MyArp

Microsoft ARP (Address Resolution Protocol) is a tool that can be accessed from the Windows built-in components to view and modify the ARP cache, as well as to find out the link layer address associated with a specific IPv4 address.

MyArp is a command-line tool similar to it. Although it cannot add or remove anything from the ARP cache, it collects and reveals information about devices connected to the computer unit.

After a fast setup operation that doesn't need special attention, MyArp gets launched in a console window and takes a while to refresh all device names at startup.

Once it's over, it displays a list with the local IP address of each device linked to the system, along with its name, type, description and physical address (MAC address).

Information is separately shown for active and inactive devices. The second group is reserved for past devices, telling you when they were last seen, thanks to the fact that the application can access their history. What's more, MyArp gives you the possibility to edit the device descriptions, in order to set user-friendly aliases.

Unfortunately, there is no option implemented for saving all these details to file. Instead, you can select and copy the text via the right-click menu. Commands are available for adding and updating database entries and descriptions, deleting database entries, as well as for preventing device pings.

Taking everything into account, MyArp turns out to be a practical and easy-to-use command-line application for accessing information about devices connected to the computer. Unsurprisingly, it left a small footprint on system resource consumption during our tests. Overall, the software program can be easily handled, even by users less experienced with networking utilities or command-line applications.