Your reference points to me - Tony - so I'm not quite sure who you are addressing...
Anyway, for dhcpd I use this from ClearOS repository...
[root@danda ~]# yum info dhcp
Name : dhcp
Arch : i386
Epoch : 12
Version : 3.0.5
Release : 29.el5_7.1
Size : 2.1 M
Repo : installed
Summary : DHCP (Dynamic Host Configuration Protocol) server and relay agent.
URL : http://isc.org/products/DHCP/
License : distributable
Description: DHCP (Dynamic Host Configuration Protocol) is a protocol which allows
: individual devices on an IP network to get their own network
: configuration information (IP address, subnetmask, broadcast address,
: etc.) from a DHCP server. The overall purpose of DHCP is to make it
: easier to administer a large network. The dhcp package includes the
: ISC DHCP service and relay agent.
: To use DHCP on your network, install a DHCP service (or relay agent),
: and on clients run a DHCP client daemon. The dhcp package provides
: the ISC DHCP service and relay agent.
Don't use dnsmasq at all...
Most of the network has static addresses... my laptops get a fixed addresses from the dhcp server based on MAC... visitors get normal variable dhcp addresses... no DDNS... I have several zones...