Table Of Contents
Dialer Idle Timer Inbound Traffic Configuration
Supported Standards, MIBs, and RFCs
Configuring the Dialer Idle Timer
dialer idle-timeout (interface configuration)
Dialer Idle Timer Inbound Traffic Configuration
This document includes the following sections:
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Supported Standards, MIBs, and RFCs
Feature Overview
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.
Benefits
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.
Restrictions
You can not specify that only outbound traffic will reset the dialer idle timer.
Related Documents
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.
Supported Platforms
This feature is supported on all platforms that contain dialers.
Supported Standards, MIBs, and RFCs
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
Prerequisites
Before configuring the Dialer Idle Timer Inbound Traffic Configuration feature, configure DDR.
Configuration Tasks
See the following section for the required configuration tasks for theDialer Idle Timer Inbound Traffic Configuration feature.
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Configuring the Dialer Idle Timer
To specify that only inbound traffic will reset the dialer idle timer, use the following command in dialer interface configuration mode.
Configuration Examples
This section provides the following configuration examples:
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Legacy Dial-on-Demand Routing
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 BRI0/0ip address 10.1.1.1 255.255.255.0no ip directed-broadcastencapsulation pppdialer idle-timeout 120 inbounddialer map ip 10.1.1.2 name 2611-7 0201dialer-group 1isdn switch-type basic-5essno cdp enableppp authentication chap!ip classlessip route 11.1.1.1 255.255.255.255 10.1.1.2!access-list 101 permit icmp any anyaccess-list 101 deny ip any anydialer-list 1 protocol ip list 101tftp-server flash c2600-i-mz.jtong-CSCdm88145-120Dialer Profile
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 Serial0:23no ip addressno ip directed-broadcastencapsulation pppdialer pool-member 1 max-link 2isdn switch-type primary-5essno cdp enableppp authentication chap!interface Dialer0ip address 30.1.1.2 255.255.255.0no ip directed-broadcastencapsulation pppdialer remote-name 2610-2dialer idle-timeout 30 inbounddialer string 2481301dialer pool 1dialer-group 1no cdp enableppp authentication chapppp multilink!access-list 101 permit icmp any anyaccess-list 101 deny ip any anydialer-list 1 protocol ip list 101Command Reference
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.
dialer idle-timeout (interface configuration)
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]
no dialer idle-timeout
Syntax Description
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:
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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 1dialer idle-timeout 180 inboundRelated Commands
Guest