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This document includes the following sections:
The dialer idle-timeout interface configuration command specifies the duration of time before an idle connection is disconnected. Previously, both inbound and outbound traffic would reset the dialer idle timer. The Dialer Idle Timer Inbound Traffic Configuration feature enables you to specify that only inbound traffic will reset the dialer idle timer.
By specifying that only inbound traffic will reset the dialer idle timer, you can prevent unexpected Internet traffic from keeping an idle connection from being disconnected.
You can not specify that only outbound traffic will reset the dialer idle timer.
For more information on Dial-on-Demand Routing (DDR) and dialer profiles, refer the "Dial-on-Demand" part of the Cisco IOS Dial Services Configuration Guide: Terminal Services.
This feature is supported on all platforms that contain dialers.
Standards
None
MIBs
None
For descriptions of supported MIBs and how to use MIBs, see the Cisco MIB web site on CCO at http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.
RFCs
None
Before configuring the Dialer Idle Timer Inbound Traffic Configuration feature, configure DDR.
See the following section for the required configuration tasks for theDialer Idle Timer Inbound Traffic Configuration feature.
To specify that only inbound traffic will reset the dialer idle timer, use the following command in dialer interface configuration mode.
| Command | Purpose |
|---|---|
Router#dialer idle-timeout seconds [inbound | either] | Specifies the duration of idle time in seconds after which a line will be disconnected. By default, both inbound and outbound traffic will reset the dialer idle timer. Including the inbound keyword will cause only inbound traffic to reset the timer. |
This section provides the following configuration examples:
The following example shows a Cisco 2600 series router that has enabled the dialer idle-timeout command with the inbound keyword. This command allows only inbound traffic that conforms to the dialer list to establish a connection and reset the dialer idle timer.
interface BRI0/0 ip address 10.1.1.1 255.255.255.0 no ip directed-broadcast encapsulation ppp dialer idle-timeout 120 inbound dialer map ip 10.1.1.2 name 2611-7 0201 dialer-group 1 isdn switch-type basic-5ess no cdp enable ppp authentication chap ! ip classless ip route 11.1.1.1 255.255.255.255 10.1.1.2 ! access-list 101 permit icmp any any access-list 101 deny ip any any dialer-list 1 protocol ip list 101 tftp-server flash c2600-i-mz.jtong-CSCdm88145-120
The following example shows a Cisco 5200 series router that has enabled the dialer idle-timeout command with the inbound keyword. This command allows only inbound traffic that conforms to the dialer list to establish a connection and reset the dialer idle timer.
interface Serial0:23 no ip address no ip directed-broadcast encapsulation ppp dialer pool-member 1 max-link 2 isdn switch-type primary-5ess no cdp enable ppp authentication chap ! interface Dialer0 ip address 30.1.1.2 255.255.255.0 no ip directed-broadcast encapsulation ppp dialer remote-name 2610-2 dialer idle-timeout 30 inbound dialer string 2481301 dialer pool 1 dialer-group 1 no cdp enable ppp authentication chap ppp multilink ! access-list 101 permit icmp any any access-list 101 deny ip any any dialer-list 1 protocol ip list 101
This section documents the modified dialer idle-timeout (interface configuration) command. All other commands used with this feature are documented in the Cisco IOS Release 12.1 command reference publications.
To specify the duration of idle time before a line is disconnected, use the dialer idle-timeout interface configuration command. To reset the idle timeout to the default, use the no form of this command.
dialer idle-timeout seconds [inbound | either]
Syntax Description
seconds Idle time, in seconds, that must occur on the interface before the line is disconnected. Acceptable values are positive, nonzero integers. inbound (Optional) Only inbound traffic will reset the idle timeout. either (Optional) Both inbound and outbound traffic will reset the idle timeout.
Defaults
Direction: either
Idle time: 120 seconds
Command Modes
Interface configuration
Command History
10.0 This command was introduced. 12.1(1)T The following keywords were added:
Release
Modification
Usage Guidelines
This command is used on lines for which there is no contention. When contention occurs, the dialer fast-idle command is activated. For example, when a busy line is requested to send another packet to a different destination than it is currently connected to, line contention occurs and the dialer fast-idle command is activated.
By default, this command applies to inbound and outbound calls. For example, if a receiving system needs to make outgoing calls, you might configure it with a short idle timeout.
Only packets that match the dialer group reset the idle timer.
Use the dialer idle-timeout command to set a very high idle timer when Multilink PPP is configured and you want a multilink bundle to be connected indefinitely. (The dialer-load threshold 1 command no longer keeps a multilink bundle of n links connected indefinitely and the dialer-load threshold command no longer keeps a multilink bundle of two links connected indefinitely.)
Examples
The following example specifies of an idle timeout of 3 minutes (180 seconds) on asynchronous interface 1. Because the inbound keyword is included, only inbound traffic that matches the dialer group will reset the idle timer.
interface async 1 dialer idle-timeout 180 inbound
Related Commands
dialer fast-idle (interface configuration) Specifies the amount of time that a line for which there is contention will stay idle before it is disconnected and the competing call is placed. dialer-group Controls access by configuring an interface to belong to a specific dialing group.
Command
Description
Posted: Fri May 19 15:40:43 PDT 2000
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