While using arp-scan we need root privileges. This will scan whole local network with arp packets. Most basic usage of arp-scan is scanning local network with a single options named -localnet or -l .
$ arp-scan -h Help Syntax Usage: arp-scan Scan Local Network We can print help information with the -h option. $ sudo apt install arp-scan -y Install Help We can install arp-scan tool with the following command. Arp-scan is a tool specifically designed to scan network with layer 2 or mac or Ethernet arp packets. There are different and popular tools to scan network line masscan, nmap etc. Network scanning is one of the steps of penetration testing.
