I was trying to debug why an IPSEC tunnel from a 3700 router to a 1841 router would not come up.
I found an interface on the 3700 router with the SAME DESTINATION IP address of the original tunnel BUT in an administratively shutdown state so - administratively down down.
When I deleted the config for this interface the tunnel came back up.
Is this a documented "feature" with an
ID that I can give to my management ?
I should add that I am trying to find this with Cisco Bug tracker but not having luck at the moment.