Reverse Classless not working

[Ivan Dallaserra]

Hi, I have a problem with my DNS server configured as RFC2317 stated. 
The reverse of the zone "128/28.22.206.193.IN-ADDR.ARPA"
is not working, when I try to resolve it doesn't work:

nslookup 193.206.22.134
Server:        127.0.0.1
Address:    127.0.0.1#53

** server can't find 134.22.206.193.in-addr.arpa: NXDOMAIN


for the zone "96/27.22.206.193.IN-ADDR.ARPA" no problem, it works!
How can I fix it???

The two zone is the following:


zone "128/28.22.206.193.IN-ADDR.ARPA" {
        type master;
        file "/etc/bind/plab.reverse";
        allow-query { any;};
        notify yes;
};


zone "96/27.22.206.193.IN-ADDR.ARPA" {
    type master;
        file "/etc/bind/db.reverse";
          allow-query { any;};
    notify yes;
};



Thanks.

Ios77