Running IPv6 when your ISP doesn’t yet support it [solved see comments]
I ran into an issue where a client wanted to run IPv6 internally for testing, but their ISP did not yet support it. So we decided to use the FE00:: space and carved out a /48 for them to use. We set each subnet internally to use a different /64, and thought all was well. Until World IPv6 day that is (June 8th 2012). Suddenly, websites (such as Google and Bing) take 30+ seconds to load. I quickly realized that…