From: Fan Shan (fansh@publicf.bta.net.cn)
Date: Thu Oct 31 2002 - 12:57:20 GMT-3
bootcamp lab5 
2.OSPF Demand Circuit
If I follow the answer,my isdn connection is continually up after  dialer idle-timeout 45,because of ospf broadcast to224.0.0.5(use show dialer to see it).
The question is,if I configure :
 dialer-list 1 protocol ip list 100
access-list 100 permit icmp any any 
it will stop ospf  routing broadcast
If I configured simple as
dialer-list 1 protocol ip permit
it will continually up after every idle-timeout.
I think the answer is wrong, But  I cannot find correct answer myself, who can help me?	Better send me the correct config			 
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