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xen-users
Re: [Xen-users] mac spoofing
As far as I know xen uses IANA reserved address in the form of
00:16:3E:XX:XX:XX.
Try configuring dom0 with vif=[''] and use dhcp. You will that MAC address will
have the above "manufacturer" address.
> On Thu, May 18, 2006 at 08:51:28PM +0200, Heiko.Garrelfs wrote:
> > My Rootserver stands at a hoster ( german 1und1 ), I run a debian sarge
> > and installed Xen 3 there latetly.
> > I booted the xen Kernel - everything ok.
> > However: when I started xend, the server instantly stopped responding.
> > My Hosters Support said, that was due to a sort of mac spoofing
> > protection in the switch, which disabled the Port, to which my server is
> > connected, because there arrived an unknown Mac Address from my Server
> > at the switchport.
> >
> > ( 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.
>
> I don't know where the packets are coming from either. But see below.
>
> > ( 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. )
>
> Have you tried the routed network configuration? That should avoid the
> problem of spoofed MAC addresses, since it doesn't use the bridging
> code, and should configure Dom-0 to use proxy ARP so that all your IP
> addresses will be accessible to the outside using your original MAC
> address.
>
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