DHCP->DNS помогите понять

помогите понять где ошибка. Не синхронизируется ДНС с ДХЦП. Вот конфиги:

named.conf
-------------
acl corpnets {
        192.168.1.0/24;
        192.168.2.0/24;
        192.168.3.0/24;
        192.168.4.0/24;
        192.168.5.0/24;
        192.168.6.0/24;
        127.0.0.1;
        };
options {
        directory "/var/named";

        dump-file "/var/named/data/cache_dump.db";
        statistics-file "/var/named/data/named_stats.txt";

        allow-query {
                corpnets;
                };
//      query-source port 53;
        forward only;
        forwarders {
                127.0.0.1;
                192.168.5.2;
                80.66.66.11;
                80.66.66.110;
                192.168.5.9;
                };
//
        listen-on port 53 {
                192.168.5.2;
                127.0.0.1;
                };
};
};

logging {
        channel update_debug {
                file "/var/log/named-update.log";
                severity debug 3;
                print-category yes;
                print-severity yes;
                print-time yes;
                };
        channel security_info {
                file "/var/log/named-auth.log";
                severity info;
                print-category yes;
                print-severity yes;
                print-time yes;
                };
        category security {
                security_info;
                };
        category update {
                update_debug;
                };
};

key rndc-key {
        algorithm hmac-md5;
        secret "c3Jc7fgR2f2i+YItIHyZdQ==";
        };

zone "." IN {
        type hint;
        file "named.ca";
};

zone "localhost" IN {
        type master;
        file "localhost.zone";
        allow-update {
                none;
                };
};

zone "0.0.127.in-addr.arpa" IN {
        type master;
        file "named.local";
        allow-update { none; };
};
/////// New Zone ////
zone "el.local" IN {
        type master;
        file "my.el.local";
        allow-update {
                key rndc-key;
                };
//      notify no;
        };

zone "6.168.192.in-addr.arpa" IN {
        type master;
        file "my.192.168.6";
        allow-update {
                key rndc-key;
                };
//      notify no;
        };
(дальше 5я,4я, 3я, 2я и 1я подсеть идентичны)
controls {
        inet 127.0.0.1 port 953 allow { 127.0.0.1; } keys { rndc-key; };
        };
------------------------

dhcpd.conf
------------------------
authoritative;
ddns-update-style interim;
deny duplicates;
stash-agent-options off;
update-static-leases on;
option ip-forwarding on;
option domain-name "el.local";
option domain-name-servers 192.168.5.9, 192.168.5.2;
option broadcast-address 255.255.255.255;
key rndc-key {
        secret c3Jc7fgR2f2i+YItIHyZdQ==;
        algorithm hmac-md5;
        }
zone el.local. {
 primary 192.168.5.2;
# key DHCP_UPDATER;
    key rndc-key;
 }
zone 6.168.192.IN-ADDR.ARPA. {
 primary 192.168.5.2;
# key DHCP_UPDATER;
    key rndc-key;
 }
(дальше идентично 5-1я подсеть)
class "dhcp-relay" {
    match if exists agent.circuit-id;
}
subnet 192.168.6.0 netmask 255.255.255.0 {
    default-lease-time 2764800;
    max-lease-time 2764800;
    ddns-domainname "el.local";
    deny client-updates;
    server-identifier 192.168.5.2;
    server-name proxy;
    option domain-name "el.local";
    option domain-name-servers 192.168.5.9, 192.168.5.2;
    option routers 192.168.6.1;
    option subnet-mask 255.255.255.0;
    option broadcast-address 192.168.6.255;
    option netbios-name-servers 192.168.5.9;
    option netbios-node-type 8;

pool {
    range 192.168.6.10 192.168.6.254;
        deny members of "dhcp-relay";
    }
(опять же для остальных идетничто)
-------------------

что я забыл сделать, чтоб автоматическая синхронизация была?