IPv6 in Practice

IPv6 is no longer the future - it is the present. Four of the five regional internet registries have exhausted their IPv4 address blocks. Mobile carriers, content providers such as Google and Netflix, and residential ISPs already carry significant traffic over IPv6. If you work with networks, you need to understand IPv6 now.

IPv6 in Practice is a straight-to-the-point guide written for students and network technicians who already know IPv4 and want to master IPv6 without detours. It covers the why, the how, and the hands-on configuration - in a single, progressive volume.

What you will learn:

• Why IPv4 exhaustion is real and why NAT only delayed the inevitable


• How IPv6 addresses work - hexadecimal notation, compression rules, and address types


• The structure of the IPv6 header and how it compares to IPv4


• Global unicast and link-local addresses - how they are formed and when each is used


• SLAAC and DHCPv6 - stateless and stateful autoconfiguration in detail


• ICMPv6 and the Neighbor Discovery Protocol (NDP) - how IPv6 replaces ARP and more


• IPv6 routing - static routes, OSPFv3, and routing table concepts


• Coexistence mechanisms - dual stack, tunneling, and NAT64/DNS64


• Three complete progressive labs in Cisco Packet Tracer, from interface configuration to OSPFv3 with fault simulation

Each chapter builds on the previous one, and every theoretical concept is reinforced with practical examples and terminal commands for Linux and Windows. The final chapter consolidates the entire book into a single real topology so you can see IPv6 working end to end.

Who this book is for: networking students, network administrators, IT technicians, and anyone preparing for Cisco CCNA, Huawei HCIA-Datacom, or CompTIA Network+ certifications who needs a focused, practical IPv6 reference.

Written by Rodrigo Tertulino, Ph.D. - professor at the Federal Institute of Rio Grande do Norte (IFRN), Cisco Networking Academy instructor, and Huawei HCIA-certified instructor, with nearly a decade of experience teaching computer networking.