configure terminal
!
hostname Router_3
!
interface FastEthernet0/0
 ip address 189.1.3.3 255.255.255.0
 no shutdown
 !
interface FastEthernet0/1
ip address 55.1.93.3 255.255.255.0
 no shutdown
!
interface Serial0/0
 encapsulation frame-relay
 ip address 189.1.135.3 255.255.255.0
 no shutdown
!
interface loopback0
 ip address 140.1.3.3 255.255.255.0
!
end
!
write memory