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Document port masquerading

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Signed-off-by: Tom Eastep <teastep@shorewall.net>
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Tom Eastep 2018-01-19 08:55:56 -08:00
parent 5d7dcc3122
commit 4e6949f996
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1 changed files with 11 additions and 7 deletions
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18
Shorewall/manpages/shorewall-snat.xml
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@ -97,7 +97,7 @@
<varlistentry>
<term><emphasis
role="bold">MASQUERADE[+]</emphasis>[([<replaceable>lowport</replaceable>-<replaceable>highport</replaceable>][<option>random</option>])][:<replaceable>level</replaceable>]</term>
role="bold">MASQUERADE[+]</emphasis>[([<replaceable>lowport</replaceable>[-<replaceable>highport</replaceable>]][<option>random</option>])][:<replaceable>level</replaceable>]</term>
<listitem>
<para>Causes matching outgoing packages to have their source
@ -105,11 +105,12 @@
specified in the DEST column. if
<replaceable>lowport</replaceable>-<replaceable>highport</replaceable>
is given, that port range will be used to assign a source
port. If option <option>random</option> is used then port
mapping will be randomized. MASQUERADE should only be used
when the DEST interface has a dynamic IP address. Otherwise,
SNAT should be used and should specify the interface's static
address.</para>
port. If only <replaceable>lowport</replaceable> is given,
that port will be assigned, if possible. If option
<option>random</option> is used then port mapping will be
randomized. MASQUERADE should only be used when the DEST
interface has a dynamic IP address. Otherwise, SNAT should be
used and should specify the interface's static address.</para>
</listitem>
</varlistentry>
@ -156,7 +157,7 @@
<varlistentry>
<term><emphasis
role="bold">SNAT[+]</emphasis>([<emphasis>address-or-address-range</emphasis>][:<emphasis>lowport</emphasis><emphasis
role="bold">-</emphasis><emphasis>highport</emphasis>][<emphasis
role="bold">[-</emphasis><emphasis>highport</emphasis>]][<emphasis
role="bold">:random</emphasis>][:<option>persistent</option>]|<emphasis
role="bold">detect</emphasis>)[:<replaceable>level</replaceable>]</term>
@ -209,6 +210,9 @@
<programlisting> 192.0.2.4:5000-6000
:4000-5000</programlisting>
<para>You may also specify a single port number, which will be
assigned to the outgoing connection, if possible.</para>
</listitem>
</varlistentry>