Ref: 13390016
Title: Ethernet Type Fields, and Vendor and Multicast Addresses
Date: 12/13/90

Copyright 3Com Corporation, 1991.  All rights reserved.

Following are the most recent lists of Ethernet Type Fields, Vendor Addresses,
and known Multicast Addresses.


SOME KNOWN ETHERNET AND IEEE802.3 TYPE FIELDS (10/29/88)

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; and contributions from network managers and vendors.

Hex
0000-05DCIEEE802.3 Length Field (0.:1500.)
0200Xerox PUP (conflicts with IEEE802.3 Length Field range) (see 0A00)
0201Xerox PUP Address Translation (conflicts ...) (see 0A01)
0600Xerox NS IDP *
0800DOD Internet Protocol (IP) * #
0801X.75 Internet
0802NBS Internet
0803ECMA Internet
0804CHAOSnet
0805X.25 Level 3
0806Address Resolution Protocol (ARP) * (for IP and for CHAOS)
0807XNS Compatibility
081CSymbolics Private
0888Xyplex
0900Ungermann-Bass network debugger
0A00Xerox IEEE802.3 PUP
0A01Xerox IEEE802.3 PUP Address Translation
0BADBanyan Systems
1000Berkeley Trailer negotiation
1001-100FBerkeley Trailer encapsulation for IP
1600VALID system protocol *
5208BBN Simnet Private %
6000DEC unassigned
6001DEC Maintenance Operation Protocol (MOP) Dump/Load Assistance
6002DEC Maintenance Operation Protocol (MOP) Remote Console
6003DECNET Phase IV
6004DEC Local Area Transport (LAT)
6005DEC diagnostic protocol (at interface initialization?)
6006DEC customer protocol
6007DEC Local Area VAX Cluster (LAVC)
6008DEC unassigned
6009DEC unassigned
7000Ungermann-Bass download
7002Ungermann-Bass diagnostic/loopback
8003Cronus VLN
8004Cronus Direct
8005HP Probe protocol
8006Nestar
8010Excelan
8013Silicon Graphics diagnostic
8014Silicon Graphics network games
8015Silicon Graphics reserved
8016Silicon Graphics XNS NameServer, bounce server
8019Apollo DOMAIN
8035Reverse Address Resolution Protocol (RARP)
8038DEC LanBridge Management
8039DEC unassigned
803ADEC unassigned
803BDEC unassigned
803CDEC unassigned
803DDEC Ethernet Encryption Protocol
803EDEC unassigned
803FDEC LAN Traffic Monitor Protocol
8040DEC unassigned
8041DEC unassigned
8042DEC unassigned
805BStanford V Kernel, experimental
805CStanford V Kernel, production
807CMerit Internodal
8080Vitalink TransLAN III Management
809BEtherTalk (AppleTalk over Ethernet)
80C1DCA Data Exchange Cluster
80DETRFS (Integrated Solutions Transparent Remote File System)
80F3AppleTalk Address Resolution Protocol (AARP)
8107Symbolics Private
8108Symbolics Private
8109Symbolics Private
8137Novell (old)
9000Loopback (Configuration Test Protocol)
9001Bridge Communications XNS Systems Management
9002Bridge Communications TCP/IP Systems Management
FF00BBN 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 (10/29/88)

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.

00000CCisco
000020DIAB (Data Intdustrier AB)
000022Visual Technology
00002ATRW
00005AS & Koch
000065Network General
000093Proteon
00009FAmeristar Technology
0000A9Network Systems
0000AAXeroxXerox machines
0000B3CIMLinc
0000C0Western Digital
0000DDGould
000102BBNBBN internal usage (not registered)
001700Kabel
00DD00Ungermann-Bass
00DD01Ungermann-Bass
020701InterlanUNIBUS or QBUS machines, Apollo
020406BBNBBN internal usage (not registered)
02608C3ComIBM PC; Imagen; Valid
02CF1FCMCMasscomp, Silicon Graphics
080002Bridge
080003ACC (Advanced Computer Communications)
080005SymbolicsSymbolics LISP machines
080008BBN
080009Hewlett-Packard
08000ANestar Systems
08000BUnisys
080010AT+T
080014ExcelanBBN Butterfly, Masscomp, Silicon Graphics
080017NSC
08001AData General
08001BData General
08001EApollo
080020SunSun machines
080022NBI
080025CDC
080028TIExplorer
08002BDECUNIBUS or QBUS machines, VAXen, LANBridges
(DEUNA, DEQNA, DELUA)
080036IntergraphCAE stations
080039Spider Systems
080045Xylogics???
080047Sequent
080049Univation
08004CEncore
08004EBICC
08005AIBM
080067Comdesign
080068Ridge
080069Silicon Graphics
08006EExcelan
080075DDE (Danish Data Elektronik A/S)
08007CVitalinkTransLAN III
080080XIOS
080087????
080089KineticsAppleTalk-Ethernet interface
08008BPyramid
08008DXyVisionXyVision machines
AA0003DECGlobal physical address for some DEC machines
AA0004DECLocal logical address for systems running DECNET


SOME KNOWN ETHERNET MULTICAST ADDRESSES(10/29/88)

EthernetType
AddressFieldUsage

Multicast Addresses:

09-00-02-04-00-01?8080?Vitalink printer
09-00-02-04-00-02?8080?Vitalink management
09-00-09-00-00-018005HP Probe
09-00-09-00-00-01802.2LLCHP Probe
09-00-09-00-00-048005?HP DTC
09-00-1E-00-00-008019?Apollo DOMAIN
09-00-2B-00-00-038038DEC Lanbridge Traffic Monitor (LTM)
09-00-2B-00-00-0F6004DEC Local Area Transport (LAT)
09-00-2B-01-00-008038DEC LanBridge Copy packets
09-00-2B-01-00-018038DEC LanBridge Hello packets
1 packet per second, sent by the
designated LanBridge
09-00-4E-00-00-02?8137?Novell IPX
09-00-7C-02-00-058080?Vitalink diagnostics
09-00-7C-05-00-018080?Vitalink gateway?
0D-1E-15-BA-DD-06????HP
AB-00-00-01-00-006001DEC Maintenance Operation Protocol (MOP)
Dump/Load Assistance
AB-00-00-02-00-006002DEC Maintenance Operation Protocol (MOP)
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-00-00-03-00-006003DECNET Phase IV end node Hello packets
1 packet every 15 seconds, sent by each DECNET host
AB-00-00-04-00-006003DECNET 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-00-03-00-00-006004DEC Local Area Transport (LAT) - old
AB-00-04-00-00-00????Reserved DEC customer private use
through
AB-00-04-00-FF-FF
AB-00-04-01-xx-yy6007DEC Local Area VAX Cluster groups
CF-00-00-00-00-009000Ethernet Configuration Test protocol (Loopback)

Broadcast Address:

FF-FF-FF-FF-FF-FF0600XNS packets, Hello or gateway search?
6 packets every 15 seconds, per XNS station
FF-FF-FF-FF-FF-FF0800IP (e.g. RWHOD via UDP) as needed
FF-FF-FF-FF-FF-FF0804CHAOS
FF-FF-FF-FF-FF-FF0806ARP (for IP and CHAOS) as needed
FF-FF-FF-FF-FF-FF0BADBanyan
FF-FF-FF-FF-FF-FF1600VALID packets, Hello or gateway search?
1 packets every 30 seconds, per VALID station
FF-FF-FF-FF-FF-FF8035Reverse ARP
FF-FF-FF-FF-FF-FF807CMerit Internodal (INP)
FF-FF-FF-FF-FF-FF809BEtherTalk