conf t
!
hostname R1
!
int lo 0
 ipv4 add 1.1.1.1/32
!
int gi0/0/0/0
 ipv4 add 192.168.12.1/24
 no sh
!
router ospf 1
 area 0
  int lo 0
   passive 
  !
  int gi0/0/0/0
   net point-to-point
  !
 !
!
router bgp 1
 bgp unsafe-ebgp-policy
 !
 add ipv4 uni
 !
 neighbor 3.3.3.3
  remote-as 3
  update-source lo0
  ebgp-multihop 255
  add ipv4 uni
  !
 !
!