Technical Summary
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 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.
Working Group Summary
This document is a work item of the IPv6 WG.
The IPv6 working group has done extensive review of this document and
this document reflects the consensus of the group.
Protocol Quality
This document has been reviewed by members of the ipv6@ietf.org
mailing list and by the working group chairs.
This document has been reviewed for the IESG by Margaret Wasserman.
The implementation report is available at
http://www.ietf.org/IESG/Implementations/implement_draft-ietf-ipv6-privacy-addrs
-v2.txt
Note to RFC Editor
In section 3.3 "Generating Temporary Addresses" Step 1
line 8 replace the text "TEMP_VALID_LIFETIME - DESYNC_FACTOR"
with "TEMP_VALID_LIFETIME"