. If the signal strength is low, try moving your computer closer to the ZyXEL Device if possible, and look around to see if there are any devices that might be interfering with the wireless network (for example, microwaves, other wireless networks, and so on).3Turn the ZyXEL Device off and on. 4If the problem continues, contact the network administrator or vendor, or try one of the advanced suggestions.Advanced Suggestions• Check the settings for QoS. If it is disabled, you might consider activating it. If it is enabled, you might consider raising or lowering the priority for some applications.
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P-870HW-51a v2 User’s Guide 165CHAPTER  20 Product SpecificationsThe following tables summarize the ZyXEL Device’s hardware and firmware features.20.1  Hardware Specifications20.2  Firmware SpecificationsTable 53   Hardware SpecificationsDimensions (220 W) x (150 D) x (40 H) mmWeight 485 gPower Specification 18VDC 1ABuilt-in Switch Four auto-negotiating, auto MDI/MDI-X 10/100 Mbps RJ-45 Ethernet portsRESET Button Restores factory defaultsAntenna One attached external dipole antenna, 3dBiWPS Button 1 second: turn on or off WLAN5 seconds: enable WPS (Wi-Fi Protected Setup)Operation Temperature 0º C ~ 40º CStorage Temperature -20º ~ 60º COperation Humidity 20% ~ 85% RHStorage Humidity 20% ~ 90% RHTable 54   Firmware Specifications Default IP Address 192.168.1.1Default Subnet Mask 255.255.255.0 (24 bits)Default Password 1234DHCP Server IP Pool 192.168.1.33 to 192.168.1.254Static DHCP Addresses 10Static Routes 16Device Management Use the web configurator to easily configure the rich range of features on the ZyXEL Device.
Chapter 20 Product SpecificationsP-870HW-51a v2 User’s Guide166Wireless Functionality(wireless devices only)Allow the IEEE 802.11b and/or IEEE 802.11g wireless clients to connect to the ZyXEL Device wirelessly. Enable wireless security (WEP, WPA(2), WPA(2)-PSK) and/or MAC filtering to protect your wireless network. Firmware Upgrade Download new firmware (when available) from the ZyXEL web site and use the web configurator to put it on the ZyXEL Device.Note: Only upload firmware for your specific model!Configuration Backup & Restoration Make a copy of the ZyXEL Device’s configuration. You can put it back on the ZyXEL Device later if you decide to revert back to an earlier configuration.Port Forwarding If you have a server (mail or web server for example) on your network, you can use this feature to let people access it from the Internet.DHCP (Dynamic Host Configuration Protocol) Use this feature to have the ZyXEL Device assign IP addresses, an IP default gateway and DNS servers to computers on your network. Your device can also act as a surrogate DHCP server (DHCP Relay) where it relays IP address assignment from the actual real DHCP server to the clients.Dynamic DNS Support With Dynamic DNS (Domain Name System) support, you can use a fixed URL, www.zyxel.com for example, with a dynamic IP address. You must register for this service with a Dynamic DNS service provider.IP Multicast IP multicast is used to send traffic to a specific group of computers. The ZyXEL Device supports versions 1 and 2 of IGMP (Internet Group Management Protocol) used to join multicast groups (see RFC 2236).Time and Date Get the current time and date from an external server when you turn on your ZyXEL Device. You can also set the time manually. These dates and times are then used in logs.Logs Use logs for troubleshooting. You can send logs from the ZyXEL Device to an external syslog server.Universal Plug and Play (UPnP) A UPnP-enabled device can dynamically join a network, obtain an IP address and convey its capabilities to other devices on the network.QoS (Quality of Service) You can efficiently manage traffic on your network by reserving bandwidth and giving priority to certain types of traffic and/or to particular computers.Remote Management This allows you to decide whether a service (HTTP or FTP traffic for example) from a computer on a network (LAN or WAN for example) can access the ZyXEL Device.PPPoE Support (RFC2516) PPPoE (Point-to-Point Protocol over Ethernet) emulates a dial-up connection. It allows your ISP to use their existing network configuration with newer broadband technologies such as ADSL. The PPPoE driver on your device is transparent to the computers on the LAN, which see only Ethernet and are not aware of PPPoE thus saving you from having to manage PPPoE clients on individual computers.Other PPPoE Features PPPoE idle time outPPPoE dial on demandMultiple PVC (Permanent Virtual Circuits) SupportYour device supports up to 8 Permanent Virtual Circuits (PVCs).IP Alias IP alias allows you to partition a physical network into logical networks over the same Ethernet interface. Your device supports three logical LAN interfaces via its single physical Ethernet interface with the your device itself as the gateway for each LAN network.Packet Filters Your device’s packet filtering function allows added network security and management.Table 54   Firmware Specifications  (continued)
 Chapter 20 Product SpecificationsP-870HW-51a v2 User’s Guide 16720.3  Wireless Features ADSL Standards Support ITU G.992.1 G.dmt (Annex B, U-R2)EOC specified in ITU-T G.992.1ADSL2 G.dmt.bis (G.992.3)ADSL2 G.lite.bis (G.992.4)ADSL 2/2+ AnnexMADSL2+ (G.992.5)Reach-Extended ADSL (RE ADSL)SRA (Seamless Rate Adaptation)Auto-negotiating rate adaptationADSL physical connection ATM AAL5 (ATM Adaptation Layer type 5)Multi-protocol over AAL5 (RFC 2684/1483)PPP over ATM AAL5 (RFC 2364)PPP over Ethernet (RFC 2516)Multiple PPPoEVC-based and LLC-based multiplexingUp to 8 PVCs (Permanent Virtual Circuits)I.610 F4/F5 OAMZero configurationOther Protocol Support PPP (Point-to-Point Protocol) link layer protocolTransparent bridging for unsupported network layer protocolsRIP I/RIP IIICMPATM QoS SNMP v1 and v2c with MIB II support (RFC 1213)IP Multicasting IGMP v1 and v2IGMP ProxyManagement Embedded Web ConfiguratorRemote Firmware Upgrade SyslogTR-069Table 54   Firmware Specifications  (continued)Table 55   Wireless FeaturesExternal Antenna  The ZyXEL Device is equipped with an attached antenna to provide a clear radio signal between the wireless stations and the access points.Wireless LAN MAC Address Filtering  Your device can check the MAC addresses of wireless stations against a list of allowed or denied MAC addresses.WEP Encryption WEP (Wired Equivalent Privacy) encrypts data frames before transmitting over the wireless network to help keep network communications private.Wi-Fi Protected Access  Wi-Fi Protected Access (WPA) is a subset of the IEEE 802.11i security standard. Key differences between WPA and WEP are user authentication and improved data encryption.
Chapter 20 Product SpecificationsP-870HW-51a v2 User’s Guide168The following list, which is not exhaustive, illustrates the standards supported in the ZyXEL Device.WPA2  WPA 2 is a wireless security standard that defines stronger encryption, authentication and key management than WPA.Other Wireless Features IEEE 802.11g ComplianceFrequency Range: 2.4 GHz ISM BandAdvanced Orthogonal Frequency Division Multiplexing (OFDM)Data Rates: 54Mbps, 11Mbps, 5.5Mbps, 2Mbps, and 1 Mbps Auto FallbackWPA2WMM IEEE 802.11iIEEE 802.11eWired Equivalent Privacy (WEP) Data Encryption 64/128/256 bit.WLAN bridge to LANUp to 32 MAC Address filtersIEEE 802.1xStore up to 32 built-in user profiles using EAP-MD5 (Local User Database)External RADIUS server using EAP-MD5, TLS, TTLSTable 56   Standards Supported STANDARD DESCRIPTIONRFC 867 Daytime ProtocolRFC 868 Time Protocol.RFC 1058 RIP-1 (Routing Information Protocol)RFC 1112 IGMP v1RFC 1157 SNMPv1: Simple Network Management Protocol version 1RFC 1305 Network Time Protocol (NTP version 3)RFC 1441 SNMPv2 Simple Network Management Protocol version 2RFC 1483 Multiprotocol Encapsulation over ATM Adaptation Layer 5RFC 1631 IP Network Address Translator (NAT)RFC 1661 The Point-to-Point Protocol (PPP)RFC 1723 RIP-2 (Routing Information Protocol)RFC 1901 SNMPv2c Simple Network Management Protocol version 2cRFC 2236 Internet Group Management Protocol, Version 2.RFC 2364 PPP over AAL5 (PPP over ATM over ADSL)RFC 2408 Internet Security Association and Key Management Protocol (ISAKMP)RFC 2516 A Method for Transmitting PPP Over Ethernet (PPPoE)RFC 2684 Multiprotocol Encapsulation over ATM Adaptation Layer 5.RFC 2766 Network Address Translation - ProtocolIEEE 802.11 Also known by the brand Wi-Fi, denotes a set of Wireless LAN/WLAN standards developed by working group 11 of the IEEE LAN/MAN Standards Committee (IEEE 802).IEEE 802.11b Uses the 2.4 gigahertz (GHz) bandTable 55   Wireless Features
 Chapter 20 Product SpecificationsP-870HW-51a v2 User’s Guide 169IEEE 802.11g Uses the 2.4 gigahertz (GHz) bandIEEE 802.11g+ Turbo and Super G modesIEEE 802.11d Standard for Local and Metropolitan Area Networks: Media Access Control (MAC) BridgesIEEE 802.11x Port Based Network Access Control.IEEE 802.11e QoS IEEE 802.11 e Wireless LAN for Quality of ServiceANSI T1.413, Issue 2 Asymmetric Digital Subscriber Line (ADSL) standard.G dmt(G.992.1) G.992.1 Asymmetrical Digital Subscriber Line (ADSL) TransceiversITU G.992.1 (G.DMT) ITU standard for ADSL using discrete multitone modulation.ITU G.992.2 (G. Lite) ITU standard for ADSL using discrete multitone modulation.ITU G.992.3 (G.dmt.bis) ITU standard (also referred to as ADSL2) that extends the capability of basic ADSL in data rates.ITU G.992.4 (G.lite.bis) ITU standard (also referred to as ADSL2) that extends the capability of basic ADSL in data rates.ITU G.992.5 (ADSL2+) ITU standard (also referred to as ADSL2+) that extends the capability of basic ADSL by doubling the number of downstream bits.Microsoft PPTP MS PPTP (Microsoft's implementation of Point to Point Tunneling Protocol)MBM v2 Media Bandwidth Management v2RFC 2383 ST2+ over ATM Protocol Specification - UNI 3.1 VersionTR-069 TR-069 DSL Forum Standard for CPE Wan Management.1.363.5 Compliant AAL5 SAR (Segmentation And Re-assembly) Table 56   Standards Supported  (continued)STANDARD DESCRIPTION
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171PART VIAppendices and Index"The appendices provide general information. Some details may not apply to your ZyXEL Device.Setting Up Your Computer’s IP Address  (173)Pop-up Windows, JavaScripts and Java Permissions  (197)IP Addresses and Subnetting  (205)Wireless LANs  (215)Common Services  (229)Legal Information  (233)Customer Support  (237)Index  (243)
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P-870HW-51a v2 User’s Guide 173APPENDIX  A Setting Up Your Computer’s IPAddress"Your specific ZyXEL device may not support all of the operating systems described in this appendix. See the product specifications for more information about which operating systems are supported.This appendix shows you how to configure the IP settings on your computer in order for it to be able to communicate with the other devices on your network. Windows Vista/XP/2000, Mac OS 9/OS X, and all versions of UNIX/LINUX include the software components you need to use TCP/IP on your computer. If you manually assign IP information instead of using a dynamic IP, make sure that your network’s computers have IP addresses that place them in the same subnet.In this appendix, you can set up an IP address for:•Windows XP/NT/2000 on page 174•Windows Vista on page 177•Mac OS X: 10.3 and 10.4 on page 181•Mac OS X: 10.5 on page 184•Linux: Ubuntu 8 (GNOME) on page 187•Linux: openSUSE 10.3 (KDE) on page 191
Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide174Windows XP/NT/2000The following example uses the default Windows XP display theme but can also apply to Windows 2000 and Windows NT.1Click Start > Control Panel.Figure 99   Windows XP: Start Menu2In the Control Panel, click the Network Connections icon.Figure 100   Windows XP: Control Panel
 Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide 1753Right-click Local Area Connection and then select Properties.Figure 101   Windows XP: Control Panel > Network Connections > Properties4On the General tab, select Internet Protocol (TCP/IP) and then click Properties.Figure 102   Windows XP: Local Area Connection Properties
Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide1765The Internet Protocol TCP/IP Properties window opens.Figure 103   Windows XP: Internet Protocol (TCP/IP) Properties6Select Obtain an IP address automatically if your network administrator or ISP assigns your IP address dynamically.Select Use the following IP Address and fill in the IP address, Subnet mask, and Default gateway fields if you have a static IP address that was assigned to you by your network administrator or ISP. You may also have to enter a Preferred DNS server and an Alternate DNS server, if that information was provided.7Click OK to close the Internet Protocol (TCP/IP) Properties window.8Click OK to close the Local Area Connection Properties window.Verifying Settings1Click Start > All Programs > Accessories > Command Prompt.2In the Command Prompt window, type "ipconfig" and then press [ENTER]. You can also go to Start > Control Panel > Network Connections, right-click a network connection, click Status and then click the Support tab to view your IP address and connection information.
 Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide 177Windows VistaThis section shows screens from Windows Vista Professional.1Click Start > Control Panel.Figure 104   Windows Vista: Start Menu2In the Control Panel, click the Network and Internet icon.Figure 105   Windows Vista: Control Panel3Click the Network and Sharing Center icon.Figure 106   Windows Vista: Network And Internet
Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide1784Click Manage network connections.Figure 107   Windows Vista: Network and Sharing Center5Right-click Local Area Connection and then select Properties.Figure 108   Windows Vista: Network and Sharing Center"During this procedure, click Continue whenever Windows displays a screen saying that it needs your permission to continue.
 Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide 1796Select Internet Protocol Version 4 (TCP/IPv4) and then select Properties.Figure 109   Windows Vista: Local Area Connection Properties
Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide1807The Internet Protocol Version 4 (TCP/IPv4) Properties window opens.Figure 110   Windows Vista: Internet Protocol Version 4 (TCP/IPv4) Properties8Select Obtain an IP address automatically if your network administrator or ISP assigns your IP address dynamically.Select Use the following IP Address and fill in the IP address, Subnet mask, and Default gateway fields if you have a static IP address that was assigned to you by your network administrator or ISP. You may also have to enter a Preferred DNS server and an Alternate DNS server, if that information was provided.Click Advanced.9Click OK to close the Internet Protocol (TCP/IP) Properties window.10 Click OK to close the Local Area Connection Properties window.Verifying Settings1Click Start > All Programs > Accessories > Command Prompt.2In the Command Prompt window, type "ipconfig" and then press [ENTER]. You can also go to Start > Control Panel > Network Connections, right-click a network connection, click Status and then click the Support tab to view your IP address and connection information.
 Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide 181Mac OS X: 10.3 and 10.4The screens in this section are from Mac OS X 10.4 but can also apply to 10.3.1Click Apple > System Preferences.Figure 111   Mac OS X 10.4: Apple Menu2In the System Preferences window, click the Network icon.Figure 112   Mac OS X 10.4: System Preferences
Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide1823When the Network preferences pane opens, select Built-in Ethernet from the network connection type list, and then click Configure.Figure 113   Mac OS X 10.4: Network Preferences4For dynamically assigned settings, select Using DHCP from the Configure IPv4 list in the TCP/IP tab.Figure 114   Mac OS X 10.4: Network Preferences > TCP/IP Tab.
 Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide 1835For statically assigned settings, do the following:•From the Configure IPv4 list, select Manually.•In the IP Address field, type your IP address.•In the Subnet Mask field, type your subnet mask.•In the Router field, type the IP address of your device.Figure 115   Mac OS X 10.4: Network Preferences > Ethernet6Click Apply Now and close the window.Verifying SettingsCheck your TCP/IP properties by clicking Applications > Utilities > Network Utilities, and then selecting the appropriate Network Interface from the Info tab.Figure 116   Mac OS X 10.4: Network Utility
Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide184Mac OS X: 10.5The screens in this section are from Mac OS X 10.5.1Click Apple > System Preferences.Figure 117   Mac OS X 10.5: Apple Menu2In System Preferences, click the Network icon.Figure 118   Mac OS X 10.5: Systems Preferences
 Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide 1853When the Network preferences pane opens, select Ethernet from the list of available connection types.Figure 119   Mac OS X 10.5: Network Preferences > Ethernet4From the Configure list, select Using DHCP for dynamically assigned settings.5For statically assigned settings, do the following:•From the Configure list, select Manually.•In the IP Address field, enter your IP address.•In the Subnet Mask field, enter your subnet mask.•In the Router field, enter the IP address of your ZyXEL Device.
Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide186Figure 120   Mac OS X 10.5: Network Preferences > Ethernet6Click Apply and close the window.Verifying SettingsCheck your TCP/IP properties by clicking Applications > Utilities > Network Utilities, and then selecting the appropriate Network interface from the Info tab.Figure 121   Mac OS X 10.5: Network Utility
 Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide 187Linux: Ubuntu 8 (GNOME)This section shows you how to configure your computer’s TCP/IP settings in the GNU Object Model Environment (GNOME) using the Ubuntu 8 Linux distribution. The procedure, screens and file locations may vary depending on your specific distribution, release version, and individual configuration. The following screens use the default Ubuntu 8 installation."Make sure you are logged in as the root administrator. Follow the steps below to configure your computer IP address in GNOME: 1Click System > Administration > Network.Figure 122   Ubuntu 8: System > Administration Menu2When the Network Settings window opens, click Unlock to open the Authenticate window. (By default, the Unlock button is greyed out until clicked.) You cannot make changes to your configuration unless you first enter your admin password.Figure 123   Ubuntu 8: Network Settings > Connections
Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide1883In the Authenticate window, enter your admin account name and password then click the Authenticate button.Figure 124   Ubuntu 8: Administrator Account Authentication4In the Network Settings window, select the connection that you want to configure, then click Properties.Figure 125   Ubuntu 8: Network Settings > Connections
 Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide 1895The Properties dialog box opens.Figure 126   Ubuntu 8: Network Settings > Properties•In the Configuration list, select Automatic Configuration (DHCP) if you have a dynamic IP address.•In the Configuration list, select Static IP address if you have a static IP address. Fill in the IP address, Subnet mask, and Gateway address fields. 6Click OK to save the changes and close the Properties dialog box and return to the Network Settings screen. 7If you know your DNS server IP address(es), click the DNS tab in the Network Settings window and then enter the DNS server information in the fields provided. Figure 127   Ubuntu 8: Network Settings > DNS  8Click the Close button to apply the changes.
Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide190Verifying SettingsCheck your TCP/IP properties by clicking System > Administration > Network Tools, and then selecting the appropriate Network device from the Devices tab.  The Interface Statistics column shows data if your connection is working properly.Figure 128   Ubuntu 8: Network Tools
 Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide 191Linux: openSUSE 10.3 (KDE)This section shows you how to configure your computer’s TCP/IP settings in the K Desktop Environment (KDE) using the openSUSE 10.3 Linux distribution. The procedure, screens and file locations may vary depending on your specific distribution, release version, and individual configuration. The following screens use the default openSUSE 10.3 installation."Make sure you are logged in as the root administrator. Follow the steps below to configure your computer IP address in the KDE:1Click K Menu > Computer > Administrator Settings (YaST).Figure 129   openSUSE 10.3: K Menu > Computer Menu2When the Run as Root - KDE su dialog opens, enter the admin password and click OK.Figure 130   openSUSE 10.3: K Menu > Computer Menu
Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide1923When the YaST Control Center window opens, select Network Devices and then click the Network Card icon.Figure 131   openSUSE 10.3: YaST Control Center4When the Network Settings window opens, click the Overview tab, select the appropriate connection Name from the list, and then click the Configure button. Figure 132   openSUSE 10.3: Network Settings
 Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide 1935When the Network Card Setup window opens, click the Address tabFigure 133   openSUSE 10.3: Network Card Setup6Select Dynamic Address (DHCP) if you have a dynamic IP address.Select Statically assigned IP Address if you have a static IP address. Fill in the IP address, Subnet mask, and Hostname fields.7Click Next to save the changes and close the Network Card Setup window.
Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide1948If you know your DNS server IP address(es), click the Hostname/DNS tab in Network Settings and then enter the DNS server information in the fields provided.Figure 134   openSUSE 10.3: Network Settings9Click Finish to save your settings and close the window.
 Appendix A Setting Up Your Computer’s IP AddressP-870HW-51a v2 User’s Guide 195Verifying SettingsClick the KNetwork Manager icon on the Task bar to check your TCP/IP properties. From the Options sub-menu, select Show Connection Information.Figure 135   openSUSE 10.3: KNetwork ManagerWhen the Connection Status - KNetwork Manager window opens, click the Statistics tab to see if your connection is working properly.Figure 136   openSUSE: Connection Status - KNetwork Manager
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P-870HW-51a v2 User’s Guide 197APPENDIX  B Pop-up Windows, JavaScriptsand Java PermissionsIn order to use the web configurator you need to allow:• Web browser pop-up windows from your device.• JavaScripts (enabled by default).• Java permissions (enabled by default)."Internet Explorer 6 screens are used here. Screens for other Internet Explorer versions may vary.Internet Explorer Pop-up BlockersYou may have to disable pop-up blocking to log into your device. Either disable pop-up blocking (enabled by default in Windows XP SP (Service Pack) 2) or allow pop-up blocking and create an exception for your device’s IP address.Disable Pop-up Blockers1In Internet Explorer, select Tools, Pop-up Blocker and then select Turn Off Pop-up Blocker. Figure 137   Pop-up BlockerYou can also check if pop-up blocking is disabled in the Pop-up Blocker section in the Privacy tab. 1In Internet Explorer, select Tools, Internet Options, Privacy.
Appendix B Pop-up Windows, JavaScripts and Java PermissionsP-870HW-51a v2 User’s Guide1982Clear the Block pop-ups check box in the Pop-up Blocker section of the screen. This disables any web pop-up blockers you may have enabled. Figure 138   Internet Options: Privacy3Click Apply to save this setting.Enable Pop-up Blockers with ExceptionsAlternatively, if you only want to allow pop-up windows from your device, see the following steps.1In Internet Explorer, select Tools, Internet Options and then the Privacy tab. 2Select Settings…to open the Pop-up Blocker Settings screen.
 Appendix B Pop-up Windows, JavaScripts and Java PermissionsP-870HW-51a v2 User’s Guide 199Figure 139   Internet Options: Privacy3Type the IP address of your device (the web page that you do not want to have blocked) with the prefix “http://”. For example, http://192.168.167.1. 4Click Add to move the IP address to the list of Allowed sites.Figure 140   Pop-up Blocker Settings
Appendix B Pop-up Windows, JavaScripts and Java PermissionsP-870HW-51a v2 User’s Guide2005Click Close to return to the Privacy screen. 6Click Apply to save this setting. JavaScriptsIf pages of the web configurator do not display properly in Internet Explorer, check that JavaScripts are allowed. 1In Internet Explorer, click Tools, Internet Options and then the Security tab. Figure 141   Internet Options: Security 2Click the Custom Level... button. 3Scroll down to Scripting. 4Under Active scripting make sure that Enable is selected (the default).5Under Scripting of Java applets make sure that Enable is selected (the default). 6Click OK to close the window.
 Appendix B Pop-up Windows, JavaScripts and Java PermissionsP-870HW-51a v2 User’s Guide 201Figure 142   Security Settings - Java ScriptingJava Permissions1From Internet Explorer, click Tools, Internet Options and then the Security tab. 2Click the Custom Level... button. 3Scroll down to Microsoft VM. 4Under Java permissions make sure that a safety level is selected.5Click OK to close the window.Figure 143   Security Settings - Java
Appendix B Pop-up Windows, JavaScripts and Java PermissionsP-870HW-51a v2 User’s Guide202JAVA (Sun)1From Internet Explorer, click Tools, Internet Options and then the Advanced tab. 2Make sure that Use Java 2 for <applet> under Java (Sun) is selected.3Click OK to close the window.Figure 144   Java (Sun)Mozilla FirefoxMozilla Firefox 2.0 screens are used here. Screens for other versions may vary. You can enable Java, Javascripts and pop-ups in one screen. Click Tools, then click Options in the screen that appears.
 Appendix B Pop-up Windows, JavaScripts and Java PermissionsP-870HW-51a v2 User’s Guide 203Figure 145   Mozilla Firefox: Tools > OptionsClick Content.to show the screen below. Select the check boxes as shown in the following screen.Figure 146   Mozilla Firefox Content Security
Appendix B Pop-up Windows, JavaScripts and Java PermissionsP-870HW-51a v2 User’s Guide204
P-870HW-51a v2 User’s Guide 205APPENDIX  C IP Addresses and SubnettingThis appendix introduces IP addresses and subnet masks. IP addresses identify individual devices on a network. Every networking device (including computers, servers, routers, printers, etc.) needs an IP address to communicate across the network. These networking devices are also known as hosts.Subnet masks determine the maximum number of possible hosts on a network. You can also use subnet masks to divide one network into multiple sub-networks.Introduction to IP AddressesOne part of the IP address is the network number, and the other part is the host ID. In the same way that houses on a street share a common street name, the hosts on a network share a common network number. Similarly, as each house has its own house number, each host on the network has its own unique identifying number - the host ID. Routers use the network number to send packets to the correct network, while the host ID determines to which host on the network the packets are delivered.StructureAn IP address is made up of four parts, written in dotted decimal notation (for example, 192.168.1.1). Each of these four parts is known as an octet. An octet is an eight-digit binary number (for example 11000000, which is 192 in decimal notation). Therefore, each octet has a possible range of 00000000 to 11111111 in binary, or 0 to 255 in decimal.The following figure shows an example IP address in which the first three octets (192.168.1) are the network number, and the fourth octet (16) is the host ID.
Appendix C IP Addresses and SubnettingP-870HW-51a v2 User’s Guide206Figure 147   Network Number and Host IDHow much of the IP address is the network number and how much is the host ID varies according to the subnet mask.  Subnet MasksA subnet mask is used to determine which bits are part of the network number, and which bits are part of the host ID (using a logical AND operation). The term “subnet” is short for “sub-network”.A subnet mask has 32 bits. If a bit in the subnet mask is a “1” then the corresponding bit in the IP address is part of the network number. If a bit in the subnet mask is “0” then the corresponding bit in the IP address is part of the host ID. The following example shows a subnet mask identifying the network number (in bold text) and host ID of an IP address (192.168.1.2 in decimal).By convention, subnet masks always consist of a continuous sequence of ones beginning from the leftmost bit of the mask, followed by a continuous sequence of zeros, for a total number of 32 bits.Subnet masks can be referred to by the size of the network number part (the bits with a “1” value). For example, an “8-bit mask” means that the first 8 bits of the mask are ones and the remaining 24 bits are zeroes.Table 57   IP Address Network Number and Host ID Example1ST OCTET:(192)2ND OCTET:(168)3RD OCTET:(1)4TH OCTET(2)IP Address (Binary) 11000000 10101000 00000001 00000010Subnet Mask (Binary) 11111111 11111111 11111111 00000000Network Number 11000000 10101000 00000001Host ID 00000010
 Appendix C IP Addresses and SubnettingP-870HW-51a v2 User’s Guide 207Subnet masks are expressed in dotted decimal notation just like IP addresses. The following examples show the binary and decimal notation for 8-bit, 16-bit, 24-bit and 29-bit subnet masks. Network SizeThe size of the network number determines the maximum number of possible hosts you can have on your network. The larger the number of network number bits, the smaller the number of remaining host ID bits. An IP address with host IDs of all zeros is the IP address of the network (192.168.1.0 with a 24-bit subnet mask, for example). An IP address with host IDs of all ones is the broadcast address for that network  (192.168.1.255 with a 24-bit subnet mask, for example).As these two IP addresses cannot be used for individual hosts, calculate the maximum number of possible hosts in a network as follows:NotationSince the mask is always a continuous number of ones beginning from the left, followed by a continuous number of zeros for the remainder of the 32 bit mask, you can simply specify the number of ones instead of writing the value of each octet. This is usually specified by writing a “/” followed by the number of bits in the mask after the address. For example, 192.1.1.0 /25 is equivalent to saying 192.1.1.0 with subnet mask 255.255.255.128. The following table shows some possible subnet masks using both notations. Table 58   Subnet MasksBINARYDECIMAL1ST OCTET 2ND OCTET 3RD OCTET 4TH OCTET8-bit mask 11111111 00000000 00000000 00000000 255.0.0.016-bit mask 11111111 11111111 00000000 00000000 255.255.0.024-bit mask 11111111 11111111 11111111 00000000 255.255.255.029-bit mask 11111111 11111111 11111111 11111000 255.255.255.248Table 59   Maximum Host NumbersSUBNET MASK HOST ID SIZE MAXIMUM NUMBER OF HOSTS8 bits 255.0.0.0 24 bits 224 – 2 1677721416 bits 255.255.0.0 16 bits 216 – 2 6553424 bits 255.255.255.0 8 bits 28 – 2 25429 bits 255.255.255.248 3 bits 23 – 2 6Table 60   Alternative Subnet Mask NotationSUBNET MASK ALTERNATIVE NOTATION LAST OCTET (BINARY) LAST OCTET (DECIMAL)255.255.255.0 /24 0000 0000 0255.255.255.128 /25 1000 0000 128
Appendix C IP Addresses and SubnettingP-870HW-51a v2 User’s Guide208SubnettingYou can use subnetting to divide one network into multiple sub-networks. In the following example a network administrator creates two sub-networks to isolate a group of servers from the rest of the company network for security reasons.In this example, the company network address is 192.168.1.0. The first three octets of the address (192.168.1) are the network number, and the remaining octet is the host ID, allowing a maximum of 28 – 2 or 254 possible hosts.The following figure shows the company network before subnetting.  Figure 148   Subnetting Example: Before SubnettingYou can “borrow” one of the host ID bits to divide the network 192.168.1.0 into two separate sub-networks. The subnet mask is now 25 bits (255.255.255.128 or /25).The “borrowed” host ID bit can have a value of either 0 or 1, allowing two subnets; 192.168.1.0 /25 and 192.168.1.128 /25. The following figure shows the company network after subnetting. There are now two sub-networks, A and B. 255.255.255.192 /26 1100 0000 192255.255.255.224 /27 1110 0000 224255.255.255.240 /28 1111 0000 240255.255.255.248 /29 1111 1000 248255.255.255.252 /30 1111 1100 252Table 60   Alternative Subnet Mask Notation (continued)SUBNET MASK ALTERNATIVE NOTATION LAST OCTET (BINARY) LAST OCTET (DECIMAL)
 Appendix C IP Addresses and SubnettingP-870HW-51a v2 User’s Guide 209Figure 149   Subnetting Example: After SubnettingIn a 25-bit subnet the host ID has 7 bits, so each sub-network has a maximum of 27 – 2 or 126 possible hosts (a host ID of all zeroes is the subnet’s address itself, all ones is the subnet’s broadcast address).192.168.1.0 with mask 255.255.255.128 is subnet A itself, and 192.168.1.127 with mask 255.255.255.128 is its broadcast address. Therefore, the lowest IP address that can be assigned to an actual host for subnet A is 192.168.1.1 and the highest is 192.168.1.126. Similarly, the host ID range for subnet B is 192.168.1.129 to 192.168.1.254.Example: Four Subnets The previous example illustrated using a 25-bit subnet mask to divide a 24-bit address into two subnets. Similarly, to divide a 24-bit address into four subnets, you need to “borrow” two host ID bits to give four possible combinations (00, 01, 10 and 11). The subnet mask is 26 bits (11111111.11111111.11111111.11000000) or 255.255.255.192. Each subnet contains 6 host ID bits, giving 26 - 2 or 62 hosts for each subnet (a host ID of all zeroes is the subnet itself, all ones is the subnet’s broadcast address). Table 61   Subnet 1IP/SUBNET MASK NETWORK NUMBER LAST OCTET BIT VALUEIP Address (Decimal) 192.168.1. 0IP Address (Binary) 11000000.10101000.00000001. 00000000Subnet Mask (Binary) 11111111.11111111.11111111. 11000000Subnet Address: 192.168.1.0 Lowest Host ID: 192.168.1.1Broadcast Address: 192.168.1.63 Highest Host ID: 192.168.1.62
Appendix C IP Addresses and SubnettingP-870HW-51a v2 User’s Guide210Example: Eight SubnetsSimilarly, use a 27-bit mask to create eight subnets (000, 001, 010, 011, 100, 101, 110 and 111). The following table shows IP address last octet values for each subnet.Table 62   Subnet 2IP/SUBNET MASK NETWORK NUMBER LAST OCTET BIT VALUEIP Address 192.168.1. 64IP Address (Binary) 11000000.10101000.00000001. 01000000Subnet Mask (Binary) 11111111.11111111.11111111. 11000000Subnet Address: 192.168.1.64 Lowest Host ID: 192.168.1.65Broadcast Address: 192.168.1.127 Highest Host ID: 192.168.1.126Table 63   Subnet 3IP/SUBNET MASK NETWORK NUMBER LAST OCTET BIT VALUEIP Address 192.168.1. 128IP Address (Binary) 11000000.10101000.00000001. 10000000Subnet Mask (Binary) 11111111.11111111.11111111. 11000000Subnet Address: 192.168.1.128 Lowest Host ID: 192.168.1.129Broadcast Address: 192.168.1.191 Highest Host ID: 192.168.1.190Table 64   Subnet 4IP/SUBNET MASK NETWORK NUMBER LAST OCTET BIT VALUEIP Address 192.168.1. 192IP Address (Binary) 11000000.10101000.00000001. 11000000Subnet Mask (Binary) 11111111.11111111.11111111. 11000000Subnet Address: 192.168.1.192 Lowest Host ID: 192.168.1.193Broadcast Address: 192.168.1.255 Highest Host ID: 192.168.1.254Table 65   Eight SubnetsSUBNET SUBNET ADDRESS FIRST ADDRESS LAST ADDRESS BROADCAST ADDRESS1 0 1 30 31232 33 62 63364 65 94 95496 97 126 127
 Appendix C IP Addresses and SubnettingP-870HW-51a v2 User’s Guide 211Subnet PlanningThe following table is a summary for subnet planning on a network with a 24-bit network number.The following table is a summary for subnet planning on a network with a 16-bit network number. 5128 129 158 1596160 161 190 1917192 193 222 2238224 225 254 255Table 65   Eight Subnets (continued)SUBNET SUBNET ADDRESS FIRST ADDRESS LAST ADDRESS BROADCAST ADDRESSTable 66   24-bit Network Number Subnet PlanningNO. “BORROWED” HOST BITS SUBNET MASK NO. SUBNETS NO. HOSTS PER SUBNET1255.255.255.128 (/25) 21262255.255.255.192 (/26) 4623255.255.255.224 (/27) 8304255.255.255.240 (/28) 16 145255.255.255.248 (/29) 32 66255.255.255.252 (/30) 64 27255.255.255.254 (/31) 128 1Table 67   16-bit Network Number Subnet PlanningNO. “BORROWED” HOST BITS SUBNET MASK NO. SUBNETS NO. HOSTS PER SUBNET1255.255.128.0 (/17) 2327662255.255.192.0 (/18) 4163823255.255.224.0 (/19) 881904255.255.240.0 (/20) 16 40945255.255.248.0 (/21) 32 20466255.255.252.0 (/22) 64 10227255.255.254.0 (/23) 128 5108255.255.255.0 (/24) 256 2549255.255.255.128 (/25) 512 12610 255.255.255.192 (/26) 1024 6211 255.255.255.224 (/27) 2048 3012 255.255.255.240 (/28) 4096 1413 255.255.255.248 (/29) 8192 6
Appendix C IP Addresses and SubnettingP-870HW-51a v2 User’s Guide212Configuring IP AddressesWhere you obtain your network number depends on your particular situation. If the ISP or your network administrator assigns you a block of registered IP addresses, follow their instructions in selecting the IP addresses and the subnet mask.If the ISP did not explicitly give you an IP network number, then most likely you have a single user account and the ISP will assign you a dynamic IP address when the connection is established. If this is the case, it is recommended that you select a network number from 192.168.0.0 to 192.168.255.0. The Internet Assigned Number Authority (IANA) reserved this block of addresses specifically for private use; please do not use any other number unless you are told otherwise. You must also enable Network Address Translation (NAT) on the ZyXEL Device. Once you have decided on the network number, pick an IP address for your ZyXEL Device that is easy to remember (for instance, 192.168.1.1) but make sure that no other device on your network is using that IP address.The subnet mask specifies the network number portion of an IP address. Your ZyXEL Device will compute the subnet mask automatically based on the IP address that you entered. You don't need to change the subnet mask computed by the ZyXEL Device unless you are instructed to do otherwise.Private IP AddressesEvery machine on the Internet must have a unique address. If your networks are isolated from the Internet (running only between two branch offices, for example) you can assign any IP addresses to the hosts without problems. However, the Internet Assigned Numbers Authority (IANA) has reserved the following three blocks of IP addresses specifically for private networks:• 10.0.0.0     — 10.255.255.255• 172.16.0.0   — 172.31.255.255• 192.168.0.0 — 192.168.255.255You can obtain your IP address from the IANA, from an ISP, or it can be assigned from a private network. If you belong to a small organization and your Internet access is through an ISP, the ISP can provide you with the Internet addresses for your local networks. On the other hand, if you are part of a much larger organization, you should consult your network administrator for the appropriate IP addresses.Regardless of your particular situation, do not create an arbitrary IP address; always follow the guidelines above. For more information on address assignment, please refer to RFC 1597, Address Allocation for Private Internets and RFC 1466, Guidelines for Management of IP Address Space.14 255.255.255.252 (/30) 16384 215 255.255.255.254 (/31) 32768 1Table 67   16-bit Network Number Subnet Planning (continued)NO. “BORROWED” HOST BITS SUBNET MASK NO. SUBNETS NO. HOSTS PER SUBNET
 Appendix C IP Addresses and SubnettingP-870HW-51a v2 User’s Guide 213IP Address ConflictsEach device on a network must have a unique IP address. Devices with duplicate IP addresses on the same network will not be able to access the Internet or other resources. The devices may also be unreachable through the network. Conflicting Computer IP Addresses ExampleMore than one device can not use the same IP address. In the following example computer A has a static (or fixed) IP address that is the same as the IP address that a DHCP server assigns to computer B which is a DHCP client. Neither can access the Internet. This problem can be solved by assigning a different static IP address to computer A or setting computer A to obtain an IP address automatically.  Figure 150   Conflicting Computer IP Addresses ExampleConflicting Router IP Addresses ExampleSince a router connects different networks, it must have interfaces using different network numbers. For example, if a router is set between a LAN and the Internet (WAN), the router’s LAN and WAN addresses must be on different subnets. In the following example, the LAN and WAN are on the same subnet. The LAN computers cannot access the Internet because the router cannot route between networks.Figure 151   Conflicting Computer IP Addresses Example
Appendix C IP Addresses and SubnettingP-870HW-51a v2 User’s Guide214Conflicting Computer and Router IP Addresses ExampleMore than one device can not use the same IP address. In the following example, the computer and the router’s LAN port both use 192.168.1.1 as the IP address. The computer cannot access the Internet. This problem can be solved by assigning a different IP address to the computer or the router’s LAN port.  Figure 152   Conflicting Computer and Router IP Addresses Example
P-870HW-51a v2 User’s Guide 215APPENDIX  D Wireless LANsWireless LAN TopologiesThis section discusses ad-hoc and infrastructure wireless LAN topologies.Ad-hoc Wireless LAN ConfigurationThe simplest WLAN configuration is an independent (Ad-hoc) WLAN that connects a set of computers with wireless adapters (A, B, C). Any time two or more wireless adapters are within range of each other, they can set up an independent network, which is commonly referred to as an ad-hoc network or Independent Basic Service Set (IBSS). The following diagram shows an example of notebook computers using wireless adapters to form an ad-hoc wireless LAN. Figure 153   Peer-to-Peer Communication in an Ad-hoc NetworkBSSA Basic Service Set (BSS) exists when all communications between wireless clients or between a wireless client and a wired network client go through one access point (AP). Intra-BSS traffic is traffic between wireless clients in the BSS. When Intra-BSS is enabled, wireless client A and B can access the wired network and communicate with each other. When Intra-BSS is disabled, wireless client A and B can still access the wired network but cannot communicate with each other.
Appendix D Wireless LANsP-870HW-51a v2 User’s Guide216Figure 154   Basic Service SetESSAn Extended Service Set (ESS) consists of a series of overlapping BSSs, each containing an access point, with each access point connected together by a wired network. This wired connection between APs is called a Distribution System (DS).This type of wireless LAN topology is called an Infrastructure WLAN. The Access Points not only provide communication with the wired network but also mediate wireless network traffic in the immediate neighborhood. An ESSID (ESS IDentification) uniquely identifies each ESS. All access points and their associated wireless clients within the same ESS must have the same ESSID in order to communicate.
 Appendix D Wireless LANsP-870HW-51a v2 User’s Guide 217Figure 155   Infrastructure WLANChannelA channel is the radio frequency(ies) used by wireless devices to transmit and receive data. Channels available depend on your geographical area. You may have a choice of channels (for your region) so you should use a channel different from an adjacent AP (access point) to reduce interference. Interference occurs when radio signals from different access points overlap causing interference and degrading performance.Adjacent channels partially overlap however. To avoid interference due to overlap, your AP should be on a channel at least five channels away from a channel that an adjacent AP is using. For example, if your region has 11 channels and an adjacent AP is using channel 1, then you need to select a channel between 6 or 11.RTS/CTSA hidden node occurs when two stations are within range of the same access point, but are not within range of each other. The following figure illustrates a hidden node. Both stations (STA) are within range of the access point (AP) or wireless gateway, but out-of-range of each other, so they cannot "hear" each other, that is they do not know if the channel is currently being used. Therefore, they are considered hidden from each other.
Appendix D Wireless LANsP-870HW-51a v2 User’s Guide218Figure 156    RTS/CTSWhen station A sends data to the AP, it might not know that the station B is already using the channel. If these two stations send data at the same time, collisions may occur when both sets of data arrive at the AP at the same time, resulting in a loss of messages for both stations.RTS/CTS is designed to prevent collisions due to hidden nodes. An RTS/CTS defines the biggest size data frame you can send before an RTS (Request To Send)/CTS (Clear to Send) handshake is invoked.When a data frame exceeds the RTS/CTS value you set (between 0 to 2432 bytes), the station that wants to transmit this frame must first send an RTS (Request To Send) message to the AP for permission to send it. The AP then responds with a CTS (Clear to Send) message to all other stations within its range to notify them to defer their transmission. It also reserves and confirms with the requesting station the time frame for the requested transmission.Stations can send frames smaller than the specified RTS/CTS directly to the AP without the RTS (Request To Send)/CTS (Clear to Send) handshake. You should only configure RTS/CTS if the possibility of hidden nodes exists on your network and the "cost" of resending large frames is more than the extra network overhead involved in the RTS (Request To Send)/CTS (Clear to Send) handshake. If the RTS/CTS value is greater than the Fragmentation Threshold value (see next), then the RTS (Request To Send)/CTS (Clear to Send) handshake will never occur as data frames will be fragmented before they reach RTS/CTS size. "Enabling the RTS Threshold causes redundant network overhead that could negatively affect the throughput performance instead of providing a remedy.Fragmentation ThresholdA Fragmentation Threshold is the maximum data fragment size (between 256 and 2432 bytes) that can be sent in the wireless network before the AP will fragment the packet into smaller data frames.A large Fragmentation Threshold is recommended for networks not prone to interference while you should set a smaller threshold for busy networks or networks that are prone to interference.
 Appendix D Wireless LANsP-870HW-51a v2 User’s Guide 219If the Fragmentation Threshold value is smaller than the RTS/CTS value (see previously) you set then the RTS (Request To Send)/CTS (Clear to Send) handshake will never occur as data frames will be fragmented before they reach RTS/CTS size.Preamble TypePreamble is used to signal that data is coming to the receiver. Short and long refer to the length of the synchronization field in a packet.Short preamble increases performance as less time sending preamble means more time for sending data. All IEEE 802.11 compliant wireless adapters support long preamble, but not all support short preamble. Use long preamble if you are unsure what preamble mode other wireless devices on the network support, and to provide more reliable communications in busy wireless networks. Use short preamble if you are sure all wireless devices on the network support it, and to provide more efficient communications.Use the dynamic setting to automatically use short preamble when all wireless devices on the network support it, otherwise the ZyXEL Device uses long preamble."The wireless devices MUST use the same preamble mode in order to communicate.IEEE 802.11g Wireless LANIEEE 802.11g is fully compatible with the IEEE 802.11b standard. This means an IEEE 802.11b adapter can interface directly with an IEEE 802.11g access point (and vice versa) at 11 Mbps or lower depending on range. IEEE 802.11g has several intermediate rate steps between the maximum and minimum data rates. The IEEE 802.11g data rate and modulation are as follows:Wireless Security OverviewWireless security is vital to your network to protect wireless communication between wireless clients, access points and the wired network.Table 68   IEEE 802.11gDATA RATE (MBPS) MODULATION1 DBPSK (Differential Binary Phase Shift Keyed)2 DQPSK (Differential Quadrature Phase Shift Keying)5.5 / 11 CCK (Complementary Code Keying) 6/9/12/18/24/36/48/54 OFDM (Orthogonal Frequency Division Multiplexing)
Appendix D Wireless LANsP-870HW-51a v2 User’s Guide220Wireless security methods available on the ZyXEL Device are data encryption, wireless client authentication, restricting access by device MAC address and hiding the ZyXEL Device identity.The following figure shows the relative effectiveness of these wireless security methods available on your ZyXEL Device."You must enable the same wireless security settings on the ZyXEL Device and on all wireless clients that you want to associate with it. IEEE 802.1xIn June 2001, the IEEE 802.1x standard was designed to extend the features of IEEE 802.11 to support extended authentication as well as providing additional accounting and control features. It is supported by Windows XP and a number of network devices. Some advantages of IEEE 802.1x are:• User based identification that allows for roaming.• Support for RADIUS (Remote Authentication Dial In User Service, RFC 2138, 2139) for centralized user profile and accounting management on a network RADIUS server. • Support for EAP (Extensible Authentication Protocol, RFC 2486) that allows additional authentication methods to be deployed with no changes to the access point or the wireless clients. RADIUSRADIUS is based on a client-server model that supports authentication, authorization and accounting. The access point is the client and the server is the RADIUS server. The RADIUS server handles the following tasks:• Authentication Determines the identity of the users.• AuthorizationTable 69   Wireless Security LevelsSECURITY LEVEL SECURITY TYPELeast       S e c u r e                                                                                      Most SecureUnique SSID (Default)Unique SSID with Hide SSID EnabledMAC Address FilteringWEP EncryptionIEEE802.1x EAP with RADIUS Server AuthenticationWi-Fi Protected Access (WPA)WPA2
 Appendix D Wireless LANsP-870HW-51a v2 User’s Guide 221Determines the network services available to authenticated users once they are connected to the network.• AccountingKeeps track of the client’s network activity. RADIUS is a simple package exchange in which your AP acts as a message relay between the wireless client and the network RADIUS server. Types of RADIUS MessagesThe following types of RADIUS messages are exchanged between the access point and the RADIUS server for user authentication:• Access-RequestSent by an access point requesting authentication.• Access-RejectSent by a RADIUS server rejecting access.• Access-AcceptSent by a RADIUS server allowing access. • Access-ChallengeSent by a RADIUS server requesting more information in order to allow access. The access point sends a proper response from the user and then sends another Access-Request message. The following types of RADIUS messages are exchanged between the access point and the RADIUS server for user accounting:• Accounting-RequestSent by the access point requesting accounting.• Accounting-ResponseSent by the RADIUS server to indicate that it has started or stopped accounting. In order to ensure network security, the access point and the RADIUS server use a shared secret key, which is a password, they both know. The key is not sent over the network. In addition to the shared key, password information exchanged is also encrypted to protect the network from unauthorized access. Types of EAP Authentication This section discusses some popular authentication types: EAP-MD5, EAP-TLS, EAP-TTLS, PEAP and LEAP. Your wireless LAN device may not support all authentication types. EAP (Extensible Authentication Protocol) is an authentication protocol that runs on top of the IEEE 802.1x transport mechanism in order to support multiple types of user authentication. By using EAP to interact with an EAP-compatible RADIUS server, an access point helps a wireless station and a RADIUS server perform authentication. The type of authentication you use depends on the RADIUS server and an intermediary AP(s) that supports IEEE 802.1x. .
Appendix D Wireless LANsP-870HW-51a v2 User’s Guide222For EAP-TLS authentication type, you must first have a wired connection to the network and obtain the certificate(s) from a certificate authority (CA). A certificate (also called digital IDs) can be used to authenticate users and a CA issues certificates and guarantees the identity of each certificate owner.EAP-MD5 (Message-Digest Algorithm 5)MD5 authentication is the simplest one-way authentication method. The authentication server sends a challenge to the wireless client. The wireless client ‘proves’ that it knows the password by encrypting the password with the challenge and sends back the information. Password is not sent in plain text. However, MD5 authentication has some weaknesses. Since the authentication server needs to get the plaintext passwords, the passwords must be stored. Thus someone other than the authentication server may access the password file. In addition, it is possible to impersonate an authentication server as MD5 authentication method does not perform mutual authentication. Finally, MD5 authentication method does not support data encryption with dynamic session key. You must configure WEP encryption keys for data encryption. EAP-TLS (Transport Layer Security)With EAP-TLS, digital certifications are needed by both the server and the wireless clients for mutual authentication. The server presents a certificate to the client. After validating the identity of the server, the client sends a different certificate to the server. The exchange of certificates is done in the open before a secured tunnel is created. This makes user identity vulnerable to passive attacks. A digital certificate is an electronic ID card that authenticates the sender’s identity. However, to implement EAP-TLS, you need a Certificate Authority (CA) to handle certificates, which imposes a management overhead. EAP-TTLS (Tunneled Transport Layer Service) EAP-TTLS is an extension of the EAP-TLS authentication that uses certificates for only the server-side authentications to establish a secure connection. Client authentication is then done by sending username and password through the secure connection, thus client identity is protected. For client authentication, EAP-TTLS supports EAP methods and legacy authentication methods such as PAP, CHAP, MS-CHAP and MS-CHAP v2. PEAP (Protected EAP)   Like EAP-TTLS, server-side certificate authentication is used to establish a secure connection, then use simple username and password methods through the secured connection to authenticate the clients, thus hiding client identity. However, PEAP only supports EAP methods, such as EAP-MD5, EAP-MSCHAPv2 and EAP-GTC (EAP-Generic Token Card), for client authentication. EAP-GTC is implemented only by Cisco.LEAPLEAP (Lightweight Extensible Authentication Protocol) is a Cisco implementation of IEEE 802.1x.
 Appendix D Wireless LANsP-870HW-51a v2 User’s Guide 223Dynamic WEP Key ExchangeThe AP maps a unique key that is generated with the RADIUS server. This key expires when the wireless connection times out, disconnects or reauthentication times out. A new WEP key is generated each time reauthentication is performed.If this feature is enabled, it is not necessary to configure a default encryption key in the wireless security configuration screen. You may still configure and store keys, but they will not be used while dynamic WEP is enabled."EAP-MD5 cannot be used with Dynamic WEP Key ExchangeFor added security, certificate-based authentications (EAP-TLS, EAP-TTLS and PEAP) use dynamic keys for data encryption. They are often deployed in corporate environments, but for public deployment, a simple user name and password pair is more practical. The following table is a comparison of the features of authentication types.WPA and WPA2Wi-Fi Protected Access (WPA) is a subset of the IEEE 802.11i standard. WPA2 (IEEE 802.11i) is a wireless security standard that defines stronger encryption, authentication and key management than WPA. Key differences between WPA or WPA2 and WEP are improved data encryption and user authentication.If both an AP and the wireless clients support WPA2 and you have an external RADIUS server, use WPA2 for stronger data encryption. If you don't have an external RADIUS server, you should use WPA2-PSK (WPA2-Pre-Shared Key) that only requires a single (identical) password entered into each access point, wireless gateway and wireless client. As long as the passwords match, a wireless client will be granted access to a WLAN. If the AP or the wireless clients do not support WPA2, just use WPA or WPA-PSK depending on whether you have an external RADIUS server or not.Select WEP only when the AP and/or wireless clients do not support WPA or WPA2. WEP is less secure than WPA or WPA2.Table 70   Comparison of EAP Authentication TypesEAP-MD5 EAP-TLS EAP-TTLS PEAP LEAPMutual Authentication No Yes Yes Yes YesCertificate – Client No Yes Optional Optional NoCertificate – Server No Yes Yes Yes NoDynamic Key Exchange No Yes Yes Yes YesCredential Integrity None Strong Strong Strong ModerateDeployment Difficulty Easy Hard Moderate Moderate ModerateClient Identity Protection No No Yes Yes No
Appendix D Wireless LANsP-870HW-51a v2 User’s Guide224Encryption WPA improves data encryption by using Temporal Key Integrity Protocol (TKIP), Message Integrity Check (MIC) and IEEE 802.1x. WPA2 also uses TKIP when required for compatibility reasons, but offers stronger encryption than TKIP with Advanced Encryption Standard (AES) in the Counter mode with Cipher block chaining Message authentication code Protocol (CCMP).TKIP uses 128-bit keys that are dynamically generated and distributed by the authentication server. AES (Advanced Encryption Standard) is a block cipher that uses a 256-bit mathematical algorithm called Rijndael. They both include a per-packet key mixing function, a Message Integrity Check (MIC) named Michael, an extended initialization vector (IV) with sequencing rules, and a re-keying mechanism.WPA and WPA2 regularly change and rotate the encryption keys so that the same encryption key is never used twice. The RADIUS server distributes a Pairwise Master Key (PMK) key to the AP that then sets up a key hierarchy and management system, using the PMK to dynamically generate unique data encryption keys to encrypt every data packet that is wirelessly communicated between the AP and the wireless clients. This all happens in the background automatically.The Message Integrity Check (MIC) is designed to prevent an attacker from capturing data packets, altering them and resending them. The MIC provides a strong mathematical function in which the receiver and the transmitter each compute and then compare the MIC. If they do not match, it is assumed that the data has been tampered with and the packet is dropped. By generating unique data encryption keys for every data packet and by creating an integrity checking mechanism (MIC), with TKIP and AES it is more difficult to decrypt data on a Wi-Fi network than WEP and difficult for an intruder to break into the network. The encryption mechanisms used for WPA(2) and WPA(2)-PSK are the same. The only difference between the two is that WPA(2)-PSK uses a simple common password, instead of user-specific credentials. The common-password approach makes WPA(2)-PSK susceptible to brute-force password-guessing attacks but it’s still an improvement over WEP as it employs a consistent, single, alphanumeric password to derive a PMK which is used to generate unique temporal encryption keys. This prevent all wireless devices sharing the same encryption keys. (a weakness of WEP)User Authentication WPA and WPA2 apply IEEE 802.1x and Extensible Authentication Protocol (EAP) to authenticate wireless clients using an external RADIUS database. WPA2 reduces the number of key exchange messages from six to four (CCMP 4-way handshake) and shortens the time required to connect to a network. Other WPA2 authentication features that are different from WPA include key caching and pre-authentication. These two features are optional and may not be supported in all wireless devices.Key caching allows a wireless client to store the PMK it derived through a successful authentication with an AP. The wireless client uses the PMK when it tries to connect to the same AP and does not need to go with the authentication process again.Pre-authentication enables fast roaming by allowing the wireless client (already connecting to an AP) to perform IEEE 802.1x authentication with another AP before connecting to it.
 Appendix D Wireless LANsP-870HW-51a v2 User’s Guide 225Wireless Client WPA SupplicantsA wireless client supplicant is the software that runs on an operating system instructing the wireless client how to use WPA. At the time of writing, the most widely available supplicant is the WPA patch for Windows XP, Funk Software's Odyssey client. The Windows XP patch is a free download that adds WPA capability to Windows XP's built-in "Zero Configuration" wireless client. However, you must run Windows XP to use it. WPA(2) with RADIUS Application ExampleTo set up WPA(2), you need the IP address of the RADIUS server, its port number (default is 1812), and the RADIUS shared secret. A WPA(2) application example with an external RADIUS server looks as follows. "A" is the RADIUS server. "DS" is the distribution system.1The AP passes the wireless client's authentication request to the RADIUS server.2The RADIUS server then checks the user's identification against its database and grants or denies network access accordingly.3A 256-bit Pairwise Master Key (PMK) is derived from the authentication process by the RADIUS server and the client.4The RADIUS server distributes the PMK to the AP. The AP then sets up a key hierarchy and management system, using the PMK to dynamically generate unique data encryption keys. The keys are used to encrypt every data packet that is wirelessly communicated between the AP and the wireless clients.Figure 157   WPA(2) with RADIUS Application ExampleWPA(2)-PSK Application ExampleA WPA(2)-PSK application looks as follows.1First enter identical passwords into the AP and all wireless clients. The Pre-Shared Key (PSK) must consist of between 8 and 63 ASCII characters or 64 hexadecimal characters (including spaces and symbols).2The AP checks each wireless client's password and allows it to join the network only if the password matches.
Appendix D Wireless LANsP-870HW-51a v2 User’s Guide2263The AP and wireless clients generate a common PMK (Pairwise Master Key). The key itself is not sent over the network, but is derived from the PSK and the SSID. 4The AP and wireless clients use the TKIP or AES encryption process, the PMK and information exchanged in a handshake to create temporal encryption keys. They use these keys to encrypt data exchanged between them.Figure 158   WPA(2)-PSK AuthenticationSecurity Parameters SummaryRefer to this table to see what other security parameters you should configure for each authentication method or key management protocol type. MAC address filters are not dependent on how you configure these security features.Table 71   Wireless Security Relational MatrixAUTHENTICATION METHOD/ KEY MANAGEMENT PROTOCOLENCRYPTION METHOD ENTER MANUAL KEY IEEE 802.1XOpen None No DisableEnable without Dynamic WEP KeyOpen WEP No           Enable with Dynamic WEP KeyYes Enable without Dynamic WEP KeyYes DisableShared WEP  No           Enable with Dynamic WEP KeyYes Enable without Dynamic WEP KeyYes DisableWPA  TKIP/AES No EnableWPA-PSK  TKIP/AES Yes DisableWPA2 TKIP/AES No EnableWPA2-PSK  TKIP/AES Yes Disable
 Appendix D Wireless LANsP-870HW-51a v2 User’s Guide 227Antenna OverviewAn antenna couples RF signals onto air. A transmitter within a wireless device sends an RF signal to the antenna, which propagates the signal through the air. The antenna also operates in reverse by capturing RF signals from the air. Positioning the antennas properly increases the range and coverage area of a wireless LAN. Antenna CharacteristicsFrequencyAn antenna in the frequency of 2.4GHz (IEEE 802.11b and IEEE 802.11g) or 5GHz (IEEE 802.11a) is needed to communicate efficiently in a wireless LANRadiation PatternA radiation pattern is a diagram that allows you to visualize the shape of the antenna’s coverage area. Antenna GainAntenna gain, measured in dB (decibel), is the increase in coverage within the RF beam width. Higher antenna gain improves the range of the signal for better communications. For an indoor site, each 1 dB increase in antenna gain results in a range increase of approximately 2.5%. For an unobstructed outdoor site, each 1dB increase in gain results in a range increase of approximately 5%. Actual results may vary depending on the network environment. Antenna gain is sometimes specified in dBi, which is how much the antenna increases the signal power compared to using an isotropic antenna. An isotropic antenna is a theoretical perfect antenna that sends out radio signals equally well in all directions. dBi represents the true gain that the antenna provides.   Types of Antennas for WLANThere are two types of antennas used for wireless LAN applications.• Omni-directional antennas send the RF signal out in all directions on a horizontal plane. The coverage area is torus-shaped (like a donut) which makes these antennas ideal for a room environment. With a wide coverage area, it is possible to make circular overlapping coverage areas with multiple access points. • Directional antennas concentrate the RF signal in a beam, like a flashlight does with the light from its bulb. The angle of the beam determines the width of the coverage pattern. Angles typically range from 20 degrees (very directional) to 120 degrees (less directional). Directional antennas are ideal for hallways and outdoor point-to-point applications.
Appendix D Wireless LANsP-870HW-51a v2 User’s Guide228Positioning AntennasIn general, antennas should be mounted as high as practically possible and free of obstructions. In point-to–point application, position both antennas at the same height and in a direct line of sight to each other to attain the best performance. For omni-directional antennas mounted on a table, desk, and so on, point the antenna up. For omni-directional antennas mounted on a wall or ceiling, point the antenna down. For a single AP application, place omni-directional antennas as close to the center of the coverage area as possible. For directional antennas, point the antenna in the direction of the desired coverage area.
P-870HW-51a v2 User’s Guide 229APPENDIX  E Common ServicesThe following table lists some commonly-used services and their associated protocols and port numbers. For a comprehensive list of port numbers, ICMP type/code numbers and services, visit the IANA (Internet Assigned Number Authority) web site. •Name: This is a short, descriptive name for the service. You can use this one or create a different one, if you like.•Protocol: This is the type of IP protocol used by the service. If this is TCP/UDP, then the service uses the same port number with TCP and UDP. If this is USER-DEFINED, the Port(s) is the IP protocol number, not the port number.•Port(s): This value depends on the Protocol. Please refer to RFC 1700 for further information about port numbers.• If the Protocol is TCP, UDP, or TCP/UDP, this is the IP port number.• If the Protocol is USER, this is the IP protocol number.•Description: This is a brief explanation of the applications that use this service or the situations in which this service is used.Table 72   Commonly Used ServicesNAME PROTOCOL PORT(S) DESCRIPTIONAH (IPSEC_TUNNEL) User-Defined 51 The IPSEC AH (Authentication Header) tunneling protocol uses this service.AIM/New-ICQ TCP 5190 AOL’s Internet Messenger service. It is also used as a listening port by ICQ.AUTH TCP 113 Authentication protocol used by some servers.BGP TCP 179 Border Gateway Protocol.BOOTP_CLIENT UDP 68 DHCP Client.BOOTP_SERVER UDP 67 DHCP Server.CU-SEEME TCPUDP764824032A popular videoconferencing solution from White Pines Software.DNS TCP/UDP 53 Domain Name Server, a service that matches web names (for example www.zyxel.com) to IP numbers.ESP (IPSEC_TUNNEL) User-Defined 50 The IPSEC ESP (Encapsulation Security Protocol) tunneling protocol uses this service.FINGER TCP 79 Finger is a UNIX or Internet related command that can be used to find out if a user is logged on.
Appendix E Common ServicesP-870HW-51a v2 User’s Guide230FTP TCPTCP2021File Transfer Program, a program to enable fast transfer of files, including large files that may not be possible by e-mail.H.323 TCP 1720 NetMeeting uses this protocol.HTTP TCP 80 Hyper Text Transfer Protocol - a client/server protocol for the world wide web.HTTPS TCP 443 HTTPS is a secured http session often used in e-commerce.ICMP User-Defined 1Internet Control Message Protocol is often used for diagnostic or routing purposes.ICQ UDP 4000 This is a popular Internet chat program.IGMP (MULTICAST) User-Defined 2Internet Group Management Protocol is used when sending packets to a specific group of hosts.IKE UDP 500 The Internet Key Exchange algorithm is used for key distribution and management.IRC TCP/UDP 6667 This is another popular Internet chat program.MSN Messenger TCP 1863 Microsoft Networks’ messenger service uses this protocol. NEW-ICQ TCP 5190 An Internet chat program.NEWS  TCP 144 A protocol for news groups.NFS UDP 2049 Network File System - NFS is a client/server distributed file service that provides transparent file sharing for network environments.NNTP TCP 119 Network News Transport Protocol is the delivery mechanism for the USENET newsgroup service.PING User-Defined 1Packet INternet Groper is a protocol that sends out ICMP echo requests to test whether or not a remote host is reachable.POP3 TCP 110 Post Office Protocol version 3 lets a client computer get e-mail from a POP3 server through a temporary connection (TCP/IP or other).PPTP TCP 1723 Point-to-Point Tunneling Protocol enables secure transfer of data over public networks. This is the control channel.PPTP_TUNNEL (GRE) User-Defined 47 PPTP (Point-to-Point Tunneling Protocol) enables secure transfer of data over public networks. This is the data channel.RCMD TCP 512 Remote Command Service.REAL_AUDIO TCP 7070 A streaming audio service that enables real time sound over the web.REXEC TCP 514 Remote Execution Daemon.RLOGIN TCP 513 Remote Login.RTELNET TCP 107 Remote Telnet.Table 72   Commonly Used Services (continued)NAME PROTOCOL PORT(S) DESCRIPTION
 Appendix E Common ServicesP-870HW-51a v2 User’s Guide 231RTSP TCP/UDP 554 The Real Time Streaming (media control) Protocol (RTSP) is a remote control for multimedia on the Internet. SFTP TCP 115 Simple File Transfer Protocol.SMTP TCP 25 Simple Mail Transfer Protocol is the message-exchange standard for the Internet. SMTP enables you to move messages from one e-mail server to another.SNMP TCP/UDP 161 Simple Network Management Program.SNMP-TRAPS TCP/UDP 162 Traps for use with the SNMP (RFC:1215).SQL-NET TCP 1521 Structured Query Language is an interface to access data on many different types of database systems, including mainframes, midrange systems, UNIX systems and network servers.SSH TCP/UDP 22 Secure Shell Remote Login Program.STRM WORKS UDP 1558 Stream Works Protocol.SYSLOG UDP 514 Syslog allows you to send system logs to a UNIX server.TACACS UDP 49 Login Host Protocol used for (Terminal Access Controller Access Control System).TELNET TCP 23 Telnet is the login and terminal emulation protocol common on the Internet and in UNIX environments. It operates over TCP/IP networks. Its primary function is to allow users to log into remote host systems.TFTP UDP 69 Trivial File Transfer Protocol is an Internet file transfer protocol similar to FTP, but uses the UDP (User Datagram Protocol) rather than TCP (Transmission Control Protocol).VDOLIVE TCP 7000 Another videoconferencing solution.Table 72   Commonly Used Services (continued)NAME PROTOCOL PORT(S) DESCRIPTION
Appendix E Common ServicesP-870HW-51a v2 User’s Guide232
P-870HW-51a v2 User’s Guide 233APPENDIX  F Legal InformationCopyrightCopyright © 2008 by ZyXEL Communications Corporation.The contents of this publication may not be reproduced in any part or as a whole, transcribed, stored in a retrieval system, translated into any language, or transmitted in any form or by any means, electronic, mechanical, magnetic, optical, chemical, photocopying, manual, or otherwise, without the prior written permission of ZyXEL Communications Corporation.Published by ZyXEL Communications Corporation. All rights reserved.DisclaimerZyXEL does not assume any liability arising out of the application or use of any products, or software described herein. Neither does it convey any license under its patent rights nor the patent rights of others. ZyXEL further reserves the right to make changes in any products described herein without notice. This publication is subject to change without notice.TrademarksZyNOS (ZyXEL Network Operating System) is a registered trademark of ZyXEL Communications, Inc. Other trademarks mentioned in this publication are used for identification purposes only and may be properties of their respective owners.Certifications Federal Communications Commission (FCC) Interference StatementThe device complies with Part 15 of FCC rules. Operation is subject to the following two conditions:• This device may not cause harmful interference.• This device must accept any interference received, including interference that may cause undesired operations.This device has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This device generates, uses, and can radiate radio frequency energy, and if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
Appendix F Legal InformationP-870HW-51a v2 User’s Guide234If this device does cause harmful interference to radio/television reception, which can be determined by turning the device off and on, the user is encouraged to try to correct the interference by one or more of the following measures:1Reorient or relocate the receiving antenna.2Increase the separation between the equipment and the receiver.3Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.4Consult the dealer or an experienced radio/TV technician for help.FCC Radiation Exposure Statement• This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter. • IEEE 802.11b or 802.11g operation of this product in the U.S.A. is firmware-limited to channels 1 through 11. • To comply with FCC RF exposure compliance requirements, a separation distance of at least 20 cm must be maintained between the antenna of this device and all persons. 注意 !依據  低功率電波輻射性電機管理辦法第十二條  經型式認證合格之低功率射頻電機,非經許可,公司、商號或使用者均不得擅自變更頻率、加大功率或變更原設計之特性及功能。第十四條  低功率射頻電機之使用不得影響飛航安全及干擾合法通信;經發現有干擾現象時,應立即停用,並改善至無干擾時方得繼續使用。前項合法通信,指依電信規定作業之無線電信。低功率射頻電機須忍受合法通信或工業、科學及醫療用電波輻射性電機設備之干擾。 本機限在不干擾合法電臺與不受被干擾保障條件下於室內使用。 減少電磁波影響,請妥適使用。 Notices Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.This device has been designed for the WLAN 2.4 GHz network throughout the EC region and Switzerland, with restrictions in France. 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.Viewing Certifications1Go to http://www.zyxel.com.2Select your product on the ZyXEL home page to go to that product's page.
 Appendix F Legal InformationP-870HW-51a v2 User’s Guide 2353Select the certification you wish to view from this page.ZyXEL Limited WarrantyZyXEL warrants to the original end user (purchaser) that this product is free from any defects in materials or workmanship for a period of up to two years from the date of purchase. During the warranty period, and upon proof of purchase, should the product have indications of failure due to faulty workmanship and/or materials, ZyXEL will, at its discretion, repair or replace the defective products or components without charge for either parts or labor, and to whatever extent it shall deem necessary to restore the product or components to proper operating condition. Any replacement will consist of a new or re-manufactured functionally equivalent product of equal or higher value, and will be solely at the discretion of ZyXEL. This warranty shall not apply if the product has been modified, misused, tampered with, damaged by an act of God, or subjected to abnormal working conditions.NoteRepair or replacement, as provided under this warranty, is the exclusive remedy of the purchaser. This warranty is in lieu of all other warranties, express or implied, including any implied warranty of merchantability or fitness for a particular use or purpose. ZyXEL shall in no event be held liable for indirect or consequential damages of any kind to the purchaser.To obtain the services of this warranty, contact your vendor. You may also refer to the warranty policy for the region in which you bought the device at http://www.zyxel.com/web/support_warranty_info.php.RegistrationRegister your product online to receive e-mail notices of firmware upgrades and information at www.zyxel.com.
Appendix F Legal InformationP-870HW-51a v2 User’s Guide236
P-870HW-51a v2 User’s Guide 237APPENDIX  G Customer SupportIn the event of problems that cannot be solved by using this manual, you should contact your vendor. If you cannot contact your vendor, then contact a ZyXEL office for the region in which you bought the device. Regional offices are listed below (see also http://www.zyxel.com/web/contact_us.php). Please have the following information ready when you contact an office.Required Information• Product model and serial number.• Warranty Information.• Date that you received your device.• Brief description of the problem and the steps you took to solve it.“+” is the (prefix) number you dial to make an international telephone call.Corporate Headquarters (Worldwide)• Support E-mail: support@zyxel.com.tw• Sales E-mail: sales@zyxel.com.tw• Telephone: +886-3-578-3942• Fax: +886-3-578-2439• Web: www.zyxel.com• Regular Mail: ZyXEL Communications Corp., 6 Innovation Road II, Science Park, Hsinchu 300, TaiwanChina - ZyXEL Communications (Beijing) Corp.• Support E-mail: cso.zycn@zyxel.cn• Sales E-mail: sales@zyxel.cn• Telephone: +86-010-82800646• Fax: +86-010-82800587• Address: 902, Unit B, Horizon Building, No.6, Zhichun Str, Haidian District, Beijing• Web: http://www.zyxel.cnChina - ZyXEL Communications (Shanghai) Corp.• Support E-mail: cso.zycn@zyxel.cn• Sales E-mail: sales@zyxel.cn• Telephone: +86-021-61199055• Fax: +86-021-52069033
Appendix G Customer SupportP-870HW-51a v2 User’s Guide238• Address: 1005F, ShengGao International Tower, No.137 XianXia Rd., Shanghai• Web: http://www.zyxel.cnCosta Rica• Support E-mail: soporte@zyxel.co.cr• Sales E-mail: sales@zyxel.co.cr• Telephone: +506-2017878• Fax: +506-2015098• Web: www.zyxel.co.cr• Regular Mail: ZyXEL Costa Rica, Plaza Roble Escazú, Etapa El Patio, Tercer Piso, San José, Costa RicaCzech Republic• E-mail: info@cz.zyxel.com• Telephone: +420-241-091-350• Fax: +420-241-091-359• Web: www.zyxel.cz• Regular Mail: ZyXEL Communications, Czech s.r.o., Modranská 621, 143 01 Praha 4 - Modrany, Ceská RepublikaDenmark• Support E-mail: support@zyxel.dk• Sales E-mail: sales@zyxel.dk• Telephone: +45-39-55-07-00• Fax: +45-39-55-07-07• Web: www.zyxel.dk • Regular Mail: ZyXEL Communications A/S, Columbusvej, 2860 Soeborg, DenmarkFinland• Support E-mail: support@zyxel.fi• Sales E-mail: sales@zyxel.fi• Telephone: +358-9-4780-8411• Fax: +358-9-4780-8448• Web: www.zyxel.fi• Regular Mail: ZyXEL Communications Oy, Malminkaari 10, 00700 Helsinki, FinlandFrance• E-mail: info@zyxel.fr • Telephone: +33-4-72-52-97-97• Fax: +33-4-72-52-19-20• Web: www.zyxel.fr• Regular Mail: ZyXEL France, 1 rue des Vergers, Bat. 1 / C, 69760 Limonest, France
 Appendix G Customer SupportP-870HW-51a v2 User’s Guide 239Germany• Support E-mail: support@zyxel.de• Sales E-mail: sales@zyxel.de• Telephone: +49-2405-6909-69• Fax: +49-2405-6909-99• Web: www.zyxel.de• Regular Mail: ZyXEL Deutschland GmbH., Adenauerstr. 20/A2 D-52146, Wuerselen, GermanyHungary• Support E-mail: support@zyxel.hu• Sales E-mail: info@zyxel.hu• Telephone: +36-1-3361649• Fax: +36-1-3259100• Web: www.zyxel.hu• Regular Mail: ZyXEL Hungary, 48, Zoldlomb Str., H-1025, Budapest, HungaryIndia• Support E-mail: support@zyxel.in• Sales E-mail: sales@zyxel.in• Telephone: +91-11-30888144 to +91-11-30888153• Fax: +91-11-30888149, +91-11-26810715• Web: http://www.zyxel.in• Regular Mail: India - ZyXEL Technology India Pvt Ltd., II-Floor, F2/9 Okhla Phase -1, New Delhi 110020, IndiaJapan• Support E-mail: support@zyxel.co.jp• Sales E-mail: zyp@zyxel.co.jp• Telephone: +81-3-6847-3700• Fax: +81-3-6847-3705• Web: www.zyxel.co.jp• Regular Mail: ZyXEL Japan, 3F, Office T&U, 1-10-10 Higashi-Gotanda, Shinagawa-ku, Tokyo 141-0022, JapanKazakhstan• Support: http://zyxel.kz/support• Sales E-mail: sales@zyxel.kz• Telephone: +7-3272-590-698• Fax: +7-3272-590-689• Web: www.zyxel.kz• Regular Mail: ZyXEL Kazakhstan, 43 Dostyk Ave., Office 414, Dostyk Business Centre, 050010 Almaty, Republic of Kazakhstan
Appendix G Customer SupportP-870HW-51a v2 User’s Guide240Malaysia• Support E-mail: support@zyxel.com.my• Sales E-mail: sales@zyxel.com.my• Telephone: +603-8076-9933• Fax: +603-8076-9833• Web: http://www.zyxel.com.my• Regular Mail: ZyXEL Malaysia Sdn Bhd., 1-02 & 1-03, Jalan Kenari 17F, Bandar Puchong Jaya, 47100 Puchong, Selangor Darul Ehsan, MalaysiaNorth America• Support E-mail: support@zyxel.com• Support Telephone: +1-800-978-7222• Sales E-mail: sales@zyxel.com• Sales Telephone: +1-714-632-0882• Fax: +1-714-632-0858• Web: www.zyxel.com• Regular Mail: ZyXEL Communications Inc., 1130 N. Miller St., Anaheim, CA 92806-2001, U.S.A.Norway• Support E-mail: support@zyxel.no • Sales E-mail: sales@zyxel.no• Telephone: +47-22-80-61-80• Fax: +47-22-80-61-81• Web: www.zyxel.no• Regular Mail: ZyXEL Communications A/S, Nils Hansens vei 13, 0667 Oslo, NorwayPoland• E-mail: info@pl.zyxel.com• Telephone: +48-22-333 8250• Fax: +48-22-333 8251• Web: www.pl.zyxel.com• Regular Mail: ZyXEL Communications, ul. Okrzei 1A, 03-715 Warszawa, PolandRussia• Support: http://zyxel.ru/support• Sales E-mail: sales@zyxel.ru• Telephone: +7-095-542-89-29• Fax: +7-095-542-89-25• Web: www.zyxel.ru• Regular Mail: ZyXEL Russia, Ostrovityanova 37a Str., Moscow 117279, Russia
 Appendix G Customer SupportP-870HW-51a v2 User’s Guide 241Singapore• Support E-mail: support@zyxel.com.sg• Sales E-mail: sales@zyxel.com.sg• Telephone: +65-6899-6678• Fax: +65-6899-8887• Web: http://www.zyxel.com.sg• Regular Mail: ZyXEL Singapore Pte Ltd., No. 2 International Business Park, The Strategy #03-28, Singapore 609930Spain• Support E-mail: support@zyxel.es• Sales E-mail: sales@zyxel.es• Telephone: +34-902-195-420• Fax: +34-913-005-345• Web: www.zyxel.es • Regular Mail: ZyXEL Communications, Arte, 21 5ª planta, 28033 Madrid, SpainSweden• Support E-mail: support@zyxel.se• Sales E-mail: sales@zyxel.se• Telephone: +46-31-744-7700• Fax: +46-31-744-7701• Web: www.zyxel.se• Regular Mail: ZyXEL Communications A/S, Sjöporten 4, 41764 Göteborg, SwedenTaiwan• Support E-mail: support@zyxel.com.tw• Sales E-mail: sales@zyxel.com.tw• Telephone: +886-2-27399889• Fax: +886-2-27353220• Web: http://www.zyxel.com.tw• Address: Room B, 21F., No.333, Sec. 2, Dunhua S. Rd., Da-an District, TaipeiThailand• Support E-mail: support@zyxel.co.th• Sales E-mail: sales@zyxel.co.th• Telephone: +662-831-5315• Fax: +662-831-5395• Web: http://www.zyxel.co.th• Regular Mail: ZyXEL Thailand Co., Ltd., 1/1 Moo 2, Ratchaphruk Road, Bangrak-Noi, Muang, Nonthaburi 11000, Thailand.
Appendix G Customer SupportP-870HW-51a v2 User’s Guide242Turkey• Support E-mail: cso@zyxel.com.tr• Telephone: +90 212 222 55 22• Fax: +90-212-220-2526• Web: http:www.zyxel.com.tr• Address: Kaptanpasa Mahallesi Piyalepasa Bulvari Ortadogu Plaza N:14/13 K:6 Okmeydani/Sisli Istanbul/TurkeyUkraine• Support E-mail: support@ua.zyxel.com• Sales E-mail: sales@ua.zyxel.com• Telephone: +380-44-247-69-78• Fax: +380-44-494-49-32• Web: www.ua.zyxel.com• Regular Mail: ZyXEL Ukraine, 13, Pimonenko Str., Kiev 04050, UkraineUnited Kingdom• Support E-mail: support@zyxel.co.uk• Sales E-mail: sales@zyxel.co.uk• Telephone: +44-1344-303044, 0845 122 0301 (UK only)• Fax: +44-1344-303034• Web: www.zyxel.co.uk• Regular Mail: ZyXEL Communications UK Ltd., 11 The Courtyard, Eastern Road, Bracknell, Berkshire RG12 2XB, United Kingdom (UK)
IndexP-870HW-51a v2 User’s Guide 243IndexAAAL5 167ADSL2 167Advanced Encryption StandardSee AES.AES 224alternative subnet mask notation 207antenna 165directional 227gain 227omni-directional 227AP (access point) 217applicationsInternet access 26ATM AAL5 167ATM Adaptation Layer 5 (AAL5) 167auto-negotiating rate adaptation 167Bbackup 152bandwidth management 117Basic Service Set, See BSS 215blinking LEDs 27broadcast 65BSS 215CCA 222Canonical Format Indicator See CFICCMs 155Certificate AuthoritySee CA.certifications 233notices 234viewing 234CFI 65CFM 155CCMs 155link trace test 155loopback test 155MA 155MD 155MEP 155MIP 155channel 217interference 217channel ID 79configuration 68, 72Configure QoS 117Connectivity Check Messages, see CCMscontact information 237copyright 233CoS 125CTS (Clear to Send) 218customer support 237Ddefault 153default LAN IP address 39DHCP 50, 68, 72, 127DHCP relay 166DHCP server 166DiffServ (Differentiated Services) 125DiffServ marking rule 125disclaimer 233DNS 68DNS server address assignment 66Domain Name 103domain name systemsee DNSDomain Name System. See DNS.DoSBasics 107DS field 125DS See Differentiated ServicesDSCP 125DSL interface 54dynamic DNS 127Dynamic Host Configuration Protocol. See DHCP.dynamic WEP key exchange 223DYNDNS wildcard 127
IndexP-870HW-51a v2 User’s Guide244EEAP Authentication 221EAP-MD5 168ECHO 103encapsulated routing link protocol (ENET ENCAP) 63Encapsulation 62PPP over Ethernet 63encapsulationENET ENCAP 63encryption 224WEP 81ESS 216Extended Service Set IDentification 79Extended Service Set, See ESS 216external antenna 167external RADIUS 168FF4/F5 OAM 167FCC interference statement 233Finger 103FirewallCreating/Editing Rules 109Introduction 107Policies 107firmwareupload 150upload error 151fragmentation threshold 218frequency range 168FTP 100, 103GG.992.1 167G.992.3 167G.992.4 167G.992.5 167Hhidden node 217host 144HTTP 103, 107HTTP (Hypertext Transfer Protocol) 150humidity 165IIANA 73, 212IBSS 215IEEE 802.11g 219IEEE 802.11g wireless LAN 167IEEE 802.11i 167IEEE 802.1Q 65IGMP 65, 68, 74version 65IGMP proxy 167IGMP v1 167IGMP v2 167Independent Basic Service SetSee IBSS 215initialization vector (IV) 224install UPnP 132Windows Me 132Windows XP 134Internet access 26Internet Assigned Numbers AuthoritySee IANA 212IP address 72IP Address Assignment 63IP alias 166IP multicasting 167IP pool 69IP pool setup 72LLAN TCP/IP 72LBR 155link trace 155Link Trace Message, see LTMLink Trace Response, see LTRlogs 147Loop Back Response, see LBRloopback 155LTM 155LTR 155
IndexP-870HW-51a v2 User’s Guide 245MMA 155MAC address filter action 87MAC filter 86Maintenance Association, see MAMaintenance Domain, see MDMaintenance End Point, see MEPmanaging the devicegood habits 25MD 155MEP 155Message Integrity Check (MIC) 224MTU (Multi-Tenant Unit) 65multicast 65, 68, 73, 74multiple PVC support 166NNAT 73, 103, 212Symmetric 64NAT (Network Address Translation) 99NAT traversal 131Network Management 103NNTP 103OOAM 167operation humidity 165operation temperature 165PPacket Transfer Mode 54Pairwise Master Key (PMK) 224, 226Permanent Virtual Circuits 167PHB (Per-Hop Behavior) 125Point-to-Point Tunneling Protocol 103POP3 103, 107ports 27power adaptor 168power specifications 165PPP (Point-to-Point Protocol) Link Layer Protocol 167PPP over ATM AAL5 167PPP over Ethernet 167PPPoE 63Benefits 63PPPoE (Point-to-Point Protocol over Ethernet) 166PPTP 103preamble mode 219product registration 235PSK 224PTM 54PVCs 167QQoS 118, 125QoS class configuration 120Quality of Service (QoS) 117Quick Start Guide 39RRADIUS 168, 220message types 221messages 221shared secret key 221Reach-Extended ADSL 167registrationproduct 235related documentation 3remote managementTR-069 129resetting your device 28restore 152RFC 1483 167RFC 1631 99RFC 2131. See DHCP.RFC 2132. See DHCPRFC 2364 167RFC 2516 166, 167RFC 2684 167RIP 68Routing Information Protocolsee RIProuter features 26RTS (Request To Send) 218threshold 217, 218
IndexP-870HW-51a v2 User’s Guide246Ssafety warnings 6seamless rate adaptation 167Service Set 79Services 103SMTP 103SNMP 103, 167SRA 167static route 113static VLANstatus indicators 27storage humidity 165storage temperature 165subnet 205subnet mask 72, 206subnetting 208Symmetric NAT 64Symmetric NAT, Outgoing 64syntax conventions 4TTag Control Information See TCITag Protocol Identifier See TPIDTCITCP/IP 107temperature 165Temporal Key Integrity Protocol (TKIP) 224TLS 168TPID 65TR-069 129trademarks 233transparent bridging 167TTLS 168Uunicast 65Universal Plug and Play 131application 131UPnP 131forum 132security issues 131VVIDVirtual Local Area Network See VLANVLAN 64Introduction 64number of possible VIDspriority framestaticVLAN ID 65VLAN Identifier See VIDVLAN tag 65WWAN (Wide Area Network) 53warranty 235note 235Web Configurator 39WEP (Wired Equivalent Privacy) 167WEP encryption 82Wi-Fi Protected Access 223Wi-Fi Protected Access (WPA) 167wireless client WPA supplicants 225wireless LAN MAC address filtering 167wireless security 219Wireless tutorial 31WLANinterference 217security parameters 226WLAN button 28WPA 223key caching 224pre-authentication 224user authentication 224vs WPA-PSK 224wireless client supplicant 225with RADIUS application example 225WPA2 223user authentication 224vs WPA2-PSK 224wireless client supplicant 225with RADIUS application example 225WPA2-Pre-Shared Key 223WPA2-PSK 223, 224application example 225WPA-PSK 223, 224application example 225
IndexP-870HW-51a v2 User’s Guide 247ZZyXEL_s FirewallIntroduction 107
IndexP-870HW-51a v2 User’s Guide248

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