9.30 Automatic 6to4 Tunnels
Sub-task 2 needs us to create loopback interfaces with subnet number 0, however it is not configured like that in SG. The correct loopback interface's IPv6 address would be:
2002:9601:0303:0::/64 or to be precise:2002:9601:0303::/64
However in SG, the loopback interface is configured with subnet 1, and instead the tunnel interface is configured with subnet 0.