<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <HTML ><HEAD ><TITLE >Configuring the DHCP Server</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="Network Booting" HREF="index.html"><LINK REL="UP" TITLE="PXE Network Installations" HREF="ch-pxe.html"><LINK REL="PREVIOUS" TITLE="Starting the tftp Server" HREF="s1-netboot-tftp.html"><LINK REL="NEXT" TITLE="Adding a Custom Boot Message" HREF="s2-netboot-custom-msg.html"><LINK REL="STYLESHEET" TYPE="text/css" HREF="rhdocs-man.css"></HEAD ><BODY CLASS="SECT1" BGCOLOR="#FFFFFF" TEXT="#000000" LINK="#0000FF" VLINK="#840084" ALINK="#0000FF" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >Network Booting</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="s1-netboot-tftp.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" >Chapter 1. PXE Network Installations</TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="s2-netboot-custom-msg.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><DIV CLASS="SECT1" ><H1 CLASS="SECT1" ><A NAME="S1-NETBOOT-DHCP" ></A >1.5. Configuring the DHCP Server</H1 ><P > If a DHCP server does not already exist on the network, configure one. Refer to the <I CLASS="CITETITLE" >Red Hat Enterprise Linux System Administration Guide</I > for details. Make sure the configuration file contains the following so PXE booting is enabled for systems that support it: </P ><TABLE CLASS="SCREEN" BGCOLOR="#DCDCDC" WIDTH="100%" ><TR ><TD ><PRE CLASS="SCREEN" ><TT CLASS="COMPUTEROUTPUT" >allow booting; allow bootp; class "pxeclients" { match if substring(option vendor-class-identifier, 0, 9) = "PXEClient"; next-server <TT CLASS="REPLACEABLE" ><I ><server-ip></I ></TT > filename "linux-install/pxelinux.0"; }</TT ></PRE ></TD ></TR ></TABLE ><P > The IP address that follows the <TT CLASS="COMPUTEROUTPUT" >next-server</TT > option should be the IP address of the <TT CLASS="COMMAND" >tftp</TT > server.</P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="s1-netboot-tftp.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="s2-netboot-custom-msg.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >Starting the <TT CLASS="COMMAND" >tftp</TT > Server</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="ch-pxe.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >Adding a Custom Boot Message</TD ></TR ></TABLE ></DIV ></BODY ></HTML >