configure terminal ! hostname Router_3 ! interface FastEthernet0/0 ip address 157.1.168.3 255.255.255.0 no shutdown ! interface FastEthernet0/1 ip address 157.1.38.3 255.255.255.0 no shutdown ! interface loopback0 ip address 170.1.3.3 255.255.255.0 ! end ! write memory