On Tue, Aug 4, 2009 at 12:30 PM, Brett Serkez<bserkez at gmail.com> wrote: > On Tue, Aug 4, 2009 at 9:09 AM, Christoph Maser<cmr at financial.com> wrote: > <snip> >> When Xen starts does some trickery with your interfaces. You should see >> FE:FF:FF:FF:FF:FF on device peth0 and the real MAC-address on device >> eth0. >> All Xen vif devices will show also MAC FE:FF:FF:FF:FF:FF. That is >> totally normal. > > I wanted to clarify on this point. Understood as far as the above, > but the issue is that the PHYSICAL MAC was changed to > FE:FF:FF:FF:FF:FF. > > This went so far as to still have this value even after rebooting on > the standard kernel and then uninstalling XEN: > > # dmesg | grep eth1 > eth1: RTL8110s at 0xee156c00, fe:ff:ff:ff:ff:ff, XID 04000000 IRQ 22 > > What ever happened during the first boot of XEN caused a permanent > change to this NIC as far as I can tell. Maybe because you are looking at the bridge's mac and not the ethernet's which would be peth0. -Ross