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CCCENT/CCNA ICND1 100-105 Official Certification Guide, First Edition by Wendell Odom

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Chapter 23. IPv4 Troubleshooting Tools

This chapter covers the following exam topics:

1.0 Network Fundamentals

1.8 Configure, verify, and troubleshoot IPv4 addressing and subnetting

4.0 Infrastructure Services

4.1 Describe DNS lookup operation

4.2 Troubleshoot client connectivity issues involving DNS

5.0 Infrastructure Management

5.6 Use Cisco IOS tools to troubleshoot and resolve problems

5.6.a Ping and traceroute with extended option

The first two chapters here in Part VI of the book made us think more about the entire enterprise IPv4 network. Chapter 21, “Subnet Design,” examined all the subnets in a subnetting plan, so you could look at an enterprise network and know which subnets could be used, beyond what subnets were already in use.

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