tldr/pages/linux/arp-scan.md

arp-scan

Send ARP packets to hosts (specified as IP addresses or hostnames) to scan the local network.

• Scan the current local network:

arp-scan --localnet

• Scan an IP network with a custom bitmask:

arp-scan {{192.168.1.1}}/{{24}}

• Scan an IP network within a custom range:

arp-scan {{127.0.0.0}}-{{127.0.0.31}}

• Scan an IP network with a custom net mask:

arp-scan {{10.0.0.0}}:{{255.255.255.0}}