Comment 4 for bug 1243726

It seems to be failing on allocating an IPaddress out of the floatingip pool. By default the floatingip pool is only has 16 ip addresses free. I wonder since we are running the tests in parallel if we are sometimes actually running out of ip_addresses here. Just to confirm I've got a test here running https://review.openstack.org/#/c/53474/ which bumps it from a /28 to /24