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Source code changes of the file "manpages/shorewall-nat.xml" between
shorewall-docs-xml-5.2.3.6.tar.bz2 and shorewall-docs-xml-5.2.6.tar.bz2

About: Shorewall (The Shoreline Firewall) is an iptables based firewall (documentation; XML)

shorewall-nat.xml  (shorewall-docs-xml-5.2.3.6.tar.bz2):shorewall-nat.xml  (shorewall-docs-xml-5.2.6.tar.bz2)
skipping to change at line 34 skipping to change at line 34
<refsect1> <refsect1>
<title>Description</title> <title>Description</title>
<para>This file is used to define one-to-one Network Address Translation <para>This file is used to define one-to-one Network Address Translation
(NAT).</para> (NAT).</para>
<warning> <warning>
<para>If all you want to do is simple port forwarding, do NOT use this <para>If all you want to do is simple port forwarding, do NOT use this
file. See <ulink file. See <ulink
url="/FAQ.htm#faq1">http://www.shorewall.net/FAQ.htm#faq1</ulink>. Also, url="../FAQ.htm#faq1">https://shorewall.org/FAQ.htm#faq1</ulink>. Also,
in many cases, Proxy ARP (<ulink in many cases, Proxy ARP (<ulink
url="/manpages/shorewall-proxyarp.html">shorewall-proxyarp</ulink>(5)) url="shorewall-proxyarp.html">shorewall-proxyarp</ulink>(5))
or Proxy-NDP(<ulink or Proxy-NDP(<ulink
url="/manpages/shorewall-proxyndp.html">shorewall6-proxyndp</ulink>(5)) url="shorewall-proxyndp.html">shorewall6-proxyndp</ulink>(5))
is a better solution that one-to-one NAT.</para> is a better solution that one-to-one NAT.</para>
</warning> </warning>
<para>The columns in the file are as follows (where the column name is <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 followed by a different name in parentheses, the different name is used in
the alternate specification syntax).</para> the alternate specification syntax).</para>
<variablelist> <variablelist>
<varlistentry> <varlistentry>
<term><emphasis role="bold">EXTERNAL</emphasis> - <term><emphasis role="bold">EXTERNAL</emphasis> -
skipping to change at line 75 skipping to change at line 75
<varlistentry> <varlistentry>
<term><emphasis role="bold">INTERFACE</emphasis> - <term><emphasis role="bold">INTERFACE</emphasis> -
<emphasis>interfacelist</emphasis>[<emphasis <emphasis>interfacelist</emphasis>[<emphasis
role="bold">:</emphasis>[<emphasis>digit</emphasis>]]</term> role="bold">:</emphasis>[<emphasis>digit</emphasis>]]</term>
<listitem> <listitem>
<para>Interfaces that have the <emphasis <para>Interfaces that have the <emphasis
role="bold">EXTERNAL</emphasis> address. If ADD_IP_ALIASES=Yes in role="bold">EXTERNAL</emphasis> address. If ADD_IP_ALIASES=Yes in
<ulink <ulink
url="/manpages/shorewall.conf.html">shorewall.conf</ulink>(5), url="shorewall.conf.html">shorewall.conf</ulink>(5),
Shorewall will automatically add the EXTERNAL address to this Shorewall will automatically add the EXTERNAL address to this
interface. Also if ADD_IP_ALIASES=Yes, you may follow the interface interface. Also if ADD_IP_ALIASES=Yes, you may follow the interface
name with ":" and a <emphasis>digit</emphasis> to indicate that you name with ":" and a <emphasis>digit</emphasis> to indicate that you
want Shorewall to add the alias with this name (e.g., "eth0:0"). want Shorewall to add the alias with this name (e.g., "eth0:0").
That allows you to see the alias with ifconfig. <emphasis That allows you to see the alias with ifconfig. <emphasis
role="bold">That is the only thing that this name is good for -- you role="bold">That is the only thing that this name is good for -- you
cannot use it anywhere else in your Shorewall configuration. cannot use it anywhere else in your Shorewall configuration.
</emphasis></para> </emphasis></para>
<para>Each interface must match an entry in <ulink <para>Each interface must match an entry in <ulink
url="/manpages/shorewall-interfaces.html">shorewall-interfaces</ulink> (5). url="shorewall-interfaces.html">shorewall-interfaces</ulink>(5).
Shorewall allows loose matches to wildcard entries in <ulink Shorewall allows loose matches to wildcard entries in <ulink
url="/manpages/shorewall-interfaces.html">shorewall-interfaces</ulink> (5). url="shorewall-interfaces.html">shorewall-interfaces</ulink>(5).
For example, <filename class="devicefile">ppp0</filename> in this For example, <filename class="devicefile">ppp0</filename> in this
file will match a <ulink file will match a <ulink
url="/manpages/shorewall-interfaces.html">shorewall-interfaces</ulink> (5) url="shorewall-interfaces.html">shorewall-interfaces</ulink>(5)
entry that defines <filename entry that defines <filename
class="devicefile">ppp+</filename>.</para> class="devicefile">ppp+</filename>.</para>
<para>If you want to override ADD_IP_ALIASES=Yes for a particular <para>If you want to override ADD_IP_ALIASES=Yes for a particular
entry, follow the interface name with ":" and no digit (e.g., entry, follow the interface name with ":" and no digit (e.g.,
"eth0:").</para> "eth0:").</para>
</listitem> </listitem>
</varlistentry> </varlistentry>
<varlistentry> <varlistentry>
skipping to change at line 204 skipping to change at line 204
<emphasis role="bold">smc $FW CONTINUE</emphasis> <emphasis role="bold">smc $FW CONTINUE</emphasis>
loc net ACCEPT loc net ACCEPT
net all DROP info net all DROP info
# THE FOLLOWING POLICY MUST BE LAST # THE FOLLOWING POLICY MUST BE LAST
all all REJECT info all all REJECT info
</programlisting> </programlisting>
</listitem> </listitem>
<listitem> <listitem>
<para>Set IMPLICIT_CONTINUE=Yes in <ulink <para>Set IMPLICIT_CONTINUE=Yes in <ulink
url="/manpages/shorewall.conf.html">shorewall.conf(5)</ulink>.</para> url="shorewall.conf.html">shorewall.conf(5)</ulink>.</para>
</listitem> </listitem>
</orderedlist> </orderedlist>
</refsect1> </refsect1>
<refsect1> <refsect1>
<title>FILES</title> <title>FILES</title>
<para>/etc/shorewall/nat</para> <para>/etc/shorewall/nat</para>
<para>/etc/shorewall6/nat</para> <para>/etc/shorewall6/nat</para>
</refsect1> </refsect1>
<refsect1> <refsect1>
<title>See ALSO</title> <title>See ALSO</title>
<para><ulink <para><ulink
url="/NAT.htm">http://www.shorewall.net/NAT.htm</ulink></para> url="../NAT.htm">https://shorewall.org/NAT.htm</ulink></para>
<para><ulink <para><ulink
url="/configuration_file_basics.htm#Pairs">http://www.shorewall.net/configur ation_file_basics.htm#Pairs</ulink></para> url="../configuration_file_basics.htm#Pairs">https://shorewall.org/configura tion_file_basics.htm#Pairs</ulink></para>
<para>shorewall(8)</para> <para>shorewall(8)</para>
</refsect1> </refsect1>
</refentry> </refentry>
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