I have a GRE tunnel between an 3660 and a 3725. Under this tunnel there are many routers from SP, that we not even can see.
The problem is that at Netflow it shows me only a high GRE traffic, giving me only details if using Nbar but still like that loosing all of informations available at Netflow reports (Conversations, source, etc).
So, does anybody knows what should be configured at routers to enable netflow detailed informations of GRE tunnel?
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...