http://y5wnzw4e6i7srm2gqadlow5anhlaj5avdkzbwzbmrxwkygxdp7ffieqd.onion/blog/noticer-noticing-ipv6.html
If/when IPv6 becomes the de facto standard, the implications of this can be... spooky. Who is assigning the IPv6 addresses to each of the internet devices? The ISP most likely (albeit through an automated system). This seems like it can be used in a way for an ISP to be able to tell if there is a new internet device connected to the router (if Mr.