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I-D ACTION:draft-ietf-ipngwg-addrconf-privacy-04.txt



A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the IPNG Working Group of the IETF.

	Title		: Privacy Extensions for Stateless Address 
                          Autoconfiguration in IPv6
	Author(s)	: T. Narten, R. Draves
	Filename	: draft-ietf-ipngwg-addrconf-privacy-04.txt
	Pages		: 17
	Date		: 30-Nov-00
	
Nodes use IPv6 stateless address autoconfiguration to generate
addresses without the necessity of a DHCP server. Addresses are
formed by combining network prefixes with an interface identifier. On
interfaces that contain embedded IEEE Identifiers, 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.

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