Comment 7 for bug 997978

Sorry, I didn't see your update on the 12th.

The configuration file as you showed it may also work, but it should be simpler
to use the one I posted.

Can you do
 sudo lxc-start -n lxc1 -l DEBUG -o debugout

and attach the file debugout here?

Do you have cgroups mounted? (what does 'grep cgroup /proc/self/mounts' show?)

Does the dhcp server for that network answer all requests, or only for
certain mac addresses? (Lack of dhcp response shouldn't prevent the
container from starting anyway, so shouldn't explain the problem)