Hi, I am a bit confused about the networking of nova in flatdhp mode. Can somebody share nova.conf and the output of ifconfig from controller and compute nodes? Also the /etc/network/interface file if possible. I can't access/ssh my instances using floating ips but I can acess them using private ips from controller host but not from compute nodes. my setup Mode: Flatdhp node1: eth0: 192.168.122.24/24 , eth1: address 192.168.3.1/24 node2: eth0: 192.168.122.25/24, eth1: 192.168.3.2/24 node1 ifconfig: http://pastebin.com/TZNWLFN8 node2 ifconfig: http://pastebin.com/yu0Xc7gD nova.conf: http://pastebin.com/Bgex6xm7 I am using this guide to setup http://docs.openstack.org/essex/openstack-compute/starter/os-compute-starterguide-trunk.pdf Thanks in adv! Paras.