>a consultation, use bind 9 and I have the following configuration in my >named.conf >zone "\[x3FFE82408018/48].ip6.arpa" { you no longer need to use bit string labels. use nibbles (4 bit per label, like "a.b.c.d.1.2.3.4" for ip6.arpa as well, just like ip6.int. itojun