Having trouble with Kaslow's ISDN example

From: CCIE Canidate (cisco@heartofdarknessstudios.com)
Date: Wed May 05 2004 - 17:09:05 GMT-3

I have been trying to make the basic ISDN config in Kaslow's book to
work, but am having issues. This is my config:

R1:

interface BRI0
 ip address 172.16.1.1 255.255.255.0
 encapsulation hdlc
 dialer string 2222
 dialer-group 1
 isdn switch-type basic-ni
 isdn spid1 22220101 2222

dialer-list 1 protocol ip permit

R2:
interface BRI0
 ip address 172.16.1.2 255.255.255.0
 no ip directed-broadcast
 dialer string 1111
 dialer-group 1
 isdn switch-type basic-ni
 isdn spid1 11110101 1111

dialer-list 1 protocol ip permit
----------------------------------END

I am trying to make this basic config work between 2 devices and am
getting stuffed. Can somebody point me in the right direction?

Thanks!

ISDN Challenged guy

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