Hi, all: Here is a requirement: deny/permit incoming packets on VM by mac addresses, I have tried to find better method than modifying neutron code, but failed. Any suggesion is grateful. Thank you. Yan. yan_xing_an at 163.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20150714/acfc820a/attachment.html>