By Johna Till Johnson, Network World, 08/01/05

It's been more than 10 years since the development of IPv6, yet it's had virtually zero adoption among U.S. enterprise customers and service providers, even though the U.S. Office of Management and Budget recently announced it intends to require support across government agencies for IPv6 by 2008.

Are network managers and service providers sticks-in-the-mud who refuse to get with next-generation technology?

Not at all. The dirty little secret behind IPv6 is that although it's touted as "next-generation" IP, purportedly increasing security and QoS, in reality it adds little to existing IP specs. The security and QoS capabilities built into IPv6 are virtually identical to those added over the years to IPv4.