The first step for configuring a DHCP client is to make sure the kernel
recognizes the network interface card. Most cards are recognized during
the installation process, and the system is configured to use the
correct kernel module for the card. If you install a card after
installation, Kudzu should recognize it and
prompt you to configure the cooresponding kernel module for it. Be sure
to check the Red Hat Linux Hardware Compatibility List available at http://hardware.redhat.com. If
the network card is not configured by the installation program or
Kudzu and you know which kernel module to
load for it, refer to Chapter 24 for details on
loading kernel modules.
To configure a DHCP client manually, you need to modify the
/etc/sysconfig/network file to enable networking
and the configuration file for each network device in the
/etc/sysconfig/network-scripts directory. In this
directory, each device should have a configuration file named
ifcfg-eth0 where eth0 is the
network device name.
The /etc/sysconfig/network file should contain the
following line:
You might have more information in this file. You just need to make sure
that the NETWORKING variable is set to
yes.
The /etc/sysconfig/network-scripts/ifcfg-eth0 file
should contain the following lines:
DEVICE=eth0
BOOTPROTO=dhcp
ONBOOT=yes |
You need a configuration file for each device that you want to configure
to use DHCP.
If you prefer a graphical interface for configuring a DHCP client, refer
to Chapter 6 for details on using Network
Configurator to configure a network interface to use DHCP.
