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How to setup DDNS to refresh periodically

Discussion in 'DD-WRT Firmware' started by rybshik, Jul 24, 2007.

  1. rybshik

    rybshik LI Guru Member

    I am considering installing DD-WRT on my WRT54G V5 for only one
    reason - I am not happy with the way DDNS service is supported in the original Linksys firmware. Linksys firmware does support DDNS with
    DynDNS.org, however, it appears that Linksys firmware updates the IP
    recorded at DynDNS.org only on startup/reboot. Correct me if I am wrong.

    What I want is that the IP record at DynDNS.org is updated by the
    router PERIODICALLy, say, every 10min.

    Does DD-WRT firmware for WRT54G V5 have such feature? Is it easy to
    handle? I have a very linited Linux experience.

    I would appreciate a link to a tutorial on setting up/using DDNS.
  2. ifican

    ifican Network Guru Member

    I believe this is possible but you will most likely have to use a script, on a side note this may all be a moot point before long. I know several service providers that are now blocking all inbound http requests, causing user to order business service if they want to run anykind of internal http server. Several providers in my area cox and att have already implemented this, i am not sure if we are a test market but i expect it to go nationwide before long if it has not already.
  3. rybshik

    rybshik LI Guru Member

    So periodical refreshing is not included by default in DDNS service of DD-WRT?

    What about original Linksys firmware? Is my suggestion correct and it updates the IP recorded at DynDNS.org only on startup/reboot?
  4. ifican

    ifican Network Guru Member

    I wish i could answer those directly, the fact is at the moment i do not know. I will look at dd-wrt and tomato when i get home, i dont currently have anything running stock firmware. Though i believe someone will most likely answer the above questions before i have a chance / need to check.
  5. mstombs

    mstombs Network Guru Member

    Hyperwrt, by default, updates on startup/reboot [abusively if WAN IP hasn't changed] and on WAN IP change (dhcp at least), but it has a feature in that it doesn't do the 28 day update. It seems that Tomato has same problem, probably traceable to the Linksys code. This can be fixed by a cron job or "daemon mode" or use dyndns free static IP address for cable connections that don't change very often.

    How well does dd-wrt micro do?
  6. rybshik

    rybshik LI Guru Member

    Would you please comment a little more on that?
  7. mstombs

    mstombs Network Guru Member

    Just passing on a tip given to me elsewhere...



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