Fixed wrong device entity names when no dns was returned

Author: cyberjunky

CHANGELOG.md

@@ -1,6 +1,6 @@
 ## Changelog
 
-### 2.0.9
+### 2.1.3
 
 - Added **Enable Found Devices** option to enable/disable all device tracker entities
 - Added **Track New Devices** option to control auto-creation of entities for newly discovered devices

custom_components/arpscan_tracker/manifest.json

@@ -13,5 +13,5 @@
     "scapy>=2.5.0",
     "ouilookup>=0.2.4"
   ],
-  "version": "2.1.3"
+  "version": "2.1.4"
 }

custom_components/arpscan_tracker/scanner.py

@@ -193,6 +193,11 @@ def _lookup_hostname(self, ip: str) -> str | None:
                     return None
 
                 return short_name
+
+            # Reject hostnames that are just numbers (partial IPs like "192")
+            if hostname.isdigit():
+                return None
+
             return hostname
         except (socket.herror, socket.gaierror, OSError):
             # No reverse DNS entry