Subj : IPv6 and privacy To : Markus Reschke From : Michiel van der Vlist Date : Sat Jan 10 2015 01:24:34 Hello Markus, On Friday January 09 2015 11:59, you wrote to me: MvdV>> Dynamic addresses are a nuisance when running servers and they MvdV>> are of very little help for preserving privacy. It is of no use MvdV>> against governments or the NSA. It is also of little help MvdV>> against Google et al. There are so many other ways to identify MvdV>> a user than just the IP number. MR> I fully agree. SLAAC is based on the NIC's MAC address, it's a dead MR> give-away. Indeed it is. But when you are running servers - like we all do in Fdionet - there is no way to hide. And the so called privacy extensions are a joke as well. It may help to avoid being followed when traveling with a mobile device, but for a fixed connection, the prefix will lead to your home anyway. MR> Cookies, super-cookies, cache spotting, the entropy of your MR> web browser and so on. The problem is that a lot of people think MR> dynamic prefixes create privacy, like their router would be sprinkled MR> with the security fairy's magic dust. My original remark was meant MR> ironically. Ah, I missed the irony. Sorry... MvdV>> Why a new prefix every six month? For privacy that is far too MvdV>> long a period to be of use. MR> MR> My provider has a nice solution for customers who realy care about MR> their privacy. You can log into the customer support web interface and MR> request a new prefix inside an 8 bit range. An 8 bit range? But that's within the /56 or/48 that you would have been assigned anyway. I can see they really thought about that... Cheers, Michiel --- GoldED+/W32-MSVC 1.1.5-b20130111 * Origin: 2001:470:1f15:1117::1 (2:280/5555) .