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git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@319 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
503 lines
26 KiB
HTML
503 lines
26 KiB
HTML
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type"
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content="text/html; charset=windows-1252">
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<title>Shorewall 1.3 Errata</title>
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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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<meta name="Microsoft Theme" content="none">
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</head>
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<body>
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<table border="0" cellpadding="0" cellspacing="0"
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style="border-collapse: collapse;" width="100%" id="AutoNumber1"
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bgcolor="#400169" height="90">
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<tbody>
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<tr>
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<td width="100%">
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<h1 align="center"><font color="#ffffff">Shorewall Errata/Upgrade Issues</font></h1>
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</td>
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</tr>
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</tbody>
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</table>
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<p align="center"> <b><u>IMPORTANT</u></b></p>
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<ol>
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<li>
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<p align="left"> <b><u>I</u>f you use a Windows system to download
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a corrected script, be sure to run the script through <u> <a
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href="http://www.megaloman.com/%7Ehany/software/hd2u/"
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style="text-decoration: none;"> dos2unix</a></u> after you have moved
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it to your Linux system.</b></p>
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</li>
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<li>
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<p align="left"> <b>If you are installing Shorewall for the
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first time and plan to use the .tgz and install.sh script, you can
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untar the archive, replace the 'firewall' script in the untarred directory
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with the one you downloaded below, and then run install.sh.</b></p>
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</li>
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<li>
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<p align="left"> <b>When the instructions say to install a corrected
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firewall script in /etc/shorewall/firewall, /usr/lib/shorewall/firewall
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or /var/lib/shorewall/firewall, use the 'cp' (or 'scp') utility to overwrite
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the existing file. DO NOT REMOVE OR RENAME THE OLD /etc/shorewall/firewall
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or /var/lib/shorewall/firewall before you do that. /etc/shorewall/firewall
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and /var/lib/shorewall/firewall are symbolic links that point
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to the 'shorewall' file used by your system initialization scripts
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to start Shorewall during boot. It is that file that must be overwritten
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with the corrected script.</b></p>
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</li>
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<li>
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<p align="left"><b><font color="#ff0000">DO NOT INSTALL CORRECTED COMPONENTS
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ON A RELEASE EARLIER THAN THE ONE THAT THEY ARE LISTED UNDER BELOW. For example,
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do NOT install the 1.3.9a firewall script if you are running 1.3.7c.</font></b><br>
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</p>
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</li>
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</ol>
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<ul>
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<li><b><a href="upgrade_issues.htm">Upgrade Issues</a></b></li>
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<li> <b><a href="#V1.3">Problems in
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Version 1.3</a></b></li>
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<li> <b><a href="errata_2.htm">Problems
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in Version 1.2</a></b></li>
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<li> <b><font color="#660066"> <a
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href="errata_1.htm">Problems in Version 1.1</a></font></b></li>
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<li> <b><font color="#660066"><a
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href="#iptables"> Problem with iptables version 1.2.3 on RH7.2</a></font></b></li>
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<li> <b><a href="#Debug">Problems with
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kernels >= 2.4.18 and RedHat iptables</a></b></li>
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<li><b><a href="#SuSE">Problems installing/upgrading RPM on SuSE</a></b></li>
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<li><b><a href="#Multiport">Problems with iptables version 1.2.7
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and MULTIPORT=Yes</a></b></li>
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<li><b><a href="#NAT">Problems with RH Kernel 2.4.18-10 and NAT</a></b><br>
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</li>
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</ul>
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<hr>
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<h2 align="left"><a name="V1.3"></a>Problems in Version 1.3</h2>
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<h3>Version 1.3.9a</h3>
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<ul>
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<li> If entries are used in /etc/shorewall/hosts and MERGE_HOSTS=No then
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the following message appears during "shorewall [re]start":</li>
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</ul>
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<pre> recalculate_interfacess: command not found<br></pre>
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<blockquote> The updated firewall script at <a
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href="ftp://www.shorewall.net/pub/shorewall/errata/1.3.9/firewall"
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target="_top">ftp://www.shorewall.net/pub/shorewall/errata/1.3.9/firewall</a>
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corrects this problem.Copy the script to /usr/lib/shorewall/firewall as described
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above.<br>
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</blockquote>
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<blockquote> Alternatively, edit /usr/lob/shorewall/firewall and change the
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single occurence (line 483 in version 1.3.9a) of 'recalculate_interefacess'
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to 'recalculate_interface'. <br>
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</blockquote>
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<ul>
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<li>The installer (install.sh) issues a misleading message "Common functions
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installed in /var/lib/shorewall/functions" whereas the file is installed
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in /usr/lib/shorewall/functions. The installer also performs incorrectly
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when updating old configurations that had the file /etc/shorewall/functions.
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<a
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href="ftp://ftp.shorewall.net/pub/shorewall/errata/1.3.9/install.sh">Here
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is an updated version that corrects these problems.<br>
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</a></li>
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</ul>
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<h3>Version 1.3.9</h3>
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<b>TUNNELS Broken in 1.3.9!!! </b>There is an updated firewall script
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at <a
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href="ftp://www.shorewall.net/pub/shorewall/errata/1.3.9/firewall"
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target="_top">ftp://www.shorewall.net/pub/shorewall/errata/1.3.9/firewall</a>
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-- copy that file to /usr/lib/shorewall/firewall as described above.<br>
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<br>
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Version 1.3.8
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<ul>
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<li> Use of shell variables in the LOG LEVEL or SYNPARMS columns of
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the policy file doesn't work.</li>
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<li>A DNAT rule with the same original and new IP addresses but with
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different port numbers doesn't work (e.g., "DNAT loc dmz:10.1.1.1:24 tcp
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25 - 10.1.1.1")<br>
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</li>
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</ul>
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Installing <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.3.8/firewall">
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this corrected firewall script</a> in /var/lib/shorewall/firewall
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as described above corrects these problems.
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<h3>Version 1.3.7b</h3>
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<p>DNAT rules where the source zone is 'fw' ($FW)
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result in an error message. Installing
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<a
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href="http://www.shorewall.net/pub/shorewall/errata/1.3.7/firewall">
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this corrected firewall script</a> in /var/lib/shorewall/firewall
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as described above corrects this problem.</p>
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<h3>Version 1.3.7a</h3>
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<p>"shorewall refresh" is not creating the proper
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rule for FORWARDPING=Yes. Consequently, after
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"shorewall refresh", the firewall will not forward
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icmp echo-request (ping) packets. Installing
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<a
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href="http://www.shorewall.net/pub/shorewall/errata/1.3.7/firewall">
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this corrected firewall script</a> in /var/lib/shorewall/firewall
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as described above corrects this problem.</p>
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<h3>Version <= 1.3.7a</h3>
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<p>If "norfc1918" and "dhcp" are both specified as
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options on a given interface then RFC 1918
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checking is occurring before DHCP checking. This
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means that if a DHCP client broadcasts using an
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RFC 1918 source address, then the firewall will
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reject the broadcast (usually logging it). This
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has two problems:</p>
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<ol>
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<li>If the firewall is running a DHCP
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server, the client won't be able to obtain
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an IP address lease from that server.</li>
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<li>With this order of checking, the
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"dhcp" option cannot be used as a noise-reduction
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measure where there are both dynamic
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and static clients on a LAN segment.</li>
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</ol>
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<p> <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.3.7/firewall">
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This version of the 1.3.7a firewall script </a>
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corrects the problem. It must be installed
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in /var/lib/shorewall as described above.</p>
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<h3>Version 1.3.7</h3>
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<p>Version 1.3.7 dead on arrival -- please use
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version 1.3.7a and check your version against
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these md5sums -- if there's a difference, please
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download again.</p>
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<pre> d2fffb7fb99bcc6cb047ea34db1df10 shorewall-1.3.7a.tgz<br> 6a7fd284c8685b2b471a2f47b469fb94 shorewall-1.3.7a-1.noarch.rpm<br> 3decd14296effcff16853106771f7035 shorwall-1.3.7a.lrp</pre>
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<p>In other words, type "md5sum <<i>whatever package you downloaded</i>>
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and compare the result with what you see above.</p>
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<p>I'm embarrassed to report that 1.2.7 was also DOA -- maybe I'll skip the
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.7 version in each sequence from now on.</p>
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<h3 align="left">Version 1.3.6</h3>
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<ul>
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<li>
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<p align="left">If ADD_SNAT_ALIASES=Yes is specified in /etc/shorewall/shorewall.conf,
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an error occurs when the firewall script attempts to add an
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SNAT alias. </p>
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</li>
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<li>
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<p align="left">The <b>logunclean </b>and <b>dropunclean</b> options
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cause errors during startup when Shorewall is run with iptables
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1.2.7. </p>
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</li>
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</ul>
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<p align="left">These problems are fixed in <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.3.6/firewall">
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this correct firewall script</a> which must be installed in
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/var/lib/shorewall/ as described above. These problems are also
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corrected in version 1.3.7.</p>
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<h3 align="left">Two-interface Samples 1.3.6 (file two-interfaces.tgz)</h3>
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<p align="left">A line was inadvertently deleted from the "interfaces
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file" -- this line should be added back in if the version that you
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downloaded is missing it:</p>
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<p align="left">net<EFBFBD><EFBFBD><EFBFBD> eth0<68><30><EFBFBD> detect<63><74><EFBFBD> routefilter,dhcp,norfc1918</p>
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<p align="left">If you downloaded two-interfaces-a.tgz then the above
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line should already be in the file.</p>
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<h3 align="left">Version 1.3.5-1.3.5b</h3>
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<p align="left">The new 'proxyarp' interface option doesn't work :-(
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This is fixed in <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.3.5/firewall">
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this corrected firewall script</a> which must be installed in
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/var/lib/shorewall/ as described above.</p>
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<h3 align="left">Versions 1.3.4-1.3.5a</h3>
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<p align="left">Prior to version 1.3.4, host file entries such as the
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following were allowed:</p>
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<div align="left">
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<pre> adm eth0:1.2.4.5,eth0:5.6.7.8</pre>
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</div>
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<div align="left">
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<p align="left">That capability was lost in version 1.3.4 so that it is only
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possible to<74> include a single host specification on each line. This
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problem is corrected by <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.3.5a/firewall">this
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modified 1.3.5a firewall script</a>. Install the script in /var/lib/pub/shorewall/firewall
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as instructed above.</p>
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</div>
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<div align="left">
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<p align="left">This problem is corrected in version 1.3.5b.</p>
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</div>
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<h3 align="left">Version 1.3.5</h3>
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<p align="left">REDIRECT rules are broken in this version. Install
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<a
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href="http://www.shorewall.net/pub/shorewall/errata/1.3.5/firewall">
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this corrected firewall script</a> in /var/lib/pub/shorewall/firewall
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as instructed above. This problem is corrected in version 1.3.5a.</p>
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<h3 align="left">Version 1.3.n, n < 4</h3>
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<p align="left">The "shorewall start" and "shorewall restart" commands
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to not verify that the zones named in the /etc/shorewall/policy
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file have been previously defined in the /etc/shorewall/zones
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file. The "shorewall check" command does perform this verification
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so it's a good idea to run that command after you have made configuration
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changes.</p>
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<h3 align="left">Version 1.3.n, n < 3</h3>
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<p align="left">If you have upgraded from Shorewall 1.2 and after
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"Activating rules..." you see the message: "iptables: No chains/target/match
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by that name" then you probably have an entry in /etc/shorewall/hosts
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that specifies an interface that you didn't include in /etc/shorewall/interfaces.
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To correct this problem, you must add an entry to /etc/shorewall/interfaces.
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Shorewall 1.3.3 and later versions produce a clearer error
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message in this case.</p>
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<h3 align="left">Version 1.3.2</h3>
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<p align="left">Until approximately 2130 GMT on 17 June 2002, the
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download sites contained an incorrect version of the .lrp file. That
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file can be identified by its size (56284 bytes). The correct
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version has a size of 38126 bytes.</p>
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<ul>
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<li>The code to detect a duplicate interface entry in
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/etc/shorewall/interfaces contained a typo that prevented it from
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working correctly. </li>
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<li>"NAT_BEFORE_RULES=No" was broken; it behaved just
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like "NAT_BEFORE_RULES=Yes".</li>
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</ul>
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<p align="left">Both problems are corrected in <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.3.2/firewall">
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this script</a> which should be installed in <b><u>/var/lib/shorewall</u></b>
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as described above.</p>
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<ul>
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<li>
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<p align="left">The IANA have just announced the allocation of subnet
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221.0.0.0/8. This <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.3.2/rfc1918">
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updated rfc1918</a> file reflects that allocation.</p>
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</li>
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</ul>
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<h3 align="left">Version 1.3.1</h3>
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<ul>
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<li>TCP SYN packets may be double counted when
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LIMIT:BURST is included in a CONTINUE or ACCEPT policy (i.e., each
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packet is sent through the limit chain twice).</li>
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<li>An unnecessary jump to the policy chain is sometimes
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generated for a CONTINUE policy.</li>
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<li>When an option is given for more than one interface
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in /etc/shorewall/interfaces then depending on the option,
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Shorewall may ignore all but the first appearence of the option.
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For example:<br>
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<br>
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net<65><74><EFBFBD> eth0<68><30><EFBFBD> dhcp<br>
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loc<6F><63><EFBFBD> eth1<68><31><EFBFBD> dhcp<br>
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<br>
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Shorewall will ignore the 'dhcp' on eth1.</li>
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<li>Update 17 June 2002 - The bug described in the prior
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bullet affects the following options: dhcp, dropunclean, logunclean,
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norfc1918, routefilter, multi, filterping and noping. An
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additional bug has been found that affects only the 'routestopped'
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option.<br>
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<br>
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Users who downloaded the corrected script prior to 1850
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GMT today should download and install the corrected script
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again to ensure that this second problem is corrected.</li>
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</ul>
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<p align="left">These problems are corrected in <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.3.1/firewall">
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this firewall script</a> which should be installed in /etc/shorewall/firewall
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as described above.</p>
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<h3 align="left">Version 1.3.0</h3>
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<ul>
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<li>Folks who downloaded 1.3.0 from the links on the download
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page before 23:40 GMT, 29 May 2002 may have downloaded 1.2.13
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rather than 1.3.0. The "shorewall version" command will tell
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you which version that you have installed.</li>
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<li>The documentation NAT.htm file uses non-existent
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wallpaper and bullet graphic files. The <a
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href="http://www.shorewall.net/pub/shorewall/errata/1.3.0/NAT.htm">
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corrected version is here</a>.</li>
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</ul>
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<hr>
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<h2 align="left"><a name="Upgrade"></a>Upgrade Issues</h2>
|
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|
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<p align="left">The upgrade issues have moved to <a
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href="upgrade_issues.htm">a separate page</a>.</p>
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<hr>
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<h3 align="left"><a name="iptables"></a><font color="#660066"> Problem with
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iptables version 1.2.3</font></h3>
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<blockquote>
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<p align="left">There are a couple of serious bugs in iptables 1.2.3 that
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prevent it from working with Shorewall. Regrettably, RedHat released
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this buggy iptables in RedHat 7.2.<2E></p>
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<p align="left"> I have built a <a
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href="ftp://ftp.shorewall.net/pub/shorewall/errata/iptables-1.2.3-3.i386.rpm">
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corrected 1.2.3 rpm which you can download here</a><EFBFBD> and I have also built
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an <a
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href="ftp://ftp.shorewall.net/pub/shorewall/iptables-1.2.4-1.i386.rpm">
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iptables-1.2.4 rpm which you can download here</a>. If you are currently
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running RedHat 7.1, you can install either of these RPMs <b><u>before</u>
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</b>you upgrade to RedHat 7.2.</p>
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<p align="left"><font color="#ff6633"><b>Update 11/9/2001: </b></font>RedHat
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has released an iptables-1.2.4 RPM of their own which you can download
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from<font color="#ff6633"> <a
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href="http://www.redhat.com/support/errata/RHSA-2001-144.html">http://www.redhat.com/support/errata/RHSA-2001-144.html</a>.
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</font>I have installed this RPM on my firewall and it works fine.</p>
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<p align="left">If you would like to patch iptables 1.2.3 yourself,
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the patches are available for download. This <a
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href="ftp://ftp.shorewall.net/pub/shorewall/errata/iptables-1.2.3/loglevel.patch">patch</a>
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which corrects a problem with parsing of the --log-level specification
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while this <a
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href="ftp://ftp.shorewall.net/pub/shorewall/errata/iptables-1.2.3/tos.patch">patch</a>
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corrects a problem in handling the<68> TOS target.</p>
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<p align="left">To install one of the above patches:</p>
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<ul>
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<li>cd iptables-1.2.3/extensions</li>
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<li>patch -p0 < <i>the-patch-file</i></li>
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||
</ul>
|
||
</blockquote>
|
||
|
||
<h3><a name="Debug"></a>Problems with kernels >= 2.4.18
|
||
and RedHat iptables</h3>
|
||
|
||
<blockquote>
|
||
<p>Users who use RedHat iptables RPMs and who upgrade to kernel 2.4.18/19
|
||
may experience the following:</p>
|
||
|
||
<blockquote>
|
||
<pre># shorewall start<br>Processing /etc/shorewall/shorewall.conf ...<br>Processing /etc/shorewall/params ...<br>Starting Shorewall...<br>Loading Modules...<br>Initializing...<br>Determining Zones...<br>Zones: net<br>Validating interfaces file...<br>Validating hosts file...<br>Determining Hosts in Zones...<br>Net Zone: eth0:0.0.0.0/0<br>iptables: libiptc/libip4tc.c:380: do_check: Assertion<br>`h->info.valid_hooks == (1 << 0 | 1 << 3)' failed.<br>Aborted (core dumped)<br>iptables: libiptc/libip4tc.c:380: do_check: Assertion<br>`h->info.valid_hooks == (1 << 0 | 1 << 3)' failed.<br>Aborted (core dumped)<br></pre>
|
||
</blockquote>
|
||
|
||
<p>The RedHat iptables RPM is compiled with debugging enabled but the
|
||
user-space debugging code was not updated to reflect recent changes in
|
||
the Netfilter 'mangle' table. You can correct the problem by installing
|
||
<a
|
||
href="http://www.shorewall.net/pub/shorewall/iptables-1.2.5-1.i386.rpm">
|
||
this iptables RPM</a>. If you are already running a 1.2.5 version of
|
||
iptables, you will need to specify the --oldpackage option to rpm (e.g.,
|
||
"iptables -Uvh --oldpackage iptables-1.2.5-1.i386.rpm").</p>
|
||
</blockquote>
|
||
|
||
|
||
<h3><a name="SuSE"></a>Problems installing/upgrading
|
||
RPM on SuSE</h3>
|
||
|
||
<p>If you find that rpm complains about a conflict
|
||
with kernel <= 2.2 yet you have a 2.4 kernel
|
||
installed, simply use the "--nodeps" option to
|
||
rpm.</p>
|
||
|
||
<p>Installing: rpm -ivh --nodeps <i><shorewall rpm></i></p>
|
||
|
||
<p>Upgrading: rpm -Uvh --nodeps <i><shorewall rpm></i></p>
|
||
|
||
<h3><a name="Multiport"></a><b>Problems with
|
||
iptables version 1.2.7 and MULTIPORT=Yes</b></h3>
|
||
|
||
<p>The iptables 1.2.7 release of iptables has made
|
||
an incompatible change to the syntax used to
|
||
specify multiport match rules; as a consequence,
|
||
if you install iptables 1.2.7 you must be running
|
||
Shorewall 1.3.7a or later or:</p>
|
||
|
||
<ul>
|
||
<li>set MULTIPORT=No in
|
||
/etc/shorewall/shorewall.conf; or </li>
|
||
<li>if you are running Shorewall 1.3.6
|
||
you may install
|
||
<a
|
||
href="http://www.shorewall.net/pub/shorewall/errata/1.3.6/firewall">
|
||
this firewall script</a> in /var/lib/shorewall/firewall
|
||
as described above.</li>
|
||
|
||
</ul>
|
||
|
||
<h3><a name="NAT"></a>Problems with RH Kernel 2.4.18-10 and NAT<br>
|
||
</h3>
|
||
/etc/shorewall/nat entries of the following form will result in Shorewall
|
||
being unable to start:<br>
|
||
<br>
|
||
|
||
<pre>#EXTERNAL<41><4C><EFBFBD><EFBFBD><EFBFBD><EFBFBD> INTERFACE<43><45><EFBFBD><EFBFBD><EFBFBD><EFBFBD> INTERNAL<41><4C><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> ALL INTERFACES<45><53><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> LOCAL<br>192.0.2.22<EFBFBD><EFBFBD><EFBFBD> eth0<68><30><EFBFBD> 192.168.9.22<EFBFBD><EFBFBD> yes<65><73><EFBFBD><EFBFBD> yes<br>#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE</pre>
|
||
Error message is:<br>
|
||
|
||
<pre>Setting up NAT...<br>iptables: Invalid argument<br>Terminated<br><br></pre>
|
||
The solution is to put "no" in the LOCAL column. Kernel support for LOCAL=yes
|
||
has never worked properly and 2.4.18-10 has disabled it. The 2.4.19 kernel
|
||
contains corrected support under a new kernel configuraiton option; see
|
||
<a href="Documentation.htm#NAT">http://www.shorewall.net/Documentation.htm#NAT</a><br>
|
||
|
||
<p><font size="2"> Last updated 10/9/2002 -
|
||
<a href="support.htm">Tom Eastep</a></font> </p>
|
||
|
||
<p><font face="Trebuchet MS"><a href="copyright.htm"><font size="2">Copyright</font>
|
||
<20> <font size="2">2001, 2002 Thomas M. Eastep.</font></a></font></p>
|
||
<br>
|
||
<br>
|
||
<br>
|
||
<br>
|
||
<br>
|
||
<br>
|
||
<br>
|
||
</body>
|
||
</html>
|