From [http://tx.downloads.xensource.com/downloads/docs/user/#SECTION02220000000000000000 The Xen User Guide]:
  "... 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."


|| mac               || ip          || notes       ||
|| 00:16:3E:00:00:01 || 10.50.71.10 || console.vgrid1 eth0 ||
|| 00:16:3E:00:00:02 || 10.71.0.10  || console.vgrid1 eth1 ||
|| 00:16:3E:00:00:03 || 10.50.72.10 || console.vgrid2 eth0 ||
|| 00:16:3E:00:00:04 || 10.72.0.10  || console.vgrid2 eth1 ||
|| 00:16:3E:00:00:05 || 10.50.73.10 || console.vgrid3 eth0 ||
|| 00:16:3E:00:00:06 || 10.73.0.10  || console.vgrid3 eth1 ||
|| 00:16:3E:00:00:07 || 10.50.74.10 || console.vgrid4 eth0 ||
|| 00:16:3E:00:00:08 || 10.74.0.10  || console.vgrid4 eth1 ||
|| 00:16:3E:00:00:09 || 10.0.0.17   || internal7 eth0      ||