1- When clients try connecting to tunnel are they getting prompted with tunnel authentication or not.
If you are not getting the tunnel authentication window it is possible the vpn client is configured for Ipsec over TCP instead of IPsec over UDP which is default settings , could you check that under vpn client transport tab.
It seems the client is hitting DefaultRAGroup but we have configured the group as testgroup. Please check the group name in the connection entries on the client. Also please let us know if there are any site to site or dynamic to static tunnels already configured on the firewall. If this is the case bind the dynamic map dyn1 with high priority to the static map. eg crypto map mymap 65535 ipsec-isakmp dynamic dyn1
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...