This symptom is observed on a router on which Web Cache
Communication Protocol (WCCP) is enabled and Cisco Express Forwarding (CEF)
switching is disabled. If the caches are Cisco caches, they will be running
software prior to ACNS 4.2.5.
solution: Ensure that CEF switching is enabled on the router. If this is not possible, the impact of the problem on the cache will be minimized if the authentication bypass function is disabled.also try upgrading IOS to 12.1(18.01)E which may solve the issue.
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...