I have a GRE tunnel between two ISR's. The tunnel works perfectly... until I apply a Zone based firewall using CCP Ver 2.3. Below is the firewall being applied to Router 1. As soon as it is applied I can no longer use the tunnel from Router 2. What steps might I want to take inorder to figure this out?
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...