Path: utzoo!attcan!uunet!aplcen!samsung!b-tech!zeeff
From: zeeff@b-tech.ann-arbor.mi.us (Jon Zeeff)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: USER Level SLIP implementations
Keywords: SLIP, User-level
Message-ID: <P%L*_B#@b-tech.uucp>
Date: 19 Sep 90 14:00:28 GMT
References: <mt.653674889@cleo>
Distribution: comp
Organization: Branch Technology
Lines: 29

>Is it technically possible to have a user level implementation of SLIP
>under 4.3 BSD and its derivatives?

There is something called the tunnel driver that allows this.  I'd be 
interested in anyone who has slip or slfp user level code that works 
with this.  

From the README file:

This is the tunnel driver for routing IP packets over other networks.
In particular it can be used for rfc877 encapsualtion of IP packets
over X.25 - but the kernel level driver just delivers IP packets to
listening processes. The approximate steps for installation of the
driver are as follows.

     Julian Onions (jpo@cs.nott.ac.uk)
        Computer Science Department
        Nottingham University
        Nottingham, NG7 2RD
        ENGLAND

        +44 602 506101 x3595
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-- 
Jon Zeeff (NIC handle JZ)	 zeeff@b-tech.ann-arbor.mi.us