! hostname R4 ! enable password cisco ! interface Loopback0 ip address 172.22.84.1 255.255.255.0 ! interface FastEthernet0/0 ip address 172.22.0.4 255.255.255.192 no shut ! interface FastEthernet0/1 ip address 172.22.34.4 255.255.255.0 no shut ! interface Serial0/0 ip address 172.22.45.4 255.255.255.0 clockrate 128000 no shut ! interface Serial0/1 clockrate 128000 ip address 172.22.124.4 255.255.255.224 no shut ! ! line con 0 exec-timeout 0 0 password cisco login line aux 0 line vty 0 4 password cisco login line vty 5 15 password cisco login ! end wr