Book Image

Implementing and Administering Cisco Solutions: 200-301 CCNA Exam Guide

By : Glen D. Singh
Book Image

Implementing and Administering Cisco Solutions: 200-301 CCNA Exam Guide

By: Glen D. Singh

Overview of this book

In the dynamic technology landscape, staying on top of the latest technology trends is a must, especially if you want to build a career in network administration. Achieving CCNA 200-301 certification will validate your knowledge of networking concepts, and this book will help you to do just that. This exam guide focuses on the fundamentals to help you gain a high-level understanding of networking, security, IP connectivity, IP services, programmability, and automation. Starting with the functions of various networking components, you’ll discover how they are used to build and improve an enterprise network. You’ll then delve into configuring networking devices using a command-line interface (CLI) to provide network access, services, security, connectivity, and management. The book covers important aspects of network engineering using a variety of hands-on labs and real-world scenarios that will help you gain essential practical skills. As you make progress, this CCNA certification study guide will help you get to grips with the solutions and technologies that you need to implement and administer a broad range of modern networks and IT infrastructures. By the end of this book, you’ll have gained the confidence to pass the Cisco CCNA 200-301 exam on the first attempt and be well-versed in a variety of network administration and security engineering solutions.
Table of Contents (26 chapters)
1
Section 1: Network Fundamentals
6
Section 2: Network Access
9
Section 3: IP Connectivity
12
Section 4: IP Services
15
Section 5: Security Fundamentals
20
Section 6: Automation and Programmability
22
Chapter 16: Mock Exam 1
23
Chapter 17: Mock Exam 2

Chapter 13: Implementing Access Control Lists

Whenever the need arises to interconnect two or more networks, a router is always the preferred choice, simply because the primary function of a router is to forward packets between networks. However, the Cisco IOS router has many more features aside from simply forwarding. One major feature is to filter traffic based on its source and destination. This feature simply enables the Cisco IOS router to perform packet filtering in a similar fashion to a firewall appliance on the network.

Throughout this chapter, you will learn how Access Control Lists (ACLs) can be applied to a Cisco IOS router to filter both inbound and outbound traffic. Furthermore, you will discover the various types of ACLs and how they can be used in various situations to allow or deny traffic between networks.

In this chapter, we will cover the following topics:

  • What are ACLs?
  • ACL operation
  • ACL wildcard masks
  • Working with standard ACLs
  • Working...