On Jul 26, 2011, at 8:29 PM, Matt Addison wrote:
On Jul 26, 2011, at 20:08, Valdis.Kletnieks@vt.edu wrote:
There's a subtle but significant difference between what cookies give you, which is "This is the same entity that visited our page at 7:48PM last Tuesday", and what easily trackable IP addresses give you, which is "This is an entity located at 1948 Durhof Street".
With how much identifying information user agents leak nowadays [1] this is almost a moot point. If you can be uniquely identified through the user agent- does it really matter that they can uniquely ID the household as well based on prefix information?
That depends on what happens when ISPs do start giving residences /48s and ARIN starts asking for the SWIP details on blocks that large. Matthew Kaufman