Point-to-Point Protocol over Ethernet

The Point-to-Point Protocol over Ethernet (PPPoE) is a network protocol for encapsulating Point-to-Point Protocol (PPP) frames inside Ethernet frames. It appeared in 1999, in the context of the boom of DSL as the solution for tunneling packets over the DSL connection to the Internet service provider's (ISP's) IP network, and from there to the rest of the Internet.