Sybex CCNA 640-802 VLSMs, Summarization, and Troubleshooting

TCP/IP

Instructor & Todd Lammle

Chapter 5 Objectives

• Implement an IP addressing scheme and IP Services to meet network requirements in a medium-size Enterprise branch office network

• Implement static and dynamic addressing services for hosts in a LAN environment

• Calculate and apply an addressing scheme including VLSM IP addressing design to a network

• Determine the appropriate classless addressing scheme using VLSM and summarization to satisfy addressing requirements in a LAN/WAN environment

• Identify and correct common problems associated with IP addressing and host configurations

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Variable Length Subnet Masks (VLSM)

Classful network

Variable Length Subnet Masks (VLSM)

Classless design

VLSM Worksheet

VSLM, Example 1

VLSM Example 1

VLSM, Example 2

Which IP address will be placed in each router’s FastEthernet 0/0 interface and serial

0/1 of RouterB?

Answer

Summary Example

TroubleshootingWhy can’t the Sales LAN get to Server A?

Why can’t hosts in the Sales LAN get to Server B?

What can the host address be?

Which addresses can you assign to the hosts?

Which IP addresses can you assign?

Summary

– Open your books and go through all the written labs and the review questions.

– Review the answers in class.

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