I have an 861 running the latest universalk9-mz.152-3.T software. Its a dual ethernet router with a PPPoE dialer to an ISP. A EzVPN is setup on the dialer also. The EzVPN terminates to a ASA 5510.
The tunnel builds as aes256 and everything works fine for hours. Then I start to loose connectivity across the tunnel. Pings will traverse the tunnel fine and some UDP works, but all TCP packets like ssh start connection (get the syn) but that is it... they just hang there until timeout. If I clear the tunnel, I can't reestablish it (fails at phase2). If I reboot the router (without making any config changes) however, all goes back to being fine.
I haven't been able to see anything in the debug that looks glaringly wrong when its failing.
We have configured the outside and inside Interface with official ipv6 adresses, set a default route on outside Interface to our router, we also have definied a rule , which also gets hits, to permit tcp from inside Interface to any6.
In Syslog I also se...