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)

Configuring a Zone-Based Firewall

In this section, we are going to focus on setting up a ZBF using a Cisco IOS router. Before we begin, let's discuss the ZBF and its benefits. When we hear the word firewall, we usually think it's a dedicated appliance sitting on the network. This is true, however, Cisco's Integrated Service Routers (ISRs) has the ability to perform many more tasks than just routing. One main feature is the firewall aspect, which allows the router to not only forward packets but become a ZBF. This is convenient for companies that may not have the budget or need for a dedicated firewall appliance but would like to maximize the benefits of the Cisco ISR.

To determine whether a router supports the ZBF features and functionality, you can use the Cisco Feature Navigator (https://www.cisco.com/go/fn).

With a ZBF, each interface is assigned to a Zone, either...