Mailing List Archive: dom0 MAC address

dom0 MAC address

May 23, 2005, 1:43 PM

Post #1 of 4 (800 views)

The network card's MAC address in domain 0 is showing up as different from
native Linux. Is there a way around that which will work at boot time? The
environment here requires them to be identical to get the correct IP address via
DHCP. This is Xen 2.0.6.

Thanks for any insight,
Tim

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Re: dom0 MAC address [ In reply to ]

tfreeman at mcs

May 23, 2005, 2:00 PM

Post #2 of 4 (794 views)

Permalink

On Mon, 23 May 2005 15:43:51 -0500
Tim Freeman <tfreeman@mcs.anl.gov> wrote:

> The network card's MAC address in domain 0 is showing up as different from
> native Linux. Is there a way around that which will work at boot time? The
> environment here requires them to be identical to get the correct IP address
> via DHCP. This is Xen 2.0.6.

eth0 and eth1 were getting flipped. I was on my way to adjusting the MAC in
if-pre-up when I realized the new one doesn't even work ... woops.

Thanks,
Tim

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RE: dom0 MAC address [ In reply to ]

m+Ian.Pratt at cl

May 23, 2005, 2:27 PM

Post #3 of 4 (793 views)

Permalink

> > The network card's MAC address in domain 0 is showing up as
> different
> > from native Linux. Is there a way around that which will
> work at boot
> > time? The environment here requires them to be identical to get the
> > correct IP address via DHCP. This is Xen 2.0.6.
>
> eth0 and eth1 were getting flipped. I was on my way to
> adjusting the MAC in if-pre-up when I realized the new one
> doesn't even work ... woops.

That's pretty surprising given that we leave linux to do the pci
probing, so the result should be the same as the equivalent native Linux
version (though Linux has flipped the order between certain version).
Are you sure you have drivers for both cards in the kernel?

ian

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Re: dom0 MAC address [ In reply to ]

tfreeman at mcs

May 23, 2005, 2:32 PM

Post #4 of 4 (793 views)

Permalink

On Mon, 23 May 2005 22:27:38 +0100
"Ian Pratt" <m+Ian.Pratt@cl.cam.ac.uk> wrote:

>
> > > The network card's MAC address in domain 0 is showing up as
> > different
> > > from native Linux. Is there a way around that which will
> > work at boot
> > > time? The environment here requires them to be identical to get the
> > > correct IP address via DHCP. This is Xen 2.0.6.
> >
> > eth0 and eth1 were getting flipped. I was on my way to
> > adjusting the MAC in if-pre-up when I realized the new one
> > doesn't even work ... woops.
>
> That's pretty surprising given that we leave linux to do the pci
> probing, so the result should be the same as the equivalent native Linux
> version (though Linux has flipped the order between certain version).
> Are you sure you have drivers for both cards in the kernel?

Yeah, that was the problem, the driver for the fancy card is only in native
Linux, so "flipped" is incorrect.

Thanks,
Tim

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