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)

Advanced NAT configurations

In this section, we are going to a take a look at both static and dynamic NAT, exploring their purpose and configurations.

Static NAT

Static NAT is generally used to provide access from the Outside zone, such as the internet, to a server on the DMZ of your corporate network.

Let's observe the following topology, there's one server on the DMZ, assuming its IP address is 172.16.1.50, however, users on the internet would require access to the server and the FTP service:

To configure static NAT on the ASA using the CLI, the following steps will guide us through the process:

  1. Create a network object, add the server as an object, and create the NAT rule:
ASA-1(config)# object network DMZ...