forked from extern/shorewall_code
197 lines
7.3 KiB
XML
197 lines
7.3 KiB
XML
<?xml version="1.0" encoding="UTF-8"?>
|
|
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
|
|
"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
|
|
<refentry>
|
|
<refmeta>
|
|
<refentrytitle>shorewall6-netmap</refentrytitle>
|
|
|
|
<manvolnum>5</manvolnum>
|
|
</refmeta>
|
|
|
|
<refnamediv>
|
|
<refname>netmap</refname>
|
|
|
|
<refpurpose>Shorewall6 NETMAP definition file</refpurpose>
|
|
</refnamediv>
|
|
|
|
<refsynopsisdiv>
|
|
<cmdsynopsis>
|
|
<command>/etc/shorewall/netmap</command>
|
|
</cmdsynopsis>
|
|
</refsynopsisdiv>
|
|
|
|
<refsect1>
|
|
<title>Description</title>
|
|
|
|
<para>This file is used to map addresses in one network to corresponding
|
|
addresses in a second network. It was added in Shorewall6 iin
|
|
4.4.23.3.</para>
|
|
|
|
<warning>
|
|
<para>To use this file, your kernel and ip6tables must have RAWPOST
|
|
table support included.</para>
|
|
</warning>
|
|
|
|
<para>The columns in the file are as follows (where the column name is
|
|
followed by a different name in parentheses, the different name is used in
|
|
the alternate specification syntax).</para>
|
|
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><emphasis role="bold">TYPE</emphasis> - <emphasis
|
|
role="bold">{DNAT</emphasis>|<emphasis
|
|
role="bold">SNAT}:{P|O|T}</emphasis></term>
|
|
|
|
<listitem>
|
|
<para>Must be DNAT or SNAT followed by :P, :O or :T to perform
|
|
<firstterm>stateless NAT</firstterm>. Stateless NAT requires
|
|
<firstterm>Rawpost Table support</firstterm> in your kernel and
|
|
iptables (see the output of <command>shorewall6 show
|
|
capabilities</command>).</para>
|
|
|
|
<para>If DNAT:P, traffic entering INTERFACE and addressed to NET1
|
|
has its destination address rewritten to the corresponding address
|
|
in NET2.</para>
|
|
|
|
<para>If SNAT:T, traffic leaving INTERFACE with a source address in
|
|
NET1 has it's source address rewritten to the corresponding address
|
|
in NET2.</para>
|
|
|
|
<para>If DNAT:O, traffic originating on the firewall and leaving via
|
|
INTERFACE and addressed to NET1 has its destination address
|
|
rewritten to the corresponding address in NET2.</para>
|
|
|
|
<para>If DNAT:P, traffic entering via INTERFACE and addressed to
|
|
NET1 has its destination address rewritten to the corresponding
|
|
address in NET2.</para>
|
|
|
|
<para>If SNAT:P, traffic entering via INTERFACE with a destination
|
|
address in NET1 has it's source address rewritten to the
|
|
corresponding address in NET2.</para>
|
|
|
|
<para>If SNAT:O, traffic originating on the firewall and leaving via
|
|
INTERFACE with a source address in NET1 has it's source address
|
|
rewritten to the corresponding address in NET2.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><emphasis role="bold">NET1</emphasis> -
|
|
<emphasis>network-address</emphasis></term>
|
|
|
|
<listitem>
|
|
<para>Network in CIDR format (e.g., 2001:470:b:227/64). Beginning in
|
|
Shorewall6 4.4.24, <ulink
|
|
url="shorewall6-exclusion.html">exclusion</ulink> is
|
|
supported.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><emphasis role="bold">INTERFACE</emphasis> -
|
|
<emphasis>interface</emphasis></term>
|
|
|
|
<listitem>
|
|
<para>The name of a network interface. The interface must be defined
|
|
in <ulink
|
|
url="shorewall6-interfaces.html">shorewall6-interfaces</ulink>(5).
|
|
Shorewall allows loose matches to wildcard entries in <ulink
|
|
url="shorewall6-interfaces.html">shorewall6-interfaces</ulink>(5).
|
|
For example, <filename class="devicefile">ppp0</filename> in this
|
|
file will match a <ulink
|
|
url="shorewall6-interfaces.html">shorewall6-interfaces</ulink>(8)
|
|
entry that defines <filename
|
|
class="devicefile">ppp+</filename>.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><emphasis role="bold">NET2</emphasis> -
|
|
<emphasis>network-address</emphasis></term>
|
|
|
|
<listitem>
|
|
<para>Network in CIDR format</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><emphasis role="bold">NET3</emphasis> -
|
|
<emphasis>network-address</emphasis></term>
|
|
|
|
<listitem>
|
|
<para>Optional - added in Shorewall 4.4.11. If specified, qualifies
|
|
INTERFACE. It specifies a SOURCE network for DNAT rules and a
|
|
DESTINATON network for SNAT rules.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><emphasis role="bold">PROTO (Optional</emphasis> -
|
|
<emphasis>protocol-number-or-name</emphasis></term>
|
|
|
|
<listitem>
|
|
<para>Only packets specifying this protocol will have their IP
|
|
header modified.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><emphasis role="bold">DEST PORT(S)</emphasis> (dport) -
|
|
<emphasis>port-number-or-name-list</emphasis></term>
|
|
|
|
<listitem>
|
|
<para>Destination Ports. An optional comma-separated list of Port
|
|
names (from services(5)), <emphasis>port number</emphasis>s or
|
|
<emphasis>port range</emphasis>s; if the protocol is <emphasis
|
|
role="bold">icmp</emphasis>, this column is interpreted as the
|
|
destination icmp-type(s). ICMP types may be specified as a numeric
|
|
type, a numberic type and code separated by a slash (e.g., 3/4), or
|
|
a typename. See <ulink
|
|
url="http://www.shorewall.net/configuration_file_basics.htm#ICMP">http://www.shorewall.net/configuration_file_basics.htm#ICMP</ulink>.</para>
|
|
|
|
<para>If the protocol is <emphasis role="bold">ipp2p</emphasis>,
|
|
this column is interpreted as an ipp2p option without the leading
|
|
"--" (example <emphasis role="bold">bit</emphasis> for bit-torrent).
|
|
If no PORT is given, <emphasis role="bold">ipp2p</emphasis> is
|
|
assumed.</para>
|
|
|
|
<para>An entry in this field requires that the PROTO column specify
|
|
icmp (1), tcp (6), udp (17), sctp (132) or udplite (136). Use '-' if
|
|
any of the following field is supplied.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><emphasis role="bold">SOURCE PORT(S)</emphasis> (sport) -
|
|
<emphasis>port-number-or-name-list</emphasis></term>
|
|
|
|
<listitem>
|
|
<para>Optional source port(s). If omitted, any source port is
|
|
acceptable. Specified as a comma-separated list of port names, port
|
|
numbers or port ranges.</para>
|
|
|
|
<para>An entry in this field requires that the PROTO column specify
|
|
tcp (6), udp (17), sctp (132) or udplite (136). Use '-' if any of
|
|
the following fields is supplied.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>FILES</title>
|
|
|
|
<para>/etc/shorewall/netmap</para>
|
|
</refsect1>
|
|
|
|
<refsect1>
|
|
<title>See ALSO</title>
|
|
|
|
<para><ulink
|
|
url="http://shorewall.net/netmap.html">http://shorewall.net/netmap.html</ulink></para>
|
|
|
|
<para><ulink
|
|
url="http://shorewall.net/configuration_file_basics.htm#Pairs">http://shorewall.net/configuration_file_basics.htm#Pairs</ulink></para>
|
|
</refsect1>
|
|
</refentry>
|