This is my config
- platform: nmap_tracker hosts: - 192.168.x.xxx-xxx interval_seconds: 45 scan_options: " -PR -n --privileged -F --host-timeout 5s"
It is not clear to me if by adding scan_options you are replacing the default scan_options or adding to them.
With Debug logging I get:
2018-12-11 18:29:20 INFO (SyncWorker_12) [homeassistant.components.device_tracker.nmap_tracker] Scanning..., 2018-12-11 18:29:20 INFO (SyncWorker_12) [homeassistant.components.device_tracker.nmap_tracker] nmap scan successful, 2018-12-11 18:29:20 DEBUG (SyncWorker_12) [homeassistant.components.device_tracker.nmap_tracker] Nmap last results []
Which looks like an empty array to me.
When I comment out the scan_options then I get the following in the log file, which I interpret as the command is not running under sudo:
2018-12-11 18:39:41 INFO (SyncWorker_11) [homeassistant.components.device_tracker.nmap_tracker] No MAC address found for 192.168.1.xxx, 2018-12-11 18:39:41 INFO (SyncWorker_11) [homeassistant.components.device_tracker.nmap_tracker] No MAC address found for 192.168.1.xxx, 2018-12-11 18:39:41 INFO (SyncWorker_11) [homeassistant.components.device_tracker.nmap_tracker] nmap scan successful, 2018-12-11 18:39:41 DEBUG (SyncWorker_11) [homeassistant.components.device_tracker.nmap_tracker] Nmap last results []