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ISDN BUG?

I am having a strange ISDN dial-up problem. I have

a dialer watch-group set up to watch a loopback

interface on the other end of my T1 connection. For

some reason, even though the T1 is still up, my ISDN

dialer will pick up and dial. It will only dial some of the time. It used to be every hour until I denied icmp traffic. I have debugged the ospf packets coming through and the neighbor never goes away. Yet it will still pick up and dial. Here is my config

interface BRI1/2

no ip address

encapsulation ppp

dialer pool-member 1

isdn switch-type basic-ni

isdn spid1 xxxxxxx

isdn spid2 xxxxxxxx

ppp authentication chap

ppp multilink

interface Dialer1

ip address xxxxxxxxxxx

encapsulation ppp

dialer pool 1

dialer idle-timeout 180

dialer string xxxxxxxxx

dialer load-threshold 5 either

dialer watch-group 2

dialer-group 1

ppp authentication chap callin

ppp multilink

dialer watch-list 2 ip xxxxxxxxxxx

dialer-list 1 protocol ip list 115

access-list 115 deny ip any host 255.255.255.255

access-list 115 deny ospf any any

access-list 115 deny icmp any any

access-list 115 permit ip any any

The dial is initiated from one side only.

This is a Cisco 3620 with 12.2.19a IOS on it. Could

this be a bug?

2 REPLIES
Bronze

Re: ISDN BUG?

You need to catch it and do a sho dialer when the line is up. If the dwatch caused the call it will say so in the dial reason. If not it will tell you who did cause the call. This info is also available in the output of debug dialer. That way you wont have to catch it active.

Log Buffer (16000 bytes):

Nov 13 10:39:43 CST: As11 DDR: re-enable timeout

Nov 13 10:39:49 CST: Se0:23 DDR: rotor dialout [priority]

Nov 13 10:39:49 CST: Se0:23 DDR: Dialing cause ip (s=10.3.3.97, d=10.0.4.2)

Bronze

Re: ISDN BUG?

Hi,

Test by removing dialer watch-group command. And why are you watching the loopback i/f, because it never dies in normal circumstances.

Regards..

Ashok.

With best regards... Ashok ----------- Pls kindly rate if helpful or answered your question.
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