Comment by Charles Benon for Could you make sure you associated both of the network to your router (one for the internal, the other for the external defined as gateway)? For example: http://docs.openstack.org/icehouse/in... neutron router-interface-add demo-router demo-subnet (10.0.0.0/24 for you) neutron router-gateway-set demo-router ext-net (172.24.4.224/28 for you - I would say it is done for you already) If yes, from Horizon (or CLI if you are more comfortable - http://docs.openstack.org/admin-guide... ), you need to associate a floating IP (which will be allocated from your public pool) to your VM interface (using an IP into 10.0.0.0/24) If you think everything is already setup on your environment, could you provide: neutron floatingip-list

neutron router-interface-add router1 private_subnet neutron router-gateway-set drouter1 public_subnet-1 After, that, from Horizon, associate a floating IP to the VM interface