R3

!
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname R3
!
!
memory-size iomem 15
ip subnet-zero
!
!
no ip domain lookup
!
!
key chain 10
 key 1
  key-string pwd
!
!
!
!
interface FastEthernet0/0
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/0
 no ip address
 shutdown
!
interface FastEthernet0/1
 no ip address
 shutdown
 duplex auto
 speed auto
!
interface Serial0/1
 no ip address
 shutdown
!
interface Serial0/2
 ip address 192.168.54.2 255.255.255.0
 ip rip send version 1
 ip rip receive version 2
 ip rip authentication mode md5
 ip rip authentication key-chain 10
 clockrate 56000
!
interface Serial0/3
 ip address 192.168.56.2 255.255.255.0
 ip rip send version 2
 ip rip receive version 1
 ip rip authentication mode md5
 ip rip authentication key-chain 10
 clockrate 56000
!
router rip
 version 2
 network 192.168.54.0
 network 192.168.56.0
!
no ip http server
ip classless
!
!
!
line con 0
 exec-timeout 0 0
 logging synchronous
line aux 0
line vty 0 4
 login
!
!
!
end