Class B Rev Zone?

[stefan novak]

Hello,

is it possible to make a Class B net with one zone file?
I've configured it like this.

// reverse domains for cable modems
zone "64.10.in-addr.arpa" {
        type master;
        file "10.64.rev";
};

; Reverse  Domain 10.64
@        IN SOA ns01.xxxx.at. hostmaster.xxxx.at. (
           2009091705   ; serial number
            10800    ; refresh every 3 hours
            3600     ; retry after 1 hours
            691200   ; expire after 8 days
            86400)   ; default ttl is 1 days
; name server
@         IN NS            ns01.xxxx.at.
@         IN NS            ns02.xxxx.at.


;in ptr files

; Cable Modems

1.1       IN PTR  dialin00bru1.xxxx.at.
1.2       IN PTR  dialin00bru2.xxxx.at.
2.1       IN PTR  dialin00bru3.xxxx.at.

After restarting everything works as expected. But changing/adding an
PTR record, increasing the serial number and reload (killall -HUP
named) bind don't result in a reload of the zone... Is this because of
the Class B or did i make another mistake?

kind regards,
Stefan