How to Get Your IP Address from a Mac Address on Linux

When setting up a home network, it's essential to know how many devices are connected to your local network. This information can be crucial for troubleshooting and maintaining your network. In this article, we'll show you how to get an IP address from a MAC (Media Access Control) address on Linux.

Understanding Your Network Settings

Before we dive into the process of getting an IP address from a MAC address, it's essential to understand your network settings. A normal home network typically has a maximum of 254 devices possible, but in reality, you'll likely see only 3-10 devices connected at any given time.

To get started, find your very own IP address. This is usually done by typing the following command in the Linux command line:

`sudo nmap -sn 192.168.0.1/24`

Replace `192.168.0.1` with the IP address of your gateway (router), and `24` with the correct number behind the slash if your subnet mask is 255.255.255.0.

What You'll See

This command will install Nmap on your computer, a fantastic program for running diagnostics on your device and network. When you run this command, you should see a list of devices connected to your local network, along with their IP addresses and MAC addresses.

Here's what it might look like:

`Starting Nmap 7.80 ( https://nmap.org ) at 2021-07-22 14:30 EDT`

`Nmap scan report for 192.168.0.104 (192.168.0.104)`

`IP Address: 192.168.0.104 (255.255.255.0) - Local IP address on the internal network and subnet mask`

Getting Your IP Address from a MAC Address

Now that you have this information in hand, you can use it to get an IP address from a MAC address. Simply type the following command:

`nmap -sP 192.168.0.1/24 | grep -i 'mac'`

This will show you all the devices connected to your local network, along with their MAC addresses.

In this article, we've shown you how to get an IP address from a MAC address on Linux. By using Nmap and following these simple steps, you can easily identify the devices connected to your local network and troubleshoot any issues that may arise.

Get ip from mac address linux