Stay on the cutting edge of the information technology industry by learning to understand and implement Internet Protocol version 6 (IPv6). If you're working or planning to work in today's information technology environment, you know the importance of staying current. Designed to keep you current, Guide to IPv6: Understanding, Analysis & Implementation explores the IPv6 protocol and how it is best employed in today's networks, including Microsoft, Linux, and Cisco. The book begins by highlighting the limitations of its predecessor, IPv4. It showcases IPv6's design objectives, and shows how they aim to overcome the limitations of IPv4, and how they will meet the needs of computer networks for decades to come. With this understanding, coverage then progresses to a detailed examination of the new protocol's base architecture, including a discussion of packet structure, addressing, and IPv6 subnetting. Armed with these core essentials, readers are presented with information on how to implement this new protocol, and finally, with an in-depth look at its migration strategies, including configured tunnels, ISATAP, Teredo, NAT46-64/PT and 6to4 tunnels.