The IPv6 Tunnel Payload Forwarding (TPF) Option
draft-bonica-6man-vpn-dest-opt-12

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6man                                                           R. Bonica
Internet-Draft                                          Juniper Networks
Intended status: Standards Track                               Y. Kamite
Expires: September 7, 2020                NTT Communications Corporation
                                                                L. Jalil
                                                                 Verizon
                                                                 Y. Zhou
                                                               ByteDance
                                                                 G. Chen
                                                                   Baidu
                                                           March 6, 2020

            The IPv6 Tunnel Payload Forwarding (TPF) Option
                   draft-bonica-6man-vpn-dest-opt-12

Abstract

   This document explains how IPv6 options can be used in IPv6 tunnels.
   It also defines the IPv6 Tunnel Payload Forwarding (TPF) option.

Status of This Memo

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   This Internet-Draft will expire on September 7, 2020.

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   This document is subject to BCP 78 and the IETF Trust's Legal
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   carefully, as they describe your rights and restrictions with respect

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   to this document.  Code Components extracted from this document must
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Requirements Language . . . . . . . . . . . . . . . . . . . .   4
   3.  The IPv6 Tunnel Payload Forwarding (TPF) Option . . . . . . .   4
   4.  TPF Information Determines Next-Protocol Engine Behavior  . .   5
   5.  TPF Information Semantics . . . . . . . . . . . . . . . . . .   5
   6.  Virtual Private Networking (VPN) Applications . . . . . . . .   6
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   7
   10. Contributors  . . . . . . . . . . . . . . . . . . . . . . . .   7
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     11.1.  Normative References . . . . . . . . . . . . . . . . . .   7
     11.2.  Informative References . . . . . . . . . . . . . . . . .   8
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   This document explains how IPv6 options [RFC8200] can be used in IPv6
   tunnels.  It also defines the IPv6 Tunnel Payload Forwarding (TPF)
   option.

   An IPv6 tunnel [RFC2473] connects two nodes, called the entry-point
   and the exit-point.  The entry-point receives a packet and
   encapsulates it in a Tunnel IPv6 Header.  Figure 1 depicts the
   encapsulation.

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                             +----------------------------------//-----+
                             | Original |                              |
                             |          |   Original Packet Payload    |
                             | Header   |                              |
                             +----------------------------------//-----+
                              <            Original Packet            >
                                               |
                                               v
        <Tunnel IPv6 Headers> <       Original Packet                 >

       +---------+ - - - - - +-------------------------//--------------+
       | IPv6    | IPv6      |                                         |
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