From: Danny Andaluz (dannyandaluz@comcast.net)
Date: Tue Mar 25 2003 - 21:45:16 GMT-3
Also, what I have seen is when you configure the demand circuit, also
configure "no peer neighbor-route" on the BRI interface of the side that you
have the demand circuit configured. Perhaps it a glitch of the ios i was
using, but i found that when the BRI came up, it created a host route for
the BRI interface in the routing table. This caused a change in the ospf
database and the ISDN kept coming up because of this change. When I put in
the "no peer route" command the ISDN came up and went down right away after
the update and stayed down unless there was traffic that needed to get to
the other side. As far as interesting traffic, I just configured "protocol
ip permit". OSPF hellos do not bring the ISDN link up, even though they
fall under the "protocol ip permit" command (224.0.0.5). HTH
Danny
----- Original Message -----
From: "Sanfilippo, Ted" <Ted.Sanfilippo@PaeTec.com>
To: "'Scot Peter'" <scotsman@rediffmail.com>; <ccielab@groupstudy.com>
Sent: Thursday, March 20, 2003 12:43 PM
Subject: RE: IP OSPF DEMAND-CIRCUIT QUESTION
> It doesn't matter which side has the "IP OSPF DEMAND-CIRCUIT" once the
ISDN
> circuits come up and negotiate OSPF, they will both be OSPF demand
circuits.
> Thats why you only need it on one side. ( thats how I understand it).
>
> -----Original Message-----
> From: Scot Peter [mailto:scotsman@rediffmail.com]
> Sent: Thursday, March 20, 2003 9:36 AM
> To: ccielab@groupstudy.com
> Subject: IP OSPF DEMAND-CIRCUIT QUESTION
>
>
> Hello group,
>
> I have two Routers configured with OSPF as shown below. R2 is
> configured for callback accept, where as R1 is requesting
> Callback.
> I am concerned about configuring "Ip ospf demand-circuit" on one
> of the Routers. Which Router is the best to put Demand-circuit?
> I am bit confused to configure demand circuit on R1 as it will not
> hold the circuit after requesting the call; so please clarify my
> question.
>
> |----Frame-relay----|
> R1| |R2
> |----ISDN Backup----|
>
> Thanks in advance
> Pet.
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