ISDN Router 1812j - It won't reset the caller time out parameter

[rojiroji123]

I am having a problem about the caller time out.

#dialer idle-timeout 180 either

So the ISDN call will be disconnect after 180 sec.

However even there is traffic on the ISDN line, it will disconnect after 180 sec.

For example I PING -t command to the destination IP address, it will start dialing out after I run the PING command from srouce PC, but it will disconnect after 180 sec even continue to PING.

I checked the remaining time by the command #show caller timeouts

It won't reset the remaining Timer parameter.

  Line           User               Limit     Remaining Timer Type

  BR0:1          -                  00:03:00  00:00:49  Dialer idle

Here is the config which I think related ISDN dial.

Please advise why caller timer won't reset.

[Config]

!!!!!!!!!!!!!!
interface BRI0
ip address negotiated
ip virtual-reassembly
encapsulation ppp
dialer idle-timeout 180 either
dialer string 03********
dialer-group 1
isdn switch-type ntt
isdn point-to-point-setup
no cdp enable
ppp authentication chap callin
ppp chap hostname ***
ppp chap password 0 ***
crypto ipsec client ezvpn EzVPN-client

ip route 172.100.133.0 255.255.255.0 BRI0

access-list 101 permit ip host 10.90.1.2 host 172.100.133.5
dialer-list 1 protocol ip list 101

!!!!!!!!!!!!

Thanks

Sean

[rojiroji123]

Can anyone knows how to reset the time out parameter?

[ashok_boin]

Hi,

Can you pls check with "debug dialer packet" to see whether your traffic is interesting or not as per ISDN?

This link may help you.

http://www.cisco.com/en/US/tech/tk801/tk133/technologies_tech_note09186a0080094eb7.shtml

Regards...

-Ashok.

[prometricjapan]

Hi, Ashok.

The link is very useful.

Somehow now works fine.

It reset the Idle Time when PING thru BRI port.

I did not change anything but now work fine.

It is very strange.

But this is good experience for me to understand the architecture.

Thanks

Sean

[prometricjapan]

Actually, I found the issue.

After I added this line.

access-list 101 permit ip any host 172.100.133.5

So, after I add "any" for the source ip then it reset the idle timeout parameter.

But I do not get it.

Because I can dial out only from the host "10.90.1.2"

So the host IP address is correct.

I want to dial only if specific host request to the router.

Any idea why this is not working.