“At the RIPE meeting in Dubai two weeks ago, Google presented results from a study about how IPv6-capable ‘ordinary users’ are. And the results are surprising. While an earlier study by Arbor Networks showed only 0.0026 percent of all traffic was IPv6 enabled, Google determined that world wide, 0.238 percent of their users’ systems have IPv6 enabled and prefer to use IPv6 over IPv4 where possible,” Iljitsch van Beijnum reports for Ars Technica.
“In the case of the US, the relatively high IPv6 penetration seems to be the result of Apple’s market share being much higher there than elsewhere in the world. It turns out that no less than 52 percent of all IPv6 users have a Mac and use 6to4. Apparently, those users have an Airport Extreme Wi-Fi base station / home router, which has the 6to4 tunneling mechanism enabled. (6to4 creates IPv6 addresses from an IPv4 address and ‘tunnels’ IPv6 packets in IPv4 packets.) In fact, no less than 2.44 percent of Mac OS users are IPv6-capable, compared to 0.93 percent for Linux and 0.32 percent for Vista,” van Beijnum reports.
Full article here.