trouble with external analog modem

sergeb_kaam · ‎10-06-2004

Hi,

I have cisco 2610xm as access server with external analog modem (hayes accura 336 message modem) in aux ports but i can dial. When i debug i have the following :

makchitale · ‎10-06-2004

Do you mean you CANNOT dial? The configs look ok, can you capture outputs for the following debugs:

deb dialer event/ deb chat / deb modem / deb ppp nego.

Thanks, Mak

sergeb_kaam · ‎10-06-2004

thanks,Mak.

here is what you ask:

makchitale · ‎10-06-2004

From the debugs we see that the remote modem is not responsing, the router is initiating a callout:

*Mar 1 00:36:19.848: As65 DDR: Attempting to dial 0805010143

*Mar 1 00:36:19.848: CHAT65: Attempting async line dialer script

*Mar 1 00:36:19.848: CHAT65: Dialing using Modem script: dialout & System scrip

t: none

*Mar 1 00:36:19.848: CHAT65: process started

*Mar 1 00:36:19.848: CHAT65: Asserting DTR

*Mar 1 00:36:19.848: CHAT65: Chat script dialout started

*Mar 1 00:36:19.852: CHAT65: Sending string: AT

*Mar 1 00:36:19.852: CHAT65: Expecting string: OK

*Mar 1 00:36:24.852: CHAT65: Timeout expecting: OK

*Mar 1 00:36:24.852: CHAT65: Chat script dialout finished, status = Connection timed out; remote host not responding <====

*Mar 1 00:36:24.852: As65 DDR: disconnecting call

Ensure the number you are calling is correct.

Try calling your cell phone or a phone near by & see if you hear the phone ring.

Thanks, Mak

sergeb_kaam · ‎10-07-2004

Thanks,Mak.Please help.I change the phone number but still no dial.

I have the following now :

router3#telnet 172.16.0.7

Trying 172.16.0.7 ...

*Mar 1 15:53:00.121: As65 DDR: rotor dialout [priority]

*Mar 1 15:53:00.121: As65 DDR: Dialing cause ip (s=172.16.0.244, d=172.16.0.7)

*Mar 1 15:53:00.121: As65 DDR: Attempting to dial 0633729567

*Mar 1 15:53:00.121: CHAT65: Attempting async line dialer script

*Mar 1 15:53:00.121: CHAT65: Dialing using Modem script: dialout & System scrip

t: none

*Mar 1 15:53:00.125: CHAT65: process started

*Mar 1 15:53:00.125: CHAT65: Asserting DTR

*Mar 1 15:53:00.125: TTY65: Set DTR to 1

*Mar 1 15:53:00.125: CHAT65: Chat script dialout started

*Mar 1 15:53:00.125: CHAT65: Sending string: AT

*Mar 1 15:53:00.125: CHAT65: Expecting string: OK

*Mar 1 15:53:05.125: CHAT65: Timeout expecting: OK

*Mar 1 15:53:05.125: CHAT65: Chat script dialout finished, status = Connection

timed out; remote host not responding

*Mar 1 15:53:05.125: TTY65: Line reset by "Async dialer"

*Mar 1 15:53:05.125: As65 DDR: disconnecting call

*Mar 1 15:53:05.125: TTY65: Modem: (unknown)->HANGUP

*Mar 1 15:53:05.125: TTY65: no timer type 0 to destroy

*Mar 1 15:53:05.125: TTY65: no timer type 1 to destroy

*Mar 1 15:53:05.125: TTY65: no timer type 3 to destroy

*Mar 1 15:53:05.125: TTY65: no timer type 4 to destroy

*Mar 1 15:53:05.125: TTY65: no timer type 2 to destroy

*Mar 1 15:53:05.486: TTY65: dropping DTR, hanging up

*Mar 1 15:53:05.486: TTY65: Set DTR to 0

*Mar 1 15:53:05.486: tty65: Modem: HANGUP->IDLE

*Mar 1 15:53:07.497: TTY65: restoring DTR

*Mar 1 15:53:07.497: TTY65: Set DTR to 1

*Mar 1 15:53:09.127: Di65: No free dialer - starting fast idle timer

*Mar 1 15:53:20.126: As65 DDR: re-enable timeout

*Mar 1 15:53:20.126: As65 DDR: Attempting to dial 0033320273825

*Mar 1 15:53:20.126: CHAT65: Attempting async line dialer script

*Mar 1 15:53:20.126: CHAT65: Dialing using Modem script: dialout & System scrip

t: none

*Mar 1 15:53:20.126: CHAT65: process started

*Mar 1 15:53:20.126: CHAT65: Asserting DTR

*Mar 1 15:53:20.126: TTY65: Set DTR to 1

*Mar 1 15:53:20.126: CHAT65: Chat script dialout started

*Mar 1 15:53:20.126: CHAT65: Sending string: AT

*Mar 1 15:53:20.130: CHAT65: Expecting string: OK

*Mar 1 15:53:21.127: Di65: No free dialer - starting fast idle timer

*Mar 1 15:53:25.130: CHAT65: Timeout expecting: OK

*Mar 1 15:53:25.130: CHAT65: Chat script dialout finished, status = Connection

timed out; remote host not responding

*Mar 1 15:53:25.130: TTY65: Line reset by "Async dialer"

*Mar 1 15:53:25.130: As65 DDR: disconnecting call

*Mar 1 15:53:25.130: TTY65: Modem: (unknown)->HANGUP

*Mar 1 15:53:25.130: TTY65: no timer type 0 to destroy

*Mar 1 15:53:25.130: TTY65: no timer type 1 to destroy

*Mar 1 15:53:25.130: TTY65: no timer type 3 to destroy

*Mar 1 15:53:25.130: TTY65: no timer type 4 to destroy

*Mar 1 15:53:25.130: TTY65: no timer type 2 to destroy

*Mar 1 15:53:25.530: TTY65: dropping DTR, hanging up

*Mar 1 15:53:25.530: TTY65: Set DTR to 0

*Mar 1 15:53:25.530: tty65: Modem: HANGUP->IDLE

*Mar 1 15:53:27.542: TTY65: restoring DTR

*Mar 1 15:53:27.542: TTY65: Set DTR to 1

*Mar 1 15:53:40.130: As65 DDR: re-enable timeout

% Connection timed out; remote host not responding

what means "No free dialer - starting fast idle timer"?

Thanks.

tepatel · ‎10-08-2004

Actually, the router is not able to talk to modem. so whe it sends AT command, its not getting OK from modem.

Now remove "dialer pool-mem 20" from the async65 and remove "interface dialer 65". Now configure the interface async 65 like following

interface Async65

ip unnumbered FastEthernet0/0

encapsulation ppp

dialer in-band

dialer idle-timeout 900

dialer string 0805010143

dialer string 0320281282

dialer-group 1

no cdp enable

async default routing

async mode interactive

!

ip classless

ip route 0.0.0.0 0.0.0.0 Async65

ip route 172.16.0.6 255.255.255.255 Async65

ip route 172.16.0.7 255.255.255.255 Async65

Also enter following command under the line 65

line 65

modem autoconfigure discovery

After that issue "clear line 65". That will force router to detect a modem. After that try to dialout and see the results,

zahmed · ‎10-08-2004

Reverse telnet into the modem (telnet 172.16.0.244 2065) and see if you get an OK back from your Hayes when you type in AT. If you do , go ahead and initiate a manual dial by doing an "atdt 0633729567". If you do not see your modem connecting to the other side, its probably that modem which is at fault. While in the reverse telnet mode it may also help to provide your Hayes modem a good init string like : &FS0=1&Q9&C1&D3 .

Check the following for more on that :

ASYNCHRONOUS SERIAL AND MODEM COMMUNICATIONS

Modem-Router Connection Guide

http://www.cisco.com/en/US/tech/tk801/tk36/technologies_tech_note09186a008009428b.shtml

~Zulfi

sergeb_kaam · ‎11-04-2004

Thanks Zulfi.I changed my modem.Now i have a WIC-2AM.Here is my new config :

router3#sh run

Building configuration...

Current configuration : 1553 bytes

!

version 12.2

no service pad

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

service udp-small-servers

service tcp-small-servers

!

hostname router3

!

logging buffered 48000 debugging

!

ip subnet-zero

no ip source-route

!

no ip domain-lookup

!

isdn switch-type basic-net3

chat-script dialout "" "AT" OK "ATDT\T" TIMEOUT 30 CONNECT \C

!

interface FastEthernet0/0

ip address 172.16.0.244 255.255.255.0

no ip mroute-cache

no keepalive

shutdown

duplex auto

speed auto

no cdp enable

!

interface BRI1/0

no ip address

shutdown

isdn switch-type basic-net3

!

interface BRI1/1

no ip address

shutdown

isdn switch-type basic-net3

!

interface BRI1/2

no ip address

shutdown

isdn switch-type basic-net3

!

interface BRI1/3

no ip address

shutdown

isdn switch-type basic-net3

!

interface Async1

ip unnumbered FastEthernet0/0

encapsulation ppp

dialer in-band

dialer idle-timeout 900

dialer string 00805010142

dialer-group 1

async default routing

async mode interactive

no peer default ip address

no fair-queue

!

interface Async2

no ip address

!

ip classless

ip route 172.16.0.0 255.255.255.0 Async1

no ip http server

ip pim bidir-enable

!

access-list 1 permit 172.16.0.0 0.0.0.255

dialer-list 1 protocol ip permit

!

line con 0

line 1

script dialer dialout

modem InOut

transport input all

transport output pad v120 telnet rlogin udptn

autoselect ppp

stopbits 1

speed 115200

flowcontrol hardware

line 2

stopbits 1

speed 115200

line aux 0

line vty 0 4

login

!

end

When i debug i have :

router3#telnet 172.16.0.171

Trying 172.16.0.171 ... Modem Registers - IMR:0x0 LED:0x0 RstCntrl:0x0 MSR:0xFF

*Mar 15 23:25:56.404: As1 DDR: place call

*Mar 15 23:25:56.404: As1 DDR: Dialing cause ip (s=172.16.0.244, d=172.16.0.171)

*Mar 15 23:25:56.404: As1 DDR: Attempting to dial 00805010142

*Mar 15 23:25:56.404: CHAT1: Attempting async line dialer script

*Mar 15 23:25:56.408: CHAT1: Dialing using Modem script: dialout & System script

: none

*Mar 15 23:25:56.408: CHAT1: process started

*Mar 15 23:25:56.408: CHAT1: Asserting DTR

*Mar 15 23:25:56.408: CHAT1: Chat script dialout started

*Mar 15 23:25:56.408: CHAT1: Sending string: AT

*Mar 15 23:25:56.408: CHAT1: Expecting string: OK

*Mar 15 23:25:56.412: CHAT1: Completed match for expect: OK

*Mar 15 23:25:56.412: CHAT1: Sending string: ATDT\T<00805010142>

*Mar 15 23:25:56.412: CHAT1: Expecting string: CONNECT

*Mar 15 23:26:26.414: CHAT1: Chat script dialout finished, status = Connection t

imed out; remote host not responding

*Mar 15 23:26:26.414: TTY1: Line reset by "Async dialer"

*Mar 15 23:26:26.414: As1 DDR: disconnecting call

*Mar 15 23:26:26.414: TTY1: Modem: (unknown)->HANGUP

*Mar 15 23:26:26.414: TTY1: no timer type 0 to destroy

*Mar 15 23:26:26.414: TTY1: no timer type 1 to destroy

*Mar 15 23:26:26.414: TTY1: no timer type 3 to destroy

*Mar 15 23:26:26.414: TTY1: no timer type 4 to destroy

*Mar 15 23:26:26.414: TTY1: no timer type 2 to destroy

*Mar 15 23:26:27.191: TTY1: dropping DTR, hanging up

*Mar 15 23:26:27.191: tty1: Modem: HANGUP->IDLE

*Mar 15 23:26:27.203: Modem (0/0) DCD UnAsserted

*Mar 15 23:26:27.203: Modem (0/0) CTS UnAsserted

*Mar 15 23:26:27.387: Modem (0/0) DCD Asserted

*Mar 15 23:26:27.387: Modem (0/0) CTS UnAsserted

*Mar 15 23:26:29.202: TTY1: restoring DTR

*Mar 15 23:26:30.208: TTY1: DSR was dropped

*Mar 15 23:26:30.208: TTY1: Quickly dropping DTR

*Mar 15 23:26:30.208: tty1: Modem: READY->HASPROC

*Mar 15 23:26:31.209: TTY1: restoring DTR

I dial well but still have message : Connection t

imed out; remote host not responding

What wrong ?

Thanks