S 1.1.3.0/24 [1/0] via 1.1.23.3, GigabitEthernet 0/3
C 1.1.12.0/24 is directly connected, GigabitEthernet 0/1
C 1.1.12.2/32 is local host.
C 1.1.23.0/24 is directly connected, GigabitEthernet 0/3
C 1.1.23.2/32 is local host.
R3# show ip route
Codes: C - Connected, L - Local, S - Static
R - RIP, O - OSPF, B - BGP, I - IS-IS
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
SU - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
IA - Inter area, * - candidate default
Gateway of last resort is no set
S 1.1.1.0/24 [1/0] via 1.1.13.1, GigabitEthernet 0/2
S 1.1.2.0/24 [1/0] via 1.1.23.2, GigabitEthernet 0/2
C 1.1.3.0/24 is directly connected, GigabitEthernet 0/0
C 1.1.3.1/32 is local host.
C 1.1.13.0/24 is directly connected, GigabitEthernet 0/1
C 1.1.13.3/32 is local host.
C 1.1.23.0/24 is directly connected, GigabitEthernet 0/2
C 1.1.23.3/32 is local host.
R1# configure terminal
R1(config)#interface gigabitEthernet 0/0
R1(config-if-GigabitEthernet 0/0)# ipv6 address 1111:1111::1/64
R1(config-if-GigabitEthernet 0/0)# exit
R1(config)#interface gigabitEthernet 0/1
R1(config-if-GigabitEthernet 0/1)# ipv6 address 1111:1212::1/64