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CCNA Routing and Switching 200-125 Certification Guide

You're reading from   CCNA Routing and Switching 200-125 Certification Guide The ultimate solution for passing the CCNA certification and boosting your networking career

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Product type Paperback
Published in Oct 2018
Publisher Packt
ISBN-13 9781787127883
Length 504 pages
Edition 1st Edition
Tools
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Author (1):
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Lazaro (Laz) Diaz Lazaro (Laz) Diaz
Author Profile Icon Lazaro (Laz) Diaz
Lazaro (Laz) Diaz
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Table of Contents (24) Chapters Close

Preface 1. Internetworking Models FREE CHAPTER 2. Ethernet Networking and Data Encapsulations 3. Introducing the TCP/IP 4. Subnetting in IPv4 5. Variable Length Subnet Mask and Route Summarization 6. The IOS User Interface 7. Managing the Cisco Internetwork 8. Managing Cisco Devices 9. The IP Routing Process 10. The IPv6 Protocol 11. Introduction to IPv6 Routing 12. Switching Services and Configurations 13. VLANs and Inter-VLAN Routing 14. Introduction to the EIGRP Routing Protocol 15. The World of Open Shortest Path First (OSPF) 16. Border Gateway Protocol 17. Access-Control List 18. Network Address Translation 19. Wide Area Networks 20. Advanced Networking Topics 21. Mock Test Questions
22. Assessments
23. Other Books You May Enjoy

Backing up and restoring your IOS

You should know by now that before you perform any kind of change to your internetworking devices or end devices, you need to back up your configurations and your IOS. It does not matter whether it's a hardware or a software update, especially if you're upgrading your IOS, you better be sure that you have a back up of the existing IOS and configurations.

This is IT, ladies and gentlemen: if something can go wrong, it will. So, back everything up.

With that disclaimer said, I will show how you would back up your IOS to a TFTP server:

  1. Make sure you are connected to the server:
  1. You need to know the source file name you are backing up:
  1. Start the back up process:
  1. Verify that the file was copied to the TFTP server:

For certification purposes, they want you to know three steps:

  1. Verify connectivity.
  2. Does the TFTP sever have enough...
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