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Configure pfSense Firewall

The following article describes configuring pfSense firewall. The SIP device should be assigned a fixed IP either via DHCP or by configuring it with a static IP. 

NOTE: This information applies to pfSense versions 1.2.3 and 2.0.1.

To configure pfSense firewall:

  1. In the pfSense UI, click Firewall, click NAT, and then click the Outbound tab.
  2. Click the Manual Outbound NAT rule generation radio button, and then click Save.

In the Mappings section, create a new rule at the start of the list using the following minimum required values: 

Rules are processed in order from topmost to bottommost; by adding this as the first rule, it will be procssed first. 

NOTE: For more information static NAT ports, see the pfSense web site.

Example outbound NAT settings 

  • Interface: [relevant external interface]
  • Source: [IP of the SIP device]
  • Static PortYES
  1. Click Save.
  2. Repeat the steps above for each rule you want to add, and organize those rules in the order by which you want them processed.

NOTE: For newer versions of pfSense please see the following image.


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