*BSD News Article 83949


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From: Luigi Rizzo <luigi@labinfo.iet.unipi.it>
Newsgroups: comp.unix.bsd.freebsd.misc
Subject: Re: ppp through telnet.
Date: Sat, 30 Nov 1996 22:00:21 +0100
Organization: Universita' di Pisa
Lines: 43
Message-ID: <Pine.BSF.3.91.961130215357.2859A-100000@labinfo.iet.unipi.it>
References: <01bbdeca$cab46280$1d9f09ce@win95.soncom.com> <32A01A7C.B13@www.play-hookey.com> <01bbdef9$22947c00$1d9f09ce@win95.soncom.com>
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In-Reply-To: <01bbdef9$22947c00$1d9f09ce@win95.soncom.com> 

On 30 Nov 1996, Patrick Sonnek wrote:

> > > I have a dumb question.
> > > 
> > > is it possible for a user to logon on to a shell account from a PC,
> telnet
> > > from that machine to my machine, and then to bring up ppp?
> > > 
> > > i.e.
> > >                         168.9.49.1                   206.9.159.17
> > > ____     phone line       ________       the net             ________
> > > | PC |--------------------------|  host    |===============|  ME      |
> > > |____|                          |_______|			|_______|
> > > 206.9.159.20 <-----------------------------PPP------------------>
> 
>      Dorm Room in	College host (no PPP)                 My host
>       Illinois		in Illinois			In Minnesota
> 
> 
> > > 
> > > will this work?, and how could I do it.
...
> Personally, I don't think what I'm asking can be done, but I thought I
> would run it past
> you experts.

I have done something like this in the past: machine A logs into
machine B using a dialup line, from there telnet to machine C, then a
PPP session is established between A and C. It worked, bu not very
reliably. I don't remember exactly if I used telnet or rlogin, and also
at that time -- 2.1R -- iijppp was unstable also on direct connections.
The problem is that (I think) you need an 8-bit clean path between
A and C; how to guarantee this, I am not sure.

	Luigi

====================================================================
Luigi Rizzo                     Dip. di Ingegneria dell'Informazione
email: luigi@iet.unipi.it       Universita' di Pisa
tel: +39-50-568533              via Diotisalvi 2, 56126 PISA (Italy)
fax: +39-50-568522              http://www.iet.unipi.it/~luigi/
====================================================================