Install the dhclient package:

# yum install dhclient

Edit /container/name/rootfs/etc/sysconfig/network-scripts/ifcfg-iface, where iface is the name of the network interface, and change the value of BOOTPROTO to read as:

BOOTPROTO=dhcp

Edit /etc/sysconfig/network and verify that it contains the following setting:

NETWORKING=yes

To specify options for the client, such as the requested lease time and the network interface on which to request an address from the server, create the file /etc/dhclient.conf containing the required options.

The following example specifies that the client should use the eth1 interface, request a lease time of 24 hours, and identify itself using its MAC address:

interface "eth1" {
  send dhcp-lease-time 86400;
  send dhcp-client-identifier 80:56:3e:00:10:00;
}

For more information, see the dhclient.conf(5) manual page.

Restart the network interface or the network service to enable the client, for example:

# service network restart

When the client has requested and obtained a lease, information about this lease is stored in /var/lib/dhclient/dhclient-interface.leases.