ARP Scanning

Explore the world of ARP Scanning: Learn techniques, tools, and see it in action.

What is ARP Scanning?

ARP (Address Resolution Protocol) scanning is a technique used to discover active devices on a local network by sending ARP requests to all possible IP addresses within a subnet. It maps IP addresses to MAC addresses, helping to identify live hosts on the network.

ARP Scanning Tools and Commands

arp-scan

A command-line tool for ARP scanning available on Linux and macOS.

sudo arp-scan --localnet

Scans the local network for all active devices.

sudo arp-scan -I eth0 192.168.1.0/24

Scans a specific subnet (192.168.1.0/24) using the eth0 interface.

sudo arp-scan --bandwidth=256K 10.0.0.0/8

Scans a large network (10.0.0.0/8) with bandwidth limiting to avoid network congestion.

ARP Scanning Visualization

Ready to scan

Best Practices and Limitations

Warning

The information provided here is for educational purposes only. Performing ARP scans on networks you do not own or have explicit permission to test may be illegal and unethical. Always respect privacy and legal boundaries when conducting network scans.