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- From: noah@apple.com (Noah Price)
- Newsgroups: comp.sys.mac.programmer
- Subject: Re: Uniquely identifying a Mac? How?
- Message-ID: <noah-040193102215@noah.apple.com>
- Date: 4 Jan 93 18:23:50 GMT
- References: <peter-211292133304@rocky.curtin.edu.au> <bobert.725056383@godzilla> <1hb3o8INNt5h@calvin.NYU.EDU> <1458@shrike.com>
- Sender: news@gallant.apple.com
- Followup-To: comp.sys.mac.programmer
- Organization: (not the opinions of) Apple Computer, Inc.
- Lines: 21
-
- In article <1458@shrike.com>, flash@austin.lockheed.com (James W. Melton)
- wrote:
- > In article <1hb3o8INNt5h@calvin.NYU.EDU> roy@mchip00.med.nyu.edu (Roy Smith) writes:
- > > Any box that comes with a built-in ethernet port has the moral
- > >equivalent of a machine-readable serial number -- the ethernet 6-byte
- > >hardware address.
- >
- > I have bad news for you: The ethernet address is set in software.
- > The high-order portion of the address is supposed to reflect the
- > manufacturer, and the low-order portion is supposed to be machine
- > unique (a serial number), but this is not accomplished in hardware
- > NECESSARILY.
-
- I know "any box" wasn't limited to a Macintosh, but all the Macs with
- on-board ethernet have a unique address in a PROM.
-
- noah
-
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- noah@apple.com Macintosh Hardware Design
- ...!{sun,decwrl}!apple!noah (not the opinions of) Apple Computer, Inc.
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