diff --git a/napalm_opnsense/opnsense.py b/napalm_opnsense/opnsense.py
index 528ce76..0d8e941 100644
--- a/napalm_opnsense/opnsense.py
+++ b/napalm_opnsense/opnsense.py
@@ -46,7 +46,7 @@ logger = logging.getLogger(__name__)
 import requests
 from requests.exceptions import RequestException
 
-from napalm_device_types import FirewallDriver
+from napalm_device_types import FingerprintRule, FirewallDriver
 from napalm.base.exceptions import ConnectionException, ConnectionClosedException, MergeConfigException
 
 
@@ -54,6 +54,16 @@ class OPNsenseDriver(FirewallDriver):
     """NAPALM driver for OPNsense (read-only, REST API)."""
 
     VENDOR = "OPNsense"
+    DRIVER_NAME = "opnsense"
+    SNMP_FINGERPRINT = [
+        FingerprintRule("opnsense", weight=8.0, mandatory=True),
+    ]
+    SSH_FINGERPRINT = [
+        FingerprintRule("freebsd", weight=7.0),
+    ]
+    HTTP_FINGERPRINT = [
+        FingerprintRule("opnsense", weight=8.0, mandatory=True),
+    ]
 
     def __init__(
         self,