why i can't ping isdn interface

From: ericdong (dongmf@huawei.com)
Date: Sat Apr 20 2002 - 23:59:19 GMT-3


Hi all,
Here is my lab topo
r2<----isdn----->r3
why i can not ping the r3 bri interface?
but can pint peer(r2) bri interface.

-----------------------------
configiration
------------------------------
r2#sh run int bri 0
Building configuration...

Current configuration:
!
interface BRI0
 ip address 150.10.65.2 255.255.255.252
 no ip directed-broadcast
 encapsulation ppp
 ip ospf message-digest-key 1 md5 cisco
 ip ospf cost 9999
 ip ospf interface-retry 0
 ip ospf demand-circuit
 dialer map ip 150.10.65.1 name cisco5 broadcast
 dialer load-threshold 1 either
 dialer-group 1
 isdn switch-type basic-5ess
 ppp authentication chap
 ppp multilink
end

r3# sh run int bri 0
Building configuration...

Current configuration:
!
interface BRI0
 ip address 150.10.65.1 255.255.255.252
 no ip directed-broadcast
 encapsulation ppp
 ip ospf message-digest-key 1 md5 cisco
 ip ospf cost 9999
 ip ospf interface-retry 0
 dialer map ip 150.10.65.2 name r2 broadcast 3318
 dialer load-threshold 1 either
 dialer-group 1
 isdn switch-type basic-5ess
 ppp authentication chap callin
 ppp chap hostname cisco5
 ppp multilink
end
_____________________
ping test
_____________________

r3#ping 150.10.65.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 150.10.65.1, timeout is 2 seconds:
...
Success rate is 0 percent (0/3)
r3#
3d20h: BR0 DDR: Dialing cause ip (s=150.10.65.1, d=150.10.65.1)
3d20h: BR0 DDR: No dialer string, dialing cannot occur
3d20h: BR0 DDR: Dialing cause ip (s=150.10.65.1, d=150.10.65.1)
3d20h: BR0 DDR: No dialer string, dialing cannot occur
3d20h: BR0 DDR: Dialing cause ip (s=150.10.65.1, d=150.10.65.1)
3d20h: BR0 DDR: No dialer string, dialing cannot occur

r3#ping 150.10.65.2

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 150.10.65.2, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 28/65/204 ms



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