[sudo-sys] Do we have an ipv6 prefix?

[Yardena Cohen]

On Sat, Oct 27, 2018 at 9:46 PM Marc Juul <juul at labitat.dk> wrote:
> Hurricane Electric offers free IPv6 over IPv4 tunnels.

Yep!

$ host -t aaaa room.sudoroom.org
room.sudoroom.org has IPv6 address 2001:470:66:147::2
$ ping -6 room.sudoroom.org
PING room.sudoroom.org(tunnel505343-pt.tunnel.tserv29.fmt1.ipv6.he.net
(2001:470:66:147::2)) 56 data bytes
64 bytes from tunnel505343-pt.tunnel.tserv29.fmt1.ipv6.he.net
(2001:470:66:147::2): icmp_seq=1 ttl=59 time=24.0 ms
64 bytes from tunnel505343-pt.tunnel.tserv29.fmt1.ipv6.he.net
(2001:470:66:147::2): icmp_seq=2 ttl=59 time=25.6 ms

We have a /48 for local use. So far I've assigned two subnets:

2001:470:488f:c0de::/64 for ethernet hosts, equivalent to our 192.168.42.1/16
2001:470:488f:f00d::/64 for wifi, equivalent to our 100.64.64.1/22

I think I got routing, ip6tables, radvd and dns working but I'm still
a total ipv6 newb so please test and check my work. Thanks.