I think I have the Nut service on OPNsense setup correctly now. In 'Services - Nut - Configuration - General Settings - General Nut Settings', I have 'Enabled'; 'Service Mode' = standalone, 'Name' = ups; 'Listen Address' = [localhost] & [192.168.15.1] (my OPNsense IP)'.
For 'Services - Nut - Configuration - General Settings - Nut Account Settings' and 'Services - Nut - Configuration - UPS Type', they're set as in my original post.
I now see the correct data in the Nut dashboard widget and can connect here from both my TrueNAS Core servers using 'upsc ups@192.168.15.1'. I can also use 'upsc' to see the info from those TN servers.
Next step is to set up my RPi and Win 11 PC as clients. And then do a shutdown test.
For 'Services - Nut - Configuration - General Settings - Nut Account Settings' and 'Services - Nut - Configuration - UPS Type', they're set as in my original post.
I now see the correct data in the Nut dashboard widget and can connect here from both my TrueNAS Core servers using 'upsc ups@192.168.15.1'. I can also use 'upsc' to see the info from those TN servers.
Next step is to set up my RPi and Win 11 PC as clients. And then do a shutdown test.