With IPv4 addresses running out, here is something that we coould do to help with the existing Ipv4 addresses that we have.

If we can identify via MAC things like Android phones, iphones ,and other devices that typically do not need a public, it would be nice to say, xyz MACs can get this IP pool, giving them privates, where as everything else, and/or other specific vendor MACs can get a public. Just a thought.