Windows 7 and SLAAC?
tme at americafree.tv
Tue Mar 30 19:04:57 CEST 2010
On Mar 30, 2010, at 12:18 PM, Sam Wilson wrote:
> On 30 Mar 2010, at 12:54, David Horn wrote:
>> On Tue, Mar 30, 2010 at 7:27 AM, Gert Doering <gert at space.net> wrote:
>>> I did an IPv6 training for a customer today, and discovered
>>> interesting - Windows 7 doesn't use the MAC address of an interface
>>> for EUI64-based stateless autoconfiguration, but "something else".
>> Microsoft has a "Cable Guy" article that describes Vista/Win 7
>> autoconf behavior, including the netsh CLI interface syntax for this
>> particular setting.
>> netsh interface ipv6 set global randomize identifiers=disabled
>> more information.
> That's a very useful article. I can't find in it (at a quick
> glance) anything that says whether the random address generation
> logic tries to generate the same (set of) random address(es) each
> time it is initialised. That would be a useful property for keeping
> tabs on machines and would save the hassle of DDNS and the like.
I would assume that these are not constant.
RFCs 4941 describes "privacy extensions" that yield changing (pseudo)
random interface IDs and RFC 5157 provides a background into why this
is could be a good thing.
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