Understanding ARP Spoofing for the PenTest+ Exam

ARP spoofing involves sending falsified ARP messages over a local area network to link an attacker's MAC address with the IP address of a legitimate computer or server on the network.

What is ARP Spoofing?

ARP (Address Resolution Protocol) is used to map IP addresses to MAC addresses on a local network.

Spoofing this protocol allows attackers to intercept, modify, or stop data in-transit.

How the Attack Works

An attacker sends malicious ARP packets, flooding the target's ARP cache.

This results in a Man-in-the-Middle (MitM) position, letting the attacker eavesdrop on traffic.

Defending Against ARP Spoofing

Using dynamic ARP inspection (DAI) on enterprise switches is the primary defense.

Additionally, static ARP entries can be used for critical devices.

Preparing for the Exam

For PenTest+, you must know how to execute and remediate this attack.

Using high-quality practice exams like Cert Sensei is the best way to study and validate your knowledge.

❓ Frequently Asked Questions