Re: Dropping Callers

fnbt · ‎11-18-2004

We have a Cisco 3640 with a MICA-6DM for our users to dial in remotely.

It has been upgraded to run the 12.2(26) IOS.

After 15 minutes or so the call just drops regradless of activity. All of the call timers are set for much longer than that.

There have been some changes several minor (updates to IP addresses for services) and 1 major one upgrading the IOS from 11.3(10).

If the config is needed please let me know and I will put that up. I have no idea at this point what could be causing the issue.

sstudsdahl · ‎11-18-2004

This website may be able to help out in troubleshooting this problem. There are several utilities that can be used to get a better picture of what is going on. I would start with processing the modem log. That should decrypt the reason for the call be disconnected and give a good place to start from.

http://cosi-nms.sourceforge.net/cgitools/dr_mdm/

HTH

Steve

fnbt · ‎11-18-2004

Anything I should be looking for in the output from there, as I haven't really seen anything that stands out as an issue.

fnbt · ‎11-18-2004

[0](0x7F06) 3 ( 4.11%)

[0](0x8103) 1 ( 1.37%)

[0](0x8220) 41 ( 56.16%)

[0](0xDF00) 25 ( 34.25%)

[0](0xDF06) 3 ( 4.11%)

[1](0x7F06)[0] During call setup, CSR affected

[1](0x7F06)[2] Network indicated

[1](0x8103)[0] In data mode, received data flushed, CSR not affected

[1](0x8103)[1] Condition reported by DSP

[1](0x8103)[2] Too many retrains (S40) or speedshifts. Bad line or remote disconnect

[1](0x8220)[0] In data mode, received data flushed, CSR not affected

[1](0x8220)[1] Local EC condition

[1](0x8220)[2] Received DISC, normal LAPM termination

[1](0xDF00)[0] In data mode, transmitted data flushed, CSR not affected

[1](0xDF00)[2] Non-specific

[1](0xDF06)[0] In data mode, transmitted data flushed, CSR not affected

[1](0xDF06)[2] Network indicated

makchitale · ‎11-18-2004

Can you please post the running config?

sh run / sh ver / sh modem ver

Also can you post the output of "sh dialer asyn x" where x is the modem that has an active call onit.

Thanks,

Mak

fnbt · ‎11-19-2004

Running Config (minor edits)

!

version 12.2

service timestamps debug uptime

service timestamps log uptime

service password-encryption

!

hostname dial

!

boot system flash flash:c3640-d-mz.122-26.bin

clock timezone Indiana -5

ip subnet-zero

!

ip dhcp-server 10.0.x.x

ipx routing 12345678

async-bootp gateway 10.2.x.x

async-bootp dns-server 10.0.x.x

async-bootp nbns-server 10.0.x.x

isdn switch-type primary-dms100

!

controller T1 0/0

framing esf

linecode b8zs

pri-group timeslots 1-24

!

controller T1 0/1

framing esf

linecode b8zs

pri-group timeslots 1-24

!

interface Loopback0

ip address 10.255.x.x 255.255.255.0

ipx network 12345678

!

interface Loopback1

ip address 10.x.x.x 255.255.255.0

ipx network 12345678

!

interface FastEthernet0/0

ip address 10.2.x.x 255.255.255.0

ip helper-address 10.0.x.x

duplex auto

speed auto

ipx network 12345678

!

interface Serial0/0:23

ip unnumbered Loopback0

encapsulation ppp

dialer rotary-group 0

dialer-group 1

ipx network AAAAAAAA

isdn switch-type primary-dms100

isdn not-end-to-end 56

isdn incoming-voice modem

no cdp enable

!

interface Serial0/1:23

no ip address

encapsulation ppp

dialer pool-member 2

isdn switch-type primary-dms100

isdn incoming-voice modem

ppp authentication chap

!

interface Group-Async1

ip unnumbered FastEthernet0/0

ip helper-address 10.0.x.x

encapsulation ppp

dialer in-band

dialer idle-timeout 1800

async default routing

async mode interactive

ipx ppp-client Loopback0

peer default ip address dhcp

ppp authentication pap chap

group-range 33 56

!

interface Group-Async2

physical-layer async

no ip address

encapsulation slip

!

interface Dialer0

ip unnumbered FastEthernet0/0

encapsulation ppp

dialer in-band

dialer idle-timeout 1800

dialer-group 1

peer default ip address dhcp

ppp authentication pap chap callin

ppp multilink

!

interface Dialer1

ip unnumbered Loopback1

encapsulation ppp

dialer in-band

dialer map ip 10.x.x.x name

dialer-group 2

ppp authentication chap

ppp multilink

!

interface Dialer2

no ip address

no cdp enable

!

interface Dialer10

description Dial in for ISDN Router

ip unnumbered Loopback1

encapsulation ppp

dialer remote-name Rd

dialer hold-queue 10

dialer-group 1

no peer default ip address

ppp authentication chap

!

router eigrp 100

redistribute connected

network 10.0.0.0

auto-summary

!

ip default-gateway 10.2.x.x

ip classless

ip route 0.0.0.0 0.0.0.0 10.2.x.x

no ip http server

!

dialer-list 1 protocol ip permit

dialer-list 1 protocol ipx permit

dialer-list 1 protocol netbios permit

dialer-list 2 protocol ip permit

dialer-list 2 protocol ipx permit

!

ipx router eigrp 100

network AAAAAAAA

network BBBBBBBB

log-neighbor-changes

!

tacacs-server host 10.0.x.x single-connection

tacacs-server directed-request

tacacs-server key

!

line con 0

password

line 33 56

modem InOut

rotary 1

transport input telnet

autoselect during-login

autoselect ppp

line aux 0

transport input all

line vty 0 4

password

!

end

fnbt · ‎11-19-2004

Show Version:

Cisco Internetwork Operating System Software

IOS (tm) 3600 Software (C3640-D-M), Version 12.2(26), RELEASE SOFTWARE (fc2)

Compiled Sat 31-Jul-04 01:09 by eaarmas

Image text-base: 0x60008930, data-base: 0x60B78000

ROM: System Bootstrap, Version 11.1(20)AA2, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)

fnb-koko-dial uptime is 5 weeks, 4 days, 19 hours, 47 minutes

System returned to ROM by reload

System image file is "flash:c3640-d-mz.122-26.bin"

cisco 3640 (R4700) processor (revision 0x00) with 44032K/5120K bytes of memory.

Processor board ID 17882425

R4700 CPU at 100Mhz, Implementation 33, Rev 1.0

MICA-6DM Firmware: CP ver 2730 - 5/23/2001, SP ver 2730 - 5/23/2001.

Bridging software.

X.25 software, Version 3.0.0.

Primary Rate ISDN software, Version 1.1.

1 FastEthernet/IEEE 802.3 interface(s)

48 Serial network interface(s)

24 terminal line(s)

2 Channelized T1/PRI port(s)

DRAM configuration is 64 bits wide with parity disabled.

125K bytes of non-volatile configuration memory.

32768K bytes of processor board System flash (Read/Write)

Configuration register is 0x2102

Show Modem Version

Slot 1:MICA-6DM Firmware, Source - IOS

CP ver 2730 - 5/23/2001, CheckSum BCCEB316.

SP ver 2730 - 5/23/2001.

MICA 0: HW Version 1.0, Serial Number 15537939.

MICA 1: HW Version 1.0, Serial Number 15537381.

MICA 2: HW Version 1.0, Serial Number 15535926.

MICA 3: HW Version 1.0, Serial Number 15537930.

MICA 4: Not Installed.

fnbt · ‎11-19-2004

As38 - dialer type = IN-BAND ASYNC NO-PARITY

Idle timer (3600 secs), Fast idle timer (20 secs)

Wait for carrier (30 secs), Re-enable (15 secs)

Dialer state is data link layer up

Time until disconnect 3385 secs (rudyki)

Dial String Successes Failures Last DNIS Last status

I modified the timer to 3600 last night to try and see what that did...

It looks like the timer runs no matter what. That connection has a ping -t running on it and the disconect timer is going.

fnbt · ‎11-19-2004

I think I have it figured out.

The Ansych Interface did not have a dialer group attached, and was not finding any intresting traffic as a result to rest the timer.

I suppose the better question is why did it work before.