From: Chris Lewis \(chrlewis\) (chrlewis@cisco.com)
Date: Wed Sep 28 2005 - 14:20:43 GMT-3
As advised, CHAP uses a shared secret. This means what you set as a
password in the CLI for chap has to be the same on both ends for it to
work. This is not the case with PAP or EAP, where you canset different
passwords on each end.
Chris
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Mitchell, TJ
Sent: Wednesday, September 28, 2005 12:09 PM
To: Victor Cappuccio
Cc: ccielab@groupstudy.com
Subject: RE: ISDN Authentication Question
Can you elaborate more on this, I thought that CHAP passed the entire
password it's just encrypted?
Thanks
T.J. Mitchell
-----Original Message-----
From: Victor Cappuccio [mailto:cvictor@protokolgroup.com]
Sent: Wednesday, September 28, 2005 10:07 AM
To: Mitchell, TJ
Cc: ccielab@groupstudy.com
Subject: Re: ISDN Authentication Question
The One that passes the entire password is PAP in clear Text, CHAP only
passes the HASH of the password HTH
Mitchell, TJ wrote:
>I have a practice lab here asking me about this and I can't find the
>answer anywhere.
>
>Do any of these not pass the entire password across the link during the
>authentication process?
>
>
>
>Thanks
>
>
>
>T.J. Mitchell
>
>________________________________
>
>From: Bajo [mailto:bajoalex@gmail.com]
>Sent: Wednesday, September 28, 2005 9:37 AM
>To: Mitchell, TJ
>Cc: ccielab@groupstudy.com
>Subject: Re: ISDN Authentication Question
>
>
>
>Have tried only ppp chap and ppp pap. But here are more:
>
>
>
>R4(config-if)#ppp authentication ?
> chap Challenge Handshake Authentication Protocol (CHAP)
> eap Extensible Authentication Protocol (EAP)
> ms-chap Microsoft Challenge Handshake Authentication Protocol
>(MS-CHAP)
> ms-chap-v2 Microsoft CHAP Version 2 (MS-CHAP-V2)
> pap Password Authentication Protocol (PAP)
>
>
>
>
>
>On 9/28/05, Mitchell, TJ <tmitchell@allianttech.com> wrote:
>
>Guys -
>
>I have a question on ISDN authentication.
>
>What types of authentication is there for ISDN?
>
>
>
>I know the typical PPP CHAP and PAP, but what else is there?
>
>
>
>Thanks
>
>
>
>___________________________________________
>
>T.J. Mitchell
>
>Sr. Network Engineer, CCNA, CCDA, CCNP, CCDP
>
>
>
>Alliant Technologies, LLC
>
>Boston, MA 02108
>
>Cell: 508-868-6853
>
>tmitchell@allianttech.com
>
>www.allianttech.com
>
>_______________________________________________________________________
>Subscription information may be found at:
>http://www.groupstudy.com/list/CCIELab.html
>
>
>
>
>--
>Kind Regards,
>
>Bajo
>
>_______________________________________________________________________
>Subscription information may be found at:
>http://www.groupstudy.com/list/CCIELab.html
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