Document ID: 12886
Updated: Nov 23, 2007
Contents
Introduction
The sample configurations in this document show a Cisco 827 Digital Subscriber Line (DSL) Router connecting to a Cisco 6130 Digital Subscriber Line Access Multiplexer (DSLAM) and terminating on a Cisco 6400 Universal Access Concentrator (UAC). Each configuration uses Point-to- Point Protocol over Asynchronous Transfer Mode (PPPoA). The Asynchronous Transfer Mode (ATM) interface is configured for AALMUX PPP encapsulation.
One configuration shows PPPoA using Challenge Handshake Authentication Protocol (CHAP). The second configuration shows PPP over ATM using Password Authentication Protocol (PAP).
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.
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Cisco 827-4V customer premises equipment (CPE) IOS® Software Release 12.1(1)XB
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Cisco 6400 UAC-NRP IOS Software Release 12.0(7)DC
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Cisco 6400 UAC-NSP IOS Software Release 12.0(4)DB
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Cisco 6130 DSLAM-NI2 IOS Software Release 12.1(1)DA
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.
Configure
In this section, you are presented with the information to configure the features described in this document.
Note: To find additional information on the commands used in this document, use the Command Lookup Tool (registered customers only) .
Network Diagram
This document uses the network setup shown in the diagram below.
PPPoA Using CHAP Configurations
When using interface virtual-template, configure only ppp chap hostname username and ppp chap password password . The ppp authentication chap callin command is not supported. In this example interface dialer is used, which is not affected.
| Cisco 827 |
|---|
Current configuration: ! version 12.1 ! service timestamps debug datetime msec service timestamps log datetime msec ! hostname R1 ! ip subnet-zero ! interface Ethernet0 ip address 10.0.0.1 255.0.0.0 no ip directed-broadcast no ip mroute-cache ! interface ATM0 no ip address no ip directed-broadcast no ip mroute-cache no atm ilmi-keepalive pvc 1/150 encapsulation aal5mux ppp dialer dialer pool-member 1 ! hold-queue 224 in ! interface Dialer0 ip address 172.18.0.1 255.255.0.0 no ip directed-broadcast encapsulation ppp dialer pool 1 dialer-group 1 ppp authentication chap callin ppp chap hostname username ppp chap password password ! ip classless ! ip route 0.0.0.0 0.0.0.0 Dialer0 ! dialer-list 1 protocol ip permit ! end |
| Cisco Access 6400 NRP1 |
|---|
username username password password !--- The username and password values must match !--- the username and password values of the remote device. ! interface ATM0/0/0.200 point-to-point no ip directed-broadcast no ip route-cache pvc 1/301 encapsulation aal5mux ppp Virtual-Template11 ! interface Virtual-Template11 ip address 172.18.0.2 255.255.0.0 no ip directed-broadcast ppp authentication chap ! ip route 10.0.0.1 255.255.255.255 172.18.0.1 |
PPPoA Using PAP Configuration
When using interface virtual-template, configure only ppp pap sent-username username password password . The ppp authentication pap callin command is not supported. In this example interface dialer is used, which is not affected.
| Cisco 827 |
|---|
version 12.1 ! service timestamps debug datetime msec service timestamps log datetime msec ! hostname R1 ! ip subnet-zero ! interface Ethernet0 ip address 10.0.0.1 255.0.0.0 no ip directed-broadcast no ip mroute-cache ! interface ATM0 no ip address no ip directed-broadcast no ip mroute-cache no atm ilmi-keepalive pvc 1/150 encapsulation aal5mux ppp dialer dialer pool-member 1 ! hold-queue 224 in ! interface Dialer0 ip address 172.18.0.1 255.255.0.0 no ip directed-broadcast encapsulation ppp dialer pool 1 dialer-group 1 ppp authentication pap callin ppp pap sent-username username password password ! ip classless ! ip route 0.0.0.0 0.0.0.0 Dialer0 ! no ip http server ! dialer-list 1 protocol ip permit ! voice-port 1 timing hookflash-in 0 ! voice-port 2 timing hookflash-in 0 ! voice-port 3 timing hookflash-in 0 ! voice-port 4 timing hookflash-in 0 |
| Cisco Access 6400 NRP1 |
|---|
username username password password !--- The username and password values must match !--- the username and password values of the remote device. ! interface ATM0/0/0.200 point-to-point no ip directed-broadcast no ip route-cache pvc 1/301 encapsulation aal5mux ppp Virtual-Template11 ! interface Virtual-Template11 ip address 172.18.0.2 255.255.0.0 no ip directed-broadcast ppp authentication pap ! ip route 10.0.0.1 255.255.255.255 172.18.0.1 |
Verify
There is currently no verification procedure available for this configuration.
Troubleshoot
There is currently no specific troubleshooting information available for this configuration.
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Refer to Cisco Technical Tips Conventions for information on conventions used in this document.