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- Path: sparky!uunet!cs.utexas.edu!ut-emx!shrike!flash
- From: flash@austin.lockheed.com (James W. Melton)
- Newsgroups: comp.sys.mac.programmer
- Subject: Re: Uniquely identifying a Mac? How?
- Message-ID: <1458@shrike.com>
- Date: 29 Dec 92 07:06:30 GMT
- References: <peter-211292133304@rocky.curtin.edu.au> <bobert.725056383@godzilla> <1hb3o8INNt5h@calvin.NYU.EDU>
- Organization: "Lockheed Austin Division, 6800 Burleson Rd, Austin, TX 78744
- Lines: 16
-
- 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.
-
- There is NO fool-proof method of machine identification short of
- the ubiquitous "dongle" method.
-
- "Build a system even a fool can use, and only a fool will use it."
-