conf t
!
hostname R3
!
int lo 10
 description /// OSPF ///
 ipv4 add 33.33.33.33/32
!
int lo 20
 description /// BGP ///
 ipv4 add 3.3.3.3/32
!
int gi0/0/0/1
 ipv4 add 192.168.23.3/24
 no sh
!
int gi0/0/0/2
 ipv4 add 192.168.13.3/24
 no sh
!
router ospf 1
 area 0
  int lo 10
   passive
  !
  int gi0/0/0/1
   net point-to-point
  !
 !
!
router bgp 1
 bgp router-id 192.168.13.3
 add ipv4 uni
  net 3.3.3.3/32
 !
 neighbor 192.168.13.1
  remote-as 1
  add ipv4 uni
  !
 !
!