03-27-2003 10:08 PM - edited 03-02-2019 06:13 AM
I am facing typical problem with callback.On one of client callback was working fine but the day they asked telephone exchange (India) to enable Caller ID facility on their telephone line ,it stopped working .It is like this- first user get verified and then disconnects and then callback happens and will ask for callback number ,then router callback too .Uptill here everything is fine,but once handshaking is happening ,modem gets disconnected.
Do i need to set something extra on router?
Note: Same client works fine with telephone line without Called ID facility.
thanks
03-27-2003 10:31 PM
Hope u can get the outputs of debug isdn q931 and debug ppp negotiation for further troubleshooting.
03-27-2003 11:56 PM
module on router 2610 is NM-16AM. Its normal telephone line not an ISDN line.
03-28-2003 09:04 PM
There will be no effect of callerID on a router 2610. I think 2610 may have been configured for Async PPP callback.
So we need to know running config from 2610 and with following debug when call comes in to that and 2610 callback
debug dialer
debug modem
debug callback
debug chat
Here is the url for sample config for async callback
04-06-2003 11:59 PM
Running-config
******************************
rtr-2600#sh run
Building configuration...
Current configuration:
!
! Last configuration change at 13:34:20 UTC Sat Apr 5 2003 by
! NVRAM config last updated at 10:41:10 UTC Thu Apr 3 2003 by
!
version 12.0
service exec-callback
service timestamps debug datetime
service timestamps log datetime
service password-encryption
!
hostname rtr-2600
!
logging buffered 4096 debugging
aaa new-model
aaa authentication login default local
aaa authentication ppp default if-needed local
aaa authorization network default local
enable secret 5 xxxx
enable password 7 xxxxx
!
username min password 7 xxxx
username max callback-dialstring "" password xxxx
ip subnet-zero
ip domain-name
ip name-server 172.17.0.45
ip name-server 172.17.0.2
async-bootp dns-server 172.17.0.45 172.17.0.2
async-bootp nbns-server 172.17.0.2
chat-script mod ABORT ERROR ABORT BUSY "" "AT" OK "ATDT \T" TIMEOUT 30 CONNECT \c
chat-script offhook "" "ATH1" OK \c
!
!
!
interface Ethernet0/0
description ######### THIS IS CONNECTED TO LAN #######
ip address 172.17.1.10 255.255.252.0
no ip directed-broadcast
!
interface Group-Async1
description ##### THIS IS FOR DIAL-UP ########
bandwidth 1024
ip unnumbered Ethernet0/0
no ip directed-broadcast
encapsulation ppp
async default routing
async mode interactive
peer default ip address pool addr-pool
no cdp enable
ppp callback accept
ppp authentication chap pap
group-range 33 48
!
ip local pool addr-pool 192.168.25.1 192.168.25.25
ip classless
ip route 0.0.0.0 0.0.0.0 172.17.1.110
ip route 172.17.4.0 255.255.252.0 172.17.3.254
ip http server
!
logging trap debugging
logging 172.17.0.10
access-list 1 permit any
dialer-list 1 protocol ip permit
dialer-list 1 protocol ipx permit
snmp-server community xxxx RO
snmp-server community xxxx RW
!
line con 0
exec-timeout 0 0
transport input none
line 33 48
no flush-at-activation
autoselect during-login
autoselect ppp
script modem-off-hook offhook
script callback mod
modem InOut
transport input all
line aux 0
line vty 0 4
password 7 xxxxx
!
ntp master
end
rtr-2600#
****************************************************
Debug is
************************
Apr 5 13:53:11: Modem 1/0 Mcom: in modem state 'Dialing/Answering'
Apr 5 13:53:11: Modem 1/0 Mcom: in modem state 'Incoming ring'
Apr 5 13:53:12: Modem 1/0 Mcom: in modem state 'Incoming ring'
Apr 5 13:53:14: Modem 1/0 Mcom: in modem state 'Waiting for Carrier'
Apr 5 13:53:25: Modem 1/0 Mcom: Received unknown message 0x10, len=0
Apr 5 13:53:25: Modem 1/0 Mcom: in modem state 'Connected'
Apr 5 13:53:25: Modem 1/0 Mcom: CONNECT at 24000/26400(Tx/Rx), V34, LAPM, V42bis, Answer
Apr 5 13:53:25: TTY33: DSR came up
Apr 5 13:53:25: tty33: Modem: IDLE->READY
Apr 5 13:53:25: TTY33: EXEC creation
Apr 5 13:53:25: TTY33: set timer type 10, 30 seconds
Apr 5 13:53:26: TTY33: Autoselect(2) sample 7E
Apr 5 13:53:26: TTY33: Autoselect(2) sample 7EFF
Apr 5 13:53:26: TTY33: Autoselect(2) sample 7EFF7D
Apr 5 13:53:26: TTY33: Autoselect(2) sample 7EFF7D23
Apr 5 13:53:26: TTY33 Autoselect cmd: ppp negotiate
Apr 5 13:53:26: TTY33: EXEC creation
Apr 5 13:53:26: TTY33: create timer type 1, 600 seconds
Apr 5 13:53:26: TTY33: destroy timer type 1 (OK)
Apr 5 13:53:26: TTY33: destroy timer type 0
Apr 5 13:53:26: Modem 1/0 Mcom: switching to PPP mode
Apr 5 13:53:26: Modem 1/0 Mcom: PPP escape map: Tx map = FFFFFFFF, Rx map = 0
Apr 5 13:53:26: %LINK-3-UPDOWN: Interface Async33, changed state to up
Apr 5 13:53:28: Modem 1/0 Mcom: PPP escape map: Tx map = A0000, Rx map = 0
Apr 5 13:53:29: %LINEPROTO-5-UPDOWN: Line protocol on Interface Async33, changed state to up
Apr 5 13:53:36: TTY33 Callback user dialstring 25784 from PPP negotiation
Apr 5 13:53:36: TTY33 Callback PPP process creation
Apr 5 13:53:36: As33 AAA/ACCT: Using PPP accounting list ""
Apr 5 13:53:36: TTY33 Callback process initiated, user: dialstring 25784
Apr 5 13:53:37: Modem 1/0 Mcom: in modem state 'Disconnecting'
Apr 5 13:53:37: Modem 1/0 Mcom: DISCONNECT, duration = 00:00:13, reason (0xE) Remote Link Disc
Apr 5 13:53:37: %LINEPROTO-5-UPDOWN: Line protocol on Interface Async33, changed state to down
Apr 5 13:53:37: TTY33: Async Int reset: Dropping DTR
Apr 5 13:53:38: Modem 1/0 Mcom: in modem state 'Idle'
Apr 5 13:53:38: Modem 1/0 Mcom: PPP escape map: Tx map = FFFFFFFF, Rx map = 0
Apr 5 13:53:39: %LINK-5-CHANGED: Interface Async33, changed state to reset
Apr 5 13:53:42: Modem 1/0 Mcom: switching to character mode
Apr 5 13:53:42: TTY33 Callback forced wait = 4 seconds
Apr 5 13:53:44: %LINK-3-UPDOWN: Interface Async33, changed state to down
Apr 5 13:53:46: CHAT33: Matched chat script offhook to string offhook
Apr 5 13:53:46: CHAT33: Asserting DTR
Apr 5 13:53:46: CHAT33: Chat script offhook started
Apr 5 13:53:46: CHAT33: Sending string: ATH1
Apr 5 13:53:46: CHAT33: Expecting string: OK
Apr 5 13:53:47: CHAT33: Completed match for expect: OK
Apr 5 13:53:47: CHAT33: Sending string: \c
Apr 5 13:53:47: CHAT33: Chat script offhook finished, status = Success
Apr 5 13:53:47: CHAT33: Matched chat script mod to string mod
Apr 5 13:53:47: CHAT33: Asserting DTR
Apr 5 13:53:47: CHAT33: Chat script mod started
Apr 5 13:53:47: CHAT33: Sending string: AT
Apr 5 13:53:47: CHAT33: Expecting string: OK
Apr 5 13:53:47: CHAT33: Completed match for expect: OK
Apr 5 13:53:47: CHAT33: Sending string: ATDT \T<25784>
Apr 5 13:53:47: CHAT33: Expecting string: CONNECT
Apr 5 13:53:47: Modem 1/0 Mcom: in modem state 'Dialing/Answering'
Apr 5 13:54:04: Modem 1/0 Mcom: in modem state 'Waiting for Carrier'
Apr 5 13:54:17: CHAT33: Timeout expecting: CONNECT
Apr 5 13:54:17: CHAT33: Chat script mod finished, status = Connection timed out; remote host not responding
Apr 5 13:54:17: TTY33 Callback process chat script fail status=Connection timed out; remote host not responding
Apr 5 13:54:17: TTY33: Line reset by "Callback Process"
Apr 5 13:54:17: TTY33: Modem: READY->HANGUP
Apr 5 13:54:17: TTY33: destroy timer type 0
Apr 5 13:54:17: TTY33: destroy timer type 1
Apr 5 13:54:17: TTY33: destroy timer type 3
Apr 5 13:54:17: TTY33: destroy timer type 4
Apr 5 13:54:17: TTY33: destroy timer type 2
Apr 5 13:54:18: TTY33: dropping DTR, hanging up
Apr 5 13:54:18: tty33: Modem: HANGUP->IDLE
Apr 5 13:54:18: Modem 1/0 Mcom: in modem state 'Disconnecting'
Apr 5 13:54:18: Modem 1/0 Mcom: DISCONNECT, duration = 00:00:00, reason (0x9) DTR Drop
Apr 5 13:54:19: Modem 1/0 Mcom: in modem state 'Idle'
Apr 5 13:54:21: TTY33: restoring DTR
03-27-2003 10:39 PM
if the router's modul can do that??
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide