I would like to tell you how to create the reverse lookup zone. This is often what repels most administrators of DNS servers because they do not really know what to specify the network level to indicate. So create a new primary zone, configure its settings update as usual, once at the screen asking you to enter the IPv6 network in the area concerned. Normally your ISP has assigned an IPv6 prefix of variable size from 3 to 64 bits (though the principles remain effective and subnetting mask size may be greater for large networks that would have been "cut"). If you do not have a network of gargantuan size I suggest you create a zone for IPv6, why in the input field "IPv6 address prefix" enter the prefix you gave your ISP, followed by:: (which actually serve to automatically fill in the missing bits with 0 in IPv6 notation) followed by / netmask (knowing that the mask is actually the number of bits to 1 to mean, bit-level network ID).