These are failing on my machine with cloud.log lines like
2014-08-07 14:34:09,509 Add dev eth2 table Table_eth2 10.0.2.0/24
2014-08-07 14:34:09,511 Address 10.0.2.106/24 on device eth2 not configured
2014-08-07 14:34:10,513 Device eth2 cannot be configured - device was not found
I think it's correct that they are failing -- this is work in progress.