From: Ouellette, Tim (tim.ouellette@eds.com)
Date: Mon Dec 16 2002 - 22:45:37 GMT-3
try adding the following on the callback server
username r2 callback-dialstring 8358661 password xxxxxx
Because of the following command "dialer callback-server username" I
believe it looks into the user database for the callback number
Might also want to look and see if "ppp callback permit" has anything to do
with it. It's probably the username part just because of the way your class
calls the username lookup.
Let me know if it works.
Tim
-----Original Message-----
From: John Tafasi [mailto:johntafasi@yahoo.com]
Sent: Monday, December 16, 2002 4:32 AM
To: Cisco Group Study; ccielab
Subject: BR0:1 DDR: No callback negotiated
I have two isdn routers r2 (callback client) and r5 (callback server).
without callback configuration r2 will connect to r5 successfully. With the
callback configuration added, r5 will disconnect the call and will not
callback r2. Can some one figure out what is wrong with my configuration? I
have included configuration of both routers and the result of debug dialer
on r5. It seems to me that r2 is not negotiating callback.
R5-2503#show debug
Dial on demand:
Dial on demand events debugging is on
R5-2503#
2d11h: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
R5-2503#
Mar 3 11:05:34.703: BR0:1 DDR: No callback negotiated
Mar 3 11:05:34.703: BR0:1 DDR: disconnecting call
2d11h: %ISDN-6-DISCONNECT: Interface BRI0:1 disconnected from 8358661 r2,
call lasted 2 seconds
2d11h: %LINK-3-UPDOWN: Interface BRI0:1, changed state to down
R5-2503#
Mar 3 11:05:34.851: BR0:1 DDR: disconnecting call
R5-2503#
2d11h: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
R5-2503#
Mar 3 11:05:40.179: BR0:1 DDR: No callback negotiated
Mar 3 11:05:40.179: BR0:1 DDR: disconnecting call
2d11h: %ISDN-6-DISCONNECT: Interface BRI0:1 disconnected from 8358661 r2,
call lasted 4 seconds
2d11h: %LINK-3-UPDOWN: Interface BRI0:1, changed state to down
R5-2503#
Mar 3 11:05:40.331: BR0:1 DDR: disconnecting call
R5-2503#show run
hostname r5-2503
!
interface BRI0
ip address 10.10.10.2 255.255.255.0
ip access-group 101 in
encapsulation ppp
dialer callback-secure
dialer map ip 10.10.10.1 name r2 class eng broadcast 8358661
dialer-group 1
isdn switch-type basic-ni
isdn spid1 0835866201
isdn spid2 0835866401
cdapi buffers regular 0
cdapi buffers raw 0
cdapi buffers large 0
ppp callback accept
ppp authentication chap
ppp chap hostname r5
ppp multilink
!
!
map-class dialer eng
dialer callback-server username
---------------------------------------------
hostname r2-2516
!
interface Dialer1
ip address 10.10.10.1 255.255.255.0
no ip directed-broadcast
encapsulation ppp
dialer remote-name r5
dialer string 8358662
dialer pool 1
dialer-group 1
ntp broadcast
pulse-time 0
ppp callback request
ppp chap hostname r2
!
.
.
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