Very simple question. I used this guide to install folsom: http://docs.openstack.org/folsom/basic-install/content/basic-install_intro.html (http://docs.openstack.org/folsom/basi...) . I am not using namespaces. I am using the gre tenant_network_type. The interface that dnsmasq hands out ip addresses on, and the gateway interface that the vm uses to leave the subnet, are in completely different vlans than any of the vm interfaces on the ovs on the compute node. I made an entry here: http://visualne.wordpress.com/2013/02/09/quantum-gre-tunnels-ovs/ (http://visualne.wordpress.com/2013/02...) . I guess my question is, do the gateway and dnsmasq interface need to be in the same vlan as the vm interface?