I had no nat-control on ASA, what I think is the ASA will allow traffic to traverse different interfaces as long as ACL permit it. No nat needed at all. However, when I tried to ping from outside to inside, ping failed and I found these debug information on the ASA:
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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...