How to config ?

[Somsak RAKTHAI]

Dear sir,
  If I have two network. (192.168.127.0/128)
     -net 1   192.168.127.1   - 192.168.127.126
        want to config "zone1.myzone.com"
     -net 2   192.168.127.129 - 192.168.127.254
        want to config "zone2.myzone.com"

  I want to config each zone on each network.
  How I config reverse address below ? Can I do it ?

zone "X.X.X.in-addr.arpa" {   // What X for zone 1 ?
        type master;
        file "X.X.X.in-addr.arpa";
        allow-query { any; };
};

zone "Y.Y.Y.in-addr.arpa" {   // What Y for zone 2 ?
        type master;
        file "Y.Y.Y.in-addr.arpa";
        allow-query { any; };
};

         thank you very much.
             regards,
             Somsak.