---
systemd_link__links:
  monit0: 02:00:00:a8:6b:51

ifupdown2__interfaces:
  monit0:
    addresses:
      - 2a09:6840:204::1:1/64
      - 10.204.1.1/16
    gateways: "{{ ifupdown2__gateways.monit }}"
...