WRT54GL Only Allows Internet Traffic if IP Set to

Discussion in 'Cisco/Linksys Wireless Routers' started by rocketdude, Jan 20, 2008.

  1. rocketdude

    rocketdude Guest


    I have a brand new WRT54GL V1.1, and it only allows internet traffic if its IP address is set to This problem happens both with the stock Linksys firmware as well as the latest version of the Tomato firmware.

    My setup is:
    1). Speedstream 5100b DSL modem
    2). WRT54GL router

    If I set the WRT54GL's IP address to, for example, it will show that it's connected to the speedstream dsl modem. But I cannot ping any sites on the internet.

    Prior to getting the WRT54GL, I had a dlink 4 port router and it worked fine with an IP address of

    Any suggestions on fixing / diagnosing this problem?


  2. frenchy2k1

    frenchy2k1 LI Guru Member

    What is your PC IP address? If it is not automatic, you may not be able to connect to the WRT54G if you are not on the same subnet (netmask setting).
    Also, what is the speedstream IP address? If I remember correctly, the WRT54G does not allow to have the same subnet on the LAN side and on the WAN side...
  3. Pawel35

    Pawel35 Network Guru Member

    Do not use Use for exmpl if you want to change. In IP address 0 and 255 are reserved for broadcast (send to everybody). Read about IPv4 specification.

    You can use address 192.168.XXX.1 (XXX values from 1 to 254)
  4. frenchy2k1

    frenchy2k1 LI Guru Member

    not true, this only apply for the last byte of the address. You cannot name a computer X.X.X.0 or X.X.X.255, but you can name it X.X.0.X or X.X.255.X.

    Most modern DSL modem (that include the PPPoE on the modem) are by default
  5. Pawel35

    Pawel35 Network Guru Member

    IP Mask

    Everything depends what IP Mask he has. But it is true for
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