NetworkWorld May 19, 2012 May 21, 2012,
Volume 171, Issue 4
"Last year on June 8, 2011 we all experienced World IPv6 Day. This was a 24-hour test for web sites to use both an IPv4 and IPv6 addresses simultaneously for the same URL. One June 6, 2012 there will be World IPv6 Launch in which many organizations will enable IPv6 forever. Enterprises will need to prepare for World IPv6 Launch whether or not they are actively participating and enabling IPv6..."