Hi Stefan, May be you can try again this test of macvtap on your environment, but please remove the bridge from eth0. because macvtap doesent work with bridge setup. -----Original Message----- From: Amit Tewari Sent: Thursday, December 15, 2011 9:05 AM To: 'Laine Stump'; libvir-list(a)redhat.com Subject: RE: [libvirt] macvtap nt working on kvm Hi, Actually macvatap doesn't work with bridge. So once the physical device is attached to a bridge, a macvtap attached to that device no longer works. In my case there is no bridge on the interface. but still guest os is not able to get ip address. Is there no support for macvtap on red hat 6.1 x_86 platforms? -----Original Message----- From: libvir-list-bounces(a)redhat.com [mailto:libvir-list-bounces@redhat.com] On Behalf Of Laine Stump Sent: Thursday, December 15, 2011 2:31 AM To: libvir-list(a)redhat.com Subject: Re: [libvirt] macvtap nt working on kvm On 12/14/2011 02:26 PM, Stefan Berger wrote: Interesting. So you're saying that once the physical device is attached to a bridge, a macvtap attached to that device no longer works? That's useful to know :-) -- libvir-list mailing list libvir-list(a)redhat.com https://www.redhat.com/mailman/listinfo/libvir-list DISCLAIMER: ----------------------------------------------------------------------------------------------------------------------- The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only. It shall not attach any liability on the originator or NECHCL or its affiliates. Any views or opinions presented in this email are solely those of the author and may not necessarily reflect the opinions of NECHCL or its affiliates. Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have received this email in error please delete it and notify the sender immediately. . -----------------------------------------------------------------------------------------------------------------------