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WRT54GS can not connect to ADSL modem

Discussion in 'Cisco/Linksys Wireless Routers' started by Shahrouz, May 18, 2007.

  1. Shahrouz

    Shahrouz LI Guru Member

    I purchased a Linksys WRT54GS router a few weeks ago before I got my new ASDL connection. I want to share ADSL connection between a Laptop and a Desktop. A few days ago I have my ADSL connection up and running, I’m using a PARADYNE 6211 modem.

    First, I’ve got my modem directing connected to my Laptop (Ethernet connection). These were the settings:

    LAN connection of Laptop IP: 192.168.1.2
    Default gateway: 192.168.1.1
    And got IP of two DNS servers

    Modem:
    Connection type PPPoE (have username and password entered)
    Modem (default) IP 192.168.1.1
    Firewall and NAT enabled

    With above setting, I can easily surf the net, no problem.

    After that I connect router between modem and Laptop. I performed the steps according www.linksys.com instructions. Router failed to connect to internet (says it can’t connect to PPPoE server on status page of router web interface)

    I’ve read on the net that since default IP of router is the same as modem i.e. 192.168.1.1, I should change router IP to 192.168.2.1, and therefore changed IP of Laptop’s LAN to 192.168.2.2. Again I can’t get connected to Internet. I tried everything I knew, performed a lot of power cycles, tried to connect, … Nothing happens, …

    BTW I have the DHCP disabled on router.


    Could anybody help me please? :confused:
     
  2. mstombs

    mstombs Network Guru Member

    See if you can put your modem into pppoe full bridge mode - then you need to put username/password into the WRT54GS.
     
  3. crawdaddy

    crawdaddy Network Guru Member

    mstombs has it right on the money. the little black westell modems are the same way, the modem is also a router, so you have to convert it from a router/modem to just a modem. This is done with the hardware reset button on the westell modem, but google to find out how to accomplish the same thing with your modem. Another alternative, albeit a much morse choice IMO is to leave the modem alone, and just set the WAN connection of the WRT to DHCP. It will get a DHCP adress from the modem, and you will be what's called "double NATed", where you are behind 2 different modems and firewalls. It works, but certainly not preferable unless you want to set up something like a weird DMZ thing. Ok, enough of my rambling...
     
  4. Shahrouz

    Shahrouz LI Guru Member

    mstombs & crawdaddy thanks for your replies.

    I tried this ...
    problem solved! :biggrin:

    Here is what I've done:

    with the modem directly connected to Laptop, I deleted the old PPPoE connection and made a new connection in Bridge mode. Connected the router, change the router ip to 192.168.1.2 (modem 192.168.1.1), performed a power cycle. After starting up every thing, router was connected ISP as seen on Router status page :cool:

    However, still I couldn't get connected to net. I tried some other settings, first shutting down modem NAT firewall, after that defining LAN clients in modem setup,...


    to make it short, after the second power cycle and restart, everything works fine. I thank again mstombs & crawdaddy for your great help. I did a lot of "googling" for solve it with no success.

    I'm still a little confused with set up of all those hardware and software firewalls on PC's/router/modem, I should start to study more about firewalls.

    Happy weekend everybody :biggrin:
     

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