Re: [Xen-users] IP configuration for domU ignored

[Pablo Javier Roca Mendez <pablo.javier.roca.mendez@xxxxxxxxx>]

On Thu, Jul 13, 2006 at 10:17:21AM +0300, Alexander Kostadinov wrote:
> 
> 
> On Tue, 11 Jul 2006, Pablo Javier Roca Mendez wrote:
> 
> >Hello!
> >
> >>To me it seems like a kernel problem...
> >>Which kernel versions did you used?
> >
> >In Opensuse 10.1 it was vmlinuz-2.6.16.13-4-xen
> >In Kubuntu 5.10 it was vmlinuz-2.6.16-xen (binary install of Xen 3.0.2)
> >With Xen 3.0.1 it works. I sent a follow-up stating this:
> >http://lists.xensource.com/archives/html/xen-users/2006-06/msg00532.html
> >
> I am not sure if this is required, but there is an option in the kernel 
> that allows for ip auto configuration. I think that it is disabled and 
> this is the reason for the problem.
> 
> I will investigate that later because I have urgent work for now.

I didn't know about that option, but you are right!

I found out that the config option CONFIG_IP_PNP has to be set in the kernel
for the kernel IP autoconfiguration to work.
I then checked the configuration of he kernels not working (i.e. ignoring the
ip=... kernel command line) and CONFIG_IP_PNP wasn't set, as you suspected.

Thank you very much for your pointers!

Best regards,
Pablo

-- 
Pablo Javier Roca Mendez
Intel GmbH/Bruehl, Hermuelheimer Str. 8a, 50321 Bruehl, Germany
Tel.: +49-2232-209024

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