> bootpd can be configured to reply by broadcast, but
> I'm not sure if this is portable.

If you set the broadcast bit in the flags field of the BOOTREQUEST
packet, the server is obliged to respond with a broadcast.  I actually
use BPF in my DHCP client and do not request a broadcast reply, but
I'm operating from userland, so it's a bit less painful.

			       _MelloN_