mirror of
https://gitlab.com/shorewall/code.git
synced 2024-11-28 02:23:20 +01:00
c27a5af5c0
git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@976 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
90 lines
3.1 KiB
XML
90 lines
3.1 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<!DOCTYPE article PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
|
|
"http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
|
|
<article>
|
|
<!--$Id$-->
|
|
|
|
<articleinfo>
|
|
<title>DHCP</title>
|
|
|
|
<authorgroup>
|
|
<author>
|
|
<firstname>Tom</firstname>
|
|
|
|
<surname>Eastep</surname>
|
|
</author>
|
|
</authorgroup>
|
|
|
|
<pubdate>2002-11-03</pubdate>
|
|
|
|
<copyright>
|
|
<year>2001</year>
|
|
|
|
<year>2002</year>
|
|
|
|
<holder>Thomas M. Eastep</holder>
|
|
</copyright>
|
|
|
|
<legalnotice>
|
|
<para>Permission is granted to copy, distribute and/or modify this
|
|
document under the terms of the GNU Free Documentation License, Version
|
|
1.2 or any later version published by the Free Software Foundation; with
|
|
no Invariant Sections, with no Front-Cover, and with no Back-Cover
|
|
Texts. A copy of the license is included in the section entitled
|
|
<quote><ulink url="GnuCopyright.htm">GNU Free Documentation License</ulink></quote>.</para>
|
|
</legalnotice>
|
|
</articleinfo>
|
|
|
|
<section>
|
|
<title>If you want to Run a DHCP Server on your firewall</title>
|
|
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para>Specify the "dhcp" option on each interface to be served
|
|
by your server in the /etc/shorewall/interfaces file. This will
|
|
generate rules that will allow DHCP to and from your firewall system.
|
|
</para>
|
|
</listitem>
|
|
|
|
<listitem>
|
|
<para>When starting "dhcpd", you need to list those interfaces
|
|
on the run line. On a RedHat system, this is done by modifying
|
|
/etc/sysconfig/dhcpd. </para>
|
|
</listitem>
|
|
</itemizedlist>
|
|
</section>
|
|
|
|
<section>
|
|
<title>If a Firewall Interface gets its IP Address via DHCP</title>
|
|
|
|
<itemizedlist>
|
|
<listitem>
|
|
<para>Specify the "dhcp" option for this interface in the
|
|
<ulink url="Documentation.htm#Interfaces">/etc/shorewall/interfaces</ulink>
|
|
file. This will generate rules that will allow DHCP to and from
|
|
your firewall system.</para>
|
|
</listitem>
|
|
|
|
<listitem>
|
|
<para>If you know that the dynamic address is always going to be in
|
|
the same subnet, you can specify the subnet address in the
|
|
interface's entry in the <ulink url="Documentation.htm#Interfaces">/etc/shorewall/interfaces</ulink>
|
|
file.</para>
|
|
</listitem>
|
|
|
|
<listitem>
|
|
<para>If you don't know the subnet address in advance, you should
|
|
specify "detect" for the interface's subnet address in the
|
|
<ulink url="Documentation.htm#Interfaces">/etc/shorewall/interfaces</ulink>
|
|
file and start Shorewall after the interface has started.</para>
|
|
</listitem>
|
|
|
|
<listitem>
|
|
<para>In the event that the subnet address might change while
|
|
Shorewall is started, you need to arrange for a "shorewall
|
|
refresh" command to be executed when a new dynamic IP address gets
|
|
assigned to the interface. Check your DHCP client's documentation.</para>
|
|
</listitem>
|
|
</itemizedlist>
|
|
</section>
|
|
</article> |