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Date: 16 Mar 1989 19:25-EST
From: URBANIAK@G.BBN.COM
Subject: Ethernet Type Fields, etc.
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Status: R

Attached is the most recent list of Ethernet Type Fields, Vendor Addresses,
and known Multicast Addresses. please send comments or additions directly
to Urbaniak@BBN.COM.

Future publications of this information will probably be as a TCP/IP
Internet RFC, rather than email to this mailing list. If you wish
to comment on the format in which this data should be presented,
or if you wish to be placed on a private mailing list for these
updates, please send me mail at Urbaniak@BBN.COM, or US Mail at

	Bolt, Beranek & Newman, Inc.
	10 Fawcett Street
	Cambridge, MA 02138
	attn: Walter Urbaniak, MS021
Some Known Ethernet and IEEE802.3 "Type" Fields		3/16/89

The 13th and 14th octets of an Ethernet or IEEE802.3 packet (after the preamble)
consist of the "Type" or "Length" field. These values are managed by XEROX.
Some assignments are public, others private. Current information includes:
Xerox Public Ethernet Packet Type documentation; IEEE802.3 Std; NIC RFC960;
contributions from network managers and vendors.

Hex
0000-05DC	IEEE802.3 Length Field (0.:1500.)
0200	Xerox PUP (conflicts with IEEE802.3 Length Field range) (see 0A00)
0201	Xerox PUP Address Translation (conflicts ...) (see 0A01)
0600	Xerox NS IDP *
0800	DOD Internet Protocol (IP) * #
0801	X.75 Internet
0802	NBS Internet
0803	ECMA Internet
0804	CHAOSnet
0805	X.25 Level 3
0806	Address Resolution Protocol (ARP) * (for IP and for CHAOS)
0807	XNS Compatibility
081C	Symbolics Private
0888-088A	Xyplex
0900	Ungermann-Bass network debugger
0A00	Xerox IEEE802.3 PUP
0A01	Xerox IEEE802.3 PUP Address Translation
0BAD	Banyan Systems
1000	Berkeley Trailer negotiation
1001-100F	Berkeley Trailer encapsulation for IP
1600	VALID system protocol *
5208	BBN Simnet Private %
6000	DEC unassigned, experimental
6001	DEC Maintenance Operation Protocol (MOP) Dump/Load Assistance
6002	DEC Maintenance Operation Protocol (MOP) Remote Console
6003	DECNET Phase IV, DNA Routing
6004	DEC Local Area Transport (LAT)
6005	DEC diagnostic protocol (at interface initialization?)
6006	DEC customer protocol
6007	DEC Local Area VAX Cluster (LAVC), System Communication Architecture (SCA)
6008	DEC unassigned (AMBER?)
6009	DEC unassigned (MUMPS?)
6010-6014	3Com
7000	Ungermann-Bass download
7002	Ungermann-Bass diagnostic/loopback
7020-7029	LRT
7030	Proteon
8003	Cronus VLN
8004	Cronus Direct
8005	HP Probe protocol
8006	Nestar
8008	AT&T
8010	Excelan
8013	Silicon Graphics diagnostic
8014	Silicon Graphics network games
8015	Silicon Graphics reserved
8016	Silicon Graphics XNS NameServer, bounce server
8019	Apollo DOMAIN
802E	Tymshare
802F	Tigan
8035	Reverse Address Resolution Protocol (RARP)
8036	Aeonic Systems
8038	DEC LanBridge Management
8039	DEC unassigned (DSM/DTP?)
803A	DEC unassigned (Argonaut Console?)
803B	DEC unassigned (VAXELN?)
803C	DEC unassigned (NMSV? DNA Naming Service?)
803D	DEC Ethernet CSMA/CD Encryption Protocol
803E	DEC unassigned (DNA Time Service?)
803F	DEC LAN Traffic Monitor Protocol
8040	DEC unassigned (NetBios Emulator?)
8041	DEC unassigned (MS/DOS?, Local Area System Transport?)
8042	DEC unassigned
8044	Planning Research Co.
8046	AT&T
8047	AT&T
8049	ExperData
805B	Stanford V Kernel, experimental
805C	Stanford V Kernel, production
805D	Evans & Sutherland
8060	Little Machines
8062	Counterpoint Computers
8065	University of Massachusetts, Amherst
8066	University of Massachusetts, Amherst
8067	Veeco Integrated Automation
8068	General Dynamics
8069	AT&T
806A	Autophon
806C	ComDesign
806D	Compugraphic
806E-8077	Landmark Graphics
807A	Matra
807B	Dansk Data Elektronik
807C	Merit Internodal (or Univ of Michigan?)
807D-807F	Vitalink
8080	Vitalink TransLAN III Management
8081-8083	Counterpoint Computers
809B	EtherTalk (AppleTalk over Ethernet)
809C-809E	Datability
809F	Spider Systems
80A3	Nixdorf Computers
80A4-80B3	Siemens Gammasonics
80C0-80C3	DCA (Digital Comm. Assoc.) Data Exchange Cluster
80C6	Pacer Software
80C7	Applitek
80C8-80CC	Intergraph
80CD-80CE	Harris
80CF-80D2	Taylor Instrument
80D3-80D4	Rosemount
80DD	Varian
80DE-80DF	Integrated Solutions Transparent Remote File System (TRFS)
80E0-80E3	Allen-Bradley
80E4-80F0	Datability
80F2	Retix
80F3	AppleTalk Address Resolution Protocol (AARP)
80F4-80F5	Kinetics
80F7	Apollo
80FF-8103	Wellfleet
8107	Symbolics Private
8108	Symbolics Private
8109	Symbolics Private
8130	Waterloo Microsystems
8131	VG Laboratory Systems
8137	Novell (old)
8138	Novell
8139-813D	KTI
9000	Loopback (Configuration Test Protocol)
9001	Bridge Communications XNS Systems Management
9002	Bridge Communications TCP/IP Systems Management
9003	Bridge Communications
FF00	BBN VITAL-LanBridge cache wakeups %

* These protocols use Ethernet broadcast, where multicast would be preferable.
# BBN Butterfly Gateways also use 0800 for non-IP, with IP version field = 3.
% BBN Private Protocols, not registered
Some Known Ethernet Vendor Addresses		3/16/89

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).

00000C	Cisco
000020	DIAB (Data Intdustrier AB)
000022	Visual Technology
00002A	TRW
00005A	S & Koch
000065	Network General
000089	Cayman Systems	Gatorbox
000093	Proteon
00009F	Ameristar Technology
0000A9	Network Systems
0000AA	Xerox		Xerox machines
0000B3	CIMLinc
0000C0	Western Digital
0000DD	Gould
0000E2	Acer Counterpoint
000102	BBN		BBN internal usage (not registered)
001700	Kabel
00AA00	Intel
00DD00	Ungermann-Bass
00DD01	Ungermann-Bass
020701	MICOM/Interlan	UNIBUS or QBUS machines, Apollo
020406	BBN		BBN internal usage (not registered)
02608C	3Com		IBM PC; Imagen; Valid
02CF1F	CMC		Masscomp, Silicon Graphics
080002	Bridge
080003	ACC (Advanced Computer Communications)
080005	Symbolics	Symbolics LISP machines
080008	BBN
080009	Hewlett-Packard
08000A	Nestar Systems
08000B	Unisys
080010	AT&T
080014	Excelan		BBN Butterfly, Masscomp, Silicon Graphics
080017	NSC
08001A	Data General
08001B	Data General
08001E	Apollo
080020	Sun		Sun machines
080022	NBI
080025	CDC
080028	TI		Explorer
08002B	DIGITAL
080036	Intergraph	CAE stations
080039	Spider Systems
080045	Xylogics???
080047	Sequent
080049	Univation
08004C	Encore
08004E	BICC
08005A	IBM
080067	Comdesign
080068	Ridge
080069	Silicon Graphics
08006E	Excelan
080075	DDE (Danish Data Elektronik A/S)
08007C	Vitalink	TransLAN III
080080	XIOS
080086	Imagen/QMS
080087	????
080089	Kinetics	AppleTalk-Ethernet interface
08008B	Pyramid
08008D	XyVision	XyVision machines
AA0000	DIGITAL		obsolete~
AA0001	DIGITAL		obsolete~
AA0002	DIGITAL		obsolete~
AA0003	DIGITAL		Global physical address for some older DEC interfaces
AA0004	DIGITAL		Local logical address for systems running DECNET
Some Known Ethernet Multicast Addresses		3/16/89

Ethernet		Type	
Address			Field	Usage

Multicast Addresses:

09-00-02-04-00-01?	8080?	Vitalink printer
09-00-02-04-00-02?	8080?	Vitalink management
09-00-09-00-00-01	8005	HP Probe
09-00-09-00-00-01	802.2LLC	HP Probe
09-00-09-00-00-04	8005?	HP DTC
09-00-1E-00-00-00	8019?	Apollo DOMAIN
09-00-2B-00-00-00	6009?	DEC MUMPS?
09-00-2B-00-00-01	8039?	DEC DSM/DTP?
09-00-2B-00-00-02	803B?	DEC VAXELN?
09-00-2B-00-00-03	8038	DEC Lanbridge Traffic Monitor (LTM)
09-00-2B-00-00-04	????	DEC MAP End System Hello?
09-00-2B-00-00-05	????	DEC MAP Intermediate System Hello?
09-00-2B-00-00-06	803D?	DEC CSMA/CD Encryption?
09-00-2B-00-00-07	8040?	DEC NetBios Emulator?
09-00-2B-00-00-0F	6004	DEC Local Area Transport (LAT)
09-00-2B-00-00-1x	????	DEC Experimental
09-00-2B-01-00-00	8038	DEC LanBridge Copy packets (All bridges)
09-00-2B-01-00-01	8038	DEC LanBridge Hello packets (All local bridges)
				1 packet per second, sent by the
				designated LanBridge
09-00-2B-02-00-00	????	DEC DNA Level 2 Routing Layer routers?
09-00-2B-02-01-00	803C?	DEC DNA Naming Service Advertisement?
09-00-2B-02-01-01	803C?	DEC DNA Naming Service Solicitation?
09-00-2B-02-01-02	803E?	DEC DNA Time Service?
09-00-2B-03-xx-xx	????	DEC default filtering by bridges?
09-00-2B-04-00-00	8041?	DEC Local Area System Transport (LAST)?
09-00-2B-23-00-00	803A?	DEC Argonaut Console?
09-00-4E-00-00-02?	8137?	Novell IPX
09-00-7C-02-00-05	8080?	Vitalink diagnostics
09-00-7C-05-00-01	8080?	Vitalink gateway?
0D-1E-15-BA-DD-06	????	HP
AB-00-00-01-00-00	6001	DEC Maintenance Operation Protocol (MOP)
				DNA Dump/Load Assistance
AB-00-00-02-00-00	6002	DEC Maintenance Operation Protocol (MOP)
				DNA Remote Console
				1 System ID packet every 8-10 minutes, by every:
				DEC LanBridge
				DEC DEUNA interface
				DEC DELUA interface
				DEC DEQNA interface (in a certain mode)
AB-00-00-03-00-00	6003	DECNET Phase IV end node Hello packets
				1 packet every 15 seconds, sent by each DECNET host
AB-00-00-04-00-00	6003	DECNET Phase IV Router Hello packets
				1 packet every 15 seconds, sent by the DECNET router
AB-00-00-05-00-00	????	Reserved DEC
through		
AB-00-03-FF-FF-FF
AB-00-03-00-00-00	6004	DEC Local Area Transport (LAT) - old
AB-00-04-00-xx-xx	????	Reserved DEC customer private use
AB-00-04-01-xx-yy	6007	DEC Local Area VAX Cluster groups
				System Communication Architecture (SCA)
CF-00-00-00-00-00	9000	Ethernet Configuration Test protocol (Loopback)

Broadcast Address:

FF-FF-FF-FF-FF-FF	0600	XNS packets, Hello or gateway search?
				6 packets every 15 seconds, per XNS station
FF-FF-FF-FF-FF-FF	0800	IP (e.g. RWHOD via UDP) as needed
FF-FF-FF-FF-FF-FF	0804	CHAOS
FF-FF-FF-FF-FF-FF	0806	ARP (for IP and CHAOS) as needed
FF-FF-FF-FF-FF-FF	0BAD	Banyan
FF-FF-FF-FF-FF-FF	1600	VALID packets, Hello or gateway search?
				1 packets every 30 seconds, per VALID station
FF-FF-FF-FF-FF-FF	8035	Reverse ARP
FF-FF-FF-FF-FF-FF	807C	Merit Internodal (INP)
FF-FF-FF-FF-FF-FF	809B	EtherTalk

