Rick Graziani works at Cabrillo College in California, but he does a lot more... He wrote a (or the?) book on IPv6 Fundamentals, and he talks about the pitfalls students encounter while learning IPv6. So if you want to learn IPv6, these are some of the things that you will have to go through too, but it's for a good cause... You'll get better, easier to secure networks that will be just as easy to use, and are easier to troubleshoot and protect.