From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Sat Oct 29 2005 - 16:07:31 GMT-3
Leigh,
I pasted your configurations into a rack and didn't notice any
problems. I was looking to see if the idle timeout was possibly set to
low but it wasn't.
You should try to isolate the OSPF network across the ISDN to
see if there are any topology changes that may be keeping the ISDN line
up. You can do this by just running OSPF between R1 and R2 across the
ISDN.
HTH,
Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Leigh Harrison
Sent: Saturday, October 29, 2005 3:38 AM
To: FORUM
Subject: IP Ospf Demand-Circuit
All,
I've got an ospf demand circuit configured up and it doesn't seem to be
playing the game.
I've debug'd ip packet (on R1) and I see the ospf packet (224.0.0.5)
being sent to 2.2.2.1 and then it brings the line up, even though I've
got demand circuit configured.
Am I missing something obvious ?
LH
-----------------------
I have:-
R1 --- frame --- R2
| --- ISDN --- |
-----------------------
R1
int bri 0
ip add 2.2.2.1 255.255.255.252
ip ospf demand-circut
dialer idle-timeout 10
dialer map ip 2.2.2.2 broadcast 11
dialer-group 1
isdn switch-type basic-net3
no cdp enable
dialer-list 1 protocol ip permit
int s0
ip add 1.1.1.1 255.255.255.0
.
.
router ospf 1
network 1.1.1.1 0.0.0.0 ar 0
network 2.2.2.1 0.0.0.0 ar 0
-----------------------
R2
int bri 0
ip add 2.2.2.2 255.255.255.252
ip ospf demand-circut
dialer idle-timeout 10
dialer map ip 2.2.2.1 broadcast 21
dialer-group 1
isdn switch-type basic-net3
no cdp enable
dialer-list 1 protocol ip permit
int s0
ip add 1.1.1.2 255.255.255.0
.
.
router ospf 1
network 1.1.1.2 0.0.0.0 ar 0
network 2.2.2.2 0.0.0.0 ar 0
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