For community edition (CE) installations or self-built machines running pfSense Plus, the displayed "serial number" is typically a generated identifier. On generic hardware, the system displays the or an SMBIOS-derived value—often a generic string rather than a manufacturer-specific identifier. This design facilitates users seeking support by providing a consistent reference point even when official hardware is not in use.
The easiest way to find your serial number is directly through the web browser interface. This method works remotely without needing physical access to the device. Log into your pfSense . Navigate to the Dashboard (Status > Dashboard). Locate the System Information widget. Look for the Netgate Device ID or Serial Number entry. pfsense serial number
Both official Netgate hardware and DIY white-box installations. The easiest way to find your serial number
In pfSense, a key feature of the is its role in Netgate hardware identification , allowing the Netgate Support Team to quickly verify a device's order history, warranty status, and eligible support levels. Navigate to the Dashboard (Status > Dashboard)
Connect to the console (Serial or SSH) and select option 12 (Developer Shell) or 8 (Shell). Run the following command to query the hardware BIOS:
For larger deployments, consider implementing automated inventory collection using the command-line methods described earlier. The ability to remotely query kenv smbios.system.serial or sysctl dev.netgate.model across multiple devices streamlines asset management and compliance tracking.