My allocated /48:
2001:470:903f::
Additional subnets should be created like:
2001:470:903f::1:1 2001:470:903f::2:1 2001:470:903f::1b2a:1
Find IPv6 hosts:
$ ping6 -c2 -I vr1 ff02::1 $ ndp -a -n
ndp:IPv6::arp:IPv4
