Now updated for Windows Server 2008 and Windows Vista, this guide delivers in-depth technical information on Internet Protocol version 6 (IPv6). IPv6 greatly improves on IPv4, the current protocol, by vastly increasing the number of available addresses and by adding enhancements for security, multimedia traffic management, routing, and network configuration. Written by a popular author and networking expert, this reference details the protocol, from its features and benefits to its packet structure and protocol processes. It also describes how to migrate to IPv6-based internetworking, with tips about coexistence with IPv4-based systems, DHCP, DNS, and routing infrastructure. It discusses how IPv6 is supported by the Windows Server 2008 family of operating systems and Windows Vista. Includes companion CD with fully searchable eBook and other references.A Note Regarding the CD or DVDThe print version of this book ships with a CD or DVD. For those customers purchasing one of the digital formats in which this book is available, we are pleased to offer the CD/DVD content as a free download via O'Reilly Media's Digital Distribution services. To download this content, please visit O'Reilly's web site, search for the title of this book to find its catalog page, and click on the link below the cover image (Examples, Companion Content, or Practice Files). Note that while we provide as much of the media content as we are able via free download, we are sometimes limited by licensing restrictions. Please direct any questions or concerns to firstname.lastname@example.org.