Is there a way to be notified when you have a new MAC address in the arp cache? I have a remote router, usually a 1720 or a small 2600 router with no managed switches. If I had a managed switch, I would look for a link up trap. I need to know when a new device connects to the network.
To the best of my knowledge it's not possible to see a new device comes up , unless you have a manageable switch. Otherwise you have to manually login in to your computer and see the Arp cache.
