[ipv6hackers] Generation of Interface-IDs in Windows 7

Fernando Gont fgont at si6networks.com
Thu Nov 24 18:41:15 CET 2011

On 11/24/2011 07:44 AM, Simon Perreault wrote:
> Guys, you are both right.
> - Windows Vista & 7 do not use EUI-64. Instead, the first time an
> interface is brought up, they generate a random IID that they
> permanently store in the registry.

Ok, so this is not as bad as doing EUI-64... but if privacy addresses
were disabled (e.g., as a result of an organization's policy (*)), then
you could be tracked.

(*) Privacy addresses make logging harder..

Fernando Gont
SI6 Networks
e-mail: fgont at si6networks.com
PGP Fingerprint: 6666 31C6 D484 63B2 8FB1 E3C4 AE25 0D55 1D4E 7492

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