Starting with a short history of IPv6, author Silvia Hagen provides an overview of new functionality and discusses why we need IPv6. Hagen also shares a complete discussion of the new IPv6 header format and extension headers, IPv6 address and ICMPv6 message format, Security, QoS, Mobility and, last but not least, offers a Quick Start Guide for different operating systems also. IPv6 Essentials, Second Edition includes: In-depth technical guide to IPv6 Mechanisms and Case Studies that show how to integrate IPv6 into your network without interruption of IPv4 services Routing protocols and upper layer protocols Security in IPv6: concepts and requirements. Including IPSEC framework and security elements available for authentication and encryption Quality of Service: covers the elements available for QoS in IPv6 and how they can be implemented detailed discussion of DHCPv6 and Mobile IPv6 Discussion of migration cost and business case preparation on different operating systems: Sun Solaris, Linux, BSD, Windows XP, and Cisco routers Are you ready to start implementing IPv6 today or to plan your strategy for the future, IPv6 Essentials, Second Edition will provide a solid foundation you need to get started. "Silvia's look at IPv6 always refreshing as she translates complex technology features into business drivers and the original end-user benefits to enable building new business concepts based on the model of end to end."