configure terminal ! hostname Router_4 ! interface Loopback0 ip address 150.1.4.4 255.255.255.0 ! interface Serial0/0 no ip address encapsulation frame-relay IETF shutdown frame-relay lmi-type cisco ! interface FastEthernet0/1 ip address 54.1.114.4 255.255.255.0 duplex auto speed auto no shut ! end ! write memory