CC and C Technologies WA2204 802.11b WLAN Broadband Router User Manual wifi UM2 6 English

CC&C; Technologies, Inc. 802.11b WLAN Broadband Router wifi UM2 6 English

User Manual

USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 i User’s Manual Version: 2.6 WLAN Broadband Router WA - 2204 Note：This router can also be used as an Access Point Technologies, Inc.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 ii Trademarks Copyright @2004 Contents are subject to change without notice. All trademarks belong to their respective proprietors. Copyright Statement THIS DOCUMENT CONTAINS OF PROPRIETARY TECHNICAL INFORMATION THAT IS THE PROPERTY OF THIS COMPANY. AND NO PART OF THIS DOCUMENTATION MAY BE REPRODUCED, STORED IN A RETRIEVAL SYSTEM OR TRANSMITTED IN ANY FORM OR BY ANY MEANS, ELECTRICAL OR MECHANICAL, BY PHOTOCOPYING, RECORDING, OR OTHERWISE, WITHOUT THE PRIOR WRITTEN CONSENT OF THIS COMPANY.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 iii INFORMATION TO USER Federal Communication Commission Interference Statement This equipment 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 equipment 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. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: ---Reorient or relocate the receiving antenna. ---Increase the separation between the equipment and receiver. ---Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. ---Consult the dealer or an experienced radio/TV technician for help. Installation and use of this Wireless LAN device must be in strict accordance with the instructions included in the user documentation provided with the product. Any changes or modifications (including the antennas) made to this device that are not expressly approved by the manufacturer may void the user’s authority to operate the equipment. The manufacturer is not responsible for any radio or television interference caused by unauthorized modification of this device, or the substitution of the connecting cables and equipment other than manufacturer specified. It is the responsibility of the user to correct any interference caused by such unauthorized modification, substitution or attachment. Manufacturer and its authorized resellers or distributors will assume no liability for any damage or violation of government regulations arising from failing to comply with these guidelines. FCC RF Radiation Exposure Statement: This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment. This device and its antenna must not be co-located or operating in conjunction with any other antenna or transmitter. Your device contains a low power transmitter. When device is transmitted it sends out Radio Frequency (RF) signal.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 iv In order to maintain compliance with the FCC RF exposure guidelines, this equipment should be installed and operated with minimum distance 20cm between the radiator and your body. Use only with supplied antenna. Unauthorized antenna, modification, or attachments could damage the transmitter and may violate FCC regulations. “CC&C Technologies, Inc. declare that WA-2204 (WLAN Broadband Router) is limited in CH1~CH 11 by specified firmware controller in USA. ” The users manual or instruction manual for an intentional or unintentional radiator shall caution the user that changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 v REGULATORY INFORMATION WLAN Broadband Router must be installed and used in strict accordance with the instructions. This device complies with the following radio frequency and safety standards. USA - Federal Communications Commission (FCC) This device complies with Part 15 of FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference that may cause undesired operation. Europe - R&TTE Directive This device complies with the specifications listed below • EN 301-489-1 & -17 General EMC requirements for Radio equipment. • EN 300-328-1 & -2 Technical requirements for Radio equipment. • EN 60950-1 Safety Requirements for Radio equipment The channel identifiers, channel center frequencies, and regulatory domains of each 22-MHz-wide channel are shown in following Table. Regulatory Domains Channel Identifier Center Frequency(MHZ) Japan ETSI North America Israel France Mexico 1 2412 ˇ ˇ ˇ 2 2417 ˇ ˇ ˇ 3 2422 ˇ ˇ ˇ ˇ 4 2427 ˇ ˇ ˇ ˇ 5 2432 ˇ ˇ ˇ ˇ 6 2437 ˇ ˇ ˇ ˇ 7 2442 ˇ ˇ ˇ ˇ 8 2447 ˇ ˇ ˇ ˇ 9 2452 ˇ ˇ ˇ ˇ 10 2457 ˇ ˇ ˇ ˇ ˇ 11 2462 ˇ ˇ ˇ ˇ ˇ 12 2467 ˇ ˇ ˇ 13 2472 ˇ ˇ ˇ 14 2484 ˇ
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 vi Terminology AES Advanced Encryption Standard ANSI American National Standards Institute AP Access Point CCK Complementary Code Keying CSMA/CA Carrier Sense Multiple Access/ Collision Avoidance CSMA/CD Carrier Sense Multiple Access/ Collision Detection DHCP Dynamic Host Configuration Protocol DSSS Direct Sequence Spread Spectrum EAP Extensible Authentication Protocol FCC Federal Communications Commission FTP File Transfer Protocol IEEE Institute of Electrical and Electronic Engineers IP Internet Protocol ISM Industrial, Scientific and Medical LAN Local Area Network MAC Media Access Control NAT Network Address Translation NT Network Termination PPTP Point to Point Tunneling Protocol PSD Power Spectral Density RF Radio Frequency SNR Signal to Noise Ratio SSID Service Set Identification TCP Transmission Control Protocol TFTP Trivial File Transfer Protocol TKIP Temporal Key Integrity Protocol UPNP Universal Plug and Play WDS Wireless Distribution System WEP Wired Equivalent Privacy WLAN Wireless Local Area Network WPA Wi-Fi Protected Access
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 vii Table of Contents REVISION HISTORY ............................................................................... 錯誤! 尚未定義書籤。 TERMINOLOGY ..........................................................................................................................VI 1 INTRODUCTION....................................................................................................................1 1.1 PACKAGE CONTENTS ............................................................................................................ 1 1.2 PRODUCT SPECIFICATIONS ................................................................................................... 1 1.3 PRODUCT FEATURES ............................................................................................................ 2 1.4 FRONT PANEL DESCRIPTION................................................................................................. 2 1.5 REAR PANEL DESCRIPTION................................................................................................... 4 2 INSTALLATION ..................................................................................................................... 5 2.1 HARDWARE INSTALLATION .................................................................................................. 5 2.2 SOFTWARE INSTALLATION.................................................................................................... 5 3 SOFTWARE CONFIGURATION ......................................................................................... 6 3.1 PREPARE YOUR PC TO CONFIGURE THE WLAN BROADBAND ROUTER ................................ 6 3.2 CONNECIT TO THE WLAN BROADBAND ROUTER ................................................................ 8 3.3 MANAGEMENT AND CONFIGURATION ON THE WLAN BROADBAND ROUTER ...................... 8 3.3.1 STATUS ................................................................................................................................. 8 3.3.2 WIRELESS BASIC SETTINGS ............................................................................................... 10 3.3.3 WIRELESS ADVANCED SETTINGS ....................................................................................... 11 3.3.4 WIRELESS SECURITY SETUP............................................................................................... 12 3.3.5 WIRELESS ACCESS CONTROL............................................................................................. 15 3.3.6 WDS SETUP ...................................................................................................................... 16 3.3.7 LAN INTERFACE SETUP ..................................................................................................... 17 3.3.8 WAN INTERFACE SETUP .................................................................................................... 19 3.3.9 FIREWALL - PORT FILTERING.............................................................................................. 25 3.3.10 FIREWALL - IP FILTERING .................................................................................................. 26 3.3.11 FIREWALL - MAC FILTERING............................................................................................. 28 3.3.12 FIREWALL - PORT FORWARDING ......................................................................................... 29 3.3.13 FIREWALL - DMZ............................................................................................................... 30 3.3.14 STATISTICS ......................................................................................................................... 31 3.3.15 UPGRADE FIRMWARE ......................................................................................................... 32 3.3.16 SAV E / RELOAD SETTINGS .................................................................................................. 33
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 viii 3.3.17 PASSWORD SETUP .............................................................................................................. 33 4 FREQUENTLY ASKED QUESTIONS (FAQ).................................................................... 35 4.1 WHAT AND HOW TO FIND MY PC’S IP AND MAC ADDRESS? .............................................. 35 4.2 WHAT IS WIRELESS LAN? ................................................................................................. 35 4.3 WHAT ARE ISM BANDS? .................................................................................................... 35 4.4 HOW DOES WIRELESS NETWORKING WORK?....................................................................... 35 4.5 WHAT IS BSSID? ............................................................................................................... 36 4.6 WHAT IS ESSID? ............................................................................................................... 36 4.7 WHAT ARE POTENTIAL FACTORS THAT MAY CAUSES INTERFERENCE? ................................. 37 4.8 WHAT ARE THE OPEN SYSTEM AND SHARED KEY AUTHENTICATIONS? .............................. 37 4.9 WHAT IS WEP? .................................................................................................................. 37 4.10 WHAT IS FRAGMENT THRESHOLD?..................................................................................... 37 4.11 WHAT IS RTS (REQUEST TO SEND) THRESHOLD?.............................................................. 38 4.12 WHAT IS BEACON INTERVAL?............................................................................................. 38 4.13 WHAT IS PREAMBLE TYPE?................................................................................................ 39 4.14 WHAT IS SSID BROADCAST? ............................................................................................. 39 4.15 WHAT IS WI-FI PROTECTED ACCESS (WPA)? .................................................................... 39 4.16 WHAT IS 802.1X AUTHENTICATION? .................................................................................. 40 4.17 WHAT IS TEMPORAL KEY INTEGRITY PROTOCOL (TKIP)? ................................................. 40 4.18 WHAT IS ADVANCED ENCRYPTION STANDARD (AES)? ...................................................... 40 4.19 WHAT IS INTER-ACCESS POINT PROTOCOL (IAPP)?........................................................... 40 4.20 WHAT IS WIRELESS DISTRIBUTION SYSTEM (WDS)?......................................................... 40 4.21 WHAT IS UNIVERSAL PLUG AND PLAY (UPNP)?................................................................. 41 4.22 WHAT IS MAXIMUM TRANSMISSION UNIT (MTU) SIZE? ................................................... 41 4.23 WHAT IS CLONE MAC ADDRESS?...................................................................................... 41 5.1 EXAMPLE ONE – PPPOE ON THE WAN................................................................................... 42 5.2 EXAMPLE TWO – FIXED IP ON THE WAN................................................................................ 44
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 1 1 Introduction The Wireless LAN Broadband Router is an affordable IEEE 802.11b wireless LAN broadband router solution; setting SOHO and enterprise standard for high performance, secure, manageable and reliable WLAN. This document describes the steps required for the initial IP address assign and other WLAN router configuration. The description includes the implementation of the above steps. Notice: It will take about 25 seconds to complete the boot up sequence after powered on the WLAN Broadband Router; all LEDs are blank while booting except the Power LED, and after that the WLAN Activity LED will be flashing to show the WLAN interface is enabled and working now. 1.1 Package contents The package of the WLAN Broadband Router includes the following items,  The WLAN Broadband Router  The AC to DC power adapter  The Documentation CD 1.2 Product Specifications Product Name WLAN Broadband Router Standard 802.11b(Wireless), 802.3(10BaseT), 802.3u(100BaseT) Data Transfer Rate 11Mbps(Wireless), 100Mbps(Ethernet) Modulation Method DBPSK/ DQPSK/ CCK Frequency Band 2.4GHz – 2.483GJz ISM Band, DSSS RF Output Power 20±2dBm Receiver Sensitivity 11Mbps better than 8% PER @ -80 dBm Operation Range 30 to 300 meters (depend on surrounding) Antenna External Antenna, ANT. Gain:2.5 dBi LED Power, Active (WLAN), Act/Link (Ethernet) Security 64 bit/ 128 bit WEP, WPA-PSK (TKIP), port filtering, IP filtering, MAC filtering, port forwarding and DMZ hosting LAN interface One 10/100BaseT with RJ45 connector (WAN) Four 10/100BaseT with RJ45 connectors (LAN) Power Consumption 7.5V DC Power Adapter
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 2 Dimension 140 x 110 x 35 mm Operating Temperature 0 – 50oC ambient temperature Storage Temperature -20 - 70oC ambient temperature Humidity 5 to 90 % maximum (non-condensing) 1.3 Product Features  Complies with IEEE 802.11b standard for 2.4GHz Wireless LAN.  Supports 11Mbps data transfer rate with automatic fallback to 5.5M, 2M and 1Mbps.  Supports bridging, routing functions between wireless and wired Ethernet interfaces.  Supports 64-bit and 128-bit WEP encryption/decryption function to protect the wireless data transmission.  Supports IEEE 802.1x Authentication.  Support Wi-Fi Protected Access Authentication with Radius and Pre-Shared Key mode.  Supports Inter-Access Point Protocol (IAPP).  Supports Wireless Distribution System (WDS).  Supports IEEE 802.3x full duplex flow control on 10/100M Ethernet interface.  Supports DHCP server to provide clients auto IP addresses assignment.  Supports DHCP client for Ethernet WAN interface auto IP address assignment.  Supports static and dynamic IP routing.  Supports PPPoE on Ethernet WAN interface.  Supports clone MAC address function.  Supports firewall security with port filtering, IP filtering, MAC filtering, port forwarding, trigger port and DMZ hosting functions.  Supports WEB based management and configuration.  Supports PPTP Client on Ethernet WAN interface.  Supports UPnP for automatic Internet access. 1.4 Front Panel Description
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 3 Figure 1 –WLAN Broadband Router Front Panel LED Indicator State Description 1. Power LED On The WLAN Broadband Router is powered on. Off The WLAN Broadband Router is powered off.2. WLAN Activity LED Flashing Data is transmitting or receiving on the antenna. Off No data is transmitting or receiving on the antenna. 3. WAN ACT LED Flashing Data is transmitting or receiving on the WAN interface. Off No data is transmitting or receiving on the WAN interface. 4. WAN 10/100M LED On Connection speed is 100Mbps on WAN interface. Off Connection speed is 10Mbps on WAN interface. 5. LAN ACT LED Flashing Data is transmitting or receiving on the LAN interface. Off No data is transmitting or receiving on the LAN interface. 6. LAN 10/100M LED On Connection speed is 100Mbps on LAN interface. Off Connection speed is 10Mbps on LAN interface.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 4 1.5 Rear Panel Description Figure 2 – WLAN Broadband Router Rear Panel Interfaces Description 1. Reset Push continually the reset button 5 seconds to reset the configuration parameters to factory defaults. 2. WAN The RJ-45 socket allows WAN connection through a Category 5 cable. Support auto-sensing on 10/100M speed and half/ full duplex; comply with IEEE 802.3/ 802.3u respectively. 3. LAN The RJ-45 sockets allow LAN connection through Category 5 cables. Support auto-sensing on 10/100M speed and half/ full duplex; comply with IEEE 802.3/ 802.3u respectively. 4. Power The power jack allows an external DC +7.5 V power supply connection. The external AC to DC adaptor provide adaptive power requirement to the WLAN Broadband Router. 5. Antenna The Wireless LAN Antenna. WAN LAN PowerAntenna Reset
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 5 2 Installation 2.1 Hardware Installation Step One: Place the Wireless LAN Broadband Router to the best optimum transmission location. The best transmission location for your WLAN Broadband Router is usually at the geographic center of your wireless network, with line of sign to all of your mobile stations. Step Two: Connect the WLAN Broadband Router to your wired network. Connect the Ethernet WAN interface of WLAN Broadband Router by category 5 Ethernet cable to your switch/ hub/ xDSL modem or cable modem. A straight-through Ethernet cable with appropriate cable length is needed. Step Three: Supply DC power to the WLAN Broadband Router. Use only the AC/DC power adapter supplied with the WLAN Broadband Router; it may occur damage by using a different type of power adapter. The hardware installation finished. 2.2 Software Installation  There are no software drivers, patches or utilities installation needed, but only the configuration setting. Please refer to chapter 3 for software configuration.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 6 3 Software configuration There are web based management and configuration functions allowing you to have the jobs done easily. The WLAN Broadband Router is delivered with the following factory default parameters on the Ethernet LAN interfaces. Default IP Address: 192.168.1.254 Default IP subnet mask: 255.255.255.0 WEB login User Name: <empty> WEB login Password: <empty> 3.1 Prepare your PC to configure the WLAN Broadband Router For OS of Microsoft Windows 95/ 98/ Me: 1. Click the Start button and select Settings, then click Control Panel. The Control Panel window will appear. Note: Windows Me users may not see the Network control panel. If so, select View all Control Panel options on the left side of the window 2. Move mouse and double-click the right button on Network icon. The Network window will appear. 3. Check the installed list of Network Components. If TCP/IP is not installed, click the Add button to install it; otherwise go to step 6. 4. Select Protocol in the Network Component Type dialog box and click Add button. 5. Select TCP/IP in Microsoft of Select Network Protocol dialog box then click OK button to install the TCP/IP protocol, it may need the Microsoft Windows CD to complete the installation. Close and go back to Network dialog box after the TCP/IP installation. 6. Select TCP/IP and click the properties button on the Network dialog box. 7. Select Specify an IP address and type in values as following example.  IP Address: 192.168.1.1, any IP address within 192.168.1.1 to 192.168.1.253 is good to connect the Wireless LAN Access Point.  IP Subnet Mask: 255.255.255.0 8. Click OK and reboot your PC after completes the IP parameters setting. For OS of Microsoft Windows 2000, XP: 1. Click the Start button and select Settings, then click Control Panel. The Control Panel window will appear.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 7 2. Move mouse and double-click the right button on Network and Dial-up Connections icon. Move mouse and double-click the Local Area Connection icon. The Local Area Connection window will appear. Click Properties button in the Local Area Connection window. 3. Check the installed list of Network Components. If TCP/IP is not installed, click the Add button to install it; otherwise go to step 6. 4. Select Protocol in the Network Component Type dialog box and click Add button. 5. Select TCP/IP in Microsoft of Select Network Protocol dialog box then click OK button to install the TCP/IP protocol, it may need the Microsoft Windows CD to complete the installation. Close and go back to Network dialog box after the TCP/IP installation. 6. Select TCP/IP and click the properties button on the Network dialog box. 7. Select Specify an IP address and type in values as following example.  IP Address: 192.168.1.1, any IP address within 192.168.1.1 to 192.168.1.253 is good to connect the Wireless LAN Access Point.  IP Subnet Mask: 255.255.255.0 8. Click OK to completes the IP parameters setting. For OS of Microsoft Windows NT: 1. Click the Start button and select Settings, then click Control Panel. The Control Panel window will appear. 2. Move mouse and double-click the right button on Network icon. The Network window will appear. Click Protocol tab from the Network window. 3. Check the installed list of Network Protocol window. If TCP/IP is not installed, click the Add button to install it; otherwise go to step 6. 4. Select Protocol in the Network Component Type dialog box and click Add button. 5. Select TCP/IP in Microsoft of Select Network Protocol dialog box then click OK button to install the TCP/IP protocol, it may need the Microsoft Windows CD to complete the installation. Close and go back to Network dialog box after the TCP/IP installation. 6. Select TCP/IP and click the properties button on the Network dialog box. 7. Select Specify an IP address and type in values as following example.  IP Address: 192.168.1.1, any IP address within 192.168.1.1 to 192.168.1.253 is good to connect the Wireless LAN Access Point.  IP Subnet Mask: 255.255.255.0 8. Click OK to completes the IP parameters setting.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 8 3.2 Connecit to the WLAN Broadband Router Open a WEB browser, i.e. Microsoft Internet Explore, then enter 192.168.1.254 on the URL to connect the WLAN Broadband Router. 3.3 Management and configuration on the WLAN Broadband Router 3.3.1 Status This page shows the current status and some basic settings of the device, includes system, wireless, Ethernet LAN and WAN configuration information. Screen snapshot – Status Item Description System Alias Name It shows the alias name of this WLAN Broadband Router. Uptime It shows the duration since WLAN Broadband Router is powered on. Firmware version It shows the firmware version of WLAN Broadband Router. Wireless configuration
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 9 SSID It shows the SSID of this WLAN Broadband Router. The SSID is the unique name of WLAN Broadband Router and shared among its service area, so all devices attempts to join the same wireless network can identify it.Channel Number It shows the wireless channel connected currently. Encryption It shows the status of encryption function. Associated Clients It shows the number of connected clients (or stations, PCs). BSSID It shows the BSSID address of the WLAN Broadband Router. BSSID is a six-byte address. LAN configuration IP Address It shows the IP address of LAN interfaces of WLAN Broadband Router. Subnet Mask It shows the IP subnet mask of LAN interfaces of WLAN Broadband Router. Default Gateway It shows the default gateway setting for LAN interfaces outgoing data packets. DHCP Server It shows the DHCP server is enabled or not. MAC Address It shows the MAC address of LAN interfaces of WLAN Broadband Router. WAN configuration Attain IP Protocol It shows how the WLAN Broadband Router gets the IP address. The IP address can be set manually to a fixed one or set dynamically by DHCP server or attain IP by PPPoE connection. IP Address It shows the IP address of WAN interface of WLAN Broadband Router. Subnet Mask It shows the IP subnet mask of WAN interface of WLAN Broadband Router. Default Gateway It shows the default gateway setting for WAN interface outgoing data packets. MAC Address It shows the MAC address of WAN interface of WLAN Broadband Router.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 10 3.3.2 Wireless Basic Settings This page is used to configure the parameters for wireless LAN clients that may connect to your Broadband Router. Here you may change wireless encryption settings as well as wireless network parameters. Screen snapshot – Wireless Basic Settings Item Description Alias Name It is the alias name of this WLAN Broadband Router. The alias name can be 32 characters long. Disable Wireless LAN Interface Tick on to disable the wireless LAN data transmission. SSID It is the wireless network name. The SSID can be 32 bytes long. Channel Number Select the wireless communication channel from pull-down menu. Associated Clients Click the Show Active Clients button to open Active Wireless Client Table that shows the MAC address, transmit-packet, receive-packet and transmission-rate for each associated wireless client. Apply Changes Click the Apply Changes button to complete the new
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 11 configuration setting. Reset Click the Reset button to abort change and recover the previous configuration setting. 3.3.3 Wireless Advanced Settings These settings are only for more technically advanced users who have a sufficient knowledge about wireless LAN. These settings should not be changed unless you know what effect the changes will have on your WLAN Broadband Router. Screen snapshot – Wireless Advanced Settings Item Description Authentication Type Click to select the authentication type in Open System, Shared Key or Auto selection. Fragment Threshold Set the data packet fragmentation threshold, value can be written between 256 and 2346 bytes. Refer to 4.10 What is Fragment Threshold? RTS Threshold Set the RTS Threshold, value can be written between 0 and 2347 bytes. Refer to 4.11 What is RTS(Request To Send) Threshold?Beacon Interval Set the Beacon Interval, value can be written between 20
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 12 and 1024 ms. Refer to 4.12 What is Beacon Interval? Data Rate Select the transmission data rate from pull-down menu. Data rate can be auto-select, 11M, 5.5M, 2M or 1Mbps. Preamble Type Click to select the Long Preamble or Short Preamble support on the wireless data packet transmission. Refer to 4.13 What is Preamble Type? Broadcast SSID Click to enable or disable the SSID broadcast function. Refer to 4.14 What is SSID Broadcast? IAPP Click to enable or disable the IAPP function. Refer to4.19 What is Inter-Access Point Protocol(IAPP)?Apply Changes Click the Apply Changes button to complete the new configuration setting. Reset Click the Reset button to abort change and recover the previous configuration setting. 3.3.4 Wireless Security Setup This page allows you setup the wireless security. Turn on WEP or WPA by using encryption keys could prevent any unauthorized access to your wireless network. Screen snapshot – Wireless Security Setup
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 13 Item Description Encryption Select the encryption supported over wireless access. The encryption method can be None, WEP or WPA. Refer to 4.9 What is WEP? 4.15 What is Wi-Fi Protected Access (WPA)? 4.16 What is 802.1X Authentication? 4.17 What is Temporal Key Integrity Protocol (TKIP)? 4.18 What is Advanced Encryption Standard (AES)? Use 802.1x Authentication While Encryption is selected to be WEP. Click the check box to enable IEEE 802.1x authentication function. Refer to 4.16 What is 802.1x Authentication? WPA Authentication Mode While Encryption is selected to be WPA. Click to select the WPA Authentication Mode with WPA-RADIUS or Pre-Shared Key. Refer to 4.15 What is Wi-Fi Protected Access (WPA)? WPA Unicast Cipher Suite While Encryption is selected to be WPA. Click to enable the WPA unicast cipher suite to be TKIP and AES. Refer to 4.17 What is Temporal Key Integrity Protocol (TKIP)? 4.18 What is Advanced Encryption Standard (AES)? Pre-Shared Key Format While Encryption is selected to be WPA. Select the Pre-shared key format from the pull-down menu. The format can be Passphrase or Hex (64 characters). Pre-Shared Key Pre-shared key 2 of WPA security encryption function. Authentication RADIUS Server Set the IP address, port and login password information of authentication RADIUS sever. Apply Changes Click the Apply Changes button to complete the new configuration setting. Reset Click the Reset button to abort change and recover the previous configuration setting.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 14 Screen snapshot – Set WEP Key Item Description Key Length Select the WEP shared secret key length from pull-down menu. The length can be chose between 64-bit and 128-bit (known as “WEP2”) keys. The WEP key is composed of initialization vector (24 bits) and secret key (40-bit or 104-bit). Key Format Select the WEP shared secret key format from pull-down menu. The format can be chose between plant text (ASCII) and hexadecimal (HEX) code. Default Tx Key Set the default secret key for WEP security function. Value can be chose between 1 and 4. Encryption Key 1 Secret key 1 of WEP security encryption function. Encryption Key 2 Secret key 2 of WEP security encryption function. Encryption Key 3 Secret key 3 of WEP security encryption function. Encryption Key 4 Secret key 4 of WEP security encryption function. Apply Changes Click the Apply Changes button to complete the new configuration setting. Close Click to close this WEP Key setup window. Reset Click the Reset button to abort change and recover the
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 15 previous configuration setting. WEP encryption key (secret key) length: Length Format 64-bit 128-bit ASCII 5 characters 13 characters HEX 10 hexadecimal codes 26 hexadecimal codes 3.3.5 Wireless Access Control If you enable wireless access control, only those clients whose wireless MAC addresses are in the access control list will be able to connect to your Access Point. When this option is enabled, no wireless clients will be able to connect if the list contains no entries. Screen snapshot – Wireless Access Control Item Description Enable Wireless Access Control Click the check box to enable wireless access control. This is a security control function; only those clients registered in the access control list can link to this WLAN Broadband Router. MAC Address Fill in the MAC address of client to register this WLAN
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 16 Broadband Router access capability. Comment Fill in the comments for the registered client. Apply Changes Click the Apply Changes button to register the client to new configuration setting. Reset Click the Reset button to abort change and recover the previous configuration setting. Current Access Control List It shows the registered clients that are allowed to link to this WLAN Broadband Router. Delete Selected Click to delete the selected clients that will be access right removed from this WLAN Broadband Router. Delete All Click to delete all the registered clients from the access allowed list. Reset Click the Reset button to abort change and recover the previous configuration setting. 3.3.6 WDS Setup Wireless Distribution System uses wireless media to communicate with other APs, like the Ethernet does. To do this, you must set these APs in the same channel and set MAC address of other AP that you want to communicate with in the table and then enable the WDS. Screen snapshot – WDS Setup
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 17 Item Description Enable Wireless Distribution System Click the check box to enable wireless distribution system. Refer to 4.20 What is Wireless Distribution System (WDS)? MAC Address Fill in the MAC address of AP to register the wireless distribution system access capability. Comment Fill in the comments for the registered AP. Apply Changes Click the Apply Changes button to register the AP to new configuration setting. Reset Click the Reset button to abort change and recover the previous configuration setting. Current Access Control List It shows the registered APs that are allowed in the wireless distribution system. Delete Selected Click to delete the selected clients that will be removed from the wireless distribution system. Delete All Click to delete all the registered APs from the wireless distribution system allowed list. Reset Click the Reset button to abort change and recover the previous configuration setting. 3.3.7 LAN Interface Setup This page is used to configure the parameters for local area network that connects to the LAN ports of your WLAN Broadband Router. Here you may change the setting for IP address, subnet mask, DHCP, etc.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 18 Screen snapshot – LAN Interface Setup Item Description IP Address Fill in the IP address of LAN interfaces of this WLAN Broadband Router. Subnet Mask Fill in the subnet mask of LAN interfaces of this WLAN Broadband Router. Default Gateway Fill in the default gateway for LAN interfaces out going data packets. DHCP Server Select to enable or disable the DHCP server function on LAN interfaces from pull-down menu. DHCP Client Range Fill in the start IP address and end IP address to allocate a range of IP addresses; client with DHCP function set will be assigned an IP address from the range. Show Client Click to open the Active DHCP Client Table window that shows the active clients with their assigned IP address, MAC address and time expired information. 802.1d Spanning Tree Select to enable or disable the IEEE 802.1d Spanning Tree function from pull-down menu. Clone MAC Address Fill in the MAC address that is the MAC address to be cloned. Refer to 4.23 What is Clone MAC Address?
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 19 Apply Changes Click the Apply Changes button to complete the new configuration setting. Reset Click the Reset button to abort change and recover the previous configuration setting. 3.3.8 WAN Interface Setup This page is used to configure the parameters for wide area network that connects to the WAN port of your WLAN Broadband Router. Here you may change the access method to Static IP, DHCP, PPPoE or PPTP by click the item value of WAN Access Type. A. Static IP Screen snapshot – WAN Interface Setup – Static IP Item Description Static IP Click to select Static IP support on WAN interface. There are IP address, subnet mask and default gateway settings need to be done. IP Address If you select the Static IP support on WAN interface, fill in the IP address for it. Subnet Mask If you select the Static IP support on WAN interface, fill
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 20 in the subnet mask for it. Default Gateway If you select the Static IP support on WAN interface, fill in the default gateway for WAN interface out going data packets. DNS 1 Fill in the IP address of Domain Name Server 1. DNS 2 Fill in the IP address of Domain Name Server 2. DNS 3 Fill in the IP address of Domain Name Server 3. Clone MAC Address Fill in the MAC address that is the MAC address to be cloned. Refer to 4.23 What is Clone MAC Address? Enable uPNP Click the checkbox to enable uPNP function. Refer to 4.21 What is Universal Plug and Play (uPNP)? Apply Changes Click the Apply Changes button to complete the new configuration setting. Reset Click the Reset button to abort change and recover the previous configuration setting. B. DHCP Client Screen snapshot – WAN Interface Setup – DHCP Client Item Description DHCP Client Click to select DHCP support on WAN interface for IP
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 21 address assigned automatically from a DHCP server. Attain DNS Automatically Click to select getting DNS address for DHCP support. Please select Set DNS Manually if the DHCP support is selected. Set DNS Manually Click to select getting DNS address for DHCP support. DNS 1 Fill in the IP address of Domain Name Server 1. DNS 2 Fill in the IP address of Domain Name Server 2. DNS 3 Fill in the IP address of Domain Name Server 3. Clone MAC Address Fill in the MAC address that is the MAC address to be cloned. Refer to 4.23 What is Clone MAC Address? Enable uPNP Click the checkbox to enable uPNP function. Refer to 4.21 What is Universal Plug and Play (uPNP)? Apply Changes Click the Apply Changes button to complete the new configuration setting. Reset Click the Reset button to abort change and recover the previous configuration setting. C. PPPoE Screen snapshot – WAN Interface Setup – PPPoE Item Description
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 22 PPPoE Click to select PPPoE support on WAN interface. There are user name, password, connection type and idle time settings need to be done. User Name If you select the PPPoE support on WAN interface, fill in the user name and password to login the PPPoE server. Password If you select the PPPoE support on WAN interface, fill in the user name and password to login the PPPoE server. Connection Type Select the connection type from pull-down menu. There are Continuous, Connect on Demand and Manual three types to select. Continuous connection type means to setup the connection through PPPoE protocol whenever this WLAN Broadband Router is powered on. Connect on Demand connection type means to setup the connection through PPPoE protocol whenever you send the data packets out through the WAN interface; there are a watchdog implemented to close the PPPoE connection while there are no data sent out longer than the idle time set. Manual connection type means to setup the connection through the PPPoE protocol by clicking the Connect button manually, and clicking the Disconnect button manually. Idle Time If you select the PPPoE and Connect on Demand connection type, fill in the idle time for auto-disconnect function. Value can be between 1 and 1000 minutes. MTU Size Fill in the mtu size of MTU Size. The default value is 1400. Refer to 4.22 What is Maximum Transmission Unit (MTU) Size? Attain DNS Automatically Click to select getting DNS address for PPPoE support. Please select Set DNS Manually if the PPPoE support is selected. Set DNS Manually Click to select getting DNS address for Static IP support.DNS 1 Fill in the IP address of Domain Name Server 1. DNS 2 Fill in the IP address of Domain Name Server 2. DNS 3 Fill in the IP address of Domain Name Server 3.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 23 Clone MAC Address Fill in the MAC address that is the MAC address to be cloned. Refer to 4.23 What is Clone MAC Address? Enable uPNP Click the checkbox to enable uPNP function. Refer to 4.21 What is Universal Plug and Play (uPNP)? Apply Changes Click the Apply Changes button to complete the new configuration setting. Reset Click the Reset button to abort change and recover the previous configuration setting. D. PPTP Screen snapshot – WAN Interface Setup – PPTP –1
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 24 Screen snapshot – WAN Interface Setup – PPTP -2 Item Description PPTP Allow user to make a tunnel with remote site directly to secure the data transmission among the connection. User can use embedded PPTP client supported by this router to make a VPN connection. IP Address If you select the PPTP support on WAN interface, fill in the IP address for it. Subnet Mask If you select the PPTP support on WAN interface, fill in the subnet mask for it. Server IP Address Enter the IP address of the PPTP Server. User Name If you select the PPTP support on WAN interface, fill in the user name and password to login the PPTP server. Password f you select the PPTP support on WAN interface, fill in the user name and password to login the PPTP server. MTU Size Fill in the mtu size of MTU Size. The default value is 1400. Refer to 4.22 What is Maximum Transmission Unit (MTU) Size? Attain DNS Automatically Click to select getting DNS address for PPTP support. Please select Set DNS Manually if the PPTP support is
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 25 selected. Set DNS Manually Click to select getting DNS address for PPTP support. DNS 1 Fill in the IP address of Domain Name Server 1. DNS 2 Fill in the IP address of Domain Name Server 2. DNS 3 Fill in the IP address of Domain Name Server 3. Clone MAC Address Fill in the MAC address that is the MAC address to be cloned. Refer to 4.23 What is Clone MAC Address? Enable uPNP Click the checkbox to enable uPNP function. Refer to 4.21 What is Universal Plug and Play (uPNP)? Apply Changes Click the Apply Changes button to complete the new configuration setting. Reset Click the Reset button to abort change and recover the previous configuration setting. 3.3.9 Firewall - Port Filtering Entries in this table are used to restrict certain types of data packets from your local network to Internet through the Gateway. Use of such filters can be helpful in securing or restricting your local network. Screen snapshot – Firewall - Port Filtering Item Description
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 26 Enable Port Filtering Click to enable the port filtering security function. Port Range Protocol Comments To restrict data transmission from the local network on certain ports, fill in the range of start-port and end-port, and the protocol, also put your comments on it. The Protocol can be TCP, UDP or Both. Comments let you know about whys to restrict data from the ports. Apply Changes Click the Apply Changes button to register the ports to port filtering list. Reset Click the Reset button to abort change and recover the previous configuration setting. Delete Selected Click to delete the selected port range that will be removed from the port-filtering list. Delete All Click to delete all the registered entries from the port-filtering list. Reset Click the Reset button to abort change and recover the previous configuration setting. 3.3.10 Firewall - IP Filtering Entries in this table are used to restrict certain types of data packets from your local network to Internet through the Gateway. Use of such filters can be helpful in securing or restricting your local network.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 27 Screen snapshot – Firewall - IP Filtering Item Description Enable IP Filtering Click to enable the IP filtering security function. Local IP Address Protocol Comments To restrict data transmission from local network on certain IP addresses, fill in the IP address and the protocol, also put your comments on it. The Protocol can be TCP, UDP or Both. Comments let you know about whys to restrict data from the IP address. Apply Changes Click the Apply Changes button to register the IP address to IP filtering list. Reset Click the Reset button to abort change and recover the previous configuration setting. Delete Selected Click to delete the selected IP address that will be removed from the IP-filtering list. Delete All Click to delete all the registered entries from the IP-filtering list. Reset Click the Reset button to abort change and recover the previous configuration setting.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 28 3.3.11 Firewall - MAC Filtering Entries in this table are used to restrict certain types of data packets from your local network to Internet through the Gateway. Use of such filters can be helpful in securing or restricting your local network. Screen snapshot – Firewall - MAC Filtering Item Description Enable MAC Filtering Click to enable the MAC filtering security function. MAC Address Comments To restrict data transmission from local network on certain MAC addresses, fill in the MAC address and your comments on it. Comments let you know about whys to restrict data from the MAC address. Apply Changes Click the Apply Changes button to register the MAC address to MAC filtering list. Reset Click the Reset button to abort change and recover the previous configuration setting. Delete Selected Click to delete the selected MAC address that will be removed from the MAC-filtering list. Delete All Click to delete all the registered entries from the
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 29 MAC-filtering list. Reset Click the Reset button to abort change and recover the previous configuration setting. 3.3.12 Firewall - Port Forwarding Entries in this table allow you to automatically redirect common network services to a specific machine behind the NAT firewall. These settings are only necessary if you wish to host some sort of server like a web server or mail server on the private local network behind your Gateway's NAT firewall. Screen snapshot – Firewall - Port Forwarding Item Description Enable Port Forwarding Click to enable the Port Forwarding security function. IP Address Protocol Port Range Comment To forward data packets coming from WAN to a specific IP address that hosted in local network behind the NAT firewall, fill in the IP address, protocol, port range and your comments. The Protocol can be TCP, UDP or Both. The Port Range for data transmission. Comments let you know about whys to allow data packets forward to the IP address and port number.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 30 Apply Changes Click the Apply Changes button to register the IP address and port number to Port forwarding list. Reset Click the Reset button to abort change and recover the previous configuration setting. Delete Selected Click to delete the selected IP address and port number that will be removed from the port-forwarding list. Delete All Click to delete all the registered entries from the port-forwarding list. Reset Click the Reset button to abort change and recover the previous configuration setting. 3.3.13 Firewall - DMZ A Demilitarized Zone is used to provide Internet services without sacrificing unauthorized access to its local private network. Typically, the DMZ host contains devices accessible to Internet traffic, such as Web (HTTP) servers, FTP servers, SMTP (e-mail) servers and DNS servers. Screen snapshot – Firewall - DMZ Item Description Enable DMZ Click to enable the DMZ function.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 31 DMZ Host IP Address To support DMZ in your firewall design, fill in the IP address of DMZ host that can be access from the WAN interface. Apply Changes Click the Apply Changes button to register the IP address of DMZ host. Reset Click the Reset button to abort change and recover the previous configuration setting. 3.3.14 Statistics This page shows the packet counters for transmission and reception regarding to wireless, Ethernet LAN and Ethernet WAN networks. Screen snapshot – Statistics Item Description Wireless LAN Sent Packets It shows the statistic count of sent packets on the wireless LAN interface. Wireless LAN Received Packets It shows the statistic count of received packets on the wireless LAN interface. Ethernet LAN Sent Packets It shows the statistic count of sent packets on the Ethernet LAN interface.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 32 Ethernet LAN Received Packets It shows the statistic count of received packets on the Ethernet LAN interface. Ethernet WAN Sent Packets It shows the statistic count of sent packets on the Ethernet WAN interface. Ethernet WAN Received Packets It shows the statistic count of received packets on the Ethernet WAN interface. Refresh Click the refresh the statistic counters on the screen. 3.3.15 Upgrade Firmware This page allows you upgrade the Access Point firmware to new version. Please note, do not power off the device during the upload because it may crash the system. Screen snapshot – Upgrade Firmware Item Description Select File Click the Browse button to select the new version of web firmware image file. Upload Click the Upload button to update the selected web firmware image to the WLAN Broadband Router. Reset Click the Reset button to abort change and recover the
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 33 previous configuration setting. 3.3.16 Save/ Reload Settings This page allows you save current settings to a file or reload the settings from the file that was saved previously. Besides, you could reset the current configuration to factory default. Screen snapshot – Save/Reload Settings Item Description Save Settings to File Click the Save button to download the configuration parameters to your personal computer. Load Settings from File Click the Browse button to select the configuration files then click the Upload button to update the selected configuration to the WLAN Broadband Router. Reset Settings to Default Click the Reset button to reset the configuration parameter to factory defaults. 3.3.17 Password Setup This page is used to set the account to access the web server of Access Point. Empty user name and password will disable the protection.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 34 Screen snapshot – Password Setup Item Description User Name Fill in the user name for web management login control.New Password Fill in the password for web management login control. Confirmed Password Because the password input is invisible, so please fill in the password again for confirmation purpose. Apply Changes Clear the User Name and Password fields to empty, means to apply no web management login control. Click the Apply Changes button to complete the new configuration setting. Reset Click the Reset button to abort change and recover the previous configuration setting.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 35 4 Frequently Asked Questions (FAQ) 4.1 What and how to find my PC’s IP and MAC address? IP address is the identifier for a computer or device on a TCP/IP network. Networks using the TCP/IP protocol route messages based on the IP address of the destination. The format of an IP address is a 32-bit numeric address written as four numbers separated by periods. Each number can be zero to 255. For example, 191.168.1.254 could be an IP address. The MAC (Media Access Control) address is your computer's unique hardware number. (On an Ethernet LAN, it's the same as your Ethernet address.) When you're connected to the Internet from your computer (or host as the Internet protocol thinks of it), a correspondence table relates your IP address to your computer's physical (MAC) address on the LAN. To find your PC’s IP and MAC address,  Open the Command program in the Microsoft Windows.  Type in ipconfig /all then press the Enter button.  Your PC’s IP address is the one entitled IP Address and your PC’s MAC address is the one entitled Physical Address. 4.2 What is Wireless LAN? A wireless LAN (WLAN) is a network that allows access to Internet without the need for any wired connections to the user’s machine. 4.3 What are ISM bands? ISM stands for Industrial, Scientific and Medical; radio frequency bands that the Federal Communications Commission (FCC) authorized for wireless LANs. The ISM bands are located at 915 +/- 13 MHz, 2450 +/- 50 MHz and 5800 +/- 75 MHz. 4.4 How does wireless networking work? The 802.11 standard define two modes: infrastructure mode and ad hoc mode. In infrastructure mode, the wireless network consists of at least one access point connected to the wired network infrastructure and a set of wireless end stations. This configuration is called a Basic Service Set (BSS). An Extended Service Set (ESS) is a set of two or more BSSs forming a single subnetwork. Since most corporate WLANs require access
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 36 to the wired LAN for services (file servers, printers, Internet links) they will operate in infrastructure mode. Example 1: wireless Infrastructure Mode Ad hoc mode (also called peer-to-peer mode or an Independent Basic Service Set, or IBSS) is simply a set of 802.11 wireless stations that communicate directly with one another without using an access point or any connection to a wired network. This mode is useful for quickly and easily setting up a wireless network anywhere that a wireless infrastructure does not exist or is not required for services, such as a hotel room, convention center, or airport, or where access to the wired network is barred (such as for consultants at a client site). Example 2: wireless Ad Hoc Mode 4.5 What is BSSID? A six-byte address that distinguishes a particular a particular access point from others. Also know as just SSID. Serves as a network ID or name. 4.6 What is ESSID? The Extended Service Set ID (ESSID) is the name of the network you want to access. It is used to identify different wireless networks.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 37 4.7 What are potential factors that may causes interference? Factors of interference:  Obstacles: walls, ceilings, furniture… etc.  Building Materials: metal door, aluminum studs.  Electrical devices: microwaves, monitors and electrical motors. Solutions to overcome the interferences:  Minimizing the number of walls and ceilings.  Position the WLAN antenna for best reception.  Keep WLAN devices away from other electrical devices, eg: microwaves, monitors, electric motors, … etc.  Add additional WLAN Access Points if necessary. 4.8 What are the Open System and Shared Key authentications? IEEE 802.11 supports two subtypes of network authentication services: open system and shared key. Under open system authentication, any wireless station can request authentication. The station that needs to authenticate with another wireless station sends an authentication management frame that contains the identity of the sending station. The receiving station then returns a frame that indicates whether it recognizes the sending station. Under shared key authentication, each wireless station is assumed to have received a secret shared key over a secure channel that is independent from the 802.11 wireless network communications channel. 4.9 What is WEP? An optional IEEE 802.11 function that offers frame transmission privacy similar to a wired network. The Wired Equivalent Privacy generates secret shared encryption keys that both source and destination stations can use to alert frame bits to avoid disclosure to eavesdroppers. WEP relies on a secret key that is shared between a mobile station (e.g. a laptop with a wireless Ethernet card) and an access point (i.e. a base station). The secret key is used to encrypt packets before they are transmitted, and an integrity check is used to ensure that packets are not modified in transit. 4.10 What is Fragment Threshold? The proposed protocol uses the frame fragmentation mechanism defined in IEEE 802.11 to achieve parallel transmissions. A large data frame is fragmented into several
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 38 fragments each of size equal to fragment threshold. By tuning the fragment threshold value, we can get varying fragment sizes. The determination of an efficient fragment threshold is an important issue in this scheme. If the fragment threshold is small, the overlap part of the master and parallel transmissions is large. This means the spatial reuse ratio of parallel transmissions is high. In contrast, with a large fragment threshold, the overlap is small and the spatial reuse ratio is low. However high fragment threshold leads to low fragment overhead. Hence there is a trade-off between spatial re-use and fragment overhead. Fragment threshold is the maximum packet size used for fragmentation. Packets larger than the size programmed in this field will be fragmented. If you find that your corrupted packets or asymmetric packet reception (all send packets, for example). You may want to try lowering your fragmentation threshold. This will cause packets to be broken into smaller fragments. These small fragments, if corrupted, can be resent faster than a larger fragment. Fragmentation increases overhead, so you'll want to keep this value as close to the maximum value as possible. 4.11 What is RTS (Request To Send) Threshold? The RTS threshold is the packet size at which packet transmission is governed by the RTS/CTS transaction. The IEEE 802.11-1997 standard allows for short packets to be transmitted without RTS/CTS transactions. Each station can have a different RTS threshold. RTS/CTS is used when the data packet size exceeds the defined RTS threshold. With the CSMA/CA transmission mechanism, the transmitting station sends out an RTS packet to the receiving station, and waits for the receiving station to send back a CTS (Clear to Send) packet before sending the actual packet data. This setting is useful for networks with many clients. With many clients, and a high network load, there will be many more collisions. By lowering the RTS threshold, there may be fewer collisions, and performance should improve. Basically, with a faster RTS threshold, the system can recover from problems faster. RTS packets consume valuable bandwidth, however, so setting this value too low will limit performance. 4.12 What is Beacon Interval? In addition to data frames that carry information from higher layers, 802.11 includes management and control frames that support data transfer. The beacon frame, which is a type of management frame, provides the "heartbeat" of a wireless LAN, enabling
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 39 stations to establish and maintain communications in an orderly fashion. Beacon Interval represents the amount of time between beacon transmissions. Before a station enters power save mode, the station needs the beacon interval to know when to wake up to receive the beacon (and learn whether there are buffered frames at the access point). 4.13 What is Preamble Type? There are two preamble types defined in IEEE 802.11 specification. A long preamble basically gives the decoder more time to process the preamble. All 802.11 devices support a long preamble. The short preamble is designed to improve efficiency (for example, for VoIP systems). The difference between the two is in the Synchronization field. The long preamble is 128 bits, and the short is 56 bits. 4.14 What is SSID Broadcast? Broadcast of SSID is done in access points by the beacon. This announces your access point (including various bits of information about it) to the wireless world around it. By disabling that feature, the SSID configured in the client must match the SSID of the access point. Some wireless devices don't work properly if SSID isn't broadcast (for example the D-link DWL-120 USB 802.11b adapter). Generally if your client hardware supports operation with SSID disabled, it's not a bad idea to run that way to enhance network security. However it's no replacement for WEP, MAC filtering or other protections. 4.15 What is Wi-Fi Protected Access (WPA)? Wi-Fi’s original security mechanism, Wired Equivalent Privacy (WEP), has been viewed as insufficient for securing confidential business communications. A longer-term solution, the IEEE 802.11i standard, is under development. However, since the IEEE 802.11i standard is not expected to be published until the end of 2003, several members of the WI-Fi Alliance teamed up with members of the IEEE 802.11i task group to develop a significant near-term enhancement to Wi-Fi security. Together, this team developed Wi-Fi Protected Access. To upgrade a WLAN network to support WPA, Access Points will require a WPA software upgrade. Clients will require a software upgrade for the network interface card, and possibly a software update for the operating system. For enterprise networks, an
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 40 authentication server, typically one that supports RADIUS and the selected EAP authentication protocol, will be added to the network. 4.16 What is 802.1x Authentication? 802.1x is a framework for authenticated MAC-level access control, defines Extensible Authentication Protocol (EAP) over LANs (WAPOL). The standard encapsulates and leverages much of EAP, which was defined for dial-up authentication with Point-to-Point Protocol in RFC 2284. Beyond encapsulating EAP packets, the 802.1x standard also defines EAPOL messages that convey the shared key information critical for wireless security. 4.17 What is Temporal Key Integrity Protocol (TKIP)? The Temporal Key Integrity Protocol, pronounced tee-kip, is part of the IEEE 802.11i encryption standard for wireless LANs. TKIP is the next generation of WEP, the Wired Equivalency Protocol, which is used to secure 802.11 wireless LANs. TKIP provides per-packet key mixing, a message integrity check and a re-keying mechanism, thus fixing the flaws of WEP. 4.18 What is Advanced Encryption Standard (AES)? Security issues are a major concern for wireless LANs, AES is the U.S. government’s next-generation cryptography algorithm, which will replace DES and 3DES. 4.19 What is Inter-Access Point Protocol (IAPP)? The IEEE 802.11f Inter-Access Point Protocol (IAPP) supports Access Point Vendor interoperability, enabling roaming of 802.11 Stations within IP subnet. IAPP defines messages and data to be exchanged between Access Points and between the IAPP and high layer management entities to support roaming. The IAPP protocol uses TCP for inter-Access Point communication and UDP for RADIUS request/response exchanges. It also uses Layer 2 frames to update the forwarding tables of Layer 2 devices. 4.20 What is Wireless Distribution System (WDS)? The Wireless Distribution System feature allows WLAN AP to talk directly to other APs via wireless channel, like the wireless bridge or repeater service.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 41 4.21 What is Universal Plug and Play (uPNP)? UPnP is an open networking architecture that consists of services, devices, and control points. The ultimate goal is to allow data communication among all UPnP devices regardless of media, operating system, programming language, and wired/wireless connection. 4.22 What is Maximum Transmission Unit (MTU) Size? Maximum Transmission Unit (MTU) indicates the network stack of any packet is larger than this value will be fragmented before the transmission. During the PPP negotiation, the peer of the PPP connection will indicate its MRU and will be accepted. The actual MTU of the PPP connection will be set to the smaller one of MTU and the peer’s MRU. The default is value 1400. 4.23 What is Clone MAC Address? Clone MAC address is designed for your special application that request the clients to register to a server machine with one identified MAC address. Since that all the clients will communicate outside world through the WLAN Broadband Router, so have the cloned MAC address set on the WLAN Broadband Router will solve the issue.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 42 5 Configuration Examples 5.1 Example One – PPPoE on the WAN Sales division of Company ABC likes to establish a WLAN network to support mobile communication on sales’ Notebook PCs. MIS engineer collects information and plans the WLAN Broadband Router implementation by the following configuration. WAN configuration: PPPoE User Name H890123456 Password PW192867543210 LAN configuration IP Address 192.168.1.254 Subnet Mask 255.255.255.0 Default Gateway 0.0.0.0 DHCP Client Range 192.168.1.100 – 192.168.1.200 WLAN configuration SSID MyWLAN Channel Number 11 Internet xDSL/ CMPower adapterEthernetCable Ethernet cableSSID: MyWLANChannel: 11 DHCP clientSSID: MyWLANChannel: 11 DHCP clientSSID: MyWLANChannel: 11 DHCP clientSSID: MyWLANChannel: 11 DHCP clientDHCP clientBridge modePPPoE connection parameters:User Name: H890123456Passwrod: pw192867543210SSID: MyWLANChannel: 11DHCP range: 192.168.1.100 to 192.168.1.200 Figure 3 – Configuration Example One – PPPoE on the WAN
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 43 Configure the WAN interface: Open WAN Interface Setup page, select PPPoE then enter the User Name “H890123456” and Password “PW192867543210”, the password is encrypted to display on the screen. Press button to confirm the configuration setting. Configure the LAN interface: Open LAN Interface Setup page, enter the IP Address “192.168.1.254”, Subnet Mask “255.255.255.0”, Default Gateway “0.0.0.0”, enable DHCP Server, DHCP client range “192.168.1.100” to “192.168.1.200”. Press button to confirm the configuration setting.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 44 Configure the WLAN interface: Open WLAN Interface Setup page, enter the SSID “MyWLAN”, Channel Number “11”. Press button to confirm the configuration setting. 5.2 Example Two – Fixed IP on the WAN Company ABC likes to establish a WLAN network to support mobile communication on all employees’ Notebook PCs. MIS engineer collects information and plans the WLAN Broadband Router implementation by the following configuration. WAN configuration: Fixed IP IP Address 192.168.2.254 Subnet Mask 255.255.255.0 Default Gateway 192.168.2.10 DNS Address 168.95.1.1 LAN configuration IP Address 192.168.1.254 Subnet Mask 255.255.255.0 Default Gateway 192.168.2.254 DHCP Client Range 192.168.1.100 – 192.168.1.200 WLAN configuration SSID MyWLAN Channel Number 11
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 45 Internet xDSL/ CMPower adapterEthernetCableEthernet cableSSID: MyWLANChannel: 11 DHCP clientSSID: MyWLANChannel: 11 DHCP clientSSID: MyWLANChannel: 11 DHCP clientSSID: MyWLANChannel: 11 DHCP clientDHCP clientRouter modeSSID: MyWLANChannel: 11DHCP range: 192.168.1.100 to 192.168.1.200192.168.2.10/ 255.255.255.0192.168.2.254/ 255.255.255.0 Figure 4 – Configuration Example Two – Fixed IP on the WAN
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 46 Configure the WAN interface: Open WAN Interface Setup page, select Fixed IP then enter IP Address “192.168.2.254”, subnet mask “255.255.255.0”, Default gateway “192.168.2.10”. Press button to confirm the configuration setting. Configure the LAN interface: Open LAN Interface Setup page, enter the IP Address “192.168.1.254”, Subnet Mask “255.255.255.0”, enable DHCP Server, DHCP client range “192.168.1.100” to “192.168.1.200”. Press button to confirm the configuration setting.
USER’S MANUAL OF WLAN BROADBAND ROUTER Version: 2.6 47 Configure the WLAN interface: Open WLAN Interface Setup page, enter the SSID “MyWLAN”, Channel Number “11”. Press button to confirm the configuration setting.

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