RFC 3817 · INFORMATIONAL · 2004

Layer 2 Tunneling Protocol Active Discovery Relay for PPP over Ethernet

Overview

RFC 3817, “Layer 2 Tunneling Protocol Active Discovery Relay for PPP over Ethernet”, is an Informational document published in June 2004 by W. Townsley, R. da Silva. The canonical text is published by the RFC Editor.

Abstract

The Point-to-Point Protocol (PPP) provides a standard method for transporting multi-protocol datagrams over point-to-point links. Layer Two Tunneling Protocol (L2TP), facilitates the tunneling of PPP packets across an intervening packet-switched network. And yet a third protocol, PPP over Ethernet (PPPoE) describes how to build PPP sessions and to encapsulate PPP packets over Ethernet. L2TP Active Discovery Relay for PPPoE describes a method to relay Active Discovery and Service Selection functionality from PPPoE over the reliable control channel within L2TP. Two new L2TP control message types and associated PPPoE-specific Attribute Value Pairs (AVPs) for L2TP are defined. This relay mechanism provides enhanced integration of a specific feature in the PPPoE tunneling protocol with L2TP. This memo provides information for the Internet community.

Abstract as published in the RFC, via rfc-editor.org.

What “Informational” means

Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.

Read this RFC

The canonical text of RFC 3817 is hosted at rfc-editor.org. Available in TXT,HTML.

Other RFCs from 2004

Who Is Online

In total there are 65 users online: 1 registered, 55 guests and 9 bots.

Most users ever online was 5,555 on 17 Jul 2026, 3:23 am.

Bots: AhrefsBot Applebot Baiduspider Bingbot Googlebot Other Bot Other Crawler PetalBot SemrushBot

Users active in the past 15 minutes. Total registered members: 372