DDNS auto refresh?

Discussion in 'Tomato Firmware' started by Pete7874, Mar 9, 2012.

  1. Pete7874

    Pete7874 Network Guru Member

    I am using Shibby version of Tomato on ASUS RT-N16, but I was having the same problem when running original Tomato, so it's probably not Shibby-specific...

    Under Basic/DDNS settings there is a field called "Auto refresh every... XX days". When exactly does this function trigger? If I have several DDNS services configured in Tomato (for example no-ip.com and dyndns.com), does it mean that every XX days the router will automatically send info about my current external IP to these services even if my external IP address has not changed during this period?

    The reason I ask is that when I go into Basic/DDNS settings, the router shows "Update successful" with a relatively recent date (see image below); however, I still get automated email notifications from these DDNS services telling me that I have not updated my DDNS info in nearly 30 days and that my account will be deleted if I don't perform an update. At that point, I have to manually log into these DDNS services to keep it alive. Is there any way for this to truly happen automatically, using non-paid DDNS service?


  2. Planiwa

    Planiwa Network Guru Member

    A reasonable assumption is that it means that this hostname is still to be mapped to this IP address, especially if there has been no change.

    (This is necessary for a free service, since otherwise the provider would happily maintain the mapping so long as they get paid.)

    NO-IP regards an IP change as (the only automatic) indication of activity. It will expire inactive hosts.

    NO-IP does not regard non-changing updates as expiry-deferring.

    Tomato runs a process (ddns-update) whenever the IP address changes to inform the DDNS provider(s).

    It runs that same process at the "auto-refresh" cycle (you can see it in /var/spool/cron/crontabs/root ), even if there was no change. ("force").

    I posted information about a workaround (suggested by nobugme) earlier today:

  3. Pete7874

    Pete7874 Network Guru Member

    Thank you!
  4. Badders44

    Badders44 LI Guru Member

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