I've been trying to get HTTP ddns to function on cisco 871's with 12.4(9)T1 and 12.4(15)T1 advipservices.
Debug shows the update request (to zoneedit) sent with good syntax, and I've temp. turned off ACLs firewall and IPS to avoid any issues. The same update request URL sent via a browser updates fine, but from the IOS - no go.
The pertinent debug output follows:
HTTPDNSUPD: Call returned Response time out for update...(etc)
Is a response timeout indicative of any particular config error? Any suggestions for tweaking? I've been working on this for two days and it's making me crazy... There's a surprising lack of documentation out there - maybe it just works for everybody else...