On Tuesday, August 27, 2002, at 05:07 PM, Marshall Eubanks wrote:
On Tue, 27 Aug 2002 14:43:38 -0400 Peter John Hill <peterjhill@cmu.edu> wrote:
On Tuesday, August 27, 2002, at 10:41 AM, Joe Baptista wrote:
Since it so easy for a host (relative to ipv4) to have multiple ip addresses, I like what Microsoft has done. If told by a router, a Win XP box will assign itself a global unicast address using EUI-64. It will also create a global unicast anonymous address. This will not be tied to the hardware, and the OS will also limit how long it uses that
Wasn't this described in an Internet draft ? Do you know what the status is - I cannot seem to find it.
http://www.ietf.org/rfc/rfc3041.txt Abstract Nodes use IPv6 stateless address autoconfiguration to generate addresses without the necessity of a Dynamic Host Configuration Protocol (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.
Marshall
address before deprecating that address and creating a new preferred anonymous address. I can see servers using the EUI-64 address, while clients use the anonymous address. It will allow servers to narrow down who is accessing their servers to a 64 bit subnet. That will be good enough for most statistics, but will make it more difficult to do the scarier tracking of users.
I have noticed that the Linux and Mac OS X ipv6 implementations so not create the private addresses automatically. Peter Hill Network Engineer Carnegie Mellon University