Path: utzoo!mnetor!uunet!husc6!mailrus!ames!pasteur!ucbvax!MONK.PROTEON.COM!jas
From: jas@MONK.PROTEON.COM (John A. Shriver)
Newsgroups: comp.protocols.tcp-ip
Subject: ARP protocol address space field on ProNET
Message-ID: <8803281611.AA22631@monk.proteon.com>
Date: 28 Mar 88 16:11:30 GMT
References: <17842@watmath.waterloo.edu>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 44

Well, we keep a copy in all the manuals, but I'll post it anyways,
since some of those are getting dated.  Quite a few proprietary
(customer) protocols are supressed in this list, sorry.  At least
we'll post most of it, unlike Xerox/ANSI on Ethernet.

Proteon ProNET-10/80 data link types:
1	IP
2	IP with trailing headers
3	Address Resoloution Protocol
4	Proteon HDLC
5	VAX Debugging Protocol (MIT)
10	Novell NetWare
11	Vianetix
12	PUP
13	Watstar protocol (University of Waterloo)
14	XNS
15	Diganostics
16	Echo protocol (link level)
17	Banyon Vines
20	DECnet (DEUNA Emulation)
21	Chaosnet
23	IEEE 802.2 or ISO 8802/2 Data Link
24	Reverse Address Resolution Protocol
29	TokenVIEW-10

Just because a protocol is on this list does not mean that there is
any implementation of it on ProNET.

Of these, protocols 1, 14, and 20 are the only ones that have ever
been seen in ARP packets to my knowledge.

For reference, the header is (one byte/line):

	destination hardware address
	source hardware address
	data link header version (2)
	data link header protocol number
	data link header reserved (0)
	data link header reserved (0)

Some protocols have been known to tuck stuff in the reserved fields.

Those who need a protocol number on ProNET-10/80 should contact me
(jas@proteon.com).