---
systemd_link__links:
  monit0: 04:00:00:a6:93:5a

ifupdown2__interfaces:
  monit0:
    addresses:
      - 2a09:6840:204::1:2/64
      - 10.204.1.2/16
    gateways: "{{ ifupdown2__gateways.monit }}"
...