Cisco DSL Router Configuration and Troubleshooting Guide - Cisco DSL Router: RFC1483 Pure Bridging

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Updated:September 25, 2006

Document ID:71127

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Introduction

Prerequisites

Requirements

Components Used

Conventions

Tasks to Perform

Configure

Verify

Troubleshoot

Related Information

Manually configure PC clients with the information provided by your ISP.
- IP addresses and subnet masks.
- Default gateway.
- Domain Name Server (DNS) IP addresses.
Configure no ip routing and bridge 1 protocol ieee on the Cisco Digital Subscriber Line (DSL) Router.
Configure the ATM interface (the Asymmetric Digital Subscriber Line (ADSL) interface) with an ATM permanent virtual circuit (PVC) and encapsulation.
Configure bridge-group 1 on the ATM and Ethernet interfaces.

Note: When the Cisco DSL Router is in bridge mode, Network Address Translation (NAT) and Dynamic Host Control Protocol (DHCP) server configurations are not supported.

Configure

Tip: If you are not familiar with how to configure Cisco devices and would like to follow a step-by-step configuration, refer to Step-by-Step Configuration of RFC1483 Pure Bridging.

Cisco DSL Router with RFC1483 Pure Bridging
!--- Comments contain explanations and additional information. service timestamps debug datetime msec service timestamps log datetime msec ! no ip routing ! interface ethernet0 no shut no ip directed-broadcast bridge-group 1 ! interface atm0 no shut no ip address no ip directed-broadcast no atm ilmi-keepalive pvc <vpi/vci> encapsulation aal5snap !--- Common PVC values supported by ISPs are 0/35 or 8/35. !--- Confirm your PVC values with your ISP. ! bridge-group 1 ! bridge 1 protocol ieee ! end

Cisco DSL Router with RFC1483 Pure Bridging


!--- Comments contain explanations and additional information.


service timestamps debug datetime msec
service timestamps log datetime msec
!
no ip routing
!
interface ethernet0
 no shut
 no ip directed-broadcast
 bridge-group 1
!
interface atm0
 no shut
 no ip address
 no ip directed-broadcast
 no atm ilmi-keepalive
 pvc <vpi/vci>
  encapsulation aal5snap
 
!--- Common PVC values supported by ISPs are 0/35 or 8/35. !--- Confirm your PVC values with your ISP.

 !
 bridge-group 1
!
bridge 1 protocol ieee
!
end