> > Can you access /dev/net/tun as the user than runs the guest?
> > (are you running it as uml-net?)
> > What about the permissions on /dev/net, etc...
> >   
> Yup, I can `touch /dev/net/tun' and write onto it.  /dev/net is 755:
> 
> drwxr-xr-x  2 root root 60 2006-08-24 09:17 /dev/net/
> 
> but it doesn't seem like that should matter if i have write access to 
> /dev/net/tun.
It would, see standard Unix file permissions.

Hmm, is the interface up before you start the guest kernel?
(what does ifconfig tap0 say - replace tap0 with interface name)

Antoine


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