Open Stack

Hello,
I installed keystone (2011-3 version) and integrated with nova and glance openstack. (diablo).
I am able to upload images and able to launch VMs. I am also able to ping and ssh to private ip address of the launched VM.
However, I am trying to allocate a public/floating ip address.
euca-allocate-address
I am gettign Quota exceeded error.
However, floating ips are not allocated yet.
I have all the floating ips still available.
sudo nova-manage floating create --ip_range=16.78.118.224/27
 
Without keystone, this used to work.
 
Any lead is appreciated.
Thanks,
-VJ
 
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