08-07-2009 07:53 AM - edited 03-04-2019 05:40 AM
I have one router 2600 dialing into my hub 7200. The call keeps disconnecting every split second. The only change was the ISDN lines were reordered. Here is the debug q931 info. Any help would be appreciated.
08-09-2009 11:45 PM
Hi
It was long time since I did isdn, but I think next step would be to check the ppp connection.
Try with "debug ppp authentication" and "debug ppp negotiation" to see how ppp is functioning.
/Mikael
08-10-2009 05:34 AM
*Mar 21 18:33:44: ISDN BR0/0 Q931: RX <- CONNECT pd = 8 callref = 0x90
*Mar 21 18:33:44: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up
*Mar 21 18:33:44: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to 1xxxxxxxxxx N/A
*Mar 21 18:33:44: ISDN BR0/0 Q931: TX -> CONNECT_ACK pd = 8 callref = 0x10
*Mar 21 18:33:45: ISDN BR0/0 Q931: RX <- DISCONNECT pd = 8 callref = 0x90
Cause i = 0x8290 - Normal call clearing
*Mar 21 18:33:45: %ISDN-6-DISCONNECT: Interface BRI0/0:1 disconnected from 1xxxxxxxxxx , call lasted 1 seconds
*Mar 21 18:33:45: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to down
*Mar 21 18:33:45: ISDN BR0/0 Q931: TX -> RELEASE pd = 8 callref = 0x10
*Mar 21 18:33:45: ISDN BR0/0 Q931: RX <- INFORMATION pd = 8 callref = N/A
Feature Indicate i = 0x8200
*Mar 21 18:33:45: ISDN BR0/0 Q931: RX <- RELEASE_COMP pd = 8 callref = 0x90
Hi,
As per the debug, for ISDN L-2/L-3 its a perfectly normal call clearing, hence its something else at a higher level.
Could you please paste the sh run interface config from both the routers to help us understand better about the issue
Regards
08-11-2009 10:19 AM
HUB side
interface BRI5/0
no ip address
encapsulation ppp
shutdown
dialer pool-member 1
isdn switch-type basic-ni
isdn spid1 xxxxxxxxxxxxxxxxxxxxxx
isdn spid2 xxxxxxxxxxxxxxxxxxxxxx
no cdp enable
ppp authentication chap pap
----------------------------
interface Dialer1
ip address 10.10.10.2 255.255.255.252
encapsulation ppp
dialer in-band
no cdp enable
ppp authentication chap pap
ppp multilink
--------------------------------------
Spoke Side
interface BRI0/0
no ip address
encapsulation ppp
shutdown
dialer rotary-group 1
dialer-group 1
isdn switch-type basic-ni
isdn spid1 xxxxxxxxxxxxxxxxxxxxxx
isdn spid2 xxxxxxxxxxxxxxxxxxxxxx
isdn fast-rollover-delay 1
-------
interface Dialer1
description connected to xxxxx
ip address 10.10.10.1 255.255.255.252
encapsulation ppp
no ip route-cache cef
no ip split-horizon
dialer in-band
dialer idle-timeout 60
dialer string 1xxxxxxxxxx
dialer string 1xxxxxxxxxx
dialer hold-queue 10
dialer load-threshold 2 either
dialer-group 1
ppp chap hostname KWEPDX
ppp chap password 7 xxxxxxxxxxxxx
ppp pap sent-username KWEPDX password 7 xxxxxxxxxxxxx
ppp multilink
08-11-2009 11:53 AM
This URL describes how to set up MLPPP over a DDR scenario. I think it will also help you set up your authentication. PAP and CHAP are set up a little differently from each other. Since CHAP is more secure, you may want to dispense with the PAP configuration altogether.
Depending on whether you want the spoke to authenticate to the hub, but not vice versa, you may want to configure CHAP CALLIN on the spoke router.
HTH
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: