macOS: How to search for network devices with the help of the terminal

There is a terminal command called arp that allows you to find network devices your local area network (LAN). It will display IP addresses and MAC addresses, and is useful for troubleshooting and other situatis.

Finding Network Devices with ARP

ARP, or address resoluti protocol, is a communicati protocol used to explore the link-layer address associated with a network-layer address. Translati: If you need the IP or MAC address for a device the same network as you, use ARP.

[ 9 Alternatives for the Apple Mac Terminal App ]

First, we will need to open Terminal. You can do this by searching Spotlight, using Siri, or going to your Applicatis folder. Then type this command:

  arp -a 

This will give you a list of devices, as shown below:

[19659004] Devices include anything your network, such as Macs, PCs, iPhones, iPads, and routers. It shows both the IP address of the local network and the MAC address (mine are blackened in screen capture to keep them safe and hidden). You can match the MAC address to …

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