r2#show run
Building configuration...

Current configuration : 709 bytes
!
version 12.2
no service password-encryption
!
hostname r2
!
!
!
!
!
ip ssh version 1
!
!
interface Loopback2
 ip address 3.3.3.1 255.255.255.0
!
interface FastEthernet0/0
 ip address 192.168.5.1 255.255.255.0
 duplex auto
 speed auto
!
interface FastEthernet1/0
 no ip address
 duplex auto
 speed auto
 shutdown
!
interface Serial2/0
 ip address 192.168.3.2 255.255.255.0
!
interface Serial3/0
 no ip address
 shutdown
!
interface FastEthernet4/0
 no ip address
 shutdown
!
interface FastEthernet5/0
 no ip address
 shutdown
!
router ospf 100
 log-adjacency-changes
 network 192.168.3.0 0.0.0.255 area 0
 network 192.168.5.0 0.0.0.255 area 3
!
ip classless
!
!
!
!
!
line con 0
line vty 0 4
 login
!
!
end