OPNsense Integration Guide

OPNsense must be configured to send logs via Syslog to the Taegis™ XDR Collector. Logs are filtered and correlated in real-time for various security event observations.

Follow the instructions below to configure logging and enable monitoring by Secureworks® Taegis™ XDR.

Connectivity Requirements

Source	Destination	Port/Protocol
OPNsense Firewall	XDR Collector (mgmt IP)	UDP/514

Data Provided from Integration

	Normalized Data	Out-of-the-Box Detections	Vendor-Specific Detections
OPNsense Firewall		Netflow

Note

XDR detectors are not guaranteed to be triggered, even if a data source's logs are normalized to a schema associated with a given detector. However, you can create Custom Detection Rules to generate detections based on normalized data from a data source.

Configuration Instructions

Within the OPNsense console, navigate to System > Settings > Logging / targets.

1. Select Add and create a new destination entry as follows:

   • Enabled — Checked / selected
   • Transport — UDP(4)
   • Applications — filter (filterlog)
   • Levels — info, notice, warn, error, critical, alert, emergency
   • Facilities — Nothing selected
   • Hostname — The IP address of the XDR Collector
   • Port — 514
   • rfc5424 — Unchecked / unselected
   • Description — FilterLog

   

   Destination for FilterLog

2. Select Save to save the destination entry.

3. Select Apply to apply the logging configuration.

   Your OPNsense appliance is now logging to XDR.

   Note

   OPNsense filterlog events are normalized as XDR Sensor Type pfSense Firewall.