PPP over Ethernet (PPPOE)

by Rene Molenaar 15 Comments

Scenario:

You are working for a small company as a network engineer and currently you are still using a dial-up

modem for Internet access. The company will upgrade the Internet access to a DSL connection and

your service provider promised they will send you a Cisco 800 series router so you can configure it

already for PPPoE. The problem is you never configured PPPoE before so it’s time to upgrade your

skills!

Goals:

• Do not configure any IP address on the Fast Ethernet interfaces.

• Router Artemis will be the PPPoE server (to emulate the service provider)

• Configure a DHCP pool on Router Artemis for the PPP connection, use the 192.168.12.0

subnet.

• Configure Router Artemis as a PPPoE server using the DHCP pool you just created. Use a

Virtual-Template and configure the 192.168.12.2 IP address on this router.

• Router Poseidon should get IP address 192.168.12.1 from the PPPoE server.

• Configure Router Poseidon as the PPPoE Client.

• Your end result should be a working PPPoE session and Router Poseidon should get an IP

address from DHCP.

• When your PPPoE connection is working, configure CHAP authentication:

Username: Poseidon

Password: VAULT

• Optional: Configure Router Artemis so PPPoE clients cannot initiate more than 5 sessions

within 1 minute for 10 minutes.

IOS:

c3640-jk9s-mz.124-16.bin

Topology: