WRT54G: Change uplink port to one of the numbered ports?

Discussion in 'Cisco/Linksys Wireless Routers' started by opus2008, Jul 29, 2005.

  1. opus2008

    opus2008 Network Guru Member

    I bought my dad a WRT54G for Christmas, but lightning hit nearby yesterday and blew out his cable modem, and (best I can tell) the uplink port on the WRT54G. :-( He can access the WRT54G wirelessly just fine, but it doesn't get 'link" when he plugs the ethernet cable into the uplink port from the cable modem.

    So, my question: is it possible, with any firmware out there, to change it so one of the numbered ports serves as the uplink port? Those ports give link just fine.

    (I think I remember reading that it was possible to remap ports in this manner, but a quick search hasn't turned up anything.)

  2. RTSAnime

    RTSAnime Network Guru Member

    i think you can do this with DD-WRT. You have to mess around with the VLANS
  3. jagboy

    jagboy Network Guru Member

    if you flash with 3rd party firmware try the command "mtd erase nvram"
    this will reset any value that might be affeting the router to out of the box defults.
  4. opus2008

    opus2008 Network Guru Member

    OK, looks like the VLANs thing might do the trick. Fortunately, I have DD-WRT up and running here at home, so I could look there before talking to my dad about it.

    So, is it as simple as going to the VLAN configuration screen and moving port "W" from VLAN 1 to VLAN 0, then moving port 1 from VLAN 0 to VLAN 1? It seems like I should just be able to plug the cable modem into port 1 then, and all should be well. (Port W would then be a useless LAN port, not an uplink port, it seems.)

    Thanks for the tips, guys!
  5. opus2008

    opus2008 Network Guru Member

    Quick follow-up: It was just as simple as switching the VLAN assignments to ports W and 1 in the router setup. My dad has now has his internet connection coming through port 1, and his machine is connected to port 2. I ran some port scans to make sure it was set up correctly, and it looks great.

    Thanks again for the help! :D
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