Get Your IP Address from a MAC Address on Linux

When it comes to managing your local network, knowing the IP address and MAC address of each device can be crucial. In this article, we will explore how to get your own IP address and the IP addresses of other devices connected to your network using their MAC addresses.

First, you need to know that the settings for a typical home network allow for a maximum of 254 devices. However, in reality, most home networks have only 3-10 devices connected at any given time. To get an overview of all devices connected to your local network, you can use the Nmap command.

Using Nmap to Scan Your Network

To install Nmap on your Linux computer and scan your network, follow these steps:

1. Open the terminal on your Linux machine.

2. Type `sudo apt-get install nmap` (or a similar command depending on your distro) to install Nmap.

3. Once installed, type `nmap -sn 192.168.0.1/24` and press Enter.

This command will show you all the devices connected to your local network. 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.

Finding Your Own IP Address

Now that you have a list of devices on your network, it's time to find your own IP address. To do this, follow these steps:

1. Look for your local IP address and subnet mask in the Nmap output.

2. Typically, your IP address will look something like `192.168.0.104` and your subnet mask will look like `255.255.255.0`.

Finding MAC Addresses of Other Devices

To find the MAC addresses of other devices on your network, you can use a similar Nmap command:

1. Type `nmap -sP 192.168.0.1/24` and press Enter.

2. This will show you a list of all devices connected to your network, along with their IP addresses and MAC addresses.

With these commands, you should now have a good understanding of how to get your own IP address from your MAC address on Linux, as well as the IP addresses and MAC addresses of other devices on your local network.

Get ip from mac address linux