SS1 ethernet MAC address...

From: Sean 'Captain Napalm' Conner <spc_at_conman.org>
Date: Wed Aug 22 18:12:26 2001

It was thus said that the Great Dave McGuire once stated:
>
> On August 22, Gene Buckle wrote:
> > I've got an SS1 with a dead NVRAM chip. From the FAQs I've read, it's
> > trivial to set the MAC address after the chip dies and it's set to
> > FF:FF:FF:FF:FF:FF. Providing I use the Sun "standard" of 08:00:20 as the
> > first three bytes of the MAC address, is there any real issue with me
> > choosing a random value for the last three bytes? Alternately, if I call
>
> Real issues? No. I do it all the time.

  Just make sure you don't duplicate MAC addresses. That's the only real
issue. Oh, and if you get more Suns, make sure you check their MAC
addresses for possible conflicts.

  Alternatively, you CAN assign your own MAC addresses. MAC addresses have
the following structure:

                      +------------ Vendor ID
                      |
         -------------+--------------
        [********][********][********][********][********][********]
               ^^ -------------+--------------
               || |
               || +--- assigned by vendor
               ||
               |+----------- Group/Individual bit (used for multicast)
               |
               +------------ Global/Local bit (0 - vendor ID, 1 - locally
                                               assigned)

  As long as the Global/Local bit is set, you can use any values you want
for the MAC address (again, as long as they don't conflict).

  -spc (This is Ethernet---it's older than 10 years---it's on topic 8-)
Received on Wed Aug 22 2001 - 18:12:26 BST