Observations of IPv6 traffic on a 6to4 relay
FUNET has been operating a public, globally-used 6to4 (RFC 3056) relay router since November 2001. The traffic has been logged and is now analyzed to gather information of 6to4 and IPv6 deployment. Among other figures, we note that the number of 6to4 capable nodes has increased by an order of magnitude in half a year: in April 2004, there are records of about 2 million different 6to4 nodes using this particular relay. Vast majority of this is just testing the availability of the relay, done by the Microsoft Windows systems, but the real traffic has also increased over time. While the observed 6to4 traffic has typically consisted of relatively simple system-level applications, or applications by power users, the emergence of peer-to-peer applications such as BitTorrent was also observed.
ipv6 6to4 ipv6 transition