How To Find The IP Address Of Your Server Using arp-scan

To find the IP address of your Raspberry Pi on your local network using arp-scan on your MacBook, follow these steps:

Step 1: Install arp-scan

arp-scan is not installed by default on macOS, but you can install it via Homebrew. If you don't have Homebrew installed yet, follow the instructions here.

brew install arp-scan

Step 2: Find Your Network Interface

To see which network interface you're using (like en0 or en1), run:

ifconfig

Look for an interface with an IP address in the range of your local network (e.g., 192.168.x.x)

Step 3: Use arp-scan

Run arp-scan on the appropriate network interface. If your network interface is en0 and your network IP range is 192.168.1.0/24

the command would look like this:

sudo arp-scan --interface=en0 192.168.1.0/24

• Replace en0 with the correct network interface.
• Adjust the IP range to match your network if necessary.

Step 4: Identify the Raspberry Pi

Look for a device listed as Raspberry Pi in the output. It should show the IP address, MAC address, and vendor.