Mine

--------- named.conf

zone "hackdmz.net" IN {
        type master;
        allow-query { any; };
        file "pri/hackdmz.net.zone";
        notify no;
};


zone "233.42.208.in-addr.arpa" IN {
        type master;
        allow-query { any; };
        file "pri/233.42.208.in-addr.arpa.zone";
        allow-update { none; };
        notify no;
};

---------------------- END OF named.conf

---------------------- pri/233.42.208.in-addr.arpa.zone

$ORIGIN 233.42.208.in-addr.arpa.
$TTL 3D
@       IN      SOA     ns1.data393.net. root.hackdmz.net. (
                        2007061711 ; Serial, todays date + todays serial
                        1H      ; Refresh
                        2H      ; Retry
                        4W      ; Expire
                        1H )     ; Minimum TTL

        IN      NS      ns1.data393.net.
        IN      NS      ns2.data393.net.

204.233.42.208.in-addr.arpa.    IN      PTR     mail.hackdmz.net.
205.233.42.208.in-addr.arpa.    IN      PTR     altador.hackdmz.net.
205.233.42.208.in-addr.arpa.    IN      PTR     widgets.hackdmz.net.
204.233.42.208.in-addr.arpa.    IN      PTR     ircd.hackdmz.net.
204.233.42.208.in-addr.arpa.    IN      PTR     irc.hackdmz.net.

;$GENERATE 204-205 $    PTR     208-42-233-$.hackdmz.net.
;$GENERATE 204-205 $    PTR     208-42-233-$.mail.hackdmz.net.
;$GENERATE 204-205 $     PTR     208-42-233-$.altador.hackdmz.net.

------------------ end zone file