In my AusNOG 2011 presentation, "Residential IPv6 CPE - What Not to Do and Other Observations", a couple of my examples of mistakes in some IPv6 CPE implementations were the incorrect use and understanding of IPv6 private addressing. Since then, I've come across other examples of IPv6 private addressing misunderstandings. In this presentation, I want to help people better understand IPv6 private addressing; when to use it, and if you're using it, how to get it right. Discussion of IPv6 private addressing naturally leads to the discussion of one of the most significant features of IPv6 other than the much larger address space; the formal support of nodes (or rather interfaces) having multiple addresses. In the second part of the presentation I'll talk about multi-addressing, including how it works and why it allows a network to have IPv6 private addressing without also having to use any form of NAT to reach the Internet. I'll also talk about some of its other emergent benefits.