SIIT-DC: Stateless IP/ICMP Translation for IPv6 Data Center Environments (RFC7755)
Original Publication Date: 2016-Feb-01
Included in the Prior Art Database: 2016-Feb-18
Internet Society Requests For Comment (RFCs)
Historically, dual stack [RFC4213] [RFC6883] has been the recommended way to transition from a legacy IPv4-only environment to one capable of serving IPv6 users. However, for IDC operators, dual-stack operation has a number of disadvantages compared to single-stack operation. In particular, running two protocols rather than one results in increased complexity and operational overhead with little return on investment for as long as large parts of the public Internet remains predominantly IPv4 only. Furthermore, the dual- stack approach does not in any way help with the depletion of the IPv4 address space, which at the time of writing is a pressing concern in most parts of the world.
Internet Engineering Task Force (IETF) T. Anderson Request for Comments: 7755 Redpill Linpro Category: Informational February 2016 ISSN: 2070-1721
SIIT-DC: Stateless IP/ICMP Translation for IPv6 Data Center Environments
This document describes the use of the Stateless IP/ICMP Translation Algorithm (SIIT) in an IPv6 Internet Data Center (IDC). In this deployment model, traffic from legacy IPv4-only clients on the Internet is translated to IPv6 upon reaching the IDC operator's network infrastructure. From that point on, it may be treated the same as traffic from native IPv6 end users. The IPv6 endpoints may be numbered using arbitrary (non-IPv4-translatable) IPv6 addresses. This facilitates a single-stack IPv6-only network infrastructure, as well as efficient utilization of public IPv4 addresses.
The primary audience is IDC operators who are deploying IPv6, running out of available IPv4 addresses, and/or feeling that dual stack causes undesirable operational complexity.
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/rfc7755.
Anderson Informational [Page 1]
RFC 7755 SIIT-DC February 2016
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Table of Contents
1. Introduction . . . . . . . . . . . . . . ....