+=head2 Plugin C<interface>
+
+=over 4
+
+=item B<Interface> I<Interface>
+
+Select this interface. By default these interfaces will then be collected. For
+a more detailed description see B<IgnoreSelected> below.
+
+=item B<IgnoreSelected> I<true>|I<false>
+
+If no configuration if given, the B<traffic>-plugin will collect data from
+all interfaces. This may not be practical, especially for loopback- and
+similar interfaces. Thus, you can use the B<Interface>-option to pick the
+interfaces you're interested in. Sometimes, however, it's easier/prefered
+to collect all interfaces I<except> a few ones. This option enables you to
+do that: By setting B<IgnoreSelected> to I<true> the effect of
+B<Interface> is inversed: All selected interfaces are ignored and all
+other interfaces are collected.
+
+=back
+
+=head2 Plugin C<iptables>
+
+=over 4
+
+=item B<Chain> I<Table> I<Chain> [I<Comment|Number> [I<Name>]]
+
+Select the rules to count. If only I<Table> and I<Chain> are given, this plugin
+will collect the counters of all rules which have a comment-match. The comment
+is then used as type-instance.
+
+If I<Comment> or I<Number> is given, only the rule with the matching comment or
+the I<n>th rule will be collected. Again, the comment (or the number) will be
+used as the type-instance.
+
+If I<Name> is supplied, it will be used as the type-instance instead of the
+comment or the number.
+
+=back
+