08-20-2003 04:59 AM - edited 03-02-2019 09:44 AM
I've got a C3640 off site providing remote dialin access for users over a BRI interface.
It appears that if users do not access this service for 20 days the interface falls into a 'Layer 2 : TEI Assigned' state, thus requiring a site visit and a physical reset of the interface before normal access can be restored.
I thought it may have been something to do with ISDN Timer T203 as this seemed to be set to exactly 20 days, halving the value caused it to shut down in ten days. I've tried setting the value to 0 but it seems to revert back to 20 days. The highest value possible also has the same effect.
I'm a bit stumped as to which way to proceed from here, any suggestions would be greatly welcomed.
08-26-2003 07:12 AM
I am not sure what command are you using it to change this value. I see that this timer is being talked about more with respect to frame-relay lapf. You could probably check if this is a problem with the hardware or software that you are using. If there is no other way to fix this or access the router, how about getting console or AUX access to the router by dialing up via a modem and then resetting the interface on the router through the CLI.
09-01-2003 03:21 AM
Thanks for your reply, I've posted the current config to see if this will shed anymore light on the problem. The command I suspect is causing the problem appears under the serial interface.
version 12.2
service timestamps debug uptime
service timestamps log datetime msec localtime
service password-encryption
!
hostname *
!
boot system flash c3640-jk9o3s-mz.122-7c.bin
logging buffered 4096 debugging
enable secret *
!
username * password *
!
memory-size iomem 40
ip subnet-zero
no ip source-route
!
!
no ip domain-lookup
!
ip audit notify log
ip audit po max-events 100
ip ssh time-out 120
ip ssh authentication-retries 3
ip address-pool local
!
isdn switch-type primary-net5
call rsvp-sync
!
!
!
!
!
!
controller E1 1/0
framing NO-CRC4
pri-group timeslots 1-16
!
!
!
interface FastEthernet0/0
ip address *
no ip route-cache
no ip mroute-cache
speed 100
half-duplex
!
interface Serial1/0:15
ip unnumbered FastEthernet0/0
ip nat inside
encapsulation ppp
ip mroute-cache
dialer rotary-group 1
isdn switch-type primary-net5
isdn overlap-receiving
isdn T203 30000
no cdp enable
!
interface Group-Async1
physical-layer async
ip unnumbered FastEthernet0/0
encapsulation ppp
timeout absolute 60 0
dialer in-band
dialer idle-timeout 900
async mode dedicated
peer default ip address pool Dialup
no fair-queue
ppp callback accept
ppp authentication chap pap
ppp multilink
!
interface Dialer1
ip unnumbered FastEthernet0/0
ip nat inside
encapsulation ppp
dialer in-band
dialer idle-timeout 300
dialer load-threshold 100 outbound
dialer-group 1
autodetect encapsulation ppp
peer default ip address pool Dialup
ppp callback accept
ppp authentication chap pap
ppp multilink
!
ip local pool Dialup *
ip default-gateway *
ip nat inside source list 1 interface FastEthernet0/0 overload
no ip classless
ip route 0.0.0.0 0.0.0.0 FastEthernet0/0
ip route * 255.255.255.0 Dialer1
ip route * 255.255.255.0 Dialer1
no ip http server
ip pim bidir-enable
!
access-list 1 permit *
!
!
dial-peer cor custom
!
!
!
!
!
line con 0
password *
logging synchronous
login
line aux 0
line vty 0 4
password *
login
!
end
To re-itterate, this router shuts down ISDN layer 2 if it not used for a period greater than 20 days.
Any advice would be greatly appreciated, I'm pulling my hair out over this fault.
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