> 
> They have to support multiple _multicast_ MAC addresses.  There is no
> particular reason why they should support multiple _unicast_ MAC
> addresses.  (There's no reason obvious to me why they should care, but
> they may.  Why does NetBSD refuse to accept ff:ff:ff:ff:ff:ff as MAC
> address?  I don't know, and it prevents a few potentially useful hacks.

Done that! sent an ISO test packet to ff:ff:ff:ff:ff:ff from
ff:ff:ff:ff:ff:ff on a network with some buggy systems that
misprocessed the LSAPs (both also 0xff).  Fortunatately it all
died down quite quickly!

	David

-- 
David Laight: david@l8s.co.uk