This document describes how to configure the basic configuration of the Firewall Services Module (FWSM) installed either in the Cisco 6500 Series Switches or Cisco 7600 Series Routers. This includes the configuration of the IP address, default routing, static and dynamic NATing, Access Control Lists (ACLs) statements in order to allow the desired traffic or block the unwanted traffic, application servers like Websense for the inspection of the internet traffic from the inside network, and the Webserver for the Internet users.

http://cisco.com/en/US/products/hw/modules/ps2706/products_configuration_example09186a00808b4d9f.shtml