From: MMoniz (ccie2002@tampabay.rr.com)
Date: Sat Apr 24 2004 - 20:45:33 GMT-3
Kenneth I agree with you 100%!!!!!!
I stand corrected....
But lab up ppp over isdn with no auth and no names in the dialers. Then
just add the names to
the dialer maps and see what happens
mike
-----Original Message-----
From: Kenneth Wygand [mailto:KWygand@customonline.com]
Sent: Saturday, April 24, 2004 7:04 PM
To: MMoniz; Yasser Abdullah; Troy; ccielab@groupstudy.com
Subject: RE: Dialer Map "name" parameter
MMoniz,
PPP Authentication is actual the engine used for the interface receiving
a call to determine who in fact is on the other side of the connection.
Without PPP authentication, the dial_ing_ router knows who it called,
but the dial_ed_ router doesn't know who the dial_ing_ router is.
Recommended best practice by Cisco is to enable some form of
authentication when running PPP encapsulation across any interfaces.
Kenneth E. Wygand
Systems Engineer, Project Services
CISSP #37102, CCNP, CCDP, ACSP, Cisco IPT Design Specialist, MCP, CNA,
Network+, A+
Custom Computer Specialists, Inc.
"The only unattainable goal is the one not attempted."
-Anonymous
-----Original Message-----
From: MMoniz [mailto:ccie2002@tampabay.rr.com]
Sent: Friday, April 23, 2004 11:57 PM
To: Kenneth Wygand; Yasser Abdullah; Troy; ccielab@groupstudy.com
Subject: RE: Dialer Map "name" parameter
actually the name keyword really has nothing to do with ppp authen
it is more of a way for the router to "know' who it is connected to
so when it does route lookups etc when it is connected not to try to
iniitiate another call
You don't need authentication at all to bring up isdn right?
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Kenneth Wygand
Sent: Friday, April 23, 2004 11:51 AM
To: Yasser Abdullah; Troy; ccielab@groupstudy.com
Subject: RE: Dialer Map "name" parameter
Yasser,
Keep in mind that if you complete the dialer configuration in this way,
the idle timeout will never be reset on the remote side, causing the
link to be torn down and brought up again at its expiration. If you
want to configure it in this manner, I strongly recommend also issuing a
"no dialer idle-timeout" command on the remote router.
Kenneth E. Wygand
Systems Engineer, Project Services
CISSP #37102, CCNP, CCDP, ACSP, Cisco IPT Design Specialist, MCP, CNA,
Network+, A+
Custom Computer Specialists, Inc.
"The only unattainable goal is the one not attempted."
-Anonymous
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Yasser Abdullah
Sent: Friday, April 23, 2004 11:39 AM
To: 'Troy'; ccielab@groupstudy.com
Subject: RE: Dialer Map "name" parameter
The name keyword is used by ppp authentication. It must match the name
the remote side is sending for authentication.
Restricting a router from initiating a call by removing the dial string
can be problematic. A better option would be to include the dial string
and a dialer-group, but configure no dialer-list.
Brgds,
Yasser
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Troy
Sent: Friday, April 23, 2004 6:20 PM
To: ccielab@groupstudy.com
Subject: Dialer Map "name" parameter
All,
Can anyone explain what exactly the "name" keyword for the dialer map
statement is used for?
I know that you must have it for PPP callback. However I noticed that
including the keyword breaks a scenario that I would not think it would.
For example if you ONLY want one side of a BRI to dial. So you omit the
dialer string on the dialer map for the side that should NOT dial to
accomplish this. When the dialer map has the name keyword, but no dial
string, and an incoming call comes in, the connection is established but
there are encapsulation failures back towards the calling router.
If you do not use the name keyword then the scenario works fine. Anyone
know why this causes problems?
R1
dialer map ip 1.1.1.2 name R2 broadcast XXXXXXX
and
R2
dialer map ip 1.1.1.1 name R1 broadcast
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