Configuring a DHCP Server CentOS 6.

DHCP server installation:

# yum search dhcp
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: centos.mirror.xtratelecom.es
 * extras: centos.mirror.xtratelecom.es
 * updates: centos.mirror.xtratelecom.es
=== Matched: dhcp ====================================================
dhcp-devel.i686 : Development headers and libraries for interfacing to the DHCP server
dhclient.i686 : Provides the dhclient ISC DHCP client daemon and dhclient-script
dhcp.i686 : Dynamic host configuration protocol software
sblim-cmpi-dhcp.i686 : SBLIM WBEM-SMT DHCP
sblim-cmpi-dhcp-devel.i686 : SBLIM WBEM-SMT DHCP - Header Development Files
sblim-cmpi-dhcp-test.i686 : SBLIM WBEM-SMT DHCP - Testcase Files
dnsmasq.i686 : A lightweight DHCP/caching DNS server
avahi-autoipd.i686 : Link-local IPv4 address automatic configuration daemon (IPv4LL)
avahi-dnsconfd.i686 : Configure local unicast DNS settings based on information published in mDNS

Select dhcp.i686

#yum install dhcp.i686

Sample DHCP server config file: 

#nano /etc/dhcp/dhcpd.conf 

DHCP Server Configuration file.
#   see /usr/share/doc/dhcp*/dhcpd.conf.sample
#   see 'man 5 dhcpd.conf'
#   A slightly different configuration for an internal subnet.
  subnet 192.168.1.0 netmask 255.255.255.0 {
  range 192.168.1.10 192.168.1.254;
  option domain-name-servers 62.14.2.1, 62.14.63.14;
  option domain-name "mydomain.net";
  option routers 192.168.1.1;
  option broadcast-address 192.168.1.255;
  default-lease-time 7200;
  max-lease-time 86400;
}

Save and exit file /etc/dhcp/dhcpd.conf

Starting DHCP server:

/etc/init.d/dhcpd start