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
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