This section will determine which pfSense deployment scenarios is most applicable by analysing our network diagram.
In this section, we will make use of our network diagram to understand how and where pfSense will fit into our environment. As an example, we will use a relatively typical small Office/Home Office setup. We begin by looking at our network diagram:
In this small office scenario, the firewall that we have diagrammed clearly meets the definition of a perimeter firewall, which is the most common of pfSense deployments.
A perimeter firewall becomes the gatekeeper of all traffic flowing between interfaces. We will define firewall rules based on how we want that traffic to flow. A few common rules that most networks enforce are:
- Allow all from LAN to WAN: The LAN should have outbound access to the WAN so its users can access the internet...
