A rough eyeball of the DSC stats for the last day or so seems to indicate a little over 50% A queries and about 10% AAAA.

Now THAT is an interesting statistic. Correct me if I'm wrong, but it means that a fair proportion of the queries coming in are TRYING to use v6, but presumably either aren't given a v6 address back or are unable to access it once obtained. Given that Vista will default to using v6 and fall back to v4 and the above statistic, one could surmise that if v6 was deployed, it would almost immediately get a fair portion of traffic. Indeed, when I tried pinging between two boxes at home that I had put Vista RC1 on I got a reply from a v6 address. Even though I'd specified the v4 address in the ping command Jonathan