From: Chacko, Raj (RChacko@DRAFTNET.com)
Date: Wed Nov 09 2005 - 17:30:21 GMT-3
Hi GS,
I was under the impression that when you enable ppp
authentication on ISDN, the default behavior is both sides challenge each
other. I find that this is not the case; my debugs show that only the router
that is called into challenges the calling router. This would mean that the
calling option is not needed anymore? Is this something new with the newer
version of IOS? Also, I found that I don't need the encap ppp on the bri0
contradictory to a lot of the documentation out there! -Any thoughts would
be much appreciated.
TIA,
Raj
Here is my lab
R2----isdn----R5
_______________
R2
!
interface BRI0
no ip address
encapsulation hdlc
dialer pool-member 1
isdn switch-type basic-ni
isdn spid1 0555100001
isdn spid2 0555300001
interface Dialer1
ip address 192.168.1.2 255.255.255.0
encapsulation ppp
dialer pool 1
dialer string 5552000
dialer string 5554000
dialer-group 1
ppp authentication chap
________________________
R5
interface BRI0
no ip address
encapsulation hdlc
dialer pool-member 1
isdn switch-type basic-ni
isdn spid1 0555200001
isdn spid2 0555400001
!
interface Dialer1
ip address 192.168.1.1 255.255.255.0
encapsulation ppp
dialer pool 1
dialer string 5551000
dialer string 5553000
dialer-group 1
ppp authentication chap
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