**BUMP**
I think most places support IPv6. There was support for World IPv6 Day (June 8 2011) and talk of putting the feature in 2.3, but it's continually kicked down the road. It's disappointing that the feature didn't make 4.0 or even 5.0. There are a lot of things I like about Zentyal, but I may have to abandon it if they don't offer support later this year. It's getting harder and harder to work around not having it, and the technology is from last century.