On Sun, 2011-06-05 at 01:02 +0200, Holger Fischer wrote:
> 
> Sometimes lm works but after migration machine is not reachable
> through network anymore. 
> Somebody mentioned a cronjob with traffic on vnet-device would help
> keeping machine reachable through network. 

You probably need to set the arp_notify sysctl on the net device inside
the guest. This was fixed upstream and backported into the 2.6.32.32
longterm release which is in the Debian 2.6.32-31 package which was
recently added to Squeeze in a stable update.

Ian.
-- 
Ian Campbell
Current Noise: Godflesh - Sterile Prophet (Version)

Q:      How many mathematicians does it take to screw in a light bulb?
A:      One.  He gives it to six Californians, thereby reducing the problem
        to the earlier joke.




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