Port-forwarding is typically used in scenarios where we have a single public IP address and several resources–in many cases on separate nodes–that must be made accessible to the internet. In such cases, it is useful to map traffic to different nodes based on the port on which the traffic entered the network–hence the term port-forwarding.
Port-forwarding is rarely seen in corporate networks (corporations are more likely to be able to afford separate IP addresses for different services), but are commonly seen in home and SOHO networks. Fortunately, pfSense is designed to work with a variety of networks and supports port-forwarding. However, we must take into account the following:
- Port-forwarding in pfSense is always applied ...