The Cisco PIX FAILOVER hardware will reboot on its' own every 1 hour, whe the PRIMARY unit isn't available. This is the default behaviour of a Cisco PIX with SECONDARY license.
Please note that Cisco PIX hardware (come with full license) is twice the price of a Cisco PIX hardware (come with only failover license). A lot of customers out there will buy the Cisco PIX hardware (come with only failover license) instead thinking this is the cheapest way out but Cisco is smarter.
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...