2012-07-20T10:00:00-00:00 Neutron L3 Router http://docs.openstack.org/ext/neutron/router/api/v1.0 router Router abstraction for basic L3 forwarding between L2 Neutron networks and access to external networks via a NAT gateway. 2012-09-07T10:00:00-00:00 Provider Network http://docs.openstack.org/ext/provider/api/v1.0 provider Expose mapping of virtual networks to physical networks