From: Choon, Raymond () (rchoon@xxxxxxx)
Date: Sat Jun 02 2001 - 19:21:53 GMT-3
I ran into the same problem before. It seemed for me that the two routers
mis-communicated because of the authentication.
This is how I solved it. I took away the authentication and the things that
were not necessary for dialing under BRI interface. In your case, it is
"ppp auth chap". It worked as it supposed to-- Dialer watch worked and
dialed successfully. Then I added back the authentication and others. The
problem was solved. I ran into the same problem more than once before. Let
me know whether it helps.
I just want to add that. It needs dialer map ip 192.168.20.0... under BRI
interface. It is for dialer watch lists to match the dial-up interfaces if
there are more than one dial-up interfaces. If the dialer map ip
192.168.20.0 is missing under BRI, there will be an error message, "Missing
dialer string/map", although there is a dialer map, dialer map ip
172.16.12.2 name r2 broadcast 384020, under BRI interface.
I do have a question:
If I use dialer watch list, it seems that the ISDN line is up forever
because as long as the ISDN line is down, dialer watch list is working then
the ISDN line is dialing regardless the Snapshot, IP OSPF demand circuit,
etc. Any comments on that.
Raymond
-----Original Message-----
From: Rob Webber [mailto:rwebber@callisma.com]
Sent: Thursday, May 31, 2001 9:18 PM
To: Daniel C. Young; ccielab@groupstudy.com
Subject: RE: dialer watch over isdn for eigrp
I would try getting rid of the
dialer map ip 192.168.20.0 name r2 broadcast 384020
You definitely should not need that under your BRI interface...other than
that it looks good to me...
Rob.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Daniel C. Young
Sent: Thursday, May 31, 2001 5:12 PM
To: ccielab@groupstudy.com
Subject: dialer watch over isdn for eigrp
Group,
Can't seem to get this working: r1 is connected to r2 via s1 and br0 (legacy
ddr) for backup with both running eigrp. The isdn works fine when tested
with floating statics and backup interfaces. But with the dialer watch isdn
just will not dial, although 'debug dialer' shows dialer watch recognizing
the primary link going down:
r1(config)#int s1
r1(config-if)#sh
r1(config-if)#
02:14:18: DDR: Dialer Watch: watch-group = 10
02:14:18: DDR: network 192.168.20.0/255.255.255.0 DOWN,
02:14:18: DDR: primary DOWN
02:14:18: DDR: Dialer Watch: Dial Reason: Primary of group 10 DOWN
02:14:18: DDR: Dialer Watch: watch-group = 10,
02:14:18: DDR: Dialer Watch: watch-group = 10
02:14:18: DDR: network 192.168.20.0/255.255.255.0 DOWN,
02:14:18: DDR: primary DOWN
02:14:18: DDR: Dialer Watch: Dial Reason: Primary of group 10 DOWN
02:14:18: DDR: Dialer Watch: watch-group = 10,
r1(config-if)#
r1(config-if)#^Z
02:14:20: %LINK-5-CHANGED: Interface Serial1, changed state to
administratively down
02:14:21: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial1, changed
state to down
r1#s isdn act
----------------------------------------------------------------------------
----
ISDN ACTIVE CALLS
----------------------------------------------------------------------------
----
History table has a maximum of 100 entries.
History table data is retained for a maximum of 15 Minutes.
----------------------------------------------------------------------------
----
Call Calling Called Remote Seconds Seconds
Seconds Charges Type Number Number Name
Used Left Idle Units/Currency
----------------------------------------------------------------------------
----
----------------------------------------------------------------------------
----
Relevant configs on R1:
interface Ethernet0
ip address 192.168.10.1 255.255.255.0
no ip directed-broadcast
no keepalive
!
interface Serial1
ip address 10.12.12.1 255.255.255.0
no ip directed-broadcast
shutdown
!
interface BRI0
ip address 172.16.12.1 255.255.255.0
no ip directed-broadcast
encapsulation ppp
dialer map ip 172.16.12.2 name r2 broadcast 384020
dialer map ip 192.168.20.0 name r2 broadcast 384020
dialer watch-group 10
dialer-group 1
isdn switch-type basic-dms100
isdn spid1 3840000001
isdn spid2 3840000002
ppp authentication chap
!
router eigrp 1
network 10.0.0.0
network 172.16.0.0
network 192.168.10.0
no auto-summary
!
access-list 101 deny eigrp any any log
access-list 101 permit ip any any
dialer watch-list 10 ip 192.168.20.0 255.255.255.0
dialer-list 1 protocol ip list 101
Just in case, configs for R2:
interface Ethernet0
ip address 192.168.20.2 255.255.255.0
no ip directed-broadcast
no keepalive
!
interface Serial0
no ip address
no ip directed-broadcast
no ip mroute-cache
shutdown
!
interface Serial1
ip address 10.12.12.2 255.255.255.0
no ip directed-broadcast
clockrate 2000000
!
interface BRI0
ip address 172.16.12.2 255.255.255.0
no ip directed-broadcast
encapsulation ppp
dialer-group 1
isdn switch-type basic-dms100
isdn spid1 3840200001
isdn spid2 3840200002
ppp authentication chap
!
router eigrp 1
network 10.0.0.0
network 172.16.0.0
network 192.168.20.0
no auto-summary
!
dialer-list 1 protocol ip permit
Many thanks in advance,
Daniel C. Young
Sr. Network Engineer
(909) 221-1928 Direct
dan.young@sbc.com
SBC Internet Data Center
2681 Kelvin Ave.
Irvine, CA 92614
(949) 221-1900 Main
(949) 221-1978 Fax
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