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Security Implications of IPv6 on IPv4 Networks (RFC7123)

IP.com Disclosure Number: IPCOM000234855D
Original Publication Date: 2014-Feb-01
Included in the Prior Art Database: 2014-Feb-11
Document File: 38 page(s) / 42K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

F. Gont: AUTHOR [+2]

Abstract

Most general-purpose operating systems implement and enable native IPv6 [RFC2460] support and a number of transition/coexistence technologies by default. Support of IPv6 by all nodes is intended to become best current practice [RFC6540]. Some enterprise networks might, however, choose to delay active use of IPv6.

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Internet Engineering Task Force (IETF)                           F. Gont Request for Comments: 7123                          SI6 Networks/UTN-FRH Category: Informational                                           W. Liu ISSN: 2070-1721                                      Huawei Technologies                                                            February 2014

              Security Implications of IPv6 on IPv4 Networks

Abstract

   This document discusses the security implications of native IPv6    support and IPv6 transition/coexistence technologies on "IPv4-only"    networks and describes possible mitigations for the aforementioned    issues.

Status of This Memo

   This document is not an Internet Standards Track specification; it is    published for informational purposes.

   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).  Not all documents    approved by the IESG are a candidate for any level of Internet    Standard; see Section 2 of RFC 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at    http://www.rfc-editor.org/info/rfc7123.

Copyright Notice

   Copyright (c) 2014 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    (http://trustee.ietf.org/license-info) in effect on the date of    publication of this document.  Please review these documents    carefully, as they describe your rights and restrictions with respect    to this document.  Code Components extracted from this document must    include Simplified BSD License text as described in Section 4.e of    the Trust Legal Provisions and are provided without warranty as    described in the Simplified BSD License.

Gont & Liu                    Informational                     [Page 1]
 RFC 7123           Sec. Impl. of IPv6 on IPv4 Networks     February 2014

 Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2

   2.  Security Implications of Native IPv6 Support  . . . . . . . .   4

     2.1.  Filtering Native IPv6 Traffic . . . . . . . . . . . . . .   4

   3.  Security Implications of Tunneling Mechanisms . . . . . . . .   5

     3.1.  Filtering 6in4  . . . . . . . . . . . . . . . . . . . . .   6

     3.2.  Filtering 6over4  . . . . . . . . . . . . . . . ....