I have two routed ASA's that I want to run in active/standby mode. But I'm short on IP addresses on the outside interface. Is the standby ip address absolutely required for failover to function properly, or is that only used if that interface is monitored for failover purposes?
But you will not be monitoring the OUTSIDE so what's going on if the outside fails?
From the standby perspective a monitored interface will hear for hello packets and if the stanby unit doesn't receive a hello packets during x seconds then it will become the active unit. Since you will not monitor the outside (no hello packets) How is the secondary going to take the Active rol if it doesn't know that the outside of the primery went down?
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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...