R1#sh run | b interface Tun interface Tunnel0 no ip address no ip redirects ipv6 address 2002:B428:742::1/64 tunnel source Ethernet0/0 tunnel mode ipv6ip 6to4 ! ! ipv6 route 2002::/16 Tunnel0 ipv6 route 2005:17:17::7/128 2002:B428:701::7 R7#sh run | b interface Tun interface Tunnel0 no ip address no ip redirects ipv6 address 2002:B428:701::7/64 tunnel source FastEthernet0/1 tunnel mode ipv6ip 6to4 ! ! ipv6 route 2002::/16 Tunnel0 ipv6 route 2005:17:17::1/128 2002:B428:742::1