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.
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#SECTION022 200000000000000 00 for more info on what MAC address you should use.