Ping usual gateways when testing random subnet
Ping usual gateways when testing random subnet

Signed-off-by: Stéphane Graber <089afc6d81f66f1168a9849e15660feae286e024@ubuntu.com>

lxc/lxd-pkg-ubuntu,lxc/lxd-pkg-ubuntu,lxc/lxd-pkg-ubuntu