A protocol that encapsulates PPP frames in Ethernet frames to allow multiple hosts on a shared Ethernet to open PPP sessions to multiple destinations via one or more bridging modems. PPPoE is used primarily in cable modems, wireless devices, and ADSL broadband local loops for Internet access and is specified in RFC 2516. See also ADSL, broadband, cable modem, encapsulate, host, Internet, local loop, and PPP.
(Point-to-Point Protocol Over Ethernet) Using the PPP dial-up protocol with Ethernet as the transport. Used by many DSL providers, PPPoE supports the protocol layers and authentication widely used in PPP and enables a point-to-point connection to be established in the normally multipoint architecture of Ethernet. A discovery process in PPPoE determines the Ethernet MAC address of the remote device in order to establish a session. See PPP, Ethernet and PPPoA.