CCNA 200-301 Official Cert Guide Library, 2nd Edition

Chapter 12

DHCP Snooping and ARP Inspection

This chapter covers the following exam topics:

5.0 Security Fundamentals

5.7 Configure and verify Layer 2 security features (DHCP snooping, dynamic ARP inspection, and port security)

To understand the kinds of risks that exist in modern networks, you have to first understand the rules. Then you have to think about how an attacker might take advantage of those rules in different ways. Some attacks might cause harm as part of a denial-of-service (DoS) attack, while a reconnaissance attack may gather more data to prepare for some other attack. For every protocol and function you learn in networking, there are possible methods to take advantage of those features to give an attacker an advantage.

This chapter ...