In this slide show we'll demonstrate how the
same policy rule set can be used in two different rules so that
complex rule can be reused. The rule created in this example is
specific to the iptables firewall, however the concept of using the
same rule set as a target in several branching rules applies to all
firewall platforms.
First, create new policy rule set, give it name "rate_limit" and
make it not "top ruleset" so that generated iptables rules go into the
chain "rate_limit".