1) Not sure what you mean by that. Can you post a link stating that?
2) At any point in time, one would be active and one would be standby in a given CAS or CAM pair. To make the other one active, you can just reboot the active one, and the other one will take over as active - This is assuming HA is setup right!
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...