Detect a device's presence on the network

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PascalMontreal's picture
Detect a device's presence on the network

I have a WNT3500L running Tomato Firmware v1.28.7500 MIPSR2Toastman-RT K26 USB Ext.

What I'd like to do is detect the presence (or absence) of my iPhone on the wireless network. I've assigned a fixed IP to my iPhone. I've seen entries in the router's logs when my iPhone connects to the wireless but there was no entry for when it disconnects.

Is there a way to log this event?

Or maybe there is a better way of doing this, like a cron job that could check the device's presence on the network? 


Thanks for any help and suggestions.