Contents

Introduction

Before You Begin

Conventions

Prerequisites

Components Used

Configure

Network Diagram

Configurations

Verify

Troubleshoot

Related Information

Introduction

This sample configuration shows 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).

The Cisco 827 is configured as follows:

- With Integrated Routing and Bridging (IRB)

- Using encapsulation

- With Network Address Translation (NAT)

- As a Dynamic Host Configuration Protocol (DHCP) server that will lease IP addresses to its local Ethernet clients

The Cisco 6400 is configured with IRB.

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 827-4V Customer Premises Equipment (CPE) IOS® Software Release 12.1(1)XB

- Cisco 6400 UAC-Node Route Processor (NRP) IOS Software Release 12.0(7)DC

- Cisco 6400 UAC-Node Switch Processor (NSP) IOS Software Release 12.0(4)DB

- 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.

Configurations

This document uses the configurations shown below.

- Cisco 827

- Cisco Access 6400 NRP

Cisco 827

Current configuration:

!

version 12.0

service timestamps debug datetime msec

service timestamps log datetime msec

!

hostname R1

!

ip subnet-zero

!

ip dhcp excluded-address 10.0.0.1

!

ip dhcp pool

<pool name>

network 10.0.0.0 255.0.0.0

default-router 10.0.0.1

!

bridge irb

!

interface Ethernet0

ip address 10.0.0.1 255.0.0.0

no ip directed-broadcast

ip nat inside

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 aal5snap

!

bundle-enable

bridge-group 1

hold-queue 224 in

!

interface BVI1

ip address 172.16.0.1 255.255.0.0

no ip directed-broadcast

ip nat outside

!

ip nat inside source list 1 interface BVI1 overload

ip classless

ip route 0.0.0.0 0.0.0.0 172.16.0.2

no ip http server

!

access-list 1 permit 10.0.0.0 0.255.255.255

bridge 1 protocol ieee

bridge 1 route ip

!

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

!

end

Cisco Access 6400 NRP

Current configuration:

!

version 12.0

service timestamps debug datetime msec

service timestamps log datetime msec

no service password-encryption

!

hostname NRP

!

ip subnet-zero

!

bridge irb

!

interface ATM0/0/0

no ip address

no ip directed-broadcast

no ip route-cache

no ip mroute-cache

no atm ilmi-keepalive

!

interface ATM0/0/0.300 point-to-point

no ip directed-broadcast

no ip route-cache

pvc 1/150

encapsulation aal5snap

!

bridge-group 1

!

interface Ethernet0/0/1

no ip address

no ip directed-broadcast

!

interface Ethernet0/0/0

no ip directed-broadcast

!

interface FastEthernet0/0/0

no ip address

no ip directed-broadcast

full-duplex

!

interface BVI1

ip address 172.16.0.2 255.255.0.0

no ip directed-broadcast

!

no ip http server

!

bridge 1 protocol ieee

bridge 1 route ip

!

end

In order to make sure that the wireless clients can communicate among them, configure the bridge-group 1 command on the radio interface.

When the bridge-group 1 command is issued on the radio interface, these commands are automatically issued:

- bridge-group 1 subscriber-loop-control

- bridge-group 1 spanning-disabled

- bridge-group 1 block-unknown-source

Do not disable these commands. These commands are required for the wireless communication to occur. If these commands are disabled, wireless clients may not be able to communicate with each other.

Also, if the bridge-group command is not configured for the VLAN, the wireless clients are not able to get the IP address from the Dynamic Host Configuration Protocol (DHCP) server on one of the VLANs.

Verify

There is currently no verification procedure available for this configuration.

Troubleshoot

There is currently no specific troubleshooting information available for this configuration.

Related Information

- Cisco DSL Technology Support Information

- Cisco DSL Product Support Information

- Technical Support - Cisco Systems