Example usage:

	lxc.net[i].type=ipvlan
	lxc.net[i].ipvlan.mode=[l3|l3s|l2] (defaults to l3)
	lxc.net[i].ipvlan.flags=[bridge|private|vepa] (defaults to bridge)
	lxc.net[i].link=eth0
	lxc.net[i].flags=up
Signed-off-by: tomponline <thomas.parrott@canonical.com>