Hi Now my network seting in nova.conf network_manager=nova.network.manager.FlatDHCPManager public_interface=eth0 flat_interface=eth1 flat_network_bridge=br100 how to setting eth1, as I know the eth1 no need setting IP address. some document say need set eth1 to promisc, ( http://www.mirantis.com/blog/openstack-networking-single-host-flatdhcpmanager/) which seting is recommand or perfer, example1 or example2? example 1 auto eth1 iface eth1 inet manual up ifconfig eth1 up example 2 iface eth1 inet manual up ifconfig $IFACE 0.0.0.0 up up ifconfig $IFACE promisc -- Shake Chen -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack/attachments/20120829/ef0e95e3/attachment.html>