From: Khalid Nafie (knafie@xxxxxxxxxx)
Date: Tue May 08 2001 - 14:41:32 GMT-3
   
Hi Grant,
        Try to use the same password  for both usernames.
================================================
Yours,
Khaled Nafie
Network Engineer
Customer Services
MCSE,CCDP,CCNP VOCIE ACCESS
NCR Corporation, Kuwait
Mob.: +965-9872046
Tel : +965- 2412201, 2412203
Fax : +965-2413075
> ----------
> From:         Grant Patten[SMTP:gpatten@lucent.com]
> Reply To:     Grant Patten
> Sent:         Tuesday, May 08, 2001 8:12 PM
> To:   'ccielab@groupstudy.com'
> Subject:      CHAP Authentication
>
> I'm struggling to get a good understanding of how exactly CHAP
> Authentication works.  I think I'm missing something fundamental and
> hopefully one of you can help me out.  Thanks.
>
> When I use the configuration below, I get the following debug messages:
>
> 1d15h: BR0:1 PPP: Treating connection as a callout
> 1d15h: BR0:1 PPP: Phase is AUTHENTICATING, by both
> 1d15h: BR0:1 CHAP: Using alternate hostname ISDN2
> 1d15h: BR0:1 CHAP: O CHALLENGE id 14 len 26 from "ISDN2"
> 1d15h: BR0:1 CHAP: I CHALLENGE id 14 len 26 from "ISDN1"
> 1d15h: BR0:1 CHAP: Using alternate hostname ISDN2
> .d15h: BR0:1 CHAP: O RESPONSE id 14 len 26 from "ISDN2"
> 1d15h: BR0:1 CHAP: I FAILURE id 14 len 25 msg is "MD/DES compare failed"
>
>
> Here is the relevant portions of the configs I'm using on R1 and R2.  I
> changed the encrypted ppp chap password to what I actually set:
>
>
> R2
>
> hostname R2
> !
> !
> username ISDN1 password 0 CCIE
> !
> !
> interface BRI0
>  ip address 147.10.1.2 255.255.255.0
>  no ip directed-broadcast
>  encapsulation ppp
>  dialer map ip 147.10.1.1 name ISDN1 broadcast 8358661
>  dialer-group 1
>  isdn switch-type basic-ni
>  isdn spid1 0835866201
>  isdn spid2 0835866401
>  ppp authentication chap
>  ppp chap hostname ISDN2
>  ppp chap password cisco
>
> R1
> hostname R1
> !
> !
> username ISDN2 password 0 cisco
> !
> interface BRI0
>  ip address 147.10.1.1 255.255.255.0
>  no ip directed-broadcast
>  encapsulation ppp
>  dialer map ip 147.10.1.2 name ISDN2 broadcast
>  dialer-group 1
>  isdn switch-type basic-ni
>  isdn spid1 0835866101
>  isdn spid2 0835866301
>  ppp authentication chap
>  ppp chap hostname ISDN1
>  ppp chap password CCIE
> **Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
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