Syntax error in named.conf

[Jan Klaverstijn]

Hi all,

I am trying to get ddns to work with my dhcp server. I try following the 
howto at http://ops.ietf.org/dns/dynupd/secure-ddns-howto.html. While trying 
to set up the key for the DNS I get syntax error in the kernel log: 
/etc/named.conf:32: syntax error near 'update-policy'

I am lost. No clue what's wrong. My Bind version is 9.2.3 as shipped with 
Mandrake Community 10.0. Can someone please help?

This is my named.conf:

options {
        directory "/etc/named";
        forward first;
        forwarders {
                194.134.5.5;
                194.134.0.97;
                };
        listen-on {
                192.168.0.99;
                127.0.0.1;
                };
};

key "gatekeeper.klaverstijn.nl." {
    algorithm HMAC-MD5;
    secret 
"y5FRgXu9SflMWUVxFSFPj0KZeO+E8cZFVf2DyH6W6FjhSZ8kaDHZME+L1s2aA68ddepdgFF45wym6HC+8wW6VA==";
};

zone "0.0.127.in-addr.arpa" {
        type master;
        file "zone/127.0.0";
};

zone "0.168.192.in-addr.arpa" {
        type master;
        file "zone/192.168.0";
};

zone "klaverstijn.nl" {
        type master;
        file "zone/klaverstijn.nl";
        update-policy {
                grant gatekeeper.klaverstijn.nl. subdomain klaverstijn.nl. 
ANY;
        };
};

server 194.134.5.5 {
        bogus no;
};

server 194.134.0.97 {
        bogus no;
};


Kind regards,
Jan.