GRE encapsulation is a Layer 3 technique that allows datagrams to be encapsulated into IP packets at the WCCP-enabled router and then redirected to a Content Engine. At this intermediate destination, the datagrams are decapsulated and then routed to an origin server to satisfy the request in case of a cache miss. In doing so, the trip to the server appears to the inner datagrams as one hop. Usually, the redirected traffic using GRE encapsulation is referred to as GRE tunnel traffic. All redirection is handled by router software. Mask assignment is not recommended.
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...