Introduction

Nowadays, we have more and more device connected inside our house. On Linux OS there an easy command to list them all. It is named arp-scan. If you have Ubuntu, to install it, simply execute the following command :

Usage

If your machine is connected by wire :

If your machine is connected by wifi :

Possible errors

you might not have eth0 or wlan0 defined and having the “ioctl: No such device” message. To find your network device :

Names are listed on the left side . “lo” is not to be used as it is the local host, mainly used for test purpose.