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Re: [cat-users] Windows XP SP3 and MS-CHAPV2


Chronological Thread 
  • From: Stefan Winter <stefan.winter AT restena.lu>
  • To: "Christian, Andrew W." <andris AT nerc.ac.uk>
  • Cc: "cat-users AT geant.net" <cat-users AT geant.net>
  • Subject: Re: [cat-users] Windows XP SP3 and MS-CHAPV2
  • Date: Wed, 10 Jul 2013 13:48:40 +0200
  • List-archive: <https://mail.geant.net/mailman/private/cat-users/>
  • List-id: "The mailing list for users of the eduroam Configuration Assistant Tool \(CAT\)" <cat-users.geant.net>

Hello,

> I have a quick query with regard to eduroam CAT and Windows XP SP3. I’ve
> made a first attempt at creating and eduroam CAT installer but it says
> that windows XP SP3 is “Not supported by CAT” or at least for this
> authentication type.

That's correct; the Windows XP API for network configuration is not rich
enough for an external installer to be able to configure all EAP
properties automatically - but only for the built-in EAP types, i.e. PEAP.

> Is this a limitation of CAT/XP SP3 or have I misconfigured something? I
> know this auth type works when manually configured in XP. Is there
> anything I can do?

It's the combination of PEAP-MSCHAPv2 and Windows XP which does not
work. If your RADIUS server also supports TTLS-PAP, just mark it as such
in CAT, and then you'll also get a downloadable installer for Windows XP.

And as you can see, PEAP-MSCHAPv2 also works just fine on Windows Vista
and up.

Other than that, there is little we can do; your best option if you want
to support PEAP-MSCHAPv2 on Windows XP SP3 is either to provide your
users with detailed step-by-step instructions for manual configuration,
or you could try "su1x" which (AFAIK) requires you, the admin, to
configure an XP machine yourself and then export some binary blob which
can subsequently be used for installation on end-user devices.

And just as a side-note... April 2014 is the final end-of-support date
for Windows XP by Microsoft. In CAT, we wondered how much effort we
should put into a dying OS, and decided not to investigate further how
PEAP could possibly be automated besides the API on Windows XP. Your
mileage - or better: willingness to support legacy OSes - may vary.

Greetings,

Stefan Winter


--
Stefan WINTER
Ingenieur de Recherche
Fondation RESTENA - Réseau Téléinformatique de l'Education Nationale et
de la Recherche
6, rue Richard Coudenhove-Kalergi
L-1359 Luxembourg

Tel: +352 424409 1
Fax: +352 422473

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