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Before You Use

 

 vii 

 

ARP Proxy 

Security Features 

 

PAP (RFC1334), CHAP (RFC1994) for PPP session 

 

Firewall support IP packets filtering based on IP address/Port number/Protocol type and TCP code field flags   

 

Intrusion Detection provides protection from a number of attacks (such as SYN/FIN/RST Flood, Smurf, 
WinNuke, Echo Scan, Xmas Tree Scan, etc) 

 

WEP (Wired Equivalent Privacy) encryption uses RC4 with 64/128 bit key length (for wireless ADSL router only)

 

Wireless LAN Features

 

 

 

Fully compatible to IEEE 802.11b standard and allow operating range up to 300 meters (open space) and 100 
meters (indoor). 

 

The Direct Sequence Spread Spectrum (DSSS) technology is exploited. 

 

Seamless roaming within the 802.11 and 802.11b wireless LAN infrastructure 

 

Low power consumption via efficient power management 

Configuration and Management 

 

User-friendly embedded web configuration interface with password protection 

 

Remote management accesses control 

 

Telnet session for local or remote management 

 

HTTP firmware upgrades via web browser GUI directly 

 

Distribute IP addresses to end users via DHCP server provided by ADSL router 

 

SNMPv1/v2c agent with MIB-II, PPP MIB, ADSL Line MIB. 

Note: 
*1 This is optional. TR-037 Autopvc provisioning can be provided on demand. 
*2 This is optional. UPnP IGD and NAT Traversal function can be provided on demand. 
*3 This is optional. DNS server can be provided on demand. 

System Requirements 

For using this, you have to make sure you have the following that installed on the clients: 

For Ethernet Clients 

 

Operating System must be Windows98/2000/NT/ME/XP 

 

10/100 Base-T NIC 

 

10/100 Base-T(UTP) network cable 

 

A Hub 

For Wireless Clients 

 

Operating System must be Windows98/2000/NT/ME/XP 

 

Wireless card installed 

 

Wireless card driver 

Unpacking 

Check the contents of the package against the pack contents checklist below. If any of the items is missing, then 
contact the dealer from whom the equipment was purchased. 

 

ADSL Router 

 

Summary of Contents for ZXDSL-531B

Page 1: ...ZXDSL 531B ADSL Router User s Manual Rev 01 2003 05 27 ...

Page 2: ... may be reproduced in any form by any means without the prior written permission Other trademarks or brand names mentioned herein are trademarks or registered trademarks of their respective companies 2003 05 27 Rev 01 000300ies rta ...

Page 3: ... this product When the product is expected to be not in use for a period of time unplug the power cord of the product to prevent it from the damage of storm or sudden increases in rating For Service Do not attempt to disassemble or open covers of this unit by yourself Nor should you attempt to service the product yourself which may void the user s authority to operate it Contact qualified service ...

Page 4: ... Mode 7 MER Mode 9 PPPoA NAT Mode 10 PPPoE NAT Mode 11 PPPoE Relay 12 Multiple PVCs Mode 13 Chapter 4 Configuration 15 Setting TCP IP on Client PC 15 For Windows 98 15 For Windows ME 18 For Windows NT 20 For Windows 2000 23 For Windows XP 25 Configure PC to get IP address from DHCP 26 For Windows 98 26 For Windows ME 27 For Windows NT 27 For Windows 2000 27 For Windows XP 28 Renew IP Address on Cl...

Page 5: ...38 DSL Connection 38 WAN Connection 38 Traffic Counter 39 Routing Table 39 DHCP Table 39 Wireless Client 39 Configuration 40 DSL Configuration 40 LAN Configuration 40 WLAN Configuration 44 WAN Configuration 46 IP Route 48 DNS 49 Security 51 Virtual Server 56 IGMP Proxy 58 UPnP Optional 59 Chapter 6 Troubleshooting 62 Problems with LAN 62 Problems with WAN 62 Problems with Upgrading 63 Chapter 7 Gl...

Page 6: ...ompliant to ATM Forum UNI 3 1 4 0 Permanent Virtual Circuits PVCs Support up to 8 AAL5 Virtual Circuit Channels VCCs for UBR CBR VBR rt and VBR nrt with traffic shaping TR 037 Auto PVC 1 auto provisioning RFC1483 RFC2684 LLC Encapsulation and VC Multiplexing over AAL5 RFC2364 Point to Point Protocol PPP over AAL5 RFC2225 Classical IP and ARP over ATM RFC2516 PPP over Ethernet support Relay Transpa...

Page 7: ...face with password protection Remote management accesses control Telnet session for local or remote management HTTP firmware upgrades via web browser GUI directly Distribute IP addresses to end users via DHCP server provided by ADSL router SNMPv1 v2c agent with MIB II PPP MIB ADSL Line MIB Note 1 This is optional TR 037 Autopvc provisioning can be provided on demand 2 This is optional UPnP IGD and...

Page 8: ...to subscribe for ADSL service from your broadband service provider According to the service type you subscribe you will get various IP addresses Dynamic IP If you apply for dial up connection you will be given an Internet account with username and password You will get a dynamic IP by dialing up to your ISP Static IP address If you apply for full time connectivity you may get either one static IP ...

Page 9: ...peration parameters located in FLASH memory is in progress DIAG Green Solid Initial self test failure or programming FLASH memory failure Unlit Power off or no Ethernet carrier is present Blinking Ethernet carrier is present and user data is going through Ethernet port LAN1 to LAN4 Green Solid Ethernet carrier is present Unlit Power off or no radio signal WLAN card is not present or fails to funct...

Page 10: ... LAN Ethernet 10 100 Base T auto sensing Reset Reset to factory settings Console Console connector Power switch 12VDC Power connector Note The Router incorporates a four port switch for connection to your local Ethernet network The Ethernet ports are marked LOCAL and are capable of operation at either 10 Mbps 10 BASE T or 100 Mbps 100 BASE Tx ...

Page 11: ...ated devices 1 Remove the end of the phone line from your phone connector and plug it onto the LINE port of the POTS Splitter Use another phone line to connect your phone and splitter Plug this phone line onto the PHONE port of the ADSL splitter and plug the other end of the line onto your phone 2 Use the line to connect the ADSL splitter MODEM port and router s DSL port 3 Please attach one end of...

Page 12: ... For Full Rate G dmt standard a POTS Splitter is necessary on subscriber s premise to keep the telephone and ADSL signals separated giving them the capability to provide simultaneous Internet access and telephone service on the same line To connect a POTS Splitter 1 Connect the port Phone to your telephone 2 Connect the port Modem to your ADSL Router 3 Connect the port Line to the ADSL wall jack ...

Page 13: ...computer well and get into Internet successfully please make sure the following first 1 Make sure you have installed a network interface card onto your computer 2 Make sure the connection between the ADSL and your computer is OK 3 Check to see the TCP IP protocol and set the IP address as Auto Get IP Address When you are sure all above is Ok you can open the Browser and type in 192 168 100 100 and...

Page 14: ...are Therefore it does not require a public IP address It only has a default private IP address 192 168 100 100 for management purpose Configuration 1 Choose a client PC and set the IP as 192 168 100 x x is between 2 and 254 and the gateway as 192 168 100 100 2 Start up your browser and type 192 168 100 100 as the address to enter the web based manager 3 Go to Configuration WAN Configuration Create...

Page 15: ...68 100 100 as the address to enter this ADSL web based manager 2 Go to Configuration WAN Configuration Create a new PVC and select the Data Mode RFC1483 Routed Then click Next button 3 Enter the VPI VCI values provided by your ISP and select the encapsulation type as LLC SNAP or VC MUX Then click Apply 4 Set IP configuration for Local WAN IP Address Choose Specify an IPAddress item Please set as t...

Page 16: ...ation successfully And you can surf on the Internet Note If you have multiple PCs on the LAN you may enable DHCP function on the private or public IP address The ADSL Router implements a built in DHCP server which assigns IP addresses to the clients PCs on the LAN ...

Page 17: ...ect the Data Mode RFC1483 MER Then click Next button 3 Enter the VPI VCI values provided by your ISP and select the encapsulation type as LLC SNAP or VC MUX Then click Apply 4 Set IP configuration for Local WAN IP Address Choose Specify an IPAddress item Please set as the following example IP Address 10 3 86 105 should be the one that you get from ISP Subnet Mask 255 255 255 0 should be the one th...

Page 18: ...the IP information for clients to access the Internet Configuration 1 Start up your browser and type 192 168 100 100 as the address to enter this ADSL web based manager 2 Go to Configuration WAN Configuration Create a new PVC and select the Data Mode PPPoA Then click Next button 3 Enter the VPI VCI values provided by your ISP and select the encapsulation type as LLC SNAP or VC MUX 4 Fill in the Us...

Page 19: ...ation for clients to access the Internet Configuration 1 Start up your browser and type 192 168 100 100 as the address to enter this ADSL web based manager 2 Go to Configuration WAN Configuration Create a new PVC and select the Data Mode PPPoE Then click Next button 3 Enter the VPI VCI values provided by your ISP and select the encapsulation type as LLC SNAP or VC MUX 4 Fill in the User Name and P...

Page 20: ...iguration 1 Choose a client PC and set the IP as 192 168 100 x x is between 2 and 254 and the gateway as 192 168 100 100 Or enter the IP address that came from the ISP DHCP server of the Router 2 Start up your browser and type 192 168 100 100 as the address to enter the web based manager 3 Go to Configuration WAN Configuration Create a New PVC and select the Data Mode RFC1483 Bridged Then click Ne...

Page 21: ...ccording to the sequence they are created Therefore the default route will be the last PVC you created You can also modify the default route manually from the IPRoute page The traffic from CPE side will be sent to different PVCs according to the routing rules Configuration 1 Start up your browser and type 192 168 100 100 as the address to enter this ADSL web based manager 2 Create the first PVC e ...

Page 22: ...ADSL Router User Manual 14 ...

Page 23: ...100 100 and subnet mask of 255 255 255 0 As the DHCP server is Enable by default The DHCP clients should be able to access the ADSL Router Or you could assign an IP address to the host PC first for initial configuration You also can manage the ADSL Router through a web browser based manager ADSL ROUTER CONTROL PANEL The ADSL Router manager uses the HTTP protocol via a web browser to allow you to s...

Page 24: ...ion tab check out the list of installed network components Option 1 If you have no TCP IP protocol click Add Option 2 If you have TCP IP protocol go to Step 6 Your network interface card Check out if TCP IP for your NIC is installed or not 4 Highlight Protocol and click Add ...

Page 25: ...urning to Network window highlight TCP IP protocol for your NIC and click Properties 7 On IPAddress tab Enable Specify an IP address option Enter the IPAddress 192 168 10000 x x is between 2 and 254 and Subnet Mask 255 255 255 0 as in figure below On Gateway tab Add a gateway IP address 192 168 100 100 8 When returning to Network window click OK ...

Page 26: ...e click the Network icon 3 The Network window appears On the Configuration tab check out the list of installed network components Option 1 If you have no TCP IP protocol click Add Option 2 If you have TCP IP protocol go to Step 6 4 Highlight Protocol and click Add 5 On the left side of the windows highlight Microsoft and then select TCP IP on the right side Then click OK 6 While returning to Netwo...

Page 27: ...ddress 192 168 100 x x is between 2 and 254 Subnet Mask 255 255 255 0 and Default gateway 192 168 100 100 Then click OK 8 While returning to the Network window click OK 9 Wait for Windows copying files 10 When prompted with the System Settings Change dialog box click Yes to restart your computer ...

Page 28: ...en click Control Panel 2 Double click the Network icon 3 The Network window appears On the Protocols tab check out the list of installed network components Option 1 If you have no TCP IP Protocol click Add Option 2 If you have TCP IP Protocol installed go to Step 7 4 Highlight TCP IP Protocol and click OK ...

Page 29: ...to use DHCP 6 Insert the Windows NT CD into your CD ROM drive and type the location of the CD Then click Continue 7 Returning to the Network window you will find the TCP IP Protocol among the list Select TCP IP Protocol and click Properties ...

Page 30: ...he IPAddress 192 168 100 x x is between 2 and 254 and Subnet Mask 255 255 255 0 and Default Gateway 192 168 100 100 as in figure below 9 When returning to Network window click Close 10 When prompted with Network Settings Change dialog box click Yes to restart your computer ...

Page 31: ...lick Network and Dial up Connections 2 Right click the Local Area Connection icon and then click Properties 3 On the General tab check out the list of installed network components Option 1 If you have no TCP IP Protocol click Install Option 2 If you have TCP IP Protocol go to Step 6 4 Highlight Protocol and then click Add ...

Page 32: ...window highlight Internet Protocol TCP IP and then click Properties 7 Under the General tab enable Use the following IPAddress Enter the IP address 192 168 100 x x is between 2 and 254 Subnet Mask 255 255 255 0 and Default gateway 192 168 100 100 Then click OK When prompted to restart your computer reboot it to enable the settings ...

Page 33: ... 1 If you have no TCP IP Protocol click Install Option 2 If you have TCP IP Protocol go to Step 6 4 Highlight Protocol and then click Add 5 Click Internet Protocol TCP IP and then click OK 6 On the Local Area Connection Properties window highlight Internet Protocol TCP IP and then click Properties 7 Under the General tab enable Use the following IP address Enter the IP address 192 168 100 x x is b...

Page 34: ...nt PCs to obtain a dynamic IP address Please follow the previous section to install TCP IP component Only that you do not need to specify an IP address when configuring TCP IP properties The following section describe the procedures for CPEs to get IP address F Fo or r W Wi in nd do ow ws s 9 98 8 On the IPAddress tab select Obtain an IP address automatically Then click OK ...

Page 35: ...or r W Wi in nd do ow ws s N NT T On the IPAddress tab click on the drop down arrow of Adapter to select required adapter Enable Obtain an IP address from a DHCP server and then click OK When prompted with the message below click Yes to continue F Fo or r W Wi in nd do ow ws s 2 20 00 00 0 Enable Obtain an IP address automatically and then click OK ...

Page 36: ...ADSL Router User Manual 28 F Fo or r W Wi in nd do ow ws s X XP P On the IPAddress tab select Obtain an IP address automatically Then click OK ...

Page 37: ...enew PC s IP address F Fo or r W Wi in nd do ow ws s 9 98 8 1 Select Run from the Start menu 2 Type winipcfg in the dialog box and the click OK 3 When the figure below appears click Release and then Renew to get an IP address F Fo or r W Wi in nd do ow ws s M ME E 1 Select Run from the Start menu 2 Type winipcfg in the dialog box and the click OK 3 When the figure below appears click Release and t...

Page 38: ... menu point to Programs Accessories and then click Command Prompt 2 Type ipconfig at prompt Then you will see the IP information from DHCP server 3 If you want to get a new IP address type ipconfig release to release the previous IP address and then type ipconfig renew to get a new one F Fo or r W Wi in nd do ow ws s X XP P 1 From the Start menu point to Programs Accessories and then click Command...

Page 39: ...Chapter 4 Configuration 31 ...

Page 40: ...ndows XP If you login successfully the main page of ADSL ROUTER CONTROL PANEL appears From now on the ADSL Router acts as a web server sending HTML pages forms on your request You can fill in these pages forms and apply them to the ADSL Router O Ou ut tl li in ne e o of f W We eb b M Ma an na ag ge er r The home page is composed of 3 areas Title It indicates the title of this management interface ...

Page 41: ...ill only be stored to the DRAM If you do not execute Save Restart the customizations will not take effect for rebooting the ADSL Router next time Save Restart button When Save is clicked your customizations will be saved to the flash memory After clicking Restart your customizations take effect Quick start On this page you can select the VPI VCI value for the connection mode you use Execute Apply ...

Page 42: ...uter A Ad dm mi in ni is st tr ra at ti io on n There are three types of administration Account Remote Access and Web Port Account It limits this web based manager access to users with the correct user name and password After entering user name password click Apply By default both the user name and password values are admin To change the user account type in the new user name new password and rety...

Page 43: ...se time and click Enable to enable this setting Please click the first radio button and type in the duration time on the box or click on the second radio button to choose unlimited time To disable this function just click Disable Web Port The default web server port is 80 You can change the web server port to another one and then click Apply to enable this setting Note Clicking Apply will enable t...

Page 44: ...cting the desired file please click Restore to use it for current web page S Sa av ve e C Co on nf fi ig gu ur ra at ti io on n This page allows you to save all current configuration settings to non volatile memory Please wait for several seconds to complete this process U Up pg gr ra ad de e S So of ft tw wa ar re e The ADSL Router supports the upgrading by using HTTP To transfer the firmware fil...

Page 45: ...ou to restart your router for invoking new configuration After restarting you should wait for several seconds to let the system come up When restarting the system your brower session will be disconnected Please wait until the device finish restarting Note If Reset to factory default settings is checked the settings will return to factory defaults including the Username and Password ...

Page 46: ...es the signal attenuation caused by line length It increases with line length and frequency and decreases as wire diameter increases Noise Margin Signal to noise ratio The ratio of good data signal to bad noise on the line that is expressed in decibels dB Loss of Signal Frame Indicates the loss of signals or frames detected CRC Error Cyclic Redundancy Checksum generated Line Up Count The number of...

Page 47: ...bl le e This page shows all the routing rules of data packets going through your ADSL Router if it runs in routing mode By clicking Refresh all the records will be reset D DH HC CP P T Ta ab bl le e This page shows all DHCP clients who get their IP addresses from your ADSL Router For each DHCP client it shows the Host Name MAC Address IPAddress and the Lease Time W Wi ir re el le es ss s C Cl li i...

Page 48: ...and then click Apply The DSL line mode you specify will be applied to the entire ADSL Router unit All ATM PVC profiles created will use the same line mode Consult your ISP to find out which option applies to your DSL line L LA AN N C Co on nf fi ig gu ur ra at ti io on n For the LAN Configuration there are two types that you have to know IP Address and DHCP Server IP Address LAN Configuration allo...

Page 49: ...assigned by ISP in the public IP address field DHCP Server This page allows you to enable DHCP server on LAN interface and then your router can assign IP addresses to those PCs connected to your router The ADSL Router implements a built in DHCP Dynamic Host Configuration Protocol server which dynamically assigns IP addresses and DNS server to the PCs on the LAN DHCP function spares you the hassle ...

Page 50: ...s function Primary DNS server address Type in the first DNS server address that you get from your ISP Secondary DNS server address Type in the second DNS server address that you get from your ISP Domain Name Servers You can check the Report this host as the DNS server box to use this host as the default DNS Or you can uncheck the box and manually set up the DNS IP address in the Primary Secondary ...

Page 51: ...Chapter 5 Web Configuration 43 ...

Page 52: ...hat want to communicate with the ADSL Router must have the same SSID as it Frequency Domain The frequency in which the radio links are about to be established Desired Channel The frequency in which the radio links are about to be established Select channel that you want Usually the wireless clients will scan the whole operable channels and then select the desired communications channel automatical...

Page 53: ...SSID to associate itself to the device Turns on encryption Wired Equivalent Privacy Mechanism is Turns on You should select the encryption key length as 64 or 128 bit key Then enter the encryption key in Key Entry fields Note When Wired Equivalent Privacy Mechanism is enabled the wireless client must be configured with exactly the same encryption level 64 or 128 bit and encryption key as identifie...

Page 54: ...existing ATM PVC interface and click Modify to edit its parameters or click Delete if you want to delete it To add a new PVC interface click Create a new PVC and follow these steps 1 Select one of connection type in the Data Mode RFC1483 Bridged RFC1483 Routed RFC1483 MER PPPoA or PPPoE and click Next 2 Fill in the VPI VCI values and select ATM Service Type Encapsulation Type and PCR 3 Click Apply...

Page 55: ...Specify the PCR cells per second Encapsulation Type There are two types for your choosing VC MUX or LLC SNAP Select the encapsulation based on the setting of the ISP Consult your ISP for this information Local WAN IPAddress On Router mode selecting None means you have public LAN IP address setting If you select Specify an IP address you can specify a WAN IP provided by ISP for your router If Serve...

Page 56: ... Static Routing If you set up more than one PVC profiles and the first PVC is deleted then you have to manually add the default routing I IP P R Ro ou ut te e This web page allows you to set the route for data transmission Static Route This page shows all static route status and allows you to add new static IP route or delete IP route A Static IP Routing is a manually defined path which determines...

Page 57: ... down list select which RIP version should be broadcasted RIP disable RIPv1 RIPv2 and both D DN NS S DNS Relay On this page you can choose to disable or enable DNS Relay function If your DNS is disabled and you choose to enable DNS relay after selecting the Enabled option please click Configure and then specify up to three DNS IP addresses in the DNS server 1 3 IP address fields Then click Apply t...

Page 58: ...ked If you have been setting before the page will show all the DNS Relay status To disable DNS relay just select the Disabled option then click Configure To modify setting select enable and click Configure again DNS Server The DNS server address will be passed to the DHCP clients along with the IP address and the DHCP clients use the DNS to map a domain name to its corresponding IP address and vic...

Page 59: ...lease click Create a new DNS hostname entry manually button Then fill in the Hostname and IP address and click Apply Delete Hostname Entry To delete the hostname entry select the required one from the DNS hostname table After confirming the data click Delete Note 1 When DNS Relay is disabled the DNS server function is invalid 2 If DNS IP is left as 0 0 0 0 then you should specify the DNS on each c...

Page 60: ...and IP Sec Packet for passing through Yet when the firewall is enabled with choosing Low Medium or High your system will follow the rule listed on the table of default policies for managing the access in out Internet to forward packet If you found some software cannot work properly while enabling firewall but can work while disabling firewall you have to select Advance User define to configure the...

Page 61: ...ate a new filtering rule will appear Click on this button to get into next page Example Here provides you the way and the result of creating a new filtering rule This is just an example and just for your reference If you want enable the firewall and access into PPTP server for some reason you can Set the protocol type as TCP and set the port range value start point as 1723 or Set the protocol type...

Page 62: ...ter Out Bound means the data is transferred from your computer onto outside through Internet Block stops the data transmission Allow lets the data pass through After configuring the settings please click Apply and the new one you created will be shown on the table Intrusion Detection This page displays the rules for intrusion detection The purpose of intrusion detection is to detect any attacks th...

Page 63: ...ion we are going to keep it in the list to avoid the continuous attack against this victim The unit is defined in second Maximum TCP Open Handshaking Count The maximum number of unfinished TCP handshaking session will trigger IDS for SYN flood per second Maximum Ping Count The maximum number of PINGs per second will trigger IDS for echo storm Maximum ICMP Count The maximum number of ICMP packets o...

Page 64: ...cal server the router will recognize the service type according to the port number in this packet e g port 80 indicates HTTP service and port 21 indicates FTP service By specifying the port number you tell the router which service should be forwarded to the local IP address you specify After you setting the virtual server you should modify the filter rule whichever port and service you set on virt...

Page 65: ...nd 25 SMTP IPAddress Specify the internal IP address to which the packets are forwarded Then follow the steps below 1 Select the ATM PVC interface 2 Select the protocol type from the drop down list 3 Select a service in TCP IP Port field and enter the port number you want to use 4 Enter the IP address of the internal server in the IP Address filed and enter the TCP IP port information in the TCP I...

Page 66: ... through the exchange of IGMP messages However when acting as the proxy the system performs the host portion of the IGMP task as follows When it is queried the system will send group membership reports to the group ʳ When one of the hosts joins a multicast address group to which none of other hosts belong the system will send unsolicited group membership reports to that group ʳ When the last of ho...

Page 67: ... to the Internet To enable UPnP function just check the Enable UPnP Function box and then click Apply to activate the function Only Windows XP supports UPnP function Before checking this function for proper using you have to install UPnP component to your computer first Otherwise the function will not take effect even click on Enable UPnP IGD Function Please follow the steps below for installing U...

Page 68: ...an icon ex ZXDSL 531B for UPnP function ZXDSL 531B 6 Double click on the icon the ADSL router will open another web page with port 2800 for UPnP function The IE address will be changed as shown as the following graphic http 192 168 100 100 2800 index html 7 Now the NAT traversal function will be provided The ADSL router will create a new virtual server automatically for mapping while the router de...

Page 69: ...Chapter 5 Web Configuration 61 192 168 100 2 192 168 100 2 ...

Page 70: ... to routing mode and you use private IP addresses on the LAN go to WAN Configuration ATM PVC Setup the ATM PVC Interface page Make sure that Enable network address Translation NAT is checked Check the IP settings Go to LAN Configuration IP Address page ensure you specify IP address on Public IP Address field Or go to WAN Configuration ATM PVC Setup the ATM PVC Interface page ensure you specify IP ...

Page 71: ...at is wrong Action Make sure that your firmware file format is valid or get a new firmware file Error Message invalid hardcode Possible cause The firmware file is not compatible with the model of your ADSL Router Action Download a compatible firmware from the web Error Message unknown flags type Possible cause The firmware version is not compatible Action Download a compatible firmware from the we...

Page 72: ...ter and perform the upgrade task again Error Message firmware update in process Possible cause The upgrade is already in process Action Do not turn off your ADSL Router otherwise you will cause damage to the device Error Message no remote server IP Possible cause The IP address of the TFTP server is not specified Action Specify the IP address of the TFTP server is not specified Error Message can t...

Page 73: ...Chapter 6 Troubleshooting 65 ...

Page 74: ...omputer network limited to the immediate area usually the same building or floor of a building A WAN on the other hand is an outside connection to another network or the Internet The Ethernet side of the ADSL Router is called the LAN port It is a twisted pair Ethernet 10Base T interface A hub can be connected to the LAN port More than one computers such as server or printer can be connected throug...

Page 75: ...Information Protocol RIP is a routing protocol that uses the distance vector routing algorithms to calculate least hops routes to a destination It is used on the Internet and is common in the NetWare environment It exchanges routing information with other routers It includes V1 V2 and V1 V2 which controls the sending and receiving of RIP packets over Ethernet UDP User Datagram Protocol UDP is a co...

Page 76: ... functions OAM F4 F5 End to End Segment Loopback Cells Bridging Features Supports self learning bridge specified in IEEE 802 1D Transparent Bridging Supports up to 4000 learning MAC addresses Transparent bridging among 10 100 Mb Ethernet and 802 11b LAN interfaces Routing Features UPnP IGD Internet Gateway Device with NAT traversal capability support NAT Network Address Translation PAT Port Addres...

Page 77: ...e with password protection Remote management accesses control Telnet session for local or remote management HTTP firmware upgrades via web browser GUI directly Distribute IP addresses to end users via DHCP server provided by ADSL router SNMPv1 v2c agent with MIB II PPP MIB ADSL Line MIB H Ha ar rd dw wa ar re e Interface One RJ 11 port for ADSL connection Four RJ 45 port for IEEE 802 3 10 100 Base...

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