I find when troubleshooting VPN problems I have a difficult time trying to understand what the event log is telling me in some cases. I have seen allot of error codes that I have know idea what they mean and there is also the famous "tunnel to peer closed, reason: None" . I would like to get "smarter" in understanding this event log and the various events and error codes but I have not found a "how to interpret VPN error codes guide" Is there any reference at all out there ??? Thanks for responding.
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...