From: Mitchell, TJ (tmitchell@allianttech.com)
Date: Wed Sep 28 2005 - 15:12:06 GMT-3
Everyone -
I really gotta say your promptness to answer questions is unreal.
Then I guess the answer is CHAP authentication, it's just asking the
question in a different way as suggested as a trick question to make you
think and throw you off. Makes you think you really need to understand
the subject.
Thanks guys you are awesome with this stuff.
T.J. Mitchell
________________________________
From: Victor Cappuccio [mailto:cvictor@protokolgroup.com]
Sent: Wednesday, September 28, 2005 10:52 AM
To: Henk de Tombe
Cc: Bajo; Mitchell, TJ; ccielab@groupstudy.com
Subject: Re: ISDN Authentication Question
Cool Henk, thanks for the Update..
http://en.wikipedia.org/wiki/Extensible_Authentication_Protocol
Henk de Tombe wrote:
Hi,
I've looked in RFC 3748, and chapter 5.4 shows up with the following:
5.4. MD5-Challenge
Description
The MD5-Challenge Type is analogous to the PPP CHAP protocol
[RFC1994] (with MD5 as the specified algorithm). The Request
contains a "challenge" message to the peer. A Response MUST be
sent in reply to the Request. The Response MAY be either of Type
4 (MD5-Challenge), Nak (Type 3), or Expanded Nak (Type 254).
This would mean that EAP uses the same MD5 challenge algoritm as with
the
CHAP protocol, please correct me if I'm wrong!
ftp://ftp.rfc-editor.org/in-notes/rfc3748.txt
regards,
Henk
-----Oorspronkelijk bericht-----
Van: nobody@groupstudy.com [mailto:nobody@groupstudy.com] Namens Victor
Cappuccio
Verzonden: woensdag 28 september 2005 19:23
Aan: Bajo
CC: Mitchell, TJ; ccielab@groupstudy.com
Onderwerp: Re: ISDN Authentication Question
:)
I Think as CHAP as a big Blender :D AND PAP something like Putting IN --
Spanish Translation Fix Well
Share more I like them Much
Big Dogs Realy Like Me...
Jejeje look at the default-metric in EIGRP :D
Bajo wrote:
I always think of CHAP as "chopping" (cutting into pieces with
the MD5
knife) and PAP as "popping" (showing something up) ...hey a
quick
mnemonics :)
On 9/28/05, *Victor Cappuccio* <cvictor@protokolgroup.com
<mailto:cvictor@protokolgroup.com>
<mailto:cvictor@protokolgroup.com> > wrote:
Chek it out
http://www.cisco.com/warp/public/471/understanding_ppp_chap.html
<http://www.cisco.com/warp/public/471/understanding_ppp_chap.html>
<http://www.cisco.com/warp/public/471/understanding_ppp_chap.html>
http://www.cisco.com/warp/public/471/config-pap.html
HTH
Victor.
Mitchell, TJ wrote:
>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
<mailto:cvictor@protokolgroup.com>
<mailto:cvictor@protokolgroup.com> ]
>Sent: Wednesday, September 28, 2005 10:07 AM
>To: Mitchell, TJ
>Cc: ccielab@groupstudy.com <mailto:ccielab@groupstudy.com>
<mailto: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
<mailto:bajoalex@gmail.com> <mailto:bajoalex@gmail.com> ]
>>Sent: Wednesday, September 28, 2005 9:37 AM
>>To: Mitchell, TJ
>>Cc: ccielab@groupstudy.com <mailto:ccielab@groupstudy.com>
<mailto: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
<mailto:tmitchell@allianttech.com>
<mailto: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
<mailto:tmitchell@allianttech.com> <mailto:tmitchell@allianttech.com>
>>
>>www.allianttech.com <http://www.allianttech.com>
<http://www.allianttech.com>
>>
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