isc-dhcp-server and use-host-decl-names

[Charles Curley <charlescurley@charlescurley.com>]

I run two dhcpd servers on my LAN with failover and DDNS updates. In the
past I have set certain machines up with fixed addresses and host
names, like so:

host dragonw
{
   option host-name "dragonw";
   hardware ethernet ee:ee:ee:ee:ee:ee;
   fixed-address iii.iii.ii.i;
   ddns-hostname dragonw;
}

However, if I understand the man page for dhcpd.conf correctly, I can
get rid of both the ddns-hostname and host-name declarations by
enclosing the host declaration in a group which has use-host-decl-names
on, like so:

ignore                 client-updates;

group {
use-host-decl-names on;

host dragonw
{
   hardware ethernet ee:ee:ee:ee:ee:ee;
   fixed-address iii.iii.ii.i;
}

}

However, at least three cases since I made that change, dhcp has used
another name, which I guess is the name requested by the host.

What am I missing?

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