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GRE-in-UDP Encapsulation (RFC8086) Disclosure Number: IPCOM000249616D
Original Publication Date: 2017-Mar-01
Included in the Prior Art Database: 2017-Mar-08
Document File: 54 page(s) / 59K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

L. Yong: AUTHOR [+4]


This document specifies a generic GRE-in-UDP encapsulation for tunneling network protocol packets across an IP network based on Generic Routing Encapsulation (GRE) [RFC2784] [RFC7676] and User Datagram Protocol (UDP) [RFC768] headers. The GRE header indicates the payload protocol type via an EtherType [RFC7042] in the protocol type field, and the source port field in the UDP header may be used to provide additional entropy.

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Internet Engineering Task Force (IETF)                      L. Yong, Ed. Request for Comments: 8086                           Huawei Technologies Category: Standards Track                                      E. Crabbe ISSN: 2070-1721                                                   Oracle                                                                    X. Xu                                                      Huawei Technologies                                                               T. Herbert                                                                 Facebook                                                               March 2017

                         GRE-in-UDP Encapsulation


   This document specifies a method of encapsulating network protocol    packets within GRE and UDP headers.  This GRE-in-UDP encapsulation    allows the UDP source port field to be used as an entropy field.    This may be used for load-balancing of GRE traffic in transit    networks using existing Equal-Cost Multipath (ECMP) mechanisms.    There are two applicability scenarios for GRE-in-UDP with different    requirements: (1) general Internet and (2) a traffic-managed    controlled environment.  The controlled environment has less    restrictive requirements than the general Internet.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

Yong, et al.                 Standards Track                    [Page 1]
 RFC 8086                GRE-in-UDP Encapsulation              March 2017

 Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal    Provisions Relating to IETF Documents    ( in effect on the date of    publication of this document.  Please review these...