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https://gitlab.com/shorewall/code.git
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126 lines
4.0 KiB
XML
126 lines
4.0 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
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<refentry>
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<refmeta>
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<refentrytitle>shorewall-netmap</refentrytitle>
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<manvolnum>5</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>netmap</refname>
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<refpurpose>Shorewall NETMAP definition file</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>/etc/shorewall/netmap</command>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>This file is used to map addresses in one network to corresponding
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addresses in a second network.</para>
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<warning>
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<para>To use this file, your kernel and iptables must have NETMAP
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support included.</para>
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</warning>
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<para>The columns in the file are as follows.</para>
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<variablelist>
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<varlistentry>
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<term><emphasis role="bold">TYPE</emphasis> - <emphasis
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role="bold">DNAT</emphasis>|<emphasis
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role="bold">SNAT</emphasis></term>
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<listitem>
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<para>Must be DNAT or SNAT.</para>
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<para>If DNAT, traffic entering INTERFACE and addressed to NET1 has
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its destination address rewritten to the corresponding address in
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NET2.</para>
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<para>If SNAT, traffic leaving INTERFACE with a source address in
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NET1 has it's source address rewritten to the corresponding address
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in NET2.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">NET1</emphasis> -
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<emphasis>network-address</emphasis></term>
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<listitem>
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<para>Network in CIDR format (e.g., 192.168.1.0/24).</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">INTERFACE</emphasis> -
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<emphasis>interface</emphasis></term>
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<listitem>
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<para>The name of a network interface. The interface must be defined
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in <ulink
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url="shorewall-interfaces.html">shorewall-interfaces</ulink>(5).
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Shorewall allows loose matches to wildcard entries in <ulink
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url="shorewall-interfaces.html">shorewall-interfaces</ulink>(5). For
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example, <filename class="devicefile">ppp0</filename> in this file
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will match a <ulink
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url="shorewall-interfaces.html">shorewall-interfaces</ulink>(8)
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entry that defines <filename
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class="devicefile">ppp+</filename>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">NET2</emphasis> -
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<emphasis>network-address</emphasis></term>
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<listitem>
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<para>Network in CIDR format</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><emphasis role="bold">NET3 (Optional)</emphasis> -
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<emphasis>network-address</emphasis></term>
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<listitem>
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<para>If specified, qualifies INTERFACE. It specifies a SOURCE
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network for DNAT rules and a DESTINATON network for SNAT
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rules.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>FILES</title>
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<para>/etc/shorewall/netmap</para>
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</refsect1>
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<refsect1>
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<title>See ALSO</title>
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<para><ulink
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url="http://shorewall.net/netmap.html">http://shorewall.net/netmap.html</ulink></para>
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<para>shorewall(8), shorewall-accounting(5), shorewall-actions(5),
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shorewall-blacklist(5), shorewall-hosts(5), shorewall-interfaces(5),
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shorewall-ipsec(5), shorewall-maclist(5), shorewall-masq(5),
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shorewall-nat(5), shorewall-params(5), shorewall-policy(5),
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shorewall-providers(5), shorewall-proxyarp(5), shorewall-route_rules(5),
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shorewall-routestopped(5), shorewall-rules(5), shorewall.conf(5),
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shorewall-tcclasses(5), shorewall-tcdevices(5), shorewall-tcrules(5),
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shorewall-tos(5), shorewall-tunnels(5), shorewall-zones(5)</para>
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</refsect1>
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</refentry>
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