Intro to IPv6

Welcome to the dark side? Unfortunately that is what many people think of IPv6 at the moment. While IPv6 is by no means a new thing, in my experience it is still something that almost no one has deployed in their own networks. In working with hundreds of different companies all over the world over the past few years, I have only found one organization that was running IPv6 over their entire production network, and it wasn't even true native IPv6. Instead, they were using a tunneling technology called ISATAP over their whole network in order to make all of the servers and clients talk to each other using IPv6 packets, but these packets were still traversing an IPv4 physical network. Why does it seem to be so difficult to put IPv6 into place? Because we have been using IPv4 since basically the beginning of time, it's what we all know and understand, and there really isn't a great need to move to IPv6 inside our networks. Wait a minute; I thought there was a big...