White snow agains the black ice ...

If you're busy with networking or security the following paper is certainly a good lecture. Understanding the protocols can lead to finding possible attacks. Reading about possible attacks can sometimes motivate people to learn more about the protocols...

Exploiting Tomorrow's Internet Today: Penetration testing with IPv6

This paper illustrates how IPv6-enabled systems with link-local and auto-configured addresses can be compromised using existing security tools. While most of the techniques described can apply to "real" IPv6 networks, the focus of this paper is to target IPv6-enabled systems on the local network.

This paper is written by H D Moore, he's the main author behind Metasploit and was invited at FOSDEM in 2007.