IPSEC over GRE not working with NAT, Tunnel Protection
I have been trying to get this to work for some time. I cannot get IPSEC to work over GRE, with a NAT device in the middle (router to router). I am using Tunnel protection. I am able to get this to work without a NAT device. I am also able to get this to work with "tunnel mode ipsec ipv4" command. I cannot use this command in production.
When I have this set up, it appears that IPSEC is trying to negotiate with gig int rather than the tunnel interface. What am I missing?
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...