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List:       linux-390
Subject:    Re: Guest network connection error
From:       David Boyes <dboyes () sinenomine ! net>
Date:       2009-10-31 23:55:55
Message-ID: 2DC00BBA-09E9-4BF1-9021-8ECA5A61745C () sinenomine ! net
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On Oct 30, 2009, at 11:07 PM, "van Sleeuwen, Berry" <Berry.vanSleeuwen@atosorigin.com 
 > wrote:

> Actually I have been looking at the MAC addresses in both VM's and  
> there
> are a few guests that have duplicates. But this machine actually  
> didn't
> got a duplicate MAC address assigned so at this point this guest is  
> not
> affected by a duplicate.

With layer 2, you also have to worry about every system on the same  
VLAN OUTSIDE the VM environment too. Make sure you check there too and  
fix the MAC prefix.




>
> I do see the need to resolve the potential duplicate MAC's but it  
> looks
> like it will not help us in this case. Still it makes me wonder why we
> didn't have any problems with that in the past 2 years.

You got lucky.

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