dhcp not updating dns server

[James Dinkel]

I've tried stripping my config down to the bare minimum and putting in no
more than the man page says to.  I basically just started with the default
sample file that comes with Red Hat.  But I'm still not getting any dns
updates.

Here is my /etc/dhcpd.conf:
---------------------------------------
ddns-update-style interim;
ignore client-updates;

key DHCP_UPDATER {
    algorithm hmac-md5;
    secret pRP5FapFoJ95JEL06sv4PQ==;
};

zone COMPANY.COM. {
    primary 192.168.100.2;
    key DHCP_UPDATER;
}
zone 100.168.192.in-addr.arpa. {
    primary 192.168.100.2;
    key DHCP_UPDATER;
}

subnet 192.168.100.0 netmask 255.255.254.0 {

# --- default gateway
    option routers            192.168.100.1;
    option subnet-mask        255.255.254.0;

#    option nis-domain        "company.com";
    option domain-name        "company.com";
    option domain-name-servers    192.168.100.2;

#    option time-offset        -18000;    # Eastern Standard Time
#    option ntp-servers        192.168.1.1;

    range dynamic-bootp 192.168.100.128 192.168.100.254;
    default-lease-time 21600;
    max-lease-time 43200;
}
---------------------------------------

I even put in a dummy key just to see if tcpdump would show the dhcp server
even attempting to contact the dns server, but tcpdump still shows
absolutely no traffice between the dhcp server and the dns server.

I tried it with and without the key and with and without the zone
declarations.

James
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