04-12-2002 11:14 AM - edited 03-01-2019 09:16 PM
I have a unique dial-up setup for a remote LAN. My LAN consists of Aironet wireless products and a Cisco1602 R router. This LAN is not a standard LAN as it has no PC connected to it. The host stations consist of GPS devices and Lantronix IP servers. The GPS devices send data ever 10 seconds via the WLAN to my NOC. The router connects to the Internet via a Dial-up line. My problem is, that my router keeps disconnecting. Most of the time it will reconnect but on a few occasions it has had to be touched my a remote operator (myself) via telnet or consol to get it to reconnect.
Why does it keep disconnecting?
Debug modem and debug dialer outputs
01:06:59: TTY0: timer type 1 expired
01:06:59: TTY0: Exec-timeout expired
01:06:59: TTY0: destroy timer type 1
01:06:59: TTY0: Line reset by "Exec"
01:07:00: TTY0: Modem: (unknown)->READY
01:07:00: TTY0: destroy timer type 0
01:07:00: TTY0: no timer type 1 to destroy
01:07:00: TTY0: no timer type 3 to destroy
01:07:00: TTY0: no timer type 4 to destroy
01:07:00: TTY0: no timer type 2 to destroy
Site_Controller>
01:11:34: TTY0: EXEC creation
01:11:34: TTY0: create timer type 0, 599980 seconds
01:11:34: TTY0: create timer type 1, 600 seconds
Running Config
Current configuration:
!
version 12.1
service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname Site_Controller
!
enable secret 5 $1$8N4R$sLtyZJ3bBNoTdphJuvBCg.
enable password killroy
!
!
!
!
!
ip subnet-zero
ip name-server 209.70.44.6
ip name-server 46.53.183.40
!
chat-script rstmdm "" "AT&FS0=1&B1&C1&D2&H1&K1&M4&R2" OK
chat-script dialnum ABORT ERROR ABORT BUSY "" "ATDT \T" TIMEOUT 60 CONNECT
!
!
!
interface Ethernet0
ip address 192.168.103.1 255.255.255.0
ip nat inside
!
interface Serial0
no ip address
shutdown
service-module 56k clock source line
service-module 56k network-type dds
!
interface Serial1
physical-layer async
ip address 209.71.44.243 255.255.255.0
ip nat outside
encapsulation ppp
dialer in-band
dialer rotary-group 0
dialer-group 1
async default routing
async mode dedicated
no cdp enable
!
interface Dialer0
ip address negotiated
ip nat outside
encapsulation ppp
keepalive 60
dialer in-band
dialer idle-timeout 600
dialer string 8388090
dialer-group 1
no cdp enable
ppp authentication pap callin
ppp pap sent-username happyman password 7 09424B1D1F0A05110E5D
!
ip nat inside source list 18 interface Dialer0 overload
ip nat outside source static udp 209.74.44.11220052 209.74.44.1121033 extendab
le
ip classless
ip route 0.0.0.0 0.0.0.0 Dialer0
no ip http server
!
access-list 18 permit 192.168.103.0 0.0.0.255
access-list 18 permit any
access-list 100 permit ip 192.168.0.0 0.0.255.255 any
dialer-list 1 protocol ip permit
!
line con 0
session-timeout 35791
location Mezure's lab in Bend OR.
absolute-timeout 10000
logging synchronous level 0
history size 100
transport input none
line 2
script dialer dialnum
script reset rstmdm
modem InOut
modem autoconfigure type netforce1
transport input all
stopbits 1
speed 115200
flowcontrol hardware
line vty 0 4
password killroy
login
!
end
04-13-2002 09:11 AM
"debug dialer" will let us know about why the line is disconnected and connected again..How soon you have notice the line is connecting and disconnecting? Now try increasing the idle-timeout from 600 secs (10 mins) to 20 mins (1200 sec).
So just post the "debug dialer" with "debug modem" to know the reason..
04-15-2002 11:57 AM
Modem, chat and PPP debugs will give more clues as to why it keeps disconnecting.
Also see if removing keepalive command from dialer helps.
~Zulfi
04-16-2002 09:21 AM
Note too that the debug you have is for the console port; with the debugs requested, you want to see TTY2 and serial 1 as the line and interface.
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