* Basic Failover (ASA 5510, ASAOS 7.2.1, Requires 1 dedicated interface)
interface Ethernet0/0 description Colo Network nameif colo security-level 60 ip address 192.168.99.1 255.255.255.0 standby 192.168.99.2 interface Ethernet0/1 description Office Network nameif office security-level 50 ip address 192.168.77.1 255.255.255.0 standby 192.168.77.2 interface Management0/0 description LAN Failover Interface failover failover lan unit primary failover lan interface fobasic Management0/0 failover key ***** failover interface ip fobasic 192.168.200.1 255.255.255.0 standby 192.168.200.2
* Stateful Failover (ASA 5550, ASAOS 8.0.4, Requires 2 dedicated interfaces)
interface GigabitEthernet0/0 description Colo Network nameif colo security-level 60 ip address 192.168.99.1 255.255.255.0 standby 192.168.99.2 interface GigabitEthernet0/1 description STATE Failover Interface interface Management0/0 description LAN Failover Interface interface GigabitEthernet1/0 description Office Network nameif office security-level 50 ip address 192.168.77.1 255.255.255.0 standby 192.168.77.2 failover failover lan unit primary failover lan interface fobasic Management0/0 failover key ***** failover link fostate GigabitEthernet0/1 failover interface ip fobasic 192.168.200.1 255.255.255.0 standby 192.168.200.2 failover interface ip fostate 192.168.201.1 255.255.255.0 standby 192.168.201.2