{
  "draft": "draft-dasilva-l2tp-relaysvc-08",
  "doc_id": "RFC3817",
  "title": "Layer 2 Tunneling Protocol (L2TP) Active Discovery Relay for PPP over Ethernet (PPPoE)",
  "authors": [
    "W. Townsley",
    "R. da Silva"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "17",
  "pub_status": "INFORMATIONAL",
  "status": "INFORMATIONAL",
  "source": "Layer Two Tunneling Protocol Extensions",
  "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.",
  "pub_date": "June 2004",
  "keywords": [
    "point-to-point"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC3817",
  "errata_url": null
}