PPPoE/v6 Administrator's Guide

Introduction
PPPoE Overview
Chapter 1 11
PPPoE Overview
PPPoE allows you to connect multiple hosts at a remote location through
the same customer access device, and to reduce the cost of providing
dial-up services using Point-to-Point Protocol (PPP).
PPPoE, as described in RFC 2516, enables broadband service providers
to authenticate users and to maintain the familiar dial-up experience for
users when they connect to the Internet through a broadband modem.
This framework allows each host to use its own PPP stack and provide a
user-friendly interface to implement access control and other
functionality on a per-user basis.
You can discard permanent connections and make optimal use of the IP
address pool. With a cost-effective LAN technology such as Ethernet, and
the demonstrated scalability and administrative controls of PPP, you can
deploy Internet services in your network environment with ease.