Chapter 1. Layer 2 Security

Examining Layer 2 Attacks

Security is a topic on every network administrator’s mind, regardless of whether it’s even part of his or her job. And to protect networks, people deploy a variety of devices, including firewalls and intrusion prevention systems. Although these types of devices need to be present, they don’t protect a certain area of the network that is often left vulnerable to attack: Layer 2. That’s right; the access layer is often forgotten. This leaves your network open to myriad simple-to-run attacks that can wreak havoc on a network.

Those preparing for the CCSP-SNRS certification exam must understand Layer 2 attacks and their mitigation techniques. An understanding of these concepts and mitigation techniques ...

Get CCSP SNRS Quick Reference Sheets now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.