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Date:      Mon, 08 Jun 1998 13:24:50 +0200
From:      "IBS / Andre Oppermann" <andre@pipeline.ch>
To:        Andreas Klemm <aklemm@hightek.com>
Cc:        isp@FreeBSD.ORG
Subject:   Re: how does PPP CHAP work ?
Message-ID:  <357BCA02.2F008019@pipeline.ch>
References:  <19980608115605.21479@hightek.com> <357BB8B1.55C43D5@pipeline.ch> <19980608125031.00463@hightek.com>

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Andreas Klemm wrote:
> 
> On Mon, Jun 08, 1998 at 12:10:57PM +0200, IBS / Andre Oppermann wrote:
> > Andreas Klemm wrote:
> > No. You have two problems:
> 
> Three ? ;-)

Hmm... sometimes I'm a sales person...

> > 1. PAP passwords are in clear text
> >
> > 2. CHAP is not CHAP, there is one CHAP standard and MS-CHAP
> >    Please read the discussion in Brians newest userland-ppp
> >
> > 3. CHAP passwords need special handling on the RADIUS server
> >    (Challenge Handshake Auth Protocol)
> 
> Which special handling on the Radius Server ? Could you please
> be more verbose on this ?

http://www.merit.edu/aaa/docs/radius-desc.txt

http://www.merit.edu/aaa/docs/rfc2138.txt @2.2

> > > A collegue of mine claims, that it would'nt be possible, because
> > > CHAP would use a two way handshake, that means, our access router
> > > would have to authenticate itself with username and password on
> > > the client access router.
> >
> > No, that depends on your configuration.
> 
> On the access server or radius or both ?

On the RADIUS server.

-- 
Andre Oppermann

CEO / Geschaeftsfuehrer
Internet Business Solutions Ltd. (AG)
Hardstrasse 235, 8005 Zurich, Switzerland
Fon +41 1 277 75 75 / Fax +41 1 277 75 77
http://www.pipeline.ch    ibs@pipeline.ch

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