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Re: [Xen-users] No networking on dom0 Lenny

To: Marcel van Dorp <marcel@xxxxxxxxxxx>
Subject: Re: [Xen-users] No networking on dom0 Lenny
From: Nicolas Muñoz <nicolas.munoz.zz@xxxxxxxxx>
Date: Tue, 27 Oct 2009 16:53:08 +0000
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If you have an eth0 device, the hardware is recognized and the driver is
loaded. Apparently the link is not ready.

*) Could the cable be faulty?

I'm afraid not, in fact this networking trouble only happens when I am within Xen, sorry I forgot to precise it. When I am running my 'basic' Lenny non-virtualized, network is fine, with the same cable. I think this answer is also good to go for your following questions :
*) To what switch is the NIC connected?

*) For gigabit, you need 8-wire cables, for 10/100 you only need 4 wires
(pins 1/2 and 3/6). Is that correct? 
*) If connected to a switch, is STP active (port not yet in FWD, takes
up to 50s)
*) If your switch is manageable, what does that side 'say'?

*) Is there a speed/duplex mismatch?

No sign of such a message, so I guess no problems on that.

I really think the problem is Xen-related, as no problem at all are to be noticed with this connection when I boot up my basic system. But thank you for your input anyway, reminds me of my CCNA preparation :-)
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