Hi Sean, > We have a *lot* of configuration knobs in DevStack for Neutron. I am not > a smart man, so I think we may need to wrap our arms around this and > simplify. I agree with you. I want to fix the confused configure too. PHYSICAL_NETWORK is a option in order to setup L2 public network only without L3 and private network. PUBLIC_PHYSICAL_NETWORK is a option in order to setup public L2 network with L3 and private network. You can look at simple document in neutron-legacy[1]. According with the comment, therefore, you should fix your local.conf as the following. PHYSICAL_NETWORK=default -> PUBLIC_PHYSICAL_NETWORK=public and add OVS_BRIDGE_MAPPINGS=public:br-ex [1]: https://github.com/openstack-dev/devstack/blob/master/lib/neutron-legacy#L171-190 --------------------------------------------- Hirofumi Ichihara -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20150529/c8b452e5/attachment.html>