I have gre tenant networks and one single flat network that I use as my external network. I created a router and connected to the tenant networks and to the flat external network and every thing is working fine. Have you attached a router to your flat network and to your gre network? ________________________________________ From: Randy [amps at djlab.com] Sent: Tuesday, June 10, 2014 5:47 PM To: openstack at lists.openstack.org Subject: [Openstack] Neutron GRE + Flat question I've got the 3-node Icehouse/Juno setup using Neutron (ml2/GRE) networking on Xenserver, like this: http://docs.openstack.org/trunk/install-guide/install/apt/content/basics-networking-neutron.html Everything works fine with the floating IPs and all...but now I want to introduce a flat network (with external router) that doesn't require NAT or floating IPs. Like this: http://docs.openstack.org/havana/install-guide/install/apt/content/section_use-cases-mixed.html Using the flat network, DHCP works but there's no metadata or connectivity in or out of the VMs. ACTUAL QUESTION: If we introduce the flat network to the network node on a dedicated interface, will it tunnel the flat network over GRE to each compute node? Or do we need to physically connect and bridge map each flat network on every compute node separately? -- ~Randy _______________________________________________ Mailing list: http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack Post to : openstack at lists.openstack.org Unsubscribe : http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack http://www.csscorp.com/common/email-disclaimer.php