%CRYPTO-4-RECVD_PKT_NOT_IPSEC: Rec'd packet not an IPSEC packet.
I went through the configuration and think all required components are in there.
I would say that we should check routing.
Error message means that packet recieved as per local policy should have been a IPSEC encrypted packet however it was a plain text packet.
* Please check if tunnel is up and share show crypto ipsec sa from either end.
* please check if the packets leaving other end are taking right exit interface and if yes are they encrypted or not. you can check this with the help of ACL (disabling CEF if this is not into production and there is no MPLS link involved).
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...