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More Martian advice
git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@5400 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb
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@ -648,6 +648,19 @@ Feb 9 17:23:45 gw.ilinx kernel: ll header: 00:a0:24:2a:1f:72:00:13:5f:07:97:05:
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application to use). See <link linkend="Local">below</link>.</para>
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application to use). See <link linkend="Local">below</link>.</para>
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</listitem>
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</listitem>
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</orderedlist>
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</orderedlist>
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<para>If all else fails, remove the <emphasis
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role="bold">routefilter</emphasis> option from your external interfaces.
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If you do this, you may wish to add rules to log and drop packets from
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the Internet that have source addresses in your local networks. For
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example, if the local LAN in the above diagram is 192.168.1.0/24, then
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you would add this rule: </para>
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<programlisting>#ACTION SOURCE DEST
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DROP:info net:192.168.1.0/24 all</programlisting>
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<para>Be sure the above rule is added before any other rules with
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<emphasis>net</emphasis> in the SOURCE column.</para>
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</section>
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</section>
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<section>
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<section>
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@ -303,14 +303,11 @@ SNAT 192.168.1.0/24 vpn 10.10.10.0/24 #RULE 2B</programlist
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<section>
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<section>
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<title>Can't I do this with one router? Why do I need two?</title>
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<title>Can't I do this with one router? Why do I need two?</title>
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<para>The single router would have to be able to route to two different
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<para>I wrote this article before Shorewall included <ulink
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192.168.1.0/24 networks. In Netfilter parlance, that would mean that the
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url="MultiISP.html">multiple provider support</ulink>. You should be able
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destination IP address would have to be rewritten after the packet had
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to accomplish the same thing with just one router through careful use of
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been routed; Netfilter doesn't have that capability.</para>
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/etc/shorewall/netmap and <ulink url="MultiISP.html">multiple
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providers</ulink>. If you try it and get it working, please contribute an
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<para>Note that if you do it with two routers, then adding a third is
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update to this article.</para>
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easy. There's no reason why you can't have yet another network that is
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192.168.1.0/24 on the inside, but you can allocated it 10.10.12.0/24 for
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everybody else.</para>
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</section>
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</section>
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</article>
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</article>
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