Further example of why this is needed: see my comment on Bug 726635. VirtualBox appears to use a "borrowed" MAC range, rather than an officiant assignment. That means it's probably not a great idea to use that MAC address range as a basis for black/whitelisting.
Further example of why this is needed: see my comment on Bug 726635. VirtualBox appears to use a "borrowed" MAC range, rather than an officiant assignment. That means it's probably not a great idea to use that MAC address range as a basis for black/whitelisting.