Deprecating Site Local Addresses (RFC3879)
Original Publication Date: 2004-Sep-01
Included in the Prior Art Database: 2004-Sep-10
Internet Society Requests For Comment (RFCs)
C. Huitema: AUTHOR [+2]
This document describes the issues surrounding the use of IPv6 site- local unicast addresses in their original form, and formally deprecates them. This deprecation does not prevent their continued use until a replacement has been standardized and implemented.
Network Working Group C. Huitema
Request for Comments: 3879 Microsoft
Category: Standards Track B. Carpenter
Deprecating Site Local Addresses
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright (C) The Internet Society (2004).
This document describes the issues surrounding the use of IPv6 site-
local unicast addresses in their original form, and formally
deprecates them. This deprecation does not prevent their continued
use until a replacement has been standardized and implemented.
For some time, the IPv6 working group has been debating a set of
issues surrounding the use of "site local" addresses. In its meeting
in March 2003, the group reached a measure of agreement that these
issues were serious enough to warrant a replacement of site local
addresses in their original form. Although the consensus was far
from unanimous, the working group confirmed in its meeting in July
2003 the need to document these issues and the consequent decision to
deprecate IPv6 site-local unicast addresses.
Site-local addresses are defined in the IPv6 addressing architecture
[RFC3513], especially in section 2.5.6.
The remainder of this document describes the adverse effects of
site-local addresses according to the above definition, and formally
Huitema & Carpenter Standards Track [Page 1]
RFC 3879 Deprecating Site Local Addresses September 2004
Companion documents will describe the goals of a replacement solution
and specify a replacement solution. However, the formal deprecation
allows existing usage of site-local addresses to continue until the
replacement is standardized and implemented.
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in BCP 14, RFC 2119
2. Adverse Effects of Site...