configure terminal
!
hostname Router_1
!
interface Loopback0
 ip address 140.1.1.1 255.255.255.0
!
interface FastEthernet0/1
 ip address 147.1.11.1 255.255.255.0
 duplex auto
 speed auto
 no shutdown
!
interface Serial0/0
 no ip address
 encapsulation frame-relay
 no shutdown 
!
end
!
write memory