lab:
  id: 0
  ipv4: 192.168.10.0/24
  ipv6: 2001:678:d78:200::/60
  srv6: 2001:678:d78:20f::/64
  nameserver: 
    addresses: [ 192.168.10.4, 2001:678:d78:201::ffff ]
  hypervisor: hvn0.lab.ipng.ch