Configuring a firewall can be an intimidating project, but breaking down the work into simpler tasks can make the work much more manageable. The following guidance will help you understand the major steps involved in firewall configuration. There are many suitable firewall models that can be used to protect your network. You can consult a HIPAA security expert or PCI security expert to learn more about your options. The following steps are critical, regardless of the firewall model you choose. This guide assumes that you are using a business grade firewall that supports multiple internal networks (or zones) and performs stateful packet inspection.