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CCNA 2 v3.1 Module 10Intermediate TCP/IP

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Purpose of This PowerPoint

• This PowerPoint primarily consists of the Target Indicators (TIs) of this module in CCNA version 3.1.

• It was created to give instructors a PowerPoint to take and modify as their own.

• This PowerPoint is:

NOT a study guide for the module final assessment.

NOT a study guide for the CCNA certification exam.

• Please report any mistakes you find in this PowerPoint by using the Academy Connection Help link.

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To Locate Instructional Resource Materials on Academy Connection:

• Go to the Community FTP Center to locate materials created by the instructor community

• Go to the Tools section

• Go to the Alpha Preview section

• Go to the Community link under Resources

• See the resources available on the Class home page for classes you are offering

• Search http://www.cisco.com

• Contact your parent academy!

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Objectives

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TCP Operation

The transport layer is responsible for the reliable transport of and regulation of data flow from source to destination.

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Synchronization or Three-Way Handshake

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Denial-of-Service Attacks

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Simple Windowing

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TCP Sequence and Acknowledgment Numbers

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Positive ACK

• Acknowledgement is a common step in the synchronization process which includes sliding windows and data sequencing.

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Protocol Graph: TCP/IP

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UDP Segment Format

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Port Numbers

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Telnet Port Numbers

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Reserved TCP and UDP Port Numbers

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Ports for Clients

• Whenever a client connects to a service on a server, a source and destination port must be specified.

• TCP and UDP segments contain fields for source and destination ports.

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Port Numbering and Well-Known Port Numbers

• Port numbers are divided into three different categories:

well-known ports

registered ports

dynamic or private ports

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Port Numbers and Socket

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Comparison of MAC addresses, IP addresses, and port numbers

• A good analogy can be made with a normal letter.

• The name on the envelope would be equivalent to a port number, the street address is the MAC, and the city and state is the IP address.

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Summary