Yo yo yo ! What is this IPv6 business ? The software works like a charm on office LANs, and campus and other networks. But you want your network to be globally available right? Good, so you need to get IPv6. Call your ISP, and say you need a globally routable I-P-V-6 address. If they don't, tell them you're switching ISP coz they're so lazy that they can't click a button on their screens. That's pretty much it!