Using NetDiscover to perform layer 2 discovery
NetDiscover is a tool that is used to identify network hosts through both active and passive ARP analysis. It was primarily written to be used on a wireless interface; however, it is functional in a switched environment as well. In this specific recipe, we will discuss how to use NetDiscover for both active and passive scanning.
Getting ready
To use NetDiscover to perform ARP discovery, you will need to have at least one system on the LAN that will respond to ARP requests. In the examples provided, a combination of Linux and Windows systems are used. For more information on setting up systems in a local lab environment, please refer to the Installing Metasploitable2 and Installing Windows Server recipes in Chapter 1, Getting Started.
How to do it…
A tool that was specifically designed to perform layer 2 discovery is NetDiscover. NetDiscover can be used to scan a range of IP addresses by passing the network range in CIDR notation as an argument...
