I'd just like to see who is connecting to my computers Access Point wifi.
I'm sharing Internet from Ethernet to wifi with a password, etc.
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There is a GUI solution on Apple Store--it is FREE !
Who Is On My WiFi By IO3O LLC
Who's On My Wifi is an easy way to Detect Unknown Devices on your network.
Whether it's someone using your wired or wireless network, Who's On My Wifi's optional automated background scanning will find all devices on the network, let you tag them, and notify you if any new unknown devices are found.