Subject: Re: DECserver 300 Software Needed
To: der Mouse <mouse@Rodents.Montreal.QC.CA>
From: Johnny Billquist <bqt@Update.UU.SE>
List: port-vax
Date: 04/22/2000 11:20:13
On Sat, 22 Apr 2000, der Mouse wrote:

> I can't help with much of it, but I can clear up this much.
> 
> > MOP DL 8:0:2b:19:8f:4e   > ab:0:0:1:0:0      len   24 code 08 RPR
> 
> > The ethernet address shown is the DECServer, I assume ab:0:0:1:0:0 is
> > a broadcast address?
> 
> I *think* there's only one broadcast Ethernet address,
> ff:ff:ff:ff:ff:ff.  ab:0:0:1:0:0 is a multicast address, used for just
> this sort of MOP booting.

Well, no. Multicast is an IP term. In ethernet, all addresses with a "1"
in the low bit of the first byte is a broadcast, since that is the
broadcast bit.
It is, however, up to every machine to decide which broadcast you want to
receive (inlcuing the all-ones).

	Johnny

Johnny Billquist                  || "I'm on a bus
                                  ||  on a psychedelic trip
email: bqt@update.uu.se           ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol