2002-08-13 22:45:21 +02:00
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<meta http-equiv="Content-Language" content="en-us">
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<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
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<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
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<meta name="ProgId" content="FrontPage.Editor.Document">
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<title>DHCP</title>
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</head>
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<body>
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2002-08-22 23:21:41 +02:00
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<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%" id="AutoNumber1" bgcolor="#400169" height="90">
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<tr>
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<td width="100%">
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<h1 align="center"><font color="#FFFFFF">DHCP</font></h1>
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</tr>
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</table>
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2002-08-13 22:45:21 +02:00
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<h2 align="left">DHCP Server on your firewall</h2>
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<ul>
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<li>
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<p align="left">Specify the "dhcp" option on each interface to be
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served by your server in the <a href="Documentation.htm#Interfaces">/etc/shorewall/interfaces</a>
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file.</li>
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<li>
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<p align="left">When starting "dhcpd", you need to list those
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interfaces on the run line. On a RedHat system, this is done by modifying
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/etc/sysconfig/dhcpd.</li>
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</ul>
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<h2 align="left">A Firewall Interface gets its IP Address via DHCP</h2>
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<ul>
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<li>
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<p align="left">Specify the "dhcp" option for this interface in
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the <a href="Documentation.htm#Interfaces">/etc/shorewall/interfaces</a>
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file.</li>
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<li>
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<p align="left">If you know that the dynamic address is always going to be
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in the same subnet, you can specify the subnet address in the interface's
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entry in the <a href="Documentation.htm#Interfaces">/etc/shorewall/interfaces</a>
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file.</li>
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<li>
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<p align="left">If you don't know the subnet address in advance, you should
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specify "detect" for the interface's subnet address in the <a href="Documentation.htm#Interfaces">/etc/shorewall/interfaces</a>
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file and start Shorewall after the interface has started.</li>
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<li>
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<p align="left">In the event that the subnet address might change while
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Shorewall is started, you need to arrange for a "shorewall
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refresh" command to be executed when a new dynamic IP address gets
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assigned to the interface. Check your DHCP client's documentation.</li>
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</ul>
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<p align="left"><font size="2">Last updated 1/26/2002 - <a href="support.htm">Tom
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Eastep</a></font></p>
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<p><font face="Trebuchet MS"><a href="copyright.htm"><font size="2">Copyright</font>
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<EFBFBD> <font size="2">2001, 2002 Thomas M. Eastep.</font></a></font></p>
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</body>
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</html>
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