test heisa

R12:

router ospf 1 router-id 12.12.12.12 area 0

interface Loopback0 passive enable ! interface

GigabitEthernet0/0/0/1 ! interface

GigabitEthernet0/0/0/2 ! interface

GigabitEthernet0/0/0/3 network point-to-point ! ! !

commit