[lug] dhcp leases based on first 6 digits of mac address

[hugh at math.byu.edu]

I'm trying to figure out how to grant a lease to any machine based on the
manufacturer portion of the mac address (e.g.  f0:0f:00:* should get a
lease).  The dhcp server denies unknown clients and needs to stay that
way.  Does anyone know how to tell the ISC dhcp server to treat f0:0f:00:*
as known clients without having to list all 16^6 possible addresses?

Hugh