> >
> > vif = [ 'mac=XX:XX:XX:XX:XX:XX' ]
> >
> > Now, the MAC address is always the same and thus I don't 
> need the ugly ping 
> > hack.
>
> this is good, but if I start multiple domains, like this
>
> xm create vm4-bproc vmid=1
> xm create vm4-bproc vmid=2
> xm create vm4-bproc vmid=3
> xm create vm4-bproc vmid=4
>
> then I'll end up with 4 copies of the same mac. Is there some 
> way to tie 
> mac generation to vmid ?
The following will work, though has obvious limitations (256 domains):
vif = [ 'mac=XX:XX:XX:XX:%02x:XX' % vmid ]
The netback vif needs a MAC addr too, and this is picked as the frontend's MAC 
addr+1. This was probably a bad choice as people tend to pick consecutive MAC 
addrs for their domains. We should probably move the front/back bit to a mor 
esignificant bit.
Hence, the above vif= line sets vmid into the 2nd octet.
Ian
Ian
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