Hi Razique, Thank you for your reply. You mean iptables-save as configuration? So, if i edit a chain in iptables-save and re-store back, does added rule gets effect? I did a iptables -F on a chain and all iptable rules for that neutron chain got deleted. But the moment I restart VM or launch a new VM, deleted chain rules got reloaded into iptables. Thanks, Shiva -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-operators/attachments/20140329/9048e537/attachment.html>