[openstack-dev] How does instance's tap device mac address generate?

changzhi changzhi at unitedstack.com
Thu Jun 11 09:47:44 UTC 2015

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? 

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20150611/2f332ee2/attachment.html>

More information about the OpenStack-dev mailing list