# Configuring Point-to-Point Protocol over Ethernet

This chapter describes how to configure the Point-to-Point Protocol (PPP) over Ethernet interfaces on E Series routers.

This chapter contains the following sections:

- Overview
- Platform Considerations
- References
- Access Nodes in Ethernet Aggregation Networks Overview
- ATM-to-Ethernet Interworking Overview
- Before You Configure PPPoE
- Configuring PPPoE over ATM
- Processing of IWF PPPoE Sessions with Duplicate MAC Addresses
- Guidelines for Configuring Duplicate Protection for IWF PPPoE Sessions
- Configuration Examples for ATM-to-Ethernet Interworking Functions
- Configuring PPPoE for Ethernet Modules
- Configuring PADM Messages
- Configuring PADN Messages
- Configuring PPPoE Service Name Tables
- Configuring PADS Packet Content
- Configuring PPPoE Remote Circuit ID Capture
- Monitoring PPPoE
- Troubleshooting