Path: utzoo!attcan!uunet!husc6!rutgers!ucsd!ucbvax!VAX.FTP.COM!jbvb
From: jbvb@VAX.FTP.COM (James Van Bokkelen)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: SLIP implementations
Message-ID: <8812281641.AA01211@vax.ftp.com>
Date: 28 Dec 88 16:41:36 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 24

More or less in the order they became available (at least in the order I
heard of them):
 
Free (source form, KA9Q is "no commercial use"):
	4bsd SLIP by Rick Adams (various versions, requires kernel rebuild)
	KA9Q by Phil Karn (DOS and maybe other little workstations)
	PC-IP from MIT/CMU/Harvard, for DOS PCs only.

Commercial:
	FTP Software's PC/TCP (applications & development for DOS PCs)
	cisco's terminal concentrator/gateway (many ports on a server)
	Encore's Annex terminal concentrator (ditto)
	Spider Systems' SysV Unix (source for OEMs, maybe sold other ways)
	Sun's PC/NFS (apps & libraries, also add-in modules for SunOS hosts)

This is all I am aware of, as of this moment.  As far as I know, they all
interoperate (I know that we can talk to the 4bsd, cisco, Encore and Spider
implementations).  Some vendors have added dial-in capability, but the 4bsd
version doesn't have it.  RFC 1055 documents the basic protocol, and has
no mechanism for dynamic address assignment at startup (thus the need for
dial-up extensions).

James VanBokkelen
FTP Software Inc.