1ipv6 forwarding
2!
3interface lo
4 ip address 10.254.254.3/32
5!
6interface r3-eth0
7 ip address 172.16.1.1/24
8 ipv6 address 2001:db8:1::1/64
9!
10interface r3-eth1
11 ipv6 address 2001:db8:2::1/64
12!
13