hostname dev2a
!
version 16.12
!
interface GigabitEthernet0/0
 description <dev1 Gi0/1>
 ip address 10.12.0.21 255.255.255.0
 standby 101 ip 10.12.0.101
 standby 101 priority 105
 standby 101 preempt
 standby 101 track GigabitEthernet0/1
 standby 102 ip 10.12.0.102
 standby 102 preempt
 standby 102 track GigabitEthernet0/1
 no shutdown
!
interface GigabitEthernet0/1
 description <dev3 Gi0/0>
 ip address 10.23.0.21 255.255.255.0
 standby 103 ip 10.23.0.2
 standby 103 priority 105
 standby 103 preempt
 standby 103 track GigabitEthernet0/0
 no shutdown
!
ip route 0.0.0.0 0.0.0.0 10.23.0.3
!
end
