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Update my config doc for IPSEC
git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@1690 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
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teastep
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@ -17,7 +17,7 @@
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</author>
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</authorgroup>
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<pubdate>2004-10-01</pubdate>
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<pubdate>2004-10-12</pubdate>
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<copyright>
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<year>2001-2004</year>
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@ -622,6 +622,36 @@ to debug/develop the newnat interface.</programlisting></para>
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url="SimpleBridge.html">Shorewall Simple Bridge
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documentation</ulink>.</para>
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</section>
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<section id="faq40">
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<title>(FAQ 40) Shorewall is Blocking my OpenVPN Tunnel</title>
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<para>I have this entry in <ulink
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url="Documentation.htm#Tunnels">/etc/shorewall/tunnels</ulink>:</para>
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<programlisting># TYPE ZONE GATEWAY GATEWAY
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# ZONE
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openvpn:5000 net 69.145.71.133</programlisting>
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<para>Yet I am seeing this log message:</para>
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<programlisting>Oct 12 13:41:03 localhost kernel: Shorewall:net2all:DROP:IN=eth0 OUT=
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MAC=00:04:5a:7f:92:9f:00:b0:c2:89:68:e4:08:00 SRC=69.145.71.133
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DST=216.187.138.18 LEN=42 TOS=0x00 PREC=0x00 TTL=46 ID=11 DF PROTO=UDP
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SPT=33120 DPT=5000 LEN=22</programlisting>
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<para><emphasis role="bold">Answer</emphasis>: Shorewall's <emphasis
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role="bold">openvpn</emphasis> tunnel type assumes that OpenVPN will be
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using the same port (default 5000) for both the source and destination
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port. From the above message, it is clear that the remote client is
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using source port 33120. The solution is to replace your <ulink
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url="Documentation.htm#Tunnels">/etc/shorewall/tunnels</ulink> entry
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with this one:</para>
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<programlisting># TYPE ZONE GATEWAY GATEWAY
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# ZONE
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generic:udp:5000 net 69.145.71.133</programlisting>
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</section>
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</section>
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<section>
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@ -638,7 +668,7 @@ to debug/develop the newnat interface.</programlisting></para>
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<quote>man syslog</quote>) in your <ulink
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url="Documentation.htm#Policy">policies</ulink> and <ulink
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url="Documentation.htm#Rules">rules</ulink>. The destination for
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messaged logged by syslog is controlled by
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messages logged by syslog is controlled by
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<filename>/etc/syslog.conf</filename> (see <quote>man
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syslog.conf</quote>). When you have changed /etc/syslog.conf, be sure to
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restart syslogd (on a RedHat system, <quote>service syslog
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@ -1887,6 +1917,16 @@ REJECT fw net:216.239.39.99 all</programlisting>Given that
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<title>Revision History</title>
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<para><revhistory>
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<revision>
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<revnumber>1.34</revnumber>
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<date>2004-10-12</date>
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<authorinitials>TE</authorinitials>
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<revremark>Add FAQ 40.</revremark>
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</revision>
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<revision>
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<revnumber>1.33</revnumber>
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@ -382,16 +382,6 @@ sainfo address 192.168.1.0/24 any address 134.28.54.2/32 any
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compression_algorithm deflate ;
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}</programlisting>
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</blockquote>
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<para>The <filename>/etc/racoon/psk.txt file</filename> on gateway
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A:</para>
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<blockquote>
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<programlisting>134.28.54.2 <the key></programlisting>
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</blockquote>
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<para>Note that the <emphasis role="bold">same key </emphasis>must be used
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in both directions.</para>
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</section>
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<section>
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@ -518,6 +508,9 @@ spdadd 192.168.20.40/32 192.168.20.10/32 any -P in ipsec esp/transport/192.168.
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<programlisting>192.168.20.20 <key for 192.168.20.10<->192.168.20.20>
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192.168.20.30 <key for 192.168.20.10<->192.168.20.30>
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192.168.20.40 <key for 192.168.20.10<->192.168.20.40></programlisting>
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<para>Note that the <emphasis role="bold">same key</emphasis>must be
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used in both directions.</para>
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</blockquote>
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<para>Shorewall configuration goes as follows:</para>
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@ -21,7 +21,7 @@
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</author>
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</authorgroup>
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<pubdate>2004-09-29</pubdate>
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<pubdate>2004-10-12</pubdate>
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<copyright>
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<year>2003</year>
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@ -104,8 +104,10 @@ openvpn net 134.28.54.2</programlisting>
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<note>
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<para>Some OpenVPN clients (notabley on <trademark>Windows</trademark>)
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do not use the same source and destination ports which can cause
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problems. If system B is a Windows system, then you will want the
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following entry in /etc/shorewall/tunnels instead of the one
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problems. If system B is a Windows system or if you find that Shorewall
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is blocking the UDP port 5000 traffic from the remote gateway, then you
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will want the following entry in
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<filename>/etc/shorewall/tunnels</filename> instead of the one
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above:</para>
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<programlisting>#TYPE ZONE GATEWAY GATEWAY ZONE
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@ -15,7 +15,7 @@
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</author>
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</authorgroup>
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<pubdate>2004-10-04</pubdate>
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<pubdate>2004-10-14</pubdate>
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<copyright>
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<year>2004</year>
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@ -170,11 +170,9 @@
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<para>Unfortunately, Linux distributions don't have good bridge
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configuration tools and the network configuration GUIs don't detect the
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presence of bridge devices. You may refer to <ulink url="myfiles.htm">my
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configuration files</ulink> for an example of configuring a two-port
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bridge at system boot under <trademark>SuSE</trademark>. Here is an
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excerpt from a Debian <filename>/etc/network/interfaces</filename> file
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for a two-port bridge with a static IP address:</para>
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presence of bridge devices. Here is an excerpt from a Debian
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<filename>/etc/network/interfaces</filename> file for a two-port bridge
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with a static IP address:</para>
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<blockquote>
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<programlisting>auto br0
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@ -221,9 +219,97 @@ ONBOOT=yes</programlisting>
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</blockquote>
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<para>On both the SuSE and Mandrake systems, a separate script is required
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to configure the bridge itself (again see <ulink url="myfiles.htm">my
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configuration files</ulink> for an example -
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<filename>/etc/init.d/bridge</filename>).</para>
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to configure the bridge itself.</para>
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<para>Here are scripts that I used on a <trademark>Suse</trademark> 9.1
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system.</para>
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<blockquote>
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<para><filename>/etc/sysconfig/network/ifcfg-br0</filename></para>
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<programlisting>BOOTPROTO='dhcp'
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REMOTE_IPADDR=''
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STARTMODE='onboot'
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UNIQUE='3hqH.MjuOqWfSZ+C'
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WIRELESS='no'
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MTU=''</programlisting>
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<para><filename>/etc/init.d/bridge</filename><programlisting>#!/bin/sh
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################################################################################
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# Script to create a bridge
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#
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# (c) 2004 - Tom Eastep (teastep@shorewall.net)
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#
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# Modify the following variables to match your configuration
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#
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#### BEGIN INIT INFO
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# Provides: bridge
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# Required-Start: coldplug
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# Required-Stop:
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# Default-Start: 2 3 5
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# Default-Stop: 0 1 6
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# Description: starts and stops a bridge
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### END INIT INFO
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#
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# chkconfig: 2345 05 89
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# description: GRE/IP Tunnel
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#
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################################################################################
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PATH=$PATH:/sbin:/usr/sbin:/usr/local/sbin
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INTERFACES="eth1 eth0"
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BRIDGE="br0"
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MODULES="tulip"
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do_stop() {
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echo "Stopping Bridge $BRIDGE"
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brctl delbr $BRIDGE
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for interface in $INTERFACES; do
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ip link set $interface down
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done
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}
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do_start() {
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echo "Starting Bridge $BRIDGE"
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for module in $MODULES; do
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modprobe $module
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done
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sleep 5
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for interface in $INTERFACES; do
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ip link set $interface up
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done
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brctl addbr $BRIDGE
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for interface in $INTERFACES; do
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brctl addif $BRIDGE $interface
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done
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}
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case "$1" in
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start)
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do_start
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;;
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stop)
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do_stop
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;;
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restart)
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do_stop
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sleep 1
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do_start
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;;
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*)
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echo "Usage: $0 {start|stop|restart}"
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exit 1
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esac
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exit 0</programlisting></para>
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</blockquote>
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<para>Axel Westerhold has contributed this example of configuring a bridge
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with a static IP address on a Fedora System (Core 1 and Core 2 Test 1).
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@ -462,4 +548,4 @@ dmz br0:eth2</programlisting>
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</listitem>
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</itemizedlist>
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</section>
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</article>
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</article>
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</author>
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</authorgroup>
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<pubdate>2004-10-09</pubdate>
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<pubdate>2004-10-14</pubdate>
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<copyright>
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<year>2001-2004</year>
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@ -48,18 +48,18 @@
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<caution>
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<para>The configuration shown here corresponds to Shorewall version
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2.1.7. My configuration uses features not available in earlier Shorewall
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releases.</para>
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2.1.11. My configuration uses features not available in earlier
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Shorewall releases.</para>
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</caution>
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<para>I have DSL service and have 5 static IP addresses
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(206.124.146.176-180). My DSL <quote>modem</quote> (Westell 2200) is
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connected to eth0 and has IP address 192.168.1.1 (factory default). The
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connected to eth1 and has IP address 192.168.1.1 (factory default). The
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modem is configured in <quote>bridge</quote> mode so PPPoE is not
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involved. I have a local network connected to eth2 (subnet 192.168.1.0/24)
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and a DMZ connected to eth1 (206.124.146.176/32). Note that I configure
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the same IP address on both <filename class="devicefile">eth0</filename>
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and <filename class="devicefile">eth1</filename>.</para>
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involved. I have a local network connected to eth0 (subnet 192.168.1.0/24)
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and a DMZ connected to eth2 (206.124.146.176/32). Note that I configure
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the same IP address on both <filename class="devicefile">eth1</filename>
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and <filename class="devicefile">eth2</filename>.</para>
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<para>In this configuration:</para>
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@ -96,8 +96,8 @@
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<itemizedlist>
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<listitem>
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<para>I have Ursa (193.168.1.5/206.124.146.178) configured as a 2-port
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bridge.</para>
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<para>I have Ursa (192.168.1.5/192.168.3.254/206.124.146.178)
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configured as an IPSEC gateway for the Wireless network.</para>
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</listitem>
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<listitem>
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@ -108,15 +108,14 @@
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<para>The firewall runs on a 384MB K-6/II with SuSE 9.1.</para>
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<para>Ursa runs Samba for file sharing with the Windows systems..</para>
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<para>Ursa runs Samba for file sharing with the Windows systems and is
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configured as a Wins server.</para>
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<para>The wireless network connects to Ursa's eth0 via a LinkSys
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<para>The wireless network connects to Ursa's eth1 via a LinkSys
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WAP11. In additional to using the rather weak WEP 40-bit encryption
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(64-bit with the 24-bit preamble), I use <ulink
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url="MAC_Validation.html">MAC verification</ulink>. This is still a weak
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combination and if I lived near a wireless <quote>hot spot</quote>, I
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would probably add IPSEC or something similar to my WiFi->local
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connections.</para>
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url="MAC_Validation.html">MAC verification</ulink> and <ulink
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url="IPSEC-2.6.html">Kernel 2.6 IPSEC</ulink>.</para>
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<para>The single system in the DMZ (address 206.124.146.177) runs postfix,
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Courier IMAP (imaps and pop3), DNS, a Web server (Apache) and an FTP
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@ -183,6 +182,7 @@ FW=fw
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IP_FORWARDING=On
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ADD_IP_ALIASES=Yes
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ADD_SNAT_ALIASES=Yes
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RETAIN_ALIASES=Yes
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TC_ENABLED=Yes
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CLEAR_TC=Yes
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MARK_IN_FORWARD_CHAIN=No
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@ -190,15 +190,16 @@ CLAMPMSS=Yes
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ROUTE_FILTER=No
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DETECT_DNAT_IPADDRS=Yes
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MUTEX_TIMEOUT=60
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NEWNOTSYN=Yes
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BLACKLISTNEWONLY=Yes
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DELAYBLACKLISTLOAD=Yes
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DYNAMIC_ZONES=No
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DISABLE_IPV6=Yes
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PKTTYPE=No
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BLACKLIST_DISPOSITION=DROP
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MACLIST_DISPOSITION=REJECT
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TCP_FLAGS_DISPOSITION=DROP
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</programlisting>
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TCP_FLAGS_DISPOSITION=DROP</programlisting>
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</blockquote>
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</section>
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@ -209,7 +210,7 @@ TCP_FLAGS_DISPOSITION=DROP
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<para><programlisting>MIRRORS=<list of shorewall mirror ip addresses>
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NTPSERVERS=<list of the NTP servers I sync with>
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TEXAS=<ip address of gateway in Plano>
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OMAK=<ip address of tipper while we are at our second home>
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OMAK=64.139.97.48
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LOG=info
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EXT_IF=eth1
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INT_IF=eth0
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@ -222,10 +223,10 @@ DMZ_IF=eth2</programlisting></para>
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<blockquote>
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<programlisting>#ZONE DISPLAY COMMENTS
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omak Omak Our Laptop at our second home
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net Internet Internet
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dmz DMZ Demilitarized zone
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loc Local Local networks
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omak Omak Our Laptop in Omak
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tx Texas Peer Network in Dallas
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#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE
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</programlisting>
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@ -240,10 +241,10 @@ tx Texas Peer Network in Dallas
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up my Ethernet interfaces.</para>
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<programlisting>#ZONE INTERFACE BROADCAST OPTIONS
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net $EXT_IF 206.124.146.255 dhcp,norfc1918,routefilter,blacklist,tcpflags,nosmurfs
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loc $INT_IF 192.168.1.255 dhcp
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dmz $DMZ_IF -
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- texas -
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net $EXT_IF 206.124.146.255 dhcp,norfc1918,routefilter,logmartians,blacklist,tcpflags,nosmurfs
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loc $INT_IF detect dhcp
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dmz $DMZ_IF -
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- texas -
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#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE</programlisting>
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</blockquote>
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</section>
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@ -323,7 +324,6 @@ $EXT_IF $OMAK
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<programlisting>#SOURCE DESTINATION POLICY LOG LEVEL BURST:LIMIT
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fw fw ACCEPT
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loc net ACCEPT
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fw sec ACCEPT
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omak fw ACCEPT
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fw omak ACCEPT
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omak loc ACCEPT
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@ -334,7 +334,7 @@ omak dmz NONE
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dmz omak NONE
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omak tx NONE
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tx omak NONE
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$FW loc ACCEPT #Firewall to Local
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$FW loc ACCEPT
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$FW tx ACCEPT
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loc tx ACCEPT
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loc fw REJECT $LOG
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@ -362,8 +362,7 @@ all all REJECT $LOG
|
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<programlisting>#INTERFACE SUBNET ADDRESS
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+$EXT_IF::192.168.1.1 0.0.0.0/0 192.168.1.254
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$EXT_IF:2 eth2 206.124.146.179
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#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE
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</programlisting>
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#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE</programlisting>
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</blockquote>
|
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</section>
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@ -433,26 +432,6 @@ ACCEPT $MIRRORS
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</blockquote>
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</section>
|
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|
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<section>
|
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<title>/etc/shorewall/action.Drop</title>
|
||||
|
||||
<blockquote>
|
||||
<para>This is my common action for the DROP policy. It is like the
|
||||
standard <emphasis role="bold">Drop</emphasis> action except that it
|
||||
allows <quote>Ping</quote>.</para>
|
||||
|
||||
<programlisting>#TARGET SOURCE DEST PROTO DEST SOURCE RATE USER/
|
||||
# PORT(S) PORT(S) LIMIT GROUP
|
||||
RejectAuth
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AllowPing
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dropBcast
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DropSMB
|
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DropUPnP
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dropNotSyn
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DropDNSrep</programlisting>
|
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</blockquote>
|
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</section>
|
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|
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<section>
|
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<title>/etc/shorewall/action.Reject</title>
|
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@ -477,6 +456,74 @@ DROP loc:eth2:!192.168.1.0/24 #So that my braindead Windows[tm] XP sy
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>/etc/racoon/setkey.conf</title>
|
||||
|
||||
<blockquote>
|
||||
<para>This defines the policies for encryption to/from our second
|
||||
home.</para>
|
||||
|
||||
<programlisting>flush;
|
||||
spdflush;
|
||||
|
||||
spdadd 192.168.1.0/24 64.139.97.48/32 any -P out ipsec esp/tunnel/206.124.146.176-64.139.97.48/require;
|
||||
spdadd 64.139.97.48/32 192.168.1.0/24 any -P in ipsec esp/tunnel/64.139.97.48-206.124.146.176/require;
|
||||
spdadd 64.139.97.48/32 206.124.146.176/32 any -P in ipsec esp/tunnel/64.139.97.48-206.124.146.176/require;
|
||||
spdadd 206.124.146.176/32 64.139.97.48/32 any -P out ipsec esp/tunnel/206.124.146.176-64.139.97.48/require;
|
||||
</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>/etc/racoon/racoon.conf</title>
|
||||
|
||||
<blockquote>
|
||||
<para>SA parameters for communication with our second home.</para>
|
||||
|
||||
<programlisting> path certificate "/etc/certs" ;
|
||||
listen
|
||||
{
|
||||
isakmp 206.124.146.176;
|
||||
}
|
||||
|
||||
remote 64.139.97.48
|
||||
{
|
||||
exchange_mode main ;
|
||||
certificate_type x509 "gateway.pem" "gateway_key.pem";
|
||||
verify_cert on;
|
||||
my_identifier asn1dn ;
|
||||
peers_identifier asn1dn ;
|
||||
verify_identifier on ;
|
||||
lifetime time 24 hour ;
|
||||
proposal {
|
||||
encryption_algorithm 3des;
|
||||
hash_algorithm sha1;
|
||||
authentication_method rsasig ;
|
||||
dh_group 2 ;
|
||||
}
|
||||
}
|
||||
|
||||
sainfo address 192.168.1.0/24 any address 64.139.97.48/32 any
|
||||
{
|
||||
pfs_group 2;
|
||||
lifetime time 12 hour ;
|
||||
encryption_algorithm 3des, blowfish, des, rijndael ;
|
||||
authentication_algorithm hmac_sha1, hmac_md5 ;
|
||||
compression_algorithm deflate ;
|
||||
}
|
||||
|
||||
sainfo address 206.124.146.176/32 any address 64.139.97.48/32 any
|
||||
{
|
||||
pfs_group 2;
|
||||
lifetime time 12 hour ;
|
||||
encryption_algorithm 3des, blowfish, des, rijndael ;
|
||||
authentication_algorithm hmac_sha1, hmac_md5 ;
|
||||
compression_algorithm deflate ;
|
||||
}
|
||||
</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>Rules File (The shell variables are set in
|
||||
/etc/shorewall/params)</title>
|
||||
@ -488,16 +535,17 @@ DROP loc:eth2:!192.168.1.0/24 #So that my braindead Windows[tm] XP sy
|
||||
###############################################################################################################################################################################
|
||||
# Local Network to Internet - Reject attempts by Trojans to call home, direct SMTP and MS Message Service
|
||||
#
|
||||
RejectSMTP loc net tcp 25
|
||||
REJECT:$LOG loc net tcp 6667,25
|
||||
REJECT:$LOG loc net udp 1025:1031
|
||||
#
|
||||
# Stop NETBIOS crap since our policy is ACCEPT
|
||||
# Stop NETBIOS crap
|
||||
#
|
||||
REJECT loc net tcp 137,445
|
||||
REJECT loc net udp 137:139
|
||||
#
|
||||
DROP loc:!192.168.1.0/24 net
|
||||
# Stop my idiotic XP box from sending to the net with an HP source IP address
|
||||
#
|
||||
DROP loc:!192.168.0.0/22 net
|
||||
#
|
||||
# SQUID
|
||||
#
|
||||
@ -505,13 +553,13 @@ REDIRECT loc 3128 tcp
|
||||
###############################################################################################################################################################################
|
||||
# Local Network to Firewall
|
||||
#
|
||||
DROP loc:!192.168.1.0/24 fw
|
||||
DROP loc:!192.168.0.0/22 fw # Silently drop traffic with an HP source IP from my XP box
|
||||
ACCEPT loc fw tcp ssh,time
|
||||
ACCEPT loc fw udp 161,ntp
|
||||
###############################################################################################################################################################################
|
||||
# Local Network to DMZ
|
||||
#
|
||||
DROP loc:!192.168.1.0/24 dmz
|
||||
DROP loc:!192.168.0.0/22 dmz
|
||||
ACCEPT loc dmz udp domain,xdmcp
|
||||
ACCEPT loc dmz tcp www,smtp,smtps,domain,ssh,imap,https,imaps,cvspserver,ftp,10027,pop3 -
|
||||
###############################################################################################################################################################################
|
||||
@ -530,12 +578,12 @@ DropPing net loc
|
||||
###############################################################################################################################################################################
|
||||
# Internet to DMZ
|
||||
#
|
||||
DNAT- net dmz:206.124.146.177 tcp smtp - 206.124.146.179,206.124.146.1
|
||||
78
|
||||
DNAT- net dmz:206.124.146.177 tcp smtp - 206.124.146.179,206.124.146.178
|
||||
ACCEPT net dmz tcp smtp,smtps,www,ftp,imaps,domain,https,cvspserver -
|
||||
ACCEPT net dmz udp domain
|
||||
ACCEPT net dmz udp 33434:33436
|
||||
Mirrors net dmz tcp rsync
|
||||
ACCEPT net:$OMAK dmz tcp 22 #SSH from Omak
|
||||
AllowPing net dmz
|
||||
###############################################################################################################################################################################
|
||||
#
|
||||
@ -621,27 +669,24 @@ ACCEPT tx loc:192.168.1.5 all
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>Bridge (Ursa) Configuration</title>
|
||||
<title>IPSEC Gateway (Ursa) Configuration</title>
|
||||
|
||||
<para>As mentioned above, Ursa acts as a bridge. It's view of the network
|
||||
is diagrammed in the following figure.</para>
|
||||
<para>As mentioned above, Ursa acts as an IPSEC gateway for the wireless
|
||||
network. It's view of the network is diagrammed in the following
|
||||
figure.</para>
|
||||
|
||||
<graphic fileref="images/network1.png" />
|
||||
<graphic align="center" fileref="images/network1.png" valign="middle" />
|
||||
|
||||
<para>I've included the files that I used to configure that system -- some
|
||||
of them are SuSE-specific.</para>
|
||||
|
||||
<para>The configuration on Wookie can be modified to test various bridging
|
||||
features -- otherwise, it serves to isolate the Wireless network from the
|
||||
rest of our systems.</para>
|
||||
|
||||
<section>
|
||||
<title>shorewall.conf</title>
|
||||
|
||||
<blockquote>
|
||||
<para>Only the changes from the defaults are shown.</para>
|
||||
|
||||
<programlisting>BRIDGING=Yes</programlisting>
|
||||
<programlisting>CLAMPMSS=1400 # There is an MTU problem between Tipper and the IMAP server at work. This corrects the problem</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
@ -657,6 +702,7 @@ ACCEPT tx loc:192.168.1.5 all
|
||||
loc Local Local networks
|
||||
net Internet The Big Bad Internet
|
||||
WiFi Wireless Wireless Network
|
||||
sec Secure Secure Wireless Network
|
||||
#LAST LINE - ADD YOUR ENTRIES ABOVE THIS ONE - DO NOT REMOVE
|
||||
</programlisting>
|
||||
</blockquote>
|
||||
@ -669,17 +715,26 @@ WiFi Wireless Wireless Network
|
||||
<programlisting>#SOURCE DEST POLICY LOG LIMIT:BURST
|
||||
loc fw ACCEPT
|
||||
loc net NONE
|
||||
loc WiFi ACCEPT
|
||||
loc sec ACCEPT
|
||||
net fw ACCEPT
|
||||
net WiFi ACCEPT
|
||||
net loc NONE
|
||||
net sec ACCEPT
|
||||
sec fw ACCEPT
|
||||
sec loc ACCEPT
|
||||
sec net ACCEPT
|
||||
fw loc ACCEPT
|
||||
fw net ACCEPT
|
||||
fw sec ACCEPT
|
||||
fw WiFi ACCEPT
|
||||
sec WiFi NONE
|
||||
WiFi sec NONE
|
||||
WiFi net ACCEPT
|
||||
fw all ACCEPT
|
||||
#
|
||||
# THE FOLLOWING POLICY MUST BE LAST
|
||||
#
|
||||
all all REJECT info
|
||||
#LAST LINE -- DO NOT REMOVE</programlisting>
|
||||
|
||||
<blockquote>
|
||||
<para></para>
|
||||
</blockquote>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
@ -688,19 +743,31 @@ all all REJECT info
|
||||
|
||||
<blockquote>
|
||||
<programlisting>#ZONE INTERFACE BROADCAST OPTIONS
|
||||
- br0 192.168.1.255 dhcp
|
||||
net eth0 192.168.1.255 dhcp,nobogons,blacklist
|
||||
WiFi eth1 192.168.3.255 nobogons,blacklist,maclist,routeback
|
||||
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>ipsec</title>
|
||||
|
||||
<blockquote>
|
||||
<programlisting>#ZONE IPSEC OPTIONS IN OUT
|
||||
# ONLY OPTIONS OPTIONS
|
||||
sec yes mode=tunnel tunnel-src=192.168.3.8 tunnel-dst=192.168.3.8
|
||||
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE
|
||||
</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>hosts</title>
|
||||
|
||||
<blockquote>
|
||||
<programlisting>#ZONE HOST(S) OPTIONS
|
||||
loc br0:eth1:192.168.1.0/24
|
||||
net br0:eth1
|
||||
WiFi br0:eth0 maclist
|
||||
sec eth1:0.0.0.0/0 routeback
|
||||
loc eth0:192.168.1.0/24
|
||||
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS LINE -- DO NOT REMOVE</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
@ -711,16 +778,6 @@ WiFi br0:eth0 maclist
|
||||
<blockquote>
|
||||
<programlisting>#ACTION SOURCE DEST PROTO DEST SOURCE ORIGINAL
|
||||
# PORT PORT(S) DEST
|
||||
ACCEPT WiFi loc udp 137:139
|
||||
ACCEPT WiFi loc tcp 22,80,137,139,445,631,901,3389
|
||||
ACCEPT WiFi loc udp 1024: 137
|
||||
ACCEPT WiFi loc udp 177,123
|
||||
ACCEPT WiFi loc:192.168.1.4 tcp 1723
|
||||
ACCEPT WiFi loc:192.168.1.4 47
|
||||
ACCEPT WiFi loc tcp 5900:5909
|
||||
|
||||
ACCEPT WiFi fw tcp ssh,80,111,137,139,445,9100:9104
|
||||
ACCEPT WiFi fw udp
|
||||
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
@ -730,7 +787,7 @@ ACCEPT WiFi fw udp
|
||||
|
||||
<blockquote>
|
||||
<programlisting>#INTERFACE HOST(S) OPTIONS
|
||||
br0 0.0.0.0/0 routeback
|
||||
eth0 0.0.0.0/0
|
||||
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
@ -740,119 +797,258 @@ br0 0.0.0.0/0 routeback
|
||||
|
||||
<blockquote>
|
||||
<programlisting>#INTERFACE MAC IP ADDRESSES (Optional)
|
||||
br0:eth0 00:A0:1C:DB:0C:A0 192.168.1.7 #Work Laptop
|
||||
br0:eth0 00:04:59:0e:85:b9 #WAP11
|
||||
br0:eth0 00:06:D5:45:33:3c #WET11
|
||||
br0:eth0 00:0b:c1:53:cc:97 192.168.1.8 #TIPPER
|
||||
eth1 00:A0:1C:DB:0C:A0 192.168.3.7 #Work Laptop
|
||||
eth1 00:04:59:0e:85:b9 #WAP11
|
||||
eth1 00:06:D5:45:33:3c #WET11
|
||||
eth1 00:0b:c1:53:cc:97 192.168.3.8 #TIPPER
|
||||
#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>/etc/init.d/bridge</title>
|
||||
<title>/etc/racoon/setkey.conf</title>
|
||||
|
||||
<blockquote>
|
||||
<para>This file is SuSE-specific and creates the bridge device
|
||||
<filename class="devicefile">br0</filename>. A script for other
|
||||
distributions would be similar (see the <ulink
|
||||
url="bridge.html">Shorewall Bridge documentation</ulink> for
|
||||
examples).</para>
|
||||
<para>This defines encryption policies to/from the wireless
|
||||
network.</para>
|
||||
|
||||
<programlisting>#!/bin/sh
|
||||
################################################################################
|
||||
# Script to create a bridge
|
||||
#
|
||||
# This program is under GPL [http://www.gnu.org/copyleft/gpl.htm]
|
||||
#
|
||||
# (c) 2004 - Tom Eastep (teastep@shorewall.net)
|
||||
#
|
||||
# Modify the following variables to match your configuration
|
||||
#
|
||||
#### BEGIN INIT INFO
|
||||
# Provides: bridge
|
||||
# Required-Start: coldplug
|
||||
# Required-Stop:
|
||||
# Default-Start: 2 3 5
|
||||
# Default-Stop: 0 1 6
|
||||
# Description: starts and stops a bridge
|
||||
### END INIT INFO
|
||||
#
|
||||
# chkconfig: 2345 05 89
|
||||
# description: Layer 2 Bridge
|
||||
#
|
||||
################################################################################
|
||||
<programlisting>flush;
|
||||
spdflush;
|
||||
|
||||
PATH=$PATH:/sbin:/usr/sbin:/usr/local/sbin
|
||||
|
||||
INTERFACES="eth0 eth1"
|
||||
BRIDGE="br0"
|
||||
|
||||
do_stop() {
|
||||
echo "Stopping Bridge $BRIDGE"
|
||||
brctl delbr $BRIDGE
|
||||
for interface in $INTERFACES; do
|
||||
ip link set $interface down
|
||||
done
|
||||
}
|
||||
|
||||
do_start() {
|
||||
|
||||
echo "Starting Bridge $BRIDGE"
|
||||
for interface in $INTERFACES; do
|
||||
ip link set $interface up
|
||||
done
|
||||
|
||||
brctl addbr $BRIDGE
|
||||
|
||||
for interface in $INTERFACES; do
|
||||
brctl addif $BRIDGE $interface
|
||||
done
|
||||
}
|
||||
|
||||
case "$1" in
|
||||
start)
|
||||
do_start
|
||||
;;
|
||||
stop)
|
||||
do_stop
|
||||
;;
|
||||
restart)
|
||||
do_stop
|
||||
sleep 1
|
||||
do_start
|
||||
;;
|
||||
*)
|
||||
echo "Usage: $0 {start|stop|restart}"
|
||||
exit 1
|
||||
esac
|
||||
exit 0</programlisting>
|
||||
spdadd 0.0.0.0/0 192.168.3.8/32 any -P out ipsec esp/tunnel/192.168.3.254-192.168.3.8/require;
|
||||
spdadd 192.168.3.8/32 0.0.0.0/0 any -P in ipsec esp/tunnel/192.168.3.8-192.168.3.254/require;</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>/etc/sysconfig/network/ifcfg-br0</title>
|
||||
<title>/etc/racoon/racoon.conf</title>
|
||||
|
||||
<blockquote>
|
||||
<para>This file is SuSE-specific</para>
|
||||
<para>SA parameters for communication with our wireless network
|
||||
(Tipper is currently the only Wireless host).</para>
|
||||
|
||||
<programlisting>BOOTPROTO='dhcp'
|
||||
REMOTE_IPADDR=''
|
||||
STARTMODE='onboot'
|
||||
UNIQUE='3hqH.MjuOqWfSZ+C'
|
||||
WIRELESS='no'
|
||||
MTU=''</programlisting>
|
||||
<programlisting>path certificate "/etc/certs";
|
||||
|
||||
listen
|
||||
{
|
||||
isakmp 192.168.3.254;
|
||||
}
|
||||
|
||||
remote 192.168.3.8
|
||||
{
|
||||
exchange_mode main ;
|
||||
certificate_type x509 "ursa.pem" "ursa_key.pem";
|
||||
verify_cert on;
|
||||
my_identifier asn1dn ;
|
||||
peers_identifier asn1dn ;
|
||||
verify_identifier on ;
|
||||
lifetime time 24 hour ;
|
||||
proposal {
|
||||
encryption_algorithm 3des;
|
||||
hash_algorithm sha1;
|
||||
authentication_method rsasig ;
|
||||
dh_group 2 ;
|
||||
}
|
||||
}
|
||||
|
||||
sainfo address 0.0.0.0/0 any address 192.168.3.8/32 any
|
||||
{
|
||||
pfs_group 2;
|
||||
lifetime time 12 hour ;
|
||||
encryption_algorithm 3des, blowfish, des, rijndael ;
|
||||
authentication_algorithm hmac_sha1, hmac_md5 ;
|
||||
compression_algorithm deflate ;
|
||||
}</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>Tipper Configuration</title>
|
||||
|
||||
<para>This laptop is either configured on our wireless network
|
||||
(192.168.3.8) or as a standalone system in our second home (64.139.97.48).
|
||||
The Shorewall and Racoon configurations are the same regardless of where
|
||||
Tipper is connected -- only the IP configuration changes.</para>
|
||||
|
||||
<para>Tipper's view of the work is shown in the following diagram:</para>
|
||||
|
||||
<graphic align="center" fileref="images/network2.png" valign="middle" />
|
||||
|
||||
<para>The key configuration files are shown in the following
|
||||
sections.</para>
|
||||
|
||||
<section>
|
||||
<title>zones</title>
|
||||
|
||||
<blockquote>
|
||||
<programlisting>#ZONE DISPLAY COMMENTS
|
||||
home Home Shorewall Network
|
||||
net Net Internet
|
||||
#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE
|
||||
</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>/etc/sysconfig/network/routes</title>
|
||||
<title>policy</title>
|
||||
|
||||
<blockquote>
|
||||
<para>This file is SuSE-specific</para>
|
||||
<programlisting>#SOURCE DEST POLICY LOG LEVEL LIMIT:BURST
|
||||
fw net ACCEPT
|
||||
fw home ACCEPT
|
||||
home fw ACCEPT
|
||||
net home NONE
|
||||
home net NONE
|
||||
net all DROP info
|
||||
# The FOLLOWING POLICY MUST BE LAST
|
||||
all all REJECT info
|
||||
#LAST LINE -- ADD YOUR ENTRIES ABOVE THIS LINE -- DO NOT REMOVE</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
<programlisting>192.168.1.0/24 dev br0 proto kernel scope link src 192.168.1.5
|
||||
127.0.0.0/8 dev lo scope link
|
||||
default via 192.168.1.254 dev br0</programlisting>
|
||||
<section>
|
||||
<title>interfaces</title>
|
||||
|
||||
<blockquote>
|
||||
<programlisting>#ZONE INTERFACE BROADCAST OPTIONS
|
||||
net eth0 detect dhcp,tcpflags
|
||||
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>ipsec</title>
|
||||
|
||||
<blockquote>
|
||||
<programlisting>#ZONE IPSEC OPTIONS IN OUT
|
||||
# ONLY OPTIONS OPTIONS
|
||||
home yes mode=tunnel
|
||||
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>hosts</title>
|
||||
|
||||
<blockquote>
|
||||
<programlisting>#ZONE HOST(S) OPTIONS
|
||||
home eth0:0.0.0.0/0
|
||||
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS LINE -- DO NOT REMOVE</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>rules</title>
|
||||
|
||||
<blockquote>
|
||||
<programlisting>#ACTION SOURCE DEST PROTO DEST SOURCE ORIGINAL RATE USER/
|
||||
# PORT PORT(S) DEST LIMIT GROUP
|
||||
ACCEPT net fw icmp 8
|
||||
ACCEPT net fw tcp 22
|
||||
ACCEPT net fw tcp 4000:4100
|
||||
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>/etc/racoon/setkey.conf</title>
|
||||
|
||||
<blockquote>
|
||||
<programlisting>flush;
|
||||
spdflush;
|
||||
|
||||
# Policies for while we are in Omak
|
||||
|
||||
spdadd 64.139.97.48/32 206.124.146.176/32 any -P out ipsec esp/tunnel/64.139.97.48-206.124.146.176/require;
|
||||
spdadd 206.124.146.176/32 64.139.97.48/32 any -P in ipsec esp/tunnel/206.124.146.176-64.139.97.48/require;
|
||||
spdadd 192.168.1.0/24 64.139.97.48/32 any -P in ipsec esp/tunnel/206.124.146.176-64.139.97.48/require;
|
||||
spdadd 64.139.97.48/32 192.168.1.0/24 any -P out ipsec esp/tunnel/64.139.97.48-206.124.146.176/require;
|
||||
|
||||
# Policies for while we're connected via Wireless at home
|
||||
|
||||
spdadd 192.168.3.8/32 192.168.3.8/32 any -P in none;
|
||||
spdadd 192.168.3.8/32 192.168.3.8/32 any -P out none;
|
||||
spdadd 127.0.0.0/8 127.0.0.0/8 any -P in none;
|
||||
spdadd 127.0.0.0/8 127.0.0.0/8 any -P out none;
|
||||
spdadd 0.0.0.0/0 192.168.3.8/32 any -P in ipsec esp/tunnel/192.168.3.254-192.168.3.8/require;
|
||||
spdadd 192.168.3.8/32 0.0.0.0/0 any -P out ipsec esp/tunnel/192.168.3.8-192.168.3.254/require;
|
||||
</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
|
||||
<section>
|
||||
<title>/etc/racoon/racoon.conf</title>
|
||||
|
||||
<blockquote>
|
||||
<programlisting>path certificate "/etc/certs";
|
||||
|
||||
listen
|
||||
{
|
||||
isakmp 64.139.97.48;
|
||||
isakmp 192.168.3.8;
|
||||
}
|
||||
|
||||
remote 206.124.146.176
|
||||
{
|
||||
exchange_mode main ;
|
||||
certificate_type x509 "tipper.pem" "tipper_key.pem";
|
||||
verify_cert on;
|
||||
my_identifier asn1dn ;
|
||||
peers_identifier asn1dn ;
|
||||
verify_identifier on ;
|
||||
lifetime time 24 hour ;
|
||||
proposal {
|
||||
encryption_algorithm 3des;
|
||||
hash_algorithm sha1;
|
||||
authentication_method rsasig ;
|
||||
dh_group 2 ;
|
||||
}
|
||||
}
|
||||
|
||||
remote 192.168.3.254
|
||||
{
|
||||
exchange_mode main ;
|
||||
certificate_type x509 "tipper.pem" "tipper_key.pem";
|
||||
verify_cert on;
|
||||
my_identifier asn1dn ;
|
||||
peers_identifier asn1dn ;
|
||||
verify_identifier on ;
|
||||
lifetime time 24 hour ;
|
||||
proposal {
|
||||
encryption_algorithm 3des;
|
||||
hash_algorithm sha1;
|
||||
authentication_method rsasig ;
|
||||
dh_group 2 ;
|
||||
}
|
||||
}
|
||||
|
||||
sainfo address 64.139.97.48/32 any address 192.168.1.0/24 any
|
||||
{
|
||||
pfs_group 2;
|
||||
lifetime time 12 hour ;
|
||||
encryption_algorithm 3des, blowfish, des, rijndael ;
|
||||
authentication_algorithm hmac_sha1, hmac_md5 ;
|
||||
compression_algorithm deflate ;
|
||||
}
|
||||
|
||||
sainfo address 64.139.97.48/32 any address 206.124.146.176/32 any
|
||||
{
|
||||
pfs_group 2;
|
||||
lifetime time 12 hour ;
|
||||
encryption_algorithm 3des, blowfish, des, rijndael ;
|
||||
authentication_algorithm hmac_sha1, hmac_md5 ;
|
||||
compression_algorithm deflate ;
|
||||
}
|
||||
|
||||
sainfo address 192.168.3.8/32 any address 0.0.0.0/0 any
|
||||
{
|
||||
pfs_group 2;
|
||||
lifetime time 12 hour ;
|
||||
encryption_algorithm 3des, blowfish, des, rijndael ;
|
||||
authentication_algorithm hmac_sha1, hmac_md5 ;
|
||||
compression_algorithm deflate ;
|
||||
}</programlisting>
|
||||
</blockquote>
|
||||
</section>
|
||||
</section>
|
||||
|
||||
@ -15,7 +15,7 @@
|
||||
</author>
|
||||
</authorgroup>
|
||||
|
||||
<pubdate>2004-09-21</pubdate>
|
||||
<pubdate>2004-10-12</pubdate>
|
||||
|
||||
<copyright>
|
||||
<year>2001-2004</year>
|
||||
@ -60,7 +60,7 @@
|
||||
|
||||
<listitem>
|
||||
<para>The <ulink url="FAQ.htm">FAQ</ulink> has solutions to more than
|
||||
30 common problems.</para>
|
||||
40 common problems.</para>
|
||||
</listitem>
|
||||
|
||||
<listitem>
|
||||
|
||||
Loading…
Reference in New Issue
Block a user