conf t
!
hostname CustA-1
!
int lo 0
 ipv4 add 7.7.7.7/32
!
int gi0/0/0/1
 ipv4 add 192.168.1.2/24
 no sh
!
router ospf 1
 router-id 7.7.7.7
 area 0
  int lo 0
   passive
  !
  int gi0/0/0/1
   net point-to-point
  !
 !
!