---
systemd_link__links:
  ups0: 04:00:00:6d:97:83
  back0: 04:00:00:46:ba:f9
  monit0: 04:00:00:72:0b:2d
  wifi0: 04:00:00:ee:42:0f
  int0: 04:00:00:21:fd:d0
  sw0: 04:00:00:2e:5b:16
  bmc0: 04:00:00:bb:5a:a6
  pve0: 04:00:00:0b:2b:82
  isp0: 04:00:00:f4:4c:5d
  ext0: 04:00:00:1d:0e:83
  vpn0: 04:00:00:02:ba:dd

ifupdown2__interfaces:
  back0:
    addresses:
      - 2a09:6840:203::1:4/64
      - 10.203.1.4/16
      - 45.66.111.211/32 # secondary
  ups0:
    ipv6_addrgen: false
  monit0:
    ipv6_addrgen: false
  wifi0:
    ipv6_addrgen: false
  int0:
    ipv6_addrgen: false
  sw0:
    ipv6_addrgen: false
  bmc0:
    ipv6_addrgen: false
  pve0:
    ipv6_addrgen: false
  isp0:
    ipv6_addrgen: false
  ext0:
    ipv6_addrgen: false
  vpn0:
    addresses:
      - 2a09:6840:213::1:2
      - 10.213.1.2

bird__router_id: 10.203.1.4

bird__bgp_addr:
  back:
    - 2a09:6840:203::1:4
    - 10.203.1.4

bird__pref_src_addr:
  - 2a09:6840:203::1:4
  - 45.66.111.211
...