801 still refuses to drop line.

[G0AOZ]

In a vain attempt to try and solve the irritating (and expensive) mystery as to why this router completely ignores the dialer idle-timeout that I set, I've been reading through some of the Cisco FAQs. Maybe it's incoming traffic which is holding the line open?

One of the security measures suggests adding:-

no service tcp-small-server
no service udp-small-server

I've tried putting in those lines under the ROUTER(config)# prompt, and they seem to be accepted ok. However, they don't appear when I type "show run". Should they?


ROGER - G0AOZ.

 

[jimmyzz]

GOAOZ,
On which router are your applying this on, the dialing router or the router recieving the call? You can limit the what traffic resets the idle-timer by specifying the "inbound" parameter.
Router>(config-if) dialer idle-timeout <secs> inbound

This command tells the router that only outbound traffic will reset the idle-timer (for a dial-out router).

JimmyZ

 

[G0AOZ]

JIMMYZZ, thanks for that... This 801 Router is the only one on the system, and is used exclusively for outbound traffic. Ok, I'll try adding the &quot;inbound&quot; suffix to the dialer idle-timeout command, and hopefully this will then ignore any inbound traffic on the ISDN line.

Anyone care to comment on what will or won't appear in show run, as per my original post above please?


ROGER - G0AOZ.

 

[routerman]

Roger,

The two commands you stated turn off services in the router that are not needed, in older IOS these were on by default, however in later IOS they are off by default. So when you enter the commands they dont show, as that is the default setting anyway. Its an IOS quirk, some default settings are shown in the output from SH RUN, others dont appear.

 

[G0AOZ]

Ah good, thanks for that ROUTERMAN. I wondered if that might be the case. I guess that applies to one or two other commands as well. Thanks.


ROGER - G0AOZ.