Configuring DLSw Dial-on-Demand over ISDN

Document ID: 12355

Introduction
Before You Begin
      Conventions
      Prerequisites
      Components Used
Configure
      Network Diagram
      Configurations
Verify
Troubleshoot
Related Information

Introduction

In this document, the dynamic keyword on the Data Link Switching (DLSw) remote-peer statement prevents the peer connection from being brought up automatically. When a circuit tries to connect, Dial-on-Demand Routing (DDR) dialing is initiated and the peer comes up. Turning off keepalives allows the ISDN connection to drop when the line is idle. Two options are available to tear down the peer connections: inactivity (time the connection has been idle), or no-llc (time without any Logical Link Control, type 2 [LLC2] sessions).

Before You Begin

Conventions

For more information on document conventions, see the Cisco Technical Tips Conventions.

Prerequisites

There are no specific prerequisites for this document.

Components Used

The information in this document is based on the software and hardware versions below.

Cisco IOS® Software release 12.0(7)T.
Cisco 2504 routers.

The information presented in this document was created from devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If you are working in a live network, ensure that you understand the potential impact of any command before using it.

Tanius

service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname tanius
!
!
username tatiasaurus password 0 cisco
ip subnet-zero
isdn switch-type basic-ts013
!
source-bridge ring-group 110
dlsw local-peer peer-id 10.64.3.67
dlsw remote-peer 0 tcp 10.64.3.161 keepalive 0 timeout 90 dynamic
!
interface Serial0
 no ip address
 no ip directed-broadcast
 no ip mroute-cache
 shutdown
 !
interface Serial1
 no ip address
 no ip directed-broadcast
 shutdown
!
interface TokenRing0
 ip address 10.64.3.67 255.255.255.240
 no ip directed-broadcast
 ring-speed 16
 source-bridge 500 1 110
 source-bridge spanning
!
interface BRI0
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 dialer pool-member 1
 isdn switch-type basic-ts013
 ppp authentication chap
!
interface Dialer1
 ip address 10.64.3.129 255.255.255.240
 no ip directed-broadcast
 encapsulation ppp
 dialer remote-name tatiasaurus
 dialer pool 1
 dialer-group 1
 ppp authentication chap
!
ip classless
ip route 10.64.3.160 255.255.255.240 Dialer1
!
access-list 101 permit tcp any eq 2065 any
access-list 101 permit tcp any any eq 2065
dialer-list 1 protocol ip list 101
!
line con 0
 transport input none
line aux 0

Tatiasaurus

service timestamps debug uptime
service timestamps log uptime
no service password-encryption
!
hostname tatiasaurus
!
!
username tanius password 0 cisco
ip subnet-zero
isdn switch-type basic-ts013
!
source-bridge ring-group 120
dlsw local-peer peer-id 10.64.3.161
dlsw remote-peer 0 tcp 10.64.3.67 keepalive 0 timeout 90 dynamic
!
!
interface Serial0
 no ip address
 no ip directed-broadcast
 no ip mroute-cache
 shutdown
!
interface Serial1
 no ip address
 no ip directed-broadcast
 shutdown
!
interface TokenRing0
 ip address 10.64.3.161 255.255.255.240
 no ip directed-broadcast
 ring-speed 16
 source-bridge 600 1 120
!
interface BRI0
 no ip address
 no ip directed-broadcast
 encapsulation ppp
 dialer pool-member 1
 isdn switch-type basic-ts013
 ppp authentication chap
!
interface Dialer1
 ip address 10.64.3.130 255.255.255.240
 no ip directed-broadcast
 encapsulation ppp
 dialer remote-name tanius
 dialer string 93551270
 dialer pool 1
 dialer-group 1
 ppp authentication chap
!
ip classless
ip route 10.64.3.64 255.255.255.240 10.64.3.129
ip route 10.64.3.129 255.255.255.255 Dialer1
!
access-list 101 permit tcp any eq 2065 any
access-list 101 permit tcp any any eq 2065
dialer-list 1 protocol ip list 101

line con 0
 transport input none
line aux 0
line vty 0 4
 login
!
end

tatiasaurus#

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