Book Image

CCNA Security 210-260 Certification Guide

By : Glen D. Singh, Michael Vinod, Vijay Anandh
Book Image

CCNA Security 210-260 Certification Guide

By: Glen D. Singh, Michael Vinod, Vijay Anandh

Overview of this book

With CCNA Security certification, a network professional can demonstrate the skills required to develop security infrastructure, recognize threats and vulnerabilities to networks, and mitigate security threats. The CCNA Security 210-260 Certification Guide will help you grasp the fundamentals of network security and prepare you for the Cisco CCNA Security Certification exam. You’ll begin by getting a grip on the fundamentals of network security and exploring the different tools available. Then, you’ll see how to securely manage your network devices by implementing the AAA framework and configuring different management plane protocols. Next, you’ll learn about security on the data link layer by implementing various security toolkits. You’ll be introduced to various firewall technologies and will understand how to configure a zone-based firewall on a Cisco IOS device. You’ll configure a site-to-site VPN on a Cisco device and get familiar with different types of VPNs and configurations. Finally, you’ll delve into the concepts of IPS and endpoint security to secure your organization’s network infrastructure. By the end of this book, you’ll be ready to take the CCNA Security Exam (210-260).
Table of Contents (19 chapters)

IDS and IPS

In this section, we will discuss the difference between and the placement of both an IDS and an IPS.

Intrusion Detection Systems

An Intrusion Detection System is an appliance that is used to detect security threats, either on a host system or a network. Let's use the following network topology to further explain how an IDS works:

As you can see, the IDS is not connected inline but to a port on the switch; therefore, the IDS will receive a copy of the network traffic for analysis and does not add any latency or delay the flow of traffic. Furthermore, if the IDS appliance is disabled or goes down, the network performance is not impacted. However, since it receives only a copy of the traffic and it's not...