Troubleshooting guide

Cisco DSL Router – PC Acting as a PPPoE Client
In this implementation, your Cisco Digital Subscriber Line (DSL) Router is unable to provide value−added
services and acts as a simple Asymetric Digital Subscriber Line (ADSL) to Ethernet bridge. Therefore, you
must load Point−to−Point−Protocol over Ethernet (PPPoE) client software on each PC on the LAN that
requires access to the Internet.
Tip: If you are not familiar with configuring Cisco devices and would like to follow a step−by−step
configuration, click here.
Tasks to Perform
Configure the ATM interface (the ADSL interface) of the Cisco DSL Router with an ATM permanent
virtual circuit (PVC) and encapsulation.
•
Configure bridging on your Cisco DSL Router.•
Disable IP routing on your Cisco DSL Router.•
Load PPPoE client software on each PPPoE client PC.•
Configure each PPPoE client per instructions from the software vendor or Internet Service Provider
(ISP); for example, domain name, username, and password).
•
Configuration
Tip: If you are not familiar with configuring Cisco devices and would like to follow a step−by−step
configuration, click here.
Cisco DSL Router with a PC Acting as a PPPoE Client
!−−− 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 address
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
Cisco DSL Router Configuration and Troubleshooting Guide