Re: Snooping on PPP modem connection.

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#408

From: Paul Black
Date: Sun, 12 Apr 1998 00:00

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Ian Stirling <0000352FECBD.NO_UCE@mauve.demon.co.uk> wrote:
> 
> Anyone know how to take raw bytestreams, and produce a tcpdump-like
> dump of the packets going over a PPP connection? Preferably without
> having to write a PPP stack.
> I'm trying to reverse engineer the protocols used to talk to an online
> service, so I can make a linux client.
> It's currently running on windows.
> 
> I can get bytestreams easily, by making up the appropriate cables,
> to take RX/TX to two ports on another PC.
> OS I'm running on is linux, but a 95 solution would be fine.

You can download a program called tcplog which accesses RAW IP data.
It'd be easy to modify this to look at and dump the ports that you
are interested in.

Paul

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From: Paul Black <paul@darwin.demon.co.uk>
Subject: Re: Snooping on PPP modem connection.
Date: 1998/04/12
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