Master:
failover
failover lan unit primary
failover lan interface Failover GigabitEthernet0/5
failover key secret
failover replication http
failover link Failover GigabitEthernet0/5
failover interface ip Failover 10.10.10.1 255.255.255.252 standby 10.10.10.2
int GigabitEthernet0/5
no shut
Slave:
failover
failover lan unit secondary
failover lan interface Failover GigabitEthernet0/5
failover key secret
failover replication http
failover link Failover GigabitEthernet0/5
failover interface ip Failover 10.10.10.1 255.255.255.252 standby 10.10.10.2
int GigabitEthernet0/5
no shut