Unfortunately CatOS does not have a way to configure server groups which is what would be necessary to customize separate destinations for authentication versus authorization.
Furthermore in the dot1x guide there is no guest vlan nor auth fail features, only vlan assignment via Radius. Could use this to assign particular users to a restricted vlan. I would definitely read the section on 802.1x VLAN assignment Using a RADIUS server, if you are interested (in in the dot1x link above).
Looks like guest vlan was introduced around 12.1(14)EA1,
Looks like auth fail was introduced around 12.2(25)SED, see:
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...