Unified IPv4-in-IPv6 Softwire Customer Premises Equipment (CPE): A DHCPv6-Based Prioritization Mechanism (RFC8026)
Original Publication Date: 2016-Nov-01
Included in the Prior Art Database: 2016-Nov-16
Internet Society Requests For Comment (RFCs)
M. Boucadair: AUTHOR [+2]
IPv4 service continuity is one of the major technical challenges that must be considered during IPv6 migration. Over the past few years, a number of different approaches have been developed to assist with this problem (e.g., as described in [RFC6333], [RFC7596], and [RFC7597]). These approaches, referred to as "S46 mechanisms" in this document, exist in order to meet the particular deployment, scaling, addressing, and other requirements of different service providers' networks.
Internet Engineering Task Force (IETF) M. Boucadair Request for Comments: 8026 Orange Category: Standards Track I. Farrer ISSN: 2070-1721 Deutsche Telekom AG November 2016
Unified IPv4-in-IPv6 Softwire Customer Premises Equipment (CPE): A DHCPv6-Based Prioritization Mechanism
In IPv6-only provider networks, transporting IPv4 packets encapsulated in IPv6 is a common solution to the problem of IPv4 service continuity. A number of differing functional approaches have been developed for this, each having their own specific characteristics. As these approaches share a similar functional architecture and use the same data plane mechanisms, this memo specifies a DHCPv6 option, whereby a single instance of Customer Premises Equipment (CPE) can interwork with all of the standardized and proposed approaches to providing encapsulated IPv4-in-IPv6 services by providing a prioritization mechanism.
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 http://www.rfc-editor.org/info/rfc8026.
Farrer Standards Track [Page 1]
RFC 8026 OPTION_S46_PRIORITY DHCPv6 Option November 2016
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Table of Contents
1. Introduction . . . . . . . . . . . . . . ....