Hi Dan, Thank you for your reply! I have installed that hook and removed it again because I was not sure. Following the mailinglist it looks like it's globally doable, so it's actually not ? I understand that but what would be the right steps than ? For an example when you have a vm with 4 nics ? Cheers, Matt 2014-04-07 2:00 GMT+02:00 Dan Kenigsberg <danken(a)redhat.com&gt;: On Mon, Apr 07, 2014 at 01:36:02AM +0200, Matt . wrote: > > Hi Guys, > > > > I'm trying to use Mac spoofing for a Carp setup which is not working out > > well. > > > > Following here: > > > > https://forum.pfsense.org/index.php?topic=68137.0 > > > > and here > > > > http://lists.ovirt.org/pipermail/users/2013-October/017217.html > > > > This should be working by: > > > > engine-config -s EnableMACAntiSpoofingFilterRules=false --cver=3.3 > > > > (The clusters are 3.3 compatible) > > > > In some strange way this is not working in any way. > > > > How can we solve this, as I'm out of options. > > Could you attach vdsm.log from vmCraete of the relevant VM down to the > domxml passed to libvirt? > > Please note that it is possible to enable mac spoofing not in the global > system level, but rather on a specific vNIC of a specific VM. > > For this, you'd need to install vdsm-hook-macspoof, device a vNIC > profile with ifacemacspoof=True custom property, and attach it to your > specific VM. > > Dan. >