ADSL Westell 6100 + LinkSys WRT54G = Issues

Discussion in 'Cisco/Linksys Wireless Routers' started by kholliday, Nov 25, 2006.

  1. kholliday

    kholliday Guest


    I currently have a Westell 6100 ADSL Modem that also functions as a router. I am attempting to set up my LinkSys WRT54G Wireless Router to distribute the DSL connection throughout my home.

    I am running into two problems with this…

    1) Both devices are routers and so I cannot get Internet Connectivity to work through the WRT54G
    (neither wired or wireless)


    2) I will be setting up some port forwarding as well on the Westell 6100. So I essentially need to turn the WRT54G into a Switch/Wireless Access Point since double port forwarding is from what I hear impossible or very difficult.

    I will attempt to list all relevant information. If I leave anything out please let me know.

    ADSL Service Provider: Bellsouth Fast Access 6.0
    ADSL Modem/Router Model: Westell 6100
    ADSL Modem/Router Firmware: 03.06.02
    ADSL Modem/Router Configuration: PPPoE / DHCP Server Enabled
    ADSL Modem/Router IP:

    LinkSys Router Model: WRT54G
    LinkSys Router Firmware: 3.03.6
    LinkSys Router Configuration: DHCP Server Disabled
    LinkSys Router IP:

    Number of PC's Connected via Ethernet: 2 (Windows XP with SP2)
    Number of PC's Connected via Wireless: 1 (Windows XP with SP2)

    NOTE: Not that I think it matters but I will also be setting up a game system to this via wireless.

    I was assuming that the DHCP Server would need to be disabled on the WRT54G, but even with that completed I still receive no Internet Connectivity via Ethernet or Wireless from the WRT54G.

    I have also tried connecting the Westell 6100 Modem/Router into the WRT54G's Internet Port or standard Ethernet Port. I receive the same result both ways - no Internet Connectivity.

    If someone could please assist me with solving these two problems I would be very grateful.

    Thank You,

    P.S.: I apologize for my first post being a question but my roommates are trying to kill me because we have no Internet throughout the home. Well, except on one PC at a time.
  2. carter4802

    carter4802 Guest

    I am having the same problem i cant even set my router up because it wont connect to the internet that way, i hope someone can help me!
  3. Tragedy

    Tragedy LI Guru Member

    This is happening because your LAN network is on the same subnet (network) as your WAN network (both are 192.168.1.x).

    Easiest way around this is to change the IP of your router to from192.168.1.1. After you apply the change, release and renew your ip on your pc (start > run > cmd, ipconfig /release and then ipconfig /renew). You should get a 192.168.2.x number. Reconnect to your router from now on by going to You can still connect to your westell modem by going to You should be able to get online now.

    Also, if you need to open ports for gaming, go into your westell modem and enable IP Passthrough for your router, then configure all the port numbers in the linksys router. This step isn't necessary if you can already do everything you want to online.

    Hope this helps.
  4. Tragedy

    Tragedy LI Guru Member

    Edit: Enable DHCP for both devices. Effectively, your DSL modem gives the IP address to your router's WAN side (and WAN side only), and then your router gives IP addresses to the clients. If you disable DHCP in your router, you will have to statically assign IP addresses on each computer (, Subnet:, Gateway:, DNS: DHCP is preferred unless you have a very specific reason not to use it.
  5. sozekizer

    sozekizer LI Guru Member

    Several things:
    1. You must bridge the Westell 6100. Here are the steps:
    Prerequisite: You must run an ethernet cable directly between one computer and the modem in order to perform the steps below.
    A. Log into the modem. (default username: admin default password: password. Your ISP may have software which resets this to your ISP chosen username/password)
    B. Select Configuration->VC Configuration.
    C. Verify w/ your ISP what the VPI/VCI settings should be. Typically for PPPoE they are 0 and 35. Whichever the selection, you will need to select Edit on the line containing the correct VPI/VCI.
    D. Protocol needs to be changed to Bridge
    E. Select Set VC. The modem will soft reset on its own.
    F. Once it returns to the Westell Home Page (connection overview) you will need to select Configuration->DHCP Configuration. Turn off DHCP and Select Save.
    G. Select Configuration->Private LAN DHCP Configuration. Make sure the uppermost option is NOT selected. You're finished w/ the modem now.
    H. Add the router back into the mix. Log into the router. You need to do all this also w/ a hard-wired connection between the pc and the router.
    I. On the setup page, change Internet Connection Type to PPPoE and enter your username and password. If you don't know this information your ISP support can provide it to you.
    J. Apply the settings. After the setup page reloads you will need to select Status and verify the Internet IP Address.
    K. From here, enable the wireless within the router and configure it to your requirements.
    You should be good to go from here.
    A couple notes: if you can't access the Westell GUI, you may need to reset it. Hold in the reset button for no more than 30 seconds. When you're finished you'll see the lights cycle twice (about 15 seconds). Wait for the DSL light to go solid green the second time before you do anything else.
    The IP for the Westell is If this does not work, try typing dslrouter into the address bar --nothing else-- and then hit enter. works almost every time.
    The point is to dumb down the Westell 6100 and let it focus on what a modem should (modulator/demodulator)
    As far as port forwarding, once you've bridged the 6100, the only portforwarding will need to be set on the Linksys.
    Let us know if you need any further help.
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