ffdo-ansible/roles/mesh-interfaces/templates/mesh-address.cfg.j2

iface lo inet6 static
    address {{mesh_ipv6_address}}
    pre-up ip -6 rule add from {{ipv6_network}} table 42
    pre-up ip -6 rule add to {{ipv6_network}} table 42
    post-down ip -6 rule del from {{ipv6_network}} table 42
    post-down ip -6 rule del to {{ipv6_network}} table 42