Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!ulysses!smb
From: smb@ulysses.homer.nj.att.com (Steven M. Bellovin)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: Implementing TCP/IP outside of UNIX kernel?
Message-ID: <11395@ulysses.homer.nj.att.com>
Date: 1 Apr 89 00:52:49 GMT
References: <8903301431.AA19142@TIS.COM>
Organization: AT&T Bell Laboratories, Murray Hill
Lines: 6

A number of years ago, 3Com marketed a product called UNET, an implementation
of TCP/IP that had IP in the kernel, but TCP in user space on UNIX systems.
It ran on V7, 4.1bsd, and derivatives; I (among others, I think) ported it
to System V of various flavors.  Among the debts the Internet community
owes to this implementation is SLIP; Rick Adams' original SLIP was
designed to be compatible with UNET's equivalent.