From: Eddie Parra (eparra@xxxxxxxxx)
Date: Wed Oct 11 2000 - 13:39:45 GMT-3
This is true. You have to watch out for code issues also. Certain
revisions of code will not allow you to specify a dialer map without a
dialer string. I had this problem in the lab. I also remember doing a "ip
deny any" once in my home lab and it shut the interface down. The routers
in the CCIE lab run different revisions of code and you have to know how to
get around these things.
-Eddie
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Roger Dellaca
Sent: Wednesday, October 11, 2000 12:03 PM
To: ccielab@groupstudy.com
Subject: RE: ISDN Question
In my experience, no dialer string is the correct method. I had a situation
with different dialer-list on both sides, and don't recommend it, because
even though the dialing end is not counting down the idle timeout (because
pakets match its dialer-list), the receiving end is (because it hasn't
received anything it considers "interesting" according to its dialer list),
the receiving end will disconnect the call causing the dialing end to dial
again.
>>> "Derek Buelna" <dameon@aracnet.com> 10/10 11:13 PM >>>
I was under the impression you could do this:
Legacy: physical interface - dialer map with a dial string on one end and no
dial string on the other.
DDR: dialer interface - no map of course - no dial string on one end as
above.
If he doesn't have a dial string, he can't call, right?
I guess the debugs would say that he would try and call but no dial string.
Do any of you have any thoughts on this?
It is obviously important to have this configured properly so that only one
side will ever try to dial.
-Derek
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Daniel Keller
Sent: Tuesday, October 10, 2000 7:50 PM
To: sbhakta@charter.net; ccielab@groupstudy.com
Subject: Re: ISDN Question
Do this on the non-calling router:
Int bri0
dialer-group 1
dialer-list 1 protocol ip deny
Then no traffic will ever trigger a call.
Dan Keller
>>> "Sanjay Bhakta" <sbhakta@charter.net> 10/10/00 09:31PM >>>
It is possible to set one side to be the calling and we will not have to use
dialer maps on the called router for IP and IPX. The IOS will create dialer
maps dynamically.
What if you are also routing appletalk or decnet over ISDN and you want to
make sure only one side will be initiating calls. I suppose we can create
dialer maps on the called router with a wrong dialer string, which I have
done and seems to work fine.
Is there another way?
********
Sanjay Bhakta (Halifax 10/18)
sbhakta@charter.net
sanjaybhakta@hotmail.com
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