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DDNS when WRT54GS used as access point (but not gateway)

Discussion in 'Sveasoft Firmware' started by guinn, Apr 12, 2005.

  1. guinn

    guinn Network Guru Member

    Hi there,

    First post here, so go easy on me ;)

    I've been using a Linksys WRT54GS for 6 months or so without any problems. For no particular reason I put a Cisco Pix 501 as my gateway and am now using the WRT54GS purely as an access point, and the Pix for DHCP and as a gateway. All the machines connect fine and browse happily etc - only problem seems to be the DDNS doesn't update anymore because the WRT54GS doesn't think it has an Internet connection.

    I've told the WRT54GS ( that it's default gateway is and the routing table seems to reflect this:

    Destination LAN Subnet Mask Gateway

    Any boxes I should be ticking, or is it fairly normal that it doesn't work like this - some of the downloadable apps for Dyndns allowed you to check your external IP if you were behind a firewall, I'm guessing this is what the Linksys now needs to do, rather than using it's own (now non-existant) WAN IP.

    Using firmware Satori-4.0 v2.07.1.7sv

    Thanks in advance.
  2. guinn

    guinn Network Guru Member

    Upgraded to Alchemy, same problem. Any ideas?
  3. oopsibrokeit

    oopsibrokeit Network Guru Member

    not a very very helpful suggestion, but a practical thought...

    sell the wrt and get a wap54, something thats designed to do the job you want it to do?

    i know thats what i'd do!

  4. Guyfromhe

    Guyfromhe Network Guru Member

    you've given your router an internal IP, it has no idea what your live ip is and theres no point updating DDNS with a non-routable ip...
    if you need to have something pointing to a non-routable ip just give it a static and forget about it.
  5. Guyfromhe

    Guyfromhe Network Guru Member

    oops just re-read your post, I don't believe any of the firmwares do that, as it would require connecting to an external source that can give the router it's ip because the router has no idea what it's internet ip is...
    I doubt you'll find anything like that for the wrt, it's intended to run direct connected to the internet.

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