Comment 4 for bug 1720532

I've tested with v4.14-rc3 and can confirm that the problem still exists there.

Just a heads up for anyone trying to do the same: I had to put apparmor policy for sbin.dhclient in complaint mode for a connection to work on 17.04/4.14rc3, otherwise I was getting the following deny events:

Oct 3 22:07:04 alx kernel: [ 1024.551892] audit: type=1400 audit(1507061224.451:1096): apparmor="DENIED" operation="create" profile="/usr/lib/NetworkManager/nm-dhcp-helper" pid=8204 comm="nm-dhcp-helper" family="unix" sock_type="stream" protocol=0 requested_mask="create" denied_mask="create"