A simple subnet scan

We will perform simple scan of a subnet:

Perform a simple subnet scan of your lab network, 192.168.56.0/24. Substitute the subnet you created for your lab network in the section installing Kali on VirtualBox :

nmap 192.168.56.0/24 

This command will scan 1000 popular ports of all targets in a specific subnet range. Examine the output. In the case of our Metasploitable machine (192.168.56.102), we will see the following output. From this output, we can identify the IP address as well as the number of open ports: