Comment 15 for bug 150805

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Nat Blundell (nat-isotoma) wrote :

I had the same problem with Gutsy domU on Gutsy dom0. It is caused by xend generating a new MAC address each boot, udev recognises this as a new card and therefore creates a new entry.

Add MAC address to the domU config file like:

vif = [ 'mac=00:11:22:33:44:55' ]

See http://www.cl.cam.ac.uk/research/srg/netos/xen/readmes/user/user.html#SECTION02220000000000000000 for more info on what MAC address you should use.