TUAW reports Apple came under fire at the North American IPv6 Summit in Denver last week because the firm is no longer providing support for IPv6 in the latest version of the Apple AirPort Utility:
The criticism came from several speakers at the conference, but most notably from John Brzozowski, a Comcast distinguished engineer considered to be one of the chief architects of IPv6. In speaking about AirPort Utility 6.0, Brzozowski was quoted on NetworkWorld as saying that "Apple has taken the ability to seamlessly support IPv6 away from the AirPort Utility. It's a little concerning. We hoped to see more IPv6 support, not less, among [customer premises equipment] vendors."
Previous versions of the AirPort Utility allowed AirPort owners to configure and maintain settings for IPv6, while the newest version only provides support for IPv4. In order to provide support for IPv6, Comcast is recommending that AirPort Utility version 5.6 be installed alongside the newer version.