@ R1 en conf t ! hostname R1 ! no ip domain-lookup ! enable secret cisco ! line con 0 logg syn exec-timeout 0 0 ! line vty 0 4 password cisco login ! int lo 172 ip add 172.16.1.1 255.255.255.0 ! int fa0/0 ip add 13.13.10.1 255.255.255.0 no sh ! int s1/0 ip add 13.13.12.1 255.255.255.0 no sh @ R2 en conf t ! hostname R2 ! no ip domain-lookup ! enable secret cisco ! line con 0 logg syn exec-timeout 0 0 ! line vty 0 4 password cisco login ! int fa0/0 ip add 13.13.20.1 255.255.255.0 no sh ! int s1/0 ip add 13.13.23.2 255.255.255.0 no sh ! int s1/1 ip add 13.13.12.2 255.255.255.0 no sh ! @ R3 en conf t ! hostname R3 ! no ip domain-lookup ! enable secret cisco ! line con 0 logg syn exec-timeout 0 0 ! line vty 0 4 password cisco login ! int lo 172 ip add 172.16.3.1 255.255.255.0 ! int fa0/0 ip add 13.13.30.1 255.255.255.0 no sh ! int s1/1 ip add 13.13.23.3 255.255.255.0 no sh !