I am purchasing 2 new ASA 5520 and wish for the to act as a failover pair in Active/Stanby mode. How many physical interfaces do I need in order to allow this to happen. Please note that the failover should be stateful!
I don't think that I can purchase a Failover licence for the second firewall, I think it must be the same as the active firewall, is this correct.
Help well rated!