From: Nick Shah (nshah@xxxxxxxxxxxxxx)
Date: Sat Mar 23 2002 - 19:10:19 GMT-3
hmm...on one router you have got ppp multilink configured on the client
side, and not on the server, This *may* cause dialer callback-secure to
reject the call as improperly configured. try removing ppp multilink.
If that still doesnt resolve the issue, I would do a debug on ppp nego. &
authentication and see that r2/r3 is getting authenticated and negotiating
call back parameters...
hth
Nick
-----Original Message-----
From: Lab Candidate <labccie@yahoo.com>
To: Ahmed Mamoor Amimi <mamoor@ieee.org>; ccielab@groupstudy.com
<ccielab@groupstudy.com>
Date: Saturday, 23 March 2002 8:47
Subject: Re: ISDN callback scenario
>I took out dialer callback secure and it still desn't work giving the same
error message "callback
>is not configured for user r2". But it works perfectly when I changed it to
caller ID callback.
>Any ider what's going on here?
>
>
>--- Ahmed Mamoor Amimi <mamoor@ieee.org> wrote:
>> first try this with the minimum config.
>> remove the call-back secure then try.
>>
>> i was wondering if call-back works with multilink.. !! let me know ..
>>
>> -Mamoor
>>
>>
>> ----- Original Message -----
>> From: Lab Candidate <labccie@yahoo.com>
>> To: <ccielab@groupstudy.com>
>> Sent: Saturday, March 23, 2002 12:59 PM
>> Subject: ISDN callback scenario
>>
>>
>> > r2 and r3 are setup with basic ISDN callback as below.
>> > r2 callback client, r3 callback server.
>> > everything is configured as CCO example, but when r2 calls r3
>> > when r2 pings r3, r2 calls and disconnects, and waiting for r3.
>> > but r3 never calls back.
>> > r3 debug says "callback is not configured for user r2"
>> > debug output and r2/r3 configs attached below.
>> > what's the problem here please?
>> >
>> > r3#
>> > 2d05h: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up
>> > 2d05h: BR0/0:1 DDR: No callback configured for user r2.
>> > 2d05h: BR0/0:1 DDR: disconnecting call
>> > 2d05h: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to 2588 r2
>> > 2d05h: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to down
>> > 2d05h: BR0/0:1 DDR: disconnecting call
>> >
>> > ===============r2==================
>> > version 12.2
>> > service timestamps debug uptime
>> > service timestamps log uptime
>> > no service password-encryption
>> > !
>> > hostname r2
>> > !
>> > no logging buffered
>> > !
>> > username r3 password 0 cisco
>> > ip subnet-zero
>> > !
>> > !
>> > interface BRI0/0
>> > ip address 40.40.40.1 255.255.255.0
>> > encapsulation ppp
>> > dialer map snapshot 1 name r3 broadcast 2589
>> > dialer map ip 40.40.40.2 name r3 broadcast 2589
>> > dialer load-threshold 50 either
>> > dialer-group 1
>> > isdn switch-type basic-ni
>> > isdn spid1 2588 2588
>> > isdn spid2 3588 3588
>> > no cdp enable
>> > ppp callback request
>> > ppp authentication chap
>> > ppp multilink
>> > !
>> > dialer-list 1 protocol ip permit
>> > !
>> > !
>> > line con 0
>> > exec-timeout 0 0
>> > line aux 0
>> > line vty 0 4
>> > password tts
>> > no login
>> > !
>> > end
>> >
>> > r2#
>> >
>> >
>> > ============r3=============
>> > version 12.2
>> > service timestamps debug uptime
>> > service timestamps log uptime
>> > no service password-encryption
>> > !
>> > hostname r3
>> > !
>> > !
>> > username r2 password 0 cisco
>> > ip subnet-zero
>> > !
>> > isdn switch-type basic-ni
>> > !
>> > interface BRI0/0
>> > ip address 40.40.40.2 255.255.255.0
>> > encapsulation ppp
>> > dialer callback-secure
>> > dialer map snapshot 1 name r2 broadcast 2588
>> > dialer map ip 40.40.40.1 name r2 class dc1 broadcast 2588
>> > dialer-group 1
>> > isdn switch-type basic-ni
>> > isdn spid1 2589 2589
>> > isdn spid2 3589 3589
>> > snapshot server 5 dialer
>> > ppp callback accept
>> > ppp authentication chap
>> > !
>> > map-class dialer dc1
>> > dialer callback-server username
>> >
>> > dialer-list 1 protocol ip permit
>> > !
>> > line con 0
>> > line aux 0
>> > line vty 0 4
>> > password tts
>> > no login
>> > !
>> > ntp master 1
>> > end
>> >
>> > r3#
>> >
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