Comment 0 for bug 1786726

In an IPv6 static setup with NetworkManager, such as the following:

    ens8:
      accept-ra: false
      addresses: ['23:b0:87:58:65:f7:fb:8b/45', '63:94:73:e1:46:15:79:58/50']
      nameservers:
        addresses: ['f2:9d:bc:04:7b:87:ec:28']
        search: [lab, home]
      renderer: NetworkManager

we see the following error in syslog:

NetworkManager[19666]: <warn> [1532665946.1502] keyfile: error loading connection from file /run/NetworkManager/system-connections/net
plan-ens8: invalid connection: ipv4.dns-search: this property is not allowed for 'method=link-local'

netplan renders an ipv4 dns search property, even though there is no configured ipv4 address. NetworkManager doesn't like this and it prevents the connection from being configured.