Network Security with pfSense

Firewall rules in pfSense

Now let's walk through the process of creating some firewall rules for the LAN1 internal network segment:

1. Let's head back to the pfSense Dashboard. Click Firewall, and click Rules.

In the following screenshot, you can see there is only one rule implemented for LAN1:

2. To add a new rule, you could use the Add buttons at the bottom. Notice that there are two Add buttons available here. The first one adds a rule to the top of the list while the second Add icon adds a rule to the end of the list. As we mentioned earlier, pfSense evaluates firewall rules in sequential order. pfSense starts to evaluate each firewall rule ...