TL> Native with your own reverse DNS is even better. :)
There is always something beter. But I consider configurable rev DNS a bit of a vanity thing, It is my understanding that some things will not work propely without rev DNS, and that having all IPv6 addresses resolve to the same symbolic host name is a kludge that may cause other problems. So I am glad that my ISP now has unique rev DNS for all their entire IPv6 prefix range.
Configurable rev DNA is too low on my wish list to change poviders.
