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1993-08-10
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Vendor Addresses
Ethernet hardware addresses are 48 bits, expressed as 12 hexadecimal digits
(0-9, plus A-F, capitalized). These 12 hex digits consist of
the first/left 6 digits (which should match the vendor of the Ethernet interface
within the station) and the last/right 6 digits which specify the interface
serial number for that interface vendor.
Ethernet addresses might be written unhyphenated (e.g. 123456789ABC),
or with one hyphen (e.g. 123456-789ABC), but should be written hyphenated
by octets (e.g. 12-34-56-78-9A-BC).
These addresses are physical station addresses, not multicast nor
broadcast, so the second hex digit (reading from the left)
will be even, not odd.
At present, it is not clear how the IEEE assigns Ethernet block addresses.
Whether in blocks of 2**24 or 2**25, and whether multicasts are assigned
with that block or separately. A portion of the vendor block address
is reportedly assigned serially, with the other portion intentionally
assigned randomly. If there is a global algorithm for which addresses
are designated to be physical (in a chipset) versus logical
(assigned in software), or globally-assigned versus locally-assigned addresses,
some of the known addresses do not follow the scheme (e.g AA0003; 02xxxx).
00-00-0C Cisco
00-00-0F NeXT
00-00-10 Sytek
00-00-1D Cabletron
00-00-20 DIAB (Data Intdustrier AB)
00-00-22 Visual Technology
00-00-2A TRW
00-00-5A S & Koch
00-00-5E U.S. Department of Defense
00-00-65 Network General
00-00-6B MIPS
00-00-77 MIPS
00-00-7A Ardent
00-00-7B Research Machines
00-00-89 Cayman Systems Gatorbox
00-00-93 Proteon
00-00-94 Asante
00-00-9F Ameristar Technology
00-00-A2 Wellfleet
00-00-A3 Network Application Technology
00-00-A4 Acorn
00-00-A6 Network General (internal assignment, not for products)
00-00-A7 NCD X-terminals
00-00-A9 Network Systems
00-00-AA Xerox Xerox machines
00-00-B3 CIMLinc
00-00-B7 Dove Fastnet
00-00-BC Allen-Bradley
00-00-C0 Western Digital
00-00-C6 HP Intelligent Networks Operation (formerly Eon Systems)
00-00-C8 Altos
00-00-C9 Emulex Terminal Servers
00-00-D1 Adaptec Inc. "Nodem" product
00-00-D7 Dartmouth College (NED Router)
00-00-D8 3Com? Novell? PS/2
00-00-DD Gould
00-00-DE Unigraph
00-00-E2 Acer Counterpoint
00-00-EF Alantec
00-00-FD High Level Hardvare (Orion, UK)
00-01-02 BBN BBN internal usage (not registered)
00-17-00 Kabel
00-80-2D Xylogics, Inc. Annex terminal servers
00-80-8C Frontier Software Development
00-AA-00 Intel
00-DD-00 Ungermann-Bass
00-DD-01 Ungermann-Bass
00-EF-E5 IBM (3Com card) Microchannel interface (maybe not Ether number)
02-07-01 MICOM/Interlan DEC (UNIBUS or QBUS), Apollo
02-04-06 BBN BBN internal usage (not registered)
02-60-86 Satelcom MegaPac (UK)
02-60-8C 3Com IBM PC; Imagen; Valid; Cisco
02-CF-1F CMC Masscomp; Silicon Graphics; Prime EXL
08-00-02 3Com (Formerly Bridge)
08-00-03 ACC (Advanced Computer Communications)
08-00-05 Symbolics Symbolics LISP machines
08-00-08 BBN
08-00-09 Hewlett-Packard
08-00-0A Nestar Systems
08-00-0B Unisys
08-00-10 AT&T
08-00-11 Tektronix, Inc.
08-00-14 Excelan BBN Butterfly, Masscomp, Silicon Graphics
08-00-17 NSC
08-00-1A Data General
08-00-1B Data General
08-00-1E Apollo
08-00-20 Sun
08-00-22 NBI
08-00-25 CDC
08-00-26 Norsk Data (Nord)
08-00-27 PCS Computer Systems GmbH
08-00-28 TI Explorer
08-00-2B DEC
08-00-2E Metaphor
08-00-2F Prime Computer Prime 50-Series LHC300
08-00-36 Intergraph CAE stations
08-00-37 Fujitsu-Xerox
08-00-38 Bull
08-00-39 Spider Systems
08-00-3E Motorola VME bus processor modules
08-00-41 DCA Digital Comm. Assoc.
08-00-45 ???? (maybe Xylogics, but they claim not to know this number)
08-00-46 Sony
08-00-47 Sequent
08-00-49 Univation
08-00-4C Encore
08-00-4E BICC
08-00-56 Stanford University
08-00-58 ??? DECsystem-20
08-00-5A IBM
08-00-67 Comdesign
08-00-68 Ridge
08-00-69 Silicon Graphics
08-00-6E Excelan
08-00-75 DDE (Danish Data Elektronik A/S)
08-00-7C Vitalink TransLAN III
08-00-80 XIOS
08-00-81 Crosfield Electronics
08-00-86 Imagen/QMS
08-00-87 Xyplex terminal servers
08-00-89 Kinetics AppleTalk-Ethernet interface
08-00-8B Pyramid
08-00-8D XyVision XyVision machines
08-00-90 Retix Inc Bridges
10-00-5A IBM [misrepresentation of 08005A?]
48-44-53 HDS ???
80-00-10 AT&T [misrepresentation of 080010?]
AA-00-00 DEC obsolete
AA-00-01 DEC obsolete
AA-00-02 DEC obsolete
AA-00-03 DEC Global physical address for some DEC machines
AA-00-04 DEC Local logical address for systems running DECNET