ISDN Flapping when Watch-List in use

From: Loi, Choon Ho (ChoonHo.Loi@getronics.com)
Date: Wed Nov 23 2005 - 09:35:10 GMT-3


R1---------ISDN----------------R2

With this simple setup, I don't understand why the isdn keeps on
flapping.
I tot r1 should reset the idle-timeout without redial.

I had been search thru the Archive but could not find any solution.

Thanks in advance for showing me the rite way to configure dialer-watch.

R1:
interface BRI0/0
 ip address 100.0.0.1 255.255.255.0
 encapsulation ppp
 ip ospf cost 99
 dialer idle-timeout 40
 dialer map ip 100.0.0.3 name r3 class LLL broadcast 2004
 dialer map ip 172.16.1.1 name r3 broadcast 2004
 dialer callback-secure
 dialer watch-group 1
 dialer-group 1
 isdn switch-type basic-net3
 isdn calling-number 2002
 no peer neighbor-route
 ppp callback accept

router ospf 1
 log-adjacency-changes
 network 100.0.0.0 0.0.0.255 area 0
 network 172.16.0.0 0.0.0.255 area 0
 network 192.168.0.0 0.0.0.255 area 1
!
!
map-class dialer LLL
 dialer callback-server username
access-list 101 deny ospf any any
access-list 101 permit ip any any
dialer watch-list 1 ip 172.16.1.1 255.255.255.255
dialer-list 1 protocol ip list 101
!

R2:
interface BRI0
 ip address 100.0.0.3 255.255.255.0
 encapsulation ppp
 ip ospf cost 9999
 dialer idle-timeout 40
 dialer map ip 100.0.0.1 name r1 broadcast 2002
 dialer map ip 192.168.0.0 name r1 broadcast 2002
 dialer callback-secure
 dialer-group 1
 isdn switch-type basic-net3
 no peer neighbor-route
 ppp callback request

router ospf 1
 log-adjacency-changes
 network 100.0.0.0 0.0.0.255 area 0
 network 172.16.0.0 0.0.0.255 area 0
 network 172.16.1.0 0.0.0.255 area 1
 network 172.16.2.0 0.0.0.255 area 2
!
!
!
dialer-list 1 protocol ip permit



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