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New Member

ISDN Interface Active But Cannot Ping

I have a backup interface for my Frame Relay. After the frame relay down, the ISDN is up and completely active. But I cannot ping my BRI interface.

Can you all help me with this.

---------------------------------------------

012_RO_01#sh ip route

Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP

D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area

N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2

E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP

i - IS-IS, L1 - IS-IS level-1, L2 - IS-IS level-2, ia - IS-IS inter area

* - candidate default, U - per-user static route, o - ODR

P - periodic downloaded static route

Gateway of last resort is not set

C 192.168.12.0/24 is directly connected, FastEthernet0/0

S 192.168.10.0/24 [150/0] via 192.168.252.25

192.168.251.0/30 is subnetted, 1 subnets

C 192.168.251.24 is directly connected, Dialer2

192.168.252.0/24 is variably subnetted, 2 subnets, 2 masks

C 192.168.252.24/30 is directly connected, Dialer1

C 192.168.252.25/32 is directly connected, Dialer1

----------------------------------------------------------------

012_RO_01#ping 192.168.252.25

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 192.168.252.25, timeout is 2 seconds:

.....

Success rate is 0 percent (0/5)

Thank YOu

HATO

2 REPLIES
Cisco Employee

Re: ISDN Interface Active But Cannot Ping

Need to know the following debug with running config to start troubleshooting

debug isdn q931

debug ppp nego

debug ppp authentication

debug dialer

term mon

Are you using dialer map or dialer profile? If you use dialer map, pl. make sure to have same exact username of receiving side router in the dialer map which was presented during authentication..Pl. post it with the running config as well..

New Member

Re: ISDN Interface Active But Cannot Ping

Hi,

Check that have you " dailer list # protocol ip permit " check this command global configuration mode.

I think its works.

Furquan

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