R3#sh run hostname R3 ! no ip domain lookup ip cef ipv6 unicast-routing ipv6 cef ipv6 multicast rpf use-bgp ! ! interface Loopback0 ip address 3.3.3.3 255.255.255.255 ! interface Loopback103 ip address 172.16.103.1 255.255.255.0 ! interface Ethernet0/0 no ip address shutdown ! interface Ethernet0/1 no ip address shutdown ! interface Ethernet0/2 no ip address shutdown ! interface Ethernet0/3 no ip address shutdown ! interface Serial1/0 ip address 172.16.13.3 255.255.255.0 ipv6 address 2005:DEAD:BEEF:13::3/80 no shutdown ! interface Serial1/1 ip address 172.16.43.3 255.255.255.0 ipv6 address 2005:DEAD:BEEF:43::3/80 no shutdown ! interface Serial1/2 no ip address shutdown serial restart-delay 0 ! interface Serial1/3 no ip address shutdown serial restart-delay 0 ! ! line con 0 exec-timeout 0 0 privilege level 15 logging synchronous line aux 0 line vty 0 4 login transport input all ! ! end