Many network providers and individuals who are working at home use Digital Subscriber Line (DSL) technology to provide fast network access. To support DSL users, Solaris PPP 4.0 includes the PPP over Ethernet (PPPoE) feature. PPPoE technology enables multiple hosts to run PPP sessions over one Ethernet link to one or more destinations.
If one of the following factors applies to your situation, you should use PPPoE:
You support DSL users, possibly including yourself. Your DSL service provider might require users to configure a PPPoE tunnel to receive services over the DSL line.
Your site is an ISP that intends to offer PPPoE to customers.
This section introduces terms that are associated with PPPoE and an overview of a basic PPPoE topology.