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RFC 3817
Title: Layer 2 Tunneling Protocol (L2TP) Active Discovery
Relay for PPP over Ethernet (PPPoE)
Author(s): W. Townsley, R. da Silva
Status: Informational
Date: June 2004
Mailbox: mark@townsley.net, rdasilva@va.rr.com
Pages: 17
Characters: 37765
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-dasilva-l2tp-relaysvc-08.txt
URL: ftp://ftp.rfc-editor.org/in-notes/rfc3817.txt
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 document is a product of the Layer Two Tunneling Protocol
Extensions Working Group of the IETF.
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not specify an Internet standard of any kind. Distribution of this
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USC/Information Sciences Institute
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