Ipv6

[majst01]

part of #41

TODO:

• firewall: if both sides are ipv6 no not NAT

[majst01]

We need to pass the bits for the lo address because otherwise it inherits from the already configured ip:

metal@d71b909b3b9430da:/etc/systemd/network$ more 00-lo.network 
# networkid: underlay-vagrant-lab
[Match]
Name=lo

[Address]
Address=127.0.0.1/8

[Address]
Address=10.1.0.1
metal@d71b909b3b9430da:/etc/systemd/network$ ip ads 
Object "ads" is unknown, try "ip help".
metal@d71b909b3b9430da:/etc/systemd/network$ ip ad s
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet 10.1.0.1/8 brd 10.255.255.255 scope global lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever

[mwindower]

lgtm