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Chapter 1: Introduction to Packet Tracer
Packet Tracer is an exciting network design, simulation and modelling tool that allows you to develop your skill set in networking, cybersecurity, and the Internet of Things (IoT). It allows you to model complex systems without the need for dedicated equipment. It is used across numerous Cisco Academy courses to help develop and assess the skill set necessary for successful completion of the course.

In this chapter, Packet Tracer is introduced and instructions are provided to allow you to download and install it.
Overview of Packet Tracer
Cisco Packet Tracer is an innovative network simulation and visualization tool. This free software helps you to practice your network configuration and troubleshooting skills via your desktop computer or an Android or iOS based mobile device. Packet Tracer is available for both the Linux and Windows desktop environments.

With Packet Tracer you can choose to build a network from scratch, use a pre-built sample network, or complete classroom lab assignments. Packet Tracer allows you to easily explore how data traverses your network. Packet Tracer provides an easy way to design and build networks of varying sizes without expensive lab equipment. While this software is not a replacement for practicing on physical routers, switches, firewalls, and servers, it provides too many benefits to ignore!
Download and Install Packet Tracer
Students commonly use Packet Tracer to:

Prepare for a certification exam.
Practice what they learn in networking courses.
Sharpen their skills for a job interview.
Examine the impact of adding new technologies into existing network designs.
Build their skills for jobs in the Internet of Things.



Compete in Global Design Challenges (take a look at the 2017 PT 7 Design Challenge on Facebook).
Packet Tracer is an essential learning tool used in many Cisco Networking Academy courses.

Click Play in the video for a detailed walk-through of the Packet Tracer download and installation process.
Chapter 1: Introduction to Packet Tracer
At the completion of this chapter, you should be able to:

Explain the function and installation of Cisco Packet Tracer.



For additional help and practice using Packet Tracer, please visit the Tutorials located under Help in the Packet Tracer program. To view some examples of how Packet Tracer can be used, select File, then Open Samples from the main menu.
Click here to read a transcript of this video.

To obtain and install your copy of Cisco Packet Tracer follow these simple steps:

Log into your Cisco Networking Academy “I’m Learning” page.
Select Resources from the menu in the upper right portion of your screen.
Select Download Packet Tracer.
Select the version of Packet Tracer you require.
Save the file to your computer.
Launch the Packet Tracer install program.
After installation, close and restart your web browser.
Launch Cisco Packet Tracer by selecting the appropriate icon.
When prompted, use your Netacad login information to authenticate.
Packet Tracer will launch and you are ready to explore its features
Chapter 2: The User Interface
This chapter introduces the user interface and provides guidance on how to create a simple network using Packet Tracer
Packet Tracer User Interface
Packet Tracer is a tool that allows you to simulate real networks. It provides three main menus that allow you to:

add devices and connect them via cables or wireless



select, delete, inspect, label, and group components within your network
manage your network
The network management menu allows you to:

open an existing/sample network
save your current network
modify your user profile or your preferences
Click Play in the video to learn how to use the menus and how to create your first Packet Tracer network

Click here to read a transcript of this video.

If you have used any program such as a word processor or spreadsheet, you are already familiar with the File menu commands located in the top menu bar. The Open, Save, Save As, and Exit commands work as they would for any program, but there are two commands that are special to Packet Tracer.

The Open Samples command will display a directory of prebuilt examples of features and configurations of various network and Internet of Things devices included within Packet Tracer.




The Exit and Logout command will remove the registration information for this copy of Packet Tracer and require the next user of this copy of Packet Tracer to do the login
Packet Tracer - Finding and Deploying Devices
Since Packet Tracer simulates networks and network traffic, the physical aspects of these networks also needs to be simulated. This includes actually finding and deploying physical devices, customizing those devices, and cabling those devices. After the physical deployment and cabling is done, then it is time for configuration of the interfaces used to connect the devices.

Finding a device to deploy requires looking in the Device-Type Selection Box. The Device-Type Selection Box works on the concept of categories and sub-categories as shown in the figure.

The top row of icons represents the category list consisting of: [Networking Devices], [End Devices], [Components], [Connections], [Miscellaneous], and [Multiuser]. Each category contains at least one sub-category group.

Packet Tracer – Deploying Devices Instructions

Packet Tracer - Deploying Devices Packet Tracer File

Packet Tracer – Deploying and Cabling Devices Instructions

Packet Tracer – Deploying and Cabling Devices Packet Tracer File
Device Configuration
Once your network has been created, it is time to configure the devices and components. Packet Tracer has the capability to configure the different intermediate and end devices that make up your network. To access the configuration interface of any devices first click on the device that you wish to configure. A popup window will appear displaying a series of tabs. Different types of devices have different interfaces.

Click Play in the video to learn how to configure devices and components in your simulated network
Packet Tracer - GUI and CLI Configuration
For intermediate devices such as routers and switches, there are two methods of configuration available. Devices can be configured or investigated via a Config tab (a GUI interface) or a command line interface (CLI) (Figure 1). The Config tab does not exist in most physical equipment. This tab is a learning tab in Packet Tracer. If you don’t know how to use the command line interface, this tab provides a way to “fill in the blank” to do basic configurations. It will show the equivalent CLI commands that would do the same thing if using the Command Line Interface. The CLI interface requires knowledge of device configuration.

For some of the end devices, such as PCs and laptops, Packet Tracer provides a desktop interface that gives you access to IP configuration, wireless configuration, a command prompt, a Web browser, and much more (Figure 2).




If you are configuring a server, the server has all of the functions of the Host with the addition of one more tab, the services tab (Figure 3). This tab allows a server to be configured as a web server, a DHCP server, a DNS server, or various other servers visible in the graphic.

Packet Tracer – Configure End devices Instructions
Packet Tracer – Creating a Simple Network Using Packet Tracer
In this lab, you will use Packet Tracer to create a simple network.

Packet Tracer - Create a Simple Network Using Packet Tracer Instructions
Chapter 2: The User Interface
At the completion of this chapter, you should be able to:

Investigate the Packet Tracer User Interface.
For additional help and practice using Packet Tracer, please visit the Tutorials located under Help in the Packet Tracer program. To view some examples of how Packet Tracer can be used, select File, then Open Samples from the main menu.
Chapter 3: Simulation Mode
In this chapter, you learn how to use Packet Tracer’s powerful simulation mode. This mode allows you to verify device connectivity and to study how the various types of data traverse your network
Creating PDUs in Simulation Mode
Packet Tracer provides a Simulation mode that allows you to create and capture PDUs to check several functions within your network, such as:

Basic Connectivity – Can all devices communicate with each other?
Security – Are access lists functioning as designed?
Applications and Services – Are applications and services such as DNS, HTTP, and FTP functioning as designed?
The default mode for Packet Tracer is Realtime mode. In Realtime mode the time is continuously running as indicated by the clock in the lower right hand corner of the worksheet. In Simulation mode, time can be stopped or slowed to allow users to view data traffic one packet at a time. Simulation mode is used to observe network traffic in detail with time controlled directly by the user.

Click Play in the video to see how to use Simulation mode to create simple PDUs to replicate ICMP and ARP functionality and how to create more complex PDUs from a list of protocols such as DNS, HTTP, Telnet, SSH, FTP, and many more.
Viewing the Contents of PDUs
Once the PDUs have been captured, you have several ways to view their contents. Viewing the contents of the PDUs can be used to verify connectivity, verify functionality, and troubleshoot issues. It is also a great tool for studying or reviewing the contents of the OSI model layers and the mechanisms of communication.

If viewed in OSI Model mode, you see a summary of the addresses and contents of the headers at each layer. If you select Inbound or Outbound PDU Details, the exact format of the appropriate headers is displayed.
Packet Tracer – Explore Network Functionality Using PDUs
In this lab, you will use the Packet Tracer Simulation mode, to explore network functionality.

Packet Tracer - Explore Network Functionality Using PDUs Instructions
Chapter 3: Simulation Mode
At the completion of this chapter, you should be able to:

Investigate network functionality using Packet Tracer Simulation mode.
For additional help and practice using Packet Tracer, please visit the Tutorials located under Help in the Packet Tracer program. To view some examples of how Packet Tracer can be
used, select File, then Open Samples from the main menu.
Chapter 4: Packet Tracer Usage
In this chapter, you are introduced to the Physical view. This mode allows you to place a logical network topology into a physical context. Packet Tracer creates various file types. The file types are introduced in this chapter and we also discuss how Packet Tracer is used as an assessment tool.
The Packet Tracer Physical View
Now that you know the purpose and the use of the menus in the logical workspace, we will move on to learn about the physical workspace in Packet Tracer. The default view for Packet Tracer is Logical, which is equivalent to creating a logical diagram for the network. The other type of diagram used in networking is the physical diagram which not only shows the relationships of the network devices but also applies building and distance factors in making the design.

Packet Tracer has the physical workspace that allows you to make your network more realistic by adding backgrounds, buildings, and wiring closets. These features are important for documentation, design, and visualization. You can see the actual layout of the network within a room or a building. This provides valuable information into the flow of traffic and the suitability and placement of equipment. The Physical view also has a great feature that shows the wireless coverage areas based on your equipment placement within buildings.

In this section, you will learn to:

Navigate the physical workspace.
Add cities, corporate offices, and branch offices.
Add backgrounds into the cities and offices.
Add wiring closets to the offices.
Place networking devices into racks within the closets.
When the Physical view is shown, the basic organizational scheme is the following:

a. intercity
b. city
c. building
d. wiring closet


A user is able to add as many cities, buildings, and wiring closets as they need; however, there can only be one intercity. Containers of smaller sizes can be added at any level but larger containers cannot be added into smaller containers. For example, a building can be added to the intercity, but a city cannot be added to a building, and a building cannot be added to a wPacket Tracer - Packet Tracer Physical View
In this lab, you will explore the capabilities of Packet Tracer Physical view.

Packet Tracer - Packet Tracer Physical View Instructions iring closet.
Packet Tracer - Packet Tracer Physical View
In this lab, you will explore the capabilities of Packet Tracer Physical view.

Packet Tracer - Packet Tracer Physical View Instructions
Packet Tracer File Types
Packet Tracer has the ability to create three different types of files. These file types are used for different purposes and include: .pkt, .pkz, and .pka.

The .pkt file type is used when a simulated network is built in Packet Tracer and saved. The .pkt file can also have backgrounds embedded within it.

The .pkz file type is not used very often. It is a compressed file that allows the inclusion of other files, such as .pdf files, along with the Packet Tracer files.

The .pka file type is a Packet Tracer Activity file. This file type contains a Packet Tracer activity plus an instruction window. The instructions provide a walkthrough of the necessary processes required to complete the activity, assignment, or assessment. The instruction window also contains a completion percentage to track how much of the activity has been successfully completed. There is also a Check Results feature that can be configured to provide feedback.
Packet Tracer Assessment Types
Packet Tracer is used in the Networking Academy to assist in the design, creation and testing of networks and network applications. Packet Tracer is also used for purposes of self-evaluation, practice, and formal assessment. This section will display and discuss PTSAs and PTMOs.

A PTMO (Packet Tracer as a Media Object) is an assessment item where a Packet Tracer Activity is part of the assessment item. Once the .pka is loaded, the student is provided with a small set of instructions to be completed. Once completed, they are able to return to the item to answer the question based on their work. PTMOs can be used by themselves or as an item on a quiz or final exam.

A PTSA (Packet Tracer Skills Assessment) is used as a standalone skills-based assessment complete with a full set of instructions. Students are required to build, modify, and/or troubleshoot a network. PTSAs are often done in a timed environment. Once the student has completed the activity, they submit their work to netacad.com. Some PTSAs are configured to allow students to save their work and continue at a later time.

Once a PTSA has been completed, the student will receive their score plus item level feedback. They also see a list of objectives of the PTSA along with information about what they did right and what they did wrong. All forms of feedback are intended to assist the student to improve their skills.
Chapter 4: Packet Tracer Usage
At the completion of this chapter, you should be able to:

Investigate the Packet Tracer Physical view.
Explain Packet Tracer File and Assessment types.
For additional help and practice using Packet Tracer, please visit the Tutorials located under Help in the Packet Tracer program. To view some examples of how Packet Tracer can be used, select File, then Open Samples from the main menu


Original text

Chapter 1: Introduction to Packet Tracer
Packet Tracer is an exciting network design, simulation and modelling tool that allows you to develop your skill set in networking, cybersecurity, and the Internet of Things (IoT). It allows you to model complex systems without the need for dedicated equipment. It is used across numerous Cisco Academy courses to help develop and assess the skill set necessary for successful completion of the course.


In this chapter, Packet Tracer is introduced and instructions are provided to allow you to download and install it.
Overview of Packet Tracer
Cisco Packet Tracer is an innovative network simulation and visualization tool. This free software helps you to practice your network configuration and troubleshooting skills via your desktop computer or an Android or iOS based mobile device. Packet Tracer is available for both the Linux and Windows desktop environments.


With Packet Tracer you can choose to build a network from scratch, use a pre-built sample network, or complete classroom lab assignments. Packet Tracer allows you to easily explore how data traverses your network. Packet Tracer provides an easy way to design and build networks of varying sizes without expensive lab equipment. While this software is not a replacement for practicing on physical routers, switches, firewalls, and servers, it provides too many benefits to ignore!
Download and Install Packet Tracer
Students commonly use Packet Tracer to:


Prepare for a certification exam.
Practice what they learn in networking courses.
Sharpen their skills for a job interview.
Examine the impact of adding new technologies into existing network designs.
Build their skills for jobs in the Internet of Things.


Compete in Global Design Challenges (take a look at the 2017 PT 7 Design Challenge on Facebook).
Packet Tracer is an essential learning tool used in many Cisco Networking Academy courses.


Click Play in the video for a detailed walk-through of the Packet Tracer download and installation process.
Chapter 1: Introduction to Packet Tracer
At the completion of this chapter, you should be able to:


Explain the function and installation of Cisco Packet Tracer.


For additional help and practice using Packet Tracer, please visit the Tutorials located under Help in the Packet Tracer program. To view some examples of how Packet Tracer can be used, select File, then Open Samples from the main menu.
Click here to read a transcript of this video.


To obtain and install your copy of Cisco Packet Tracer follow these simple steps:


Log into your Cisco Networking Academy “I’m Learning” page.
Select Resources from the menu in the upper right portion of your screen.
Select Download Packet Tracer.
Select the version of Packet Tracer you require.
Save the file to your computer.
Launch the Packet Tracer install program.
After installation, close and restart your web browser.
Launch Cisco Packet Tracer by selecting the appropriate icon.
When prompted, use your Netacad login information to authenticate.
Packet Tracer will launch and you are ready to explore its features
Chapter 2: The User Interface
This chapter introduces the user interface and provides guidance on how to create a simple network using Packet Tracer
Packet Tracer User Interface
Packet Tracer is a tool that allows you to simulate real networks. It provides three main menus that allow you to:


add devices and connect them via cables or wireless


select, delete, inspect, label, and group components within your network
manage your network
The network management menu allows you to:


open an existing/sample network
save your current network
modify your user profile or your preferences
Click Play in the video to learn how to use the menus and how to create your first Packet Tracer network


Click here to read a transcript of this video.


If you have used any program such as a word processor or spreadsheet, you are already familiar with the File menu commands located in the top menu bar. The Open, Save, Save As, and Exit commands work as they would for any program, but there are two commands that are special to Packet Tracer.


The Open Samples command will display a directory of prebuilt examples of features and configurations of various network and Internet of Things devices included within Packet Tracer.


The Exit and Logout command will remove the registration information for this copy of Packet Tracer and require the next user of this copy of Packet Tracer to do the login
Packet Tracer - Finding and Deploying Devices
Since Packet Tracer simulates networks and network traffic, the physical aspects of these networks also needs to be simulated. This includes actually finding and deploying physical devices, customizing those devices, and cabling those devices. After the physical deployment and cabling is done, then it is time for configuration of the interfaces used to connect the devices.


Finding a device to deploy requires looking in the Device-Type Selection Box. The Device-Type Selection Box works on the concept of categories and sub-categories as shown in the figure.


The top row of icons represents the category list consisting of: [Networking Devices], [End Devices], [Components], [Connections], [Miscellaneous], and [Multiuser]. Each category contains at least one sub-category group.


Packet Tracer – Deploying Devices Instructions


Packet Tracer - Deploying Devices Packet Tracer File


Packet Tracer – Deploying and Cabling Devices Instructions


Packet Tracer – Deploying and Cabling Devices Packet Tracer File
Device Configuration
Once your network has been created, it is time to configure the devices and components. Packet Tracer has the capability to configure the different intermediate and end devices that make up your network. To access the configuration interface of any devices first click on the device that you wish to configure. A popup window will appear displaying a series of tabs. Different types of devices have different interfaces.


Click Play in the video to learn how to configure devices and components in your simulated network
Packet Tracer - GUI and CLI Configuration
For intermediate devices such as routers and switches, there are two methods of configuration available. Devices can be configured or investigated via a Config tab (a GUI interface) or a command line interface (CLI) (Figure 1). The Config tab does not exist in most physical equipment. This tab is a learning tab in Packet Tracer. If you don’t know how to use the command line interface, this tab provides a way to “fill in the blank” to do basic configurations. It will show the equivalent CLI commands that would do the same thing if using the Command Line Interface. The CLI interface requires knowledge of device configuration.


For some of the end devices, such as PCs and laptops, Packet Tracer provides a desktop interface that gives you access to IP configuration, wireless configuration, a command prompt, a Web browser, and much more (Figure 2).


If you are configuring a server, the server has all of the functions of the Host with the addition of one more tab, the services tab (Figure 3). This tab allows a server to be configured as a web server, a DHCP server, a DNS server, or various other servers visible in the graphic.


Packet Tracer – Configure End devices Instructions
Packet Tracer – Creating a Simple Network Using Packet Tracer
In this lab, you will use Packet Tracer to create a simple network.


Packet Tracer - Create a Simple Network Using Packet Tracer Instructions
Chapter 2: The User Interface
At the completion of this chapter, you should be able to:


Investigate the Packet Tracer User Interface.
For additional help and practice using Packet Tracer, please visit the Tutorials located under Help in the Packet Tracer program. To view some examples of how Packet Tracer can be used, select File, then Open Samples from the main menu.
Chapter 3: Simulation Mode
In this chapter, you learn how to use Packet Tracer’s powerful simulation mode. This mode allows you to verify device connectivity and to study how the various types of data traverse your network
Creating PDUs in Simulation Mode
Packet Tracer provides a Simulation mode that allows you to create and capture PDUs to check several functions within your network, such as:


Basic Connectivity – Can all devices communicate with each other?
Security – Are access lists functioning as designed?
Applications and Services – Are applications and services such as DNS, HTTP, and FTP functioning as designed?
The default mode for Packet Tracer is Realtime mode. In Realtime mode the time is continuously running as indicated by the clock in the lower right hand corner of the worksheet. In Simulation mode, time can be stopped or slowed to allow users to view data traffic one packet at a time. Simulation mode is used to observe network traffic in detail with time controlled directly by the user.


Click Play in the video to see how to use Simulation mode to create simple PDUs to replicate ICMP and ARP functionality and how to create more complex PDUs from a list of protocols such as DNS, HTTP, Telnet, SSH, FTP, and many more.
Viewing the Contents of PDUs
Once the PDUs have been captured, you have several ways to view their contents. Viewing the contents of the PDUs can be used to verify connectivity, verify functionality, and troubleshoot issues. It is also a great tool for studying or reviewing the contents of the OSI model layers and the mechanisms of communication.


If viewed in OSI Model mode, you see a summary of the addresses and contents of the headers at each layer. If you select Inbound or Outbound PDU Details, the exact format of the appropriate headers is displayed.
Packet Tracer – Explore Network Functionality Using PDUs
In this lab, you will use the Packet Tracer Simulation mode, to explore network functionality.


Packet Tracer - Explore Network Functionality Using PDUs Instructions
Chapter 3: Simulation Mode
At the completion of this chapter, you should be able to:


Investigate network functionality using Packet Tracer Simulation mode.
For additional help and practice using Packet Tracer, please visit the Tutorials located under Help in the Packet Tracer program. To view some examples of how Packet Tracer can be
used, select File, then Open Samples from the main menu.
Chapter 4: Packet Tracer Usage
In this chapter, you are introduced to the Physical view. This mode allows you to place a logical network topology into a physical context. Packet Tracer creates various file types. The file types are introduced in this chapter and we also discuss how Packet Tracer is used as an assessment tool.
The Packet Tracer Physical View
Now that you know the purpose and the use of the menus in the logical workspace, we will move on to learn about the physical workspace in Packet Tracer. The default view for Packet Tracer is Logical, which is equivalent to creating a logical diagram for the network. The other type of diagram used in networking is the physical diagram which not only shows the relationships of the network devices but also applies building and distance factors in making the design.


Packet Tracer has the physical workspace that allows you to make your network more realistic by adding backgrounds, buildings, and wiring closets. These features are important for documentation, design, and visualization. You can see the actual layout of the network within a room or a building. This provides valuable information into the flow of traffic and the suitability and placement of equipment. The Physical view also has a great feature that shows the wireless coverage areas based on your equipment placement within buildings.


In this section, you will learn to:


Navigate the physical workspace.
Add cities, corporate offices, and branch offices.
Add backgrounds into the cities and offices.
Add wiring closets to the offices.
Place networking devices into racks within the closets.
When the Physical view is shown, the basic organizational scheme is the following:


a. intercity
b. city
c. building
d. wiring closet


A user is able to add as many cities, buildings, and wiring closets as they need; however, there can only be one intercity. Containers of smaller sizes can be added at any level but larger containers cannot be added into smaller containers. For example, a building can be added to the intercity, but a city cannot be added to a building, and a building cannot be added to a wPacket Tracer - Packet Tracer Physical View
In this lab, you will explore the capabilities of Packet Tracer Physical view.


Packet Tracer - Packet Tracer Physical View Instructions iring closet.
Packet Tracer - Packet Tracer Physical View
In this lab, you will explore the capabilities of Packet Tracer Physical view.


Packet Tracer - Packet Tracer Physical View Instructions
Packet Tracer File Types
Packet Tracer has the ability to create three different types of files. These file types are used for different purposes and include: .pkt, .pkz, and .pka.


The .pkt file type is used when a simulated network is built in Packet Tracer and saved. The .pkt file can also have backgrounds embedded within it.


The .pkz file type is not used very often. It is a compressed file that allows the inclusion of other files, such as .pdf files, along with the Packet Tracer files.


The .pka file type is a Packet Tracer Activity file. This file type contains a Packet Tracer activity plus an instruction window. The instructions provide a walkthrough of the necessary processes required to complete the activity, assignment, or assessment. The instruction window also contains a completion percentage to track how much of the activity has been successfully completed. There is also a Check Results feature that can be configured to provide feedback.
Packet Tracer Assessment Types
Packet Tracer is used in the Networking Academy to assist in the design, creation and testing of networks and network applications. Packet Tracer is also used for purposes of self-evaluation, practice, and formal assessment. This section will display and discuss PTSAs and PTMOs.


A PTMO (Packet Tracer as a Media Object) is an assessment item where a Packet Tracer Activity is part of the assessment item. Once the .pka is loaded, the student is provided with a small set of instructions to be completed. Once completed, they are able to return to the item to answer the question based on their work. PTMOs can be used by themselves or as an item on a quiz or final exam.


A PTSA (Packet Tracer Skills Assessment) is used as a standalone skills-based assessment complete with a full set of instructions. Students are required to build, modify, and/or troubleshoot a network. PTSAs are often done in a timed environment. Once the student has completed the activity, they submit their work to netacad.com. Some PTSAs are configured to allow students to save their work and continue at a later time.


Once a PTSA has been completed, the student will receive their score plus item level feedback. They also see a list of objectives of the PTSA along with information about what they did right and what they did wrong. All forms of feedback are intended to assist the student to improve their skills.
Chapter 4: Packet Tracer Usage
At the completion of this chapter, you should be able to:


Investigate the Packet Tracer Physical view.
Explain Packet Tracer File and Assessment types.
For additional help and practice using Packet Tracer, please visit the Tutorials located under Help in the Packet Tracer program. To view some examples of how Packet Tracer can be used, select File, then Open Samples from the main menu


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