Re: [Xen-users] mac spoofing

[Javier Guerra <javier@xxxxxxxxxxx>]

On Friday 19 May 2006 7:06 am, Heiko.Garrelfs wrote:
> ( btw: at that point,  I had not configured any domU's )
>
> From the Xen Docs I understand that the bridge gets the mac from eth0
> which is then diabled.
>
> So - I dont understand where the 'spoofed' Mac is coming from - at least
> as long I have no domU running.

maybe the bridge is generating some STP (spanning tree protocol) events at 
setting up time.  the hoster's switch interprets it as if you've put your own 
switch at the given port (it would be a correct interpretation, btw).  try to 
disable STP (brctl stp br0 off) before adding peth0 to it.

> ( I dont want to use NAT: I have two IPs ( only one NIC )for the Server
> and want the dom0 and one domU to run on one IP each. )

make sure that you're allowed to put two machines at that port.  if you don't 
use NAT or routing you'll have to use two MACs at a single port.  maybe 
you'll have to ask them to register your new MAC to add it to their bridging 
table.

-- 
Javier

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