Hi, In the cli of neutron router-gateway-set, thers is an option of disable snat. http://docs.openstack.org/cli-reference/neutron.html#neutron-router-gateway-set Does that mean i can create a tenant network and the packet will go out with the same fixed ip of the vm? Assume the tenant network created is routable or identifiable in the physical network. I tried to disable snat for the router gateway, but the packet wasn't going out from the external interface. Do i need to edit some iptable rules or the disable snat option doesn't work? Thanks, Akshay -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-operators/attachments/20160116/7ea4b483/attachment.html>