---
systemd_link__links:
  adm0: 02:00:00:6c:4b:89
  int0: 02:00:00:9f:d9:f9

ifupdown2__interfaces:
  adm0:
    addresses:
      - 2a09:6840:128::10:3/64
      - 10.128.10.3/16
  int0:
    addresses:
      - 2a09:6840:206::1:1/64
      - 10.206.1.1/16
    gateways: "{{ ifupdown2__gateways.int }}"
...