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RFC 7136
Title: Significance of IPv6 Interface Identifiers
Author: B. Carpenter, S. Jiang
Status: Standards Track
Stream: IETF
Date: February 2014
Mailbox: brian.e.carpenter@gmail.com,
jiangsheng@huawei.com
Pages: 10
Characters: 23172
Updates: RFC 4291
I-D Tag: draft-ietf-6man-ug-06.txt
URL: http://www.rfc-editor.org/rfc/rfc7136.txt
The IPv6 addressing architecture includes a unicast interface
identifier that is used in the creation of many IPv6 addresses.
Interface identifiers are formed by a variety of methods. This
document clarifies that the bits in an interface identifier have no
meaning and that the entire identifier should be treated as an opaque
value. In particular, RFC 4291 defines a method by which the
Universal and Group bits of an IEEE link-layer address are mapped
into an IPv6 unicast interface identifier. This document clarifies
that those two bits are significant only in the process of deriving
interface identifiers from an IEEE link-layer address, and it updates
RFC 4291 accordingly.
This document is a product of the IPv6 Maintenance Working Group of the IETF.
This is now a Proposed Standard.
STANDARDS TRACK: 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.
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