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You're reading from CCENT/CCNA: ICND1 100-105 Certification Guide Learn computer network essentials and enhance your networking skills by obtaining the CCENT certification

Product type Paperback

Published in Apr 2018

Publisher

ISBN-13 9781788621434

Length 362 pages

Edition 1st Edition

Tools

Linux

Concepts

IT Certification

Author (1):

Bekim Dauti

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Table of Contents (23) Chapters

Title Page

Dedication

Packt Upsell

Contributors

Preface

1. Introduction to Computer Networks FREE CHAPTER

2. Communication in Computer Networks

3. Introduction to Switching

4. Setting Up the Switch

5. Introduction to Routing

6. Setting up the Router

7. Networking Services and Maintenance

8. Network Troubleshooting

9. Studying and Preparing for ICND 1 (100-105) Exam

1. Appendix A: Answers to Chapter Questions

2. Appendix B: Cisco Device Icons

Cisco network topology icons

3. Appendix C: Numbering Systems and Conversions

4. Appendix D: Boolean Algebra

5. Appendix E: Subnetting

6. Appendix F: Cisco Packet Tracer

7. Appendix G: Graphical Network Simulator-3 (GNS3)

8. Other Books you may enjoy

Index

The IP addresses and subnets

Nowadays, a lot of effort is being made to advance the development of IP addressing technologies. IPv6 addressing is the best example of such an effort. Nevertheless, even though the IPv6 addressing technology is becoming more and more plausible, it still prefers the role of spectator in the great arena of the internet, where IPv4 addressing technology continues to be the norm.

IPv4 network addresses

To communicate with a device on the network, it must be equipped with an IP address. Currently, the addressing technology we use isInternet Protocol version 4 (IPv4) addressing. The label v4 represents the fourth version of IP addressing, as specified in IETF publication RCF 791. However, you will often encounter it as simply an IP address. It is a logical element that consists of 32 bits and identifies a network interface of a given device. It is organized in 4 octets with 8 bits in each of them, divided by a decimal point for simplicity of interpretation (for example...