Hi, all. I create a vm and it's neutron port's mac address is "fa:16:3e:3f:02:ff". I see "fa:16:3e:3f:02:ff" inside vm when I run "ifconfig eth0". Why does vm's tap device's mac address is "fe:16:3e:3f:02:ff"? Why different between neutron port's mac address and tap device's mac address? Does libvirt create instance tap device and its mac address is generated randomly? Thx zhi -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20150611/2f332ee2/attachment.html>