This step-by-step guide includes updates to the original guide due to security enhancements in the release of Windows Server 2003 with Service Pack 1 (SP1) and Windows XP Professional with Service Pack 2 (SP2).

This guide describes how to configure Internet Protocol version 6 (IPv6) in a test lab using five computers. Of the five computers, one is a DNS server, two are clients, and two are routers. This guide also includes an exercise that ends the network connection between intranets and then uses Intra-Site Automatic Tunnel Addressing Protocol (ISATAP) to restore communication.

Step-by-Step Guide for Setting Up IPv6 in a Test Lab