configure terminal
!
hostname Router_4
!
interface Loopback0
 ip address 140.1.4.4 255.255.255.0
!
interface FastEthernet0/0
 ip address 57.1.94.4 255.255.255.0
 duplex auto
 speed auto
 no shutdown
!
interface Serial0/0
 ip address 147.1.14.4 255.255.255.0
 encapsulation frame-relay
 no shutdown
!
interface FastEthernet0/1
 ip address 147.1.44.4 255.255.255.0
 duplex auto
 speed auto
 no shutdown
!
end
!
write memory