"Even if you do not configure NAT, the FWSM continues to create translation sessions for all traffic automatically. In this case, the translation is from the real address to the same real address. See the
FWSM : Can same security level command create identity nat?
It's true that FWSM will create a xlate for all connections but it wouldn't show up anymore if xlate-bypass enabled. I mean traffic that pass through FWSM because FWSM NAT on Hardware not Software like ASA.
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...