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Cisco Secure VPN Exam Certification Guide - Cisco press

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298 Chapter 6: Configuring the Cisco VPN Client Firewall Feature

22What is another name for the Stateful Firewall client that is a part of the Cisco VPN Client?

23From the VPN Client, where can you view the secured routes that are enabled to the client?

24What is meant by the term Packets bypassed on the Statistics tab of the Connection Status screen?

25On the VPN 3000 Concentrator Series devices, you configure the client firewall properties on the Client FW tab of the Configuration | User Management | Groups | Add (or Modify) screen. You can only select one firewall policy from that screen. What are the three types of firewall policies that you can choose from the Client FW tab?

Scenario 6-1 Answers 299

Scenarios

Scenario 6-1

In Scenario 6-1, you connect a VPN Client to the VPN concentrator. You do this with and without a firewall installed on the client.

Your tasks are as follows:

1Configure the concentrator to accept a VPN connection with an optional firewall on the client.

2Configure the client with the Stateful Firewall feature off and then connect. Did you get a message stating that a firewall should be used?

3Reconfigure the client with the Stateful Firewall feature on and retest the connection. Did you still get the message regarding the firewall usage? Why not?

4Configure a filter on the concentrator.

5Configure the concentrator to require a firewall and push the filter to the client. Test both configurations on the client. What happens? Why?

6Reconfigure the concentrator to use AYT. Test both configurations on the client. What happens? Why?

Scenario 6-1 Answers

The following answers pertain to the tasks presented in the previous section:

1Configure the concentrator to accept a VPN connection with an optional firewall on the client in accordance with the text. Choose the Custom Firewall option on the Client FW tab on the Configuration | User Management | Groups | Modify screen to set the firewall option.

2You should receive a message because the Firewall Optional configuration sends a message to the client stating that a firewall should be used if it is not there. However, you should be able to connect.

3Setting the Stateful Firewall (Always On) feature to be enabled should have eliminated the message received from the concentrator.

4See Number 5.

300 Chapter 6: Configuring the Cisco VPN Client Firewall Feature

5See the section “Configuring Firewall Filter Rules” for the procedures on these items. The key is to remember that if you are pushing the filter to the client, you must build the client from the filter’s point of view. The filter has no effect on the client because the Stateful Firewall feature stands alone, and you cannot push a configuration from the concentrator to the client with a stateful firewall.

6This configuration enables you to connect and remain connected only if the Stateful Firewall feature is enabled.

Exam Topics Discussed in This Chapter

This chapter covers the following topics, which you need to master in your pursuit of certification as a Cisco Certified Security Professional:

25Monitoring the Cisco VPN 3000 Series Concentrator

26Administering the Cisco VPN 3000 Series Concentrator

C H A P T E R 7

Monitoring and Administering the

VPN 3000 Series Concentrator

This chapter deals with administering and monitoring the VPN 3000 Series Concentrator. Among these tasks are using preshared keys, configuring policies, and automatically updating the client, which are all tasks that you should master in order to pass the exam.

This text will guide you through most of the administering and monitoring options on the 3000 concentrators. Although every single screen is not examined, the vast majority of the screens and options are shown within this chapter. What have been skipped are those items with other screens that are so similar that their inclusion becomes redundant or of little value. One example of this is within the statistics section, where only a sample of the statistics screens available is shown; however, it will still benefit you in your daily activities to familiarize yourself with all of the available screens and options. The more thorough your knowledge of the system, the easier it becomes to use.

How Best to Use This Chapter

By taking the following steps, you can make better use of your time:

Keep your notes and answers for all your work with this book in one place for easy reference.

Take the “Do I Know This Already?” quiz, and write down your answers. Studies show retention is significantly increased through writing facts and concepts down, even if you never look at the information again.

Use the diagram in Figure 7-1 to guide you to the next step.

304 Chapter 7: Monitoring and Administering the VPN 3000 Series Concentrator

Figure 7-1 How to Use This Chapter

 

 

 

 

 

 

 

 

 

Take

 

 

 

 

 

 

 

 

"Do I Know This Already?"

 

 

 

 

 

 

 

 

 

 

 

 

 

Quiz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Low

 

 

 

 

 

 

 

 

 

 

 

High

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Score?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Medium

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Read

 

 

 

 

 

 

 

Review

 

 

 

 

 

 

 

 

 

 

Chapter

 

 

 

 

Foundation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Using

 

 

 

 

Topics

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Charts and Tables

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Want

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Review

 

 

Yes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Foundation

 

 

More

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Summary

 

 

 

 

Review?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Perform

 

 

 

 

 

 

 

 

 

 

 

End-of-Chapter

 

 

 

 

 

 

 

 

 

 

Q&A and Scenarios

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Go To

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Next

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Chapter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

“Do I Know This Already?” Quiz

The purpose of the “Do I Know This Already?” quiz is to help you decide what parts of the chapter to use. If you already intend to read the entire chapter, you do not necessarily need to answer these questions now.

This 10-question quiz helps you determine how to spend your limited study time. The quiz is sectioned into 2 smaller “quizlets,” which correspond to the two major topic headings in the chapter. Figure 7-1 outlines suggestions on how to spend your time in this chapter based on your quiz score. Use Table 7-1 to record your scores.

“Do I Know This Already?” Quiz 305

Table 7-1

Score Sheet for Quiz and Quizlets

 

 

 

 

 

 

 

 

 

Foundations Topics Section Covering These

 

 

 

Quizlet Number

Questions

Question

Score

 

 

 

 

 

 

1

Administering the Cisco VPN 3000 Series

1–5

 

 

 

Concentrator

 

 

 

 

 

 

 

 

2

Monitoring the Cisco VPN 3000 Series

6–10

 

 

 

Concentrator

 

 

 

 

 

 

 

 

All questions

 

1–10

 

 

 

 

 

 

1What screen is used to set the password for the administrator?

2You wish to limit HTTP access to the concentrator to hosts on the same subnet as the inside interface of the concentrator. What is the format of the access control list?

3What types of AAA servers can the VPN 3000 Series Concentrator use for authenticating management sessions?

4What is the upper limit for a management session timeout?

5What form of encryption may be used on a configuration file?

306 Chapter 7: Monitoring and Administering the VPN 3000 Series Concentrator

6On what screen can routes be cleared?

7Where can you see the CPU utilization on a Cisco 3000 Series Concentrator?

8Where can you troubleshoot an IPSec connection?

9Where can you troubleshoot TCP/IP connections?

10Where can you see the number of collisions on an Ethernet interface?

The answers to this quiz are listed in Appendix A, “Answers to the “Do I Know This Already?” Quizzes and Q&A Sections.” The suggestions for your next steps, based on quiz results, are as follows:

6 or less overall score—Read the entire chapter, including the “Foundation Topics” and “Foundation Summary” sections, and the “Q&A” section.

7–8 overall score—Begin with the “Foundation Summary” section, and continue with the “Q&A” section. If you are having difficulty with a particular subject area, read the appropriate section in “Foundation Topics” section.

9–10 overall score—If you feel you need more review on these topics, go to the “Foundation Summary” section, and then to the “Q&A” section. Otherwise, skip this chapter and go to the next chapter.

Administering the Cisco VPN 3000 Series Concentrator 307

Administering the Cisco VPN 3000 Series Concentrator

26 Administering the Cisco VPN 3000 Series Concentrator

To administer the Cisco VPN Concentrator, set the URL of your web browser to the IP address of your concentrator. Alternatively, if your DNS server will resolve the host name, you may enter the host name of the concentrator. You will see a screen similar to that shown in Figure 7-2. Once this screen is shown, enter a username and password. Later in this chapter you learn how to administer users and passwords. Click the Login button to continue.

Figure 7-2 Concentrator Login

Once you have logged into the concentrator, you will be presented with the main screen, as shown in Figure 7-3. This screen allows you to configure, administrate, or monitor the

concentrator. For purposes of this chapter, you will focus on the Administration and Monitoring options. Click the Administration link to start administering the concentrator.

Figure 7-3 Main Screen