Open Stack

Hello All,
We want help with Quantum config issue we are facing. We have basically 
multi node deployment of openstack insternally (Essex release). Quantum 
is on separate node and we have OVS plugin deployed. We have entire 
10.43.0.0/16 routable to our openstack setup and we use 10.43.10.X/24 
for all openstack nodes. We want to have this config such that every 
project/user will have dedicated subnet allocated (e.g. one user will 
have 10.43.20.X and other can have 10.43.30.X and so on). While we are 
able to create such a config, we find that when user launches instances, 
he gets  DHCP IPs in his allocated subnet for the project but this 
instance IP is not reachable from outside of quantum node.  We have 
quantum's (virtual) router created/added for 10.43.10.x/24 subnet.
Are we missing anything obvious? Any pointers?


Thanks,
Aniket