On Mon, 2011-02-28 at 12:57 +1100, Mark Andrews wrote: > Except in the senarios being described they are also blocking the > other addresses. I would also think setting the "M" bit would > prelude the host from generating such addresses as they are unmanaged. I think the M flag says "you can get an address via DHCP" - it doesn't say "and don't get an address via any other means".