Point-to-Point Protocol over Ethernet (PPPoE) is a link layer protocol that transmits PPP datagrams through PPP sessions established over point-to-point connections on Ethernet networks. As a supplementary protocol of PPP, PPPoE provides access services for hosts on Ethernet networks, and implements user control and accounting.
As data services develop, the number of broadband users is growing explosively. To facilitate broadband user access, carriers use a variety of access modes, such as x digital subscriber line (xDSL), local area network (LAN), hybrid fiber coaxial (HFC), and wireless. To build an operable, manageable, and profitable broadband network in such a context, efficient user management is a key factor. PPPoE effectively resolves issues such as user access and accounting, and is popular among broadband access carriers.
PPP data packets are transmitted over Ethernet. In addition to Internet Protocol, PPP data packets can have other types of protocols encapsulated, even link layer protocols, such as Ethernet.
PPPoE access provides rich accounting data, such as the numbers of incoming and outgoing packets and bytes, and start and end time of connections.
PPPoE access supports assignment of both IPv4 and IPv6 addresses.
PPPoE access brings the following benefits to carriers:
Remote user access over Ethernet
Flexible access control and accounting