FOUNTAIN VALLEY, Calif., Dec. 22, 2011 /PRNewswire/ -- D-Link successfully completed a new round of IPv6 interoperability testing at the University of New Hampshire InterOperability Laboratory's (UNH-IOL) third IPv6 Customer Edge (CE) Router Interoperability Test Event held Nov. 7-11, 2011. This was D-Link's second successful participation in a UNH-IOL IPv6 CPE test event after the company became one of only two vendors to pass an earlier test program held in June 2011.