<term><varname>FooOverUDP=</varname></term>
<listitem>
<para>Takes a boolean. Specifies whether <varname>FooOverUDP=</varname> tunnel is to be configured.
- Defaults to false. For more detail information see
+ Defaults to false. This takes effects only for IPIP, SIT, GRE, and GRETAP tunnels.
+ For more detail information see
<ulink url="https://lwn.net/Articles/614348">Foo over UDP</ulink></para>
</listitem>
</varlistentry>
<term><varname>FOUDestinationPort=</varname></term>
<listitem>
<para>This setting specifies the UDP destination port for encapsulation.
- This field is mandatory and is not set by default.</para>
+ This field is mandatory when <varname>FooOverUDP=yes</varname>, and is not set by default.</para>
</listitem>
</varlistentry>
<varlistentry>
<varlistentry>
<term><varname>Encapsulation=</varname></term>
<listitem>
- <para>Accepts the same key as <literal>[FooOverUDP]</literal></para>
+ <para>Accepts the same key as in the <literal>[FooOverUDP]</literal> section.</para>
</listitem>
</varlistentry>
<varlistentry>
following keys:</para>
<variablelist class='network-directives'>
- <varlistentry>
- <term><varname>Protocol=</varname></term>
- <listitem>
- <para>The <varname>Protocol=</varname> specifies the protocol number of the
- packets arriving at the UDP port. This field is mandatory and is not set by default. Valid range is 1-255.</para>
- </listitem>
- </varlistentry>
<varlistentry>
<term><varname>Encapsulation=</varname></term>
<listitem>
for delivery to the real destination. This option is mandatory.</para>
</listitem>
</varlistentry>
- </variablelist>
+ <varlistentry>
+ <term><varname>Protocol=</varname></term>
+ <listitem>
+ <para>The <varname>Protocol=</varname> specifies the protocol number of the packets arriving
+ at the UDP port. When <varname>Encapsulation=FooOverUDP</varname>, this field is mandatory
+ and is not set by default. Takes an IP protocol name such as <literal>gre</literal> or
+ <literal>ipip</literal>, or an integer within the range 1-255. When
+ <varname>Encapsulation=GenericUDPEncapsulation</varname>, this must not be specified.</para>
+ </listitem>
+ </varlistentry>
+ </variablelist>
</refsect1>
<refsect1>
<title>[Peer] Section Options</title>