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RFC 4941
Title: Privacy Extensions for Stateless Address
Autoconfiguration in IPv6
Author: T. Narten, R. Draves,
S. Krishnan
Status: Standards Track
Date: September 2007
Mailbox: narten@us.ibm.com,
richdr@microsoft.com,
suresh.krishnan@ericsson.com
Pages: 23
Characters: 56699
Obsoletes: RFC3041
See-Also:
I-D Tag: draft-ietf-ipv6-privacy-addrs-v2-05.txt
URL: http://www.rfc-editor.org/rfc/rfc4941.txt
Nodes use IPv6 stateless address autoconfiguration to generate
addresses using a combination of locally available information and
information advertised by routers. Addresses are formed by combining
network prefixes with an interface identifier. On an interface that
contains an embedded IEEE Identifier, the interface identifier is
typically derived from it. On other interface types, the interface
identifier is generated through other means, for example, via random
number generation. This document describes an extension to IPv6
stateless address autoconfiguration for interfaces whose interface
identifier is derived from an IEEE identifier. Use of the extension
causes nodes to generate global scope addresses from interface
identifiers that change over time, even in cases where the interface
contains an embedded IEEE identifier. Changing the interface
identifier (and the global scope addresses generated from it) over
time makes it more difficult for eavesdroppers and other information
collectors to identify when different addresses used in different
transactions actually correspond to the same node. [STANDARDS TRACK]
This document is a product of the IP Version 6 Working Group
Working Group of the IETF.
This is now a Draft Standard Protocol.
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
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