Re: [Xen-users] mac addresses domUs

["Fajar A. Nugraha" <fajar@xxxxxxxxxxxx>]

Anthony Valentine wrote:
> "You may also want to edit the vif variable in order to choose the MAC 
> address of the virtual ethernet interface yourself. For example:
>     vif = ['mac=00:16:3E:F6:BB:B3']
>
> If you do not set this variable, xend will automatically generate a 
> random MAC address from the range 00:16:3E:xx:xx:xx, assigned by IEEE 
> to XenSource as an OUI (organizationally unique identifier). XenSource 
> Inc. gives permission for anyone to use addresses randomly allocated 
> from this range for use by their Xen domains."
This script will probably be useful

#!/bin/bash
prefix="00:16:3E"

mac="$prefix"
for seqnum in 1 2 3 ;do
       part=`dd if=/dev/random bs=1 count=1 2>/dev/null | xxd -ps -u`
       mac="$mac:$part"
done
echo $mac

--
Fajar

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