8.5.2.4 Packet Tracer – Configure Initial Router Settings Answers

8.5.2.4 Packet Tracer – Configure Initial Router Settings Answers

Packet Tracer – Configure Initial Router Settings (Answers Version)

Answers Note: Red font color or gray highlights indicate text that appears in the Answers copy only.

Topology

Objectives

Part 1: Verify the Default Router Configuration

Part 2: Configure and Verify the Initial Router Configuration

Part 3: Save the Running Configuration File

Background

In this activity, you will perform basic router configurations. You will secure access to the CLI and console port using encrypted passwords. You will also configure messages for users logging into the router. These banners will warn unauthorized users that access is prohibited. Finally, you will verify and save your running configuration.

Part 1: Verify the Default Router Configuration

Step 1: Establish a console connection to R1.

  1. Choose the blue Console cable from the available connections.
  2. Click PCA and select RS 232.
  3. Drag the cable, click R1 and select Console.
  4. Click PCA > Desktop tab > Terminal.
  5. Click OK and press ENTER. You are now able to configure R1.

Step 2: Enter privileged mode and examine the current configuration.

You can access all the router commands from privileged EXEC mode. However, because many of the privileged commands configure system parameters, privileged access should be password-protected to prevent unauthorized use.

  1. Enter privileged EXEC mode by entering the enable command.
    Router> enable
    Router#
    Notice that the prompt changed in the configuration to reflect privileged EXEC mode.
  2. Enter the show running-config command:
    Router# show running-config
  3. Answer the following questions:
    What is the router’s hostname? __________________________Router
    How many Fast Ethernet interfaces does the Router have?________4
    How many Gigabit Ethernet interfaces does the Router have?______2
    How many Serial interfaces does the router have? ______________2
    What is the range of values shown for the vty lines? _____________0 – 4
  4. Display the current contents of NVRAM.
    Router# show startup-config
    startup-config is not present

    Why does the router respond with the startup-config is not present message?________________________________________________________________________________________________________________________________________________________________________
    It displays this message because the configuration file was not saved to NVRAM. Currently it is only located in RAM.

Part 2: Configure and Verify the Initial Router Configuration

To configure parameters on a router, you may be required to move between various configuration modes. Notice how the prompt changes as you navigate through the router.

Step 1: Configure the initial settings on R1.

Note: If you have difficulty remembering the commands, refer to the content for this topic. The commands are the same as you configured on a switch.

  1. Configure R1 as the hostname.
  2. Configure letmein as the console password and enable login.
  3. Configure itsasecret as the encrypted privileged EXEC password.
  4. Encrypt all plain text passwords.
  5. Configure a message of the day banner that warns against unauthorized access. A sample banner can be Unauthorized access is strictly prohibited.

Step 2: Verify the initial settings on R1.

  1. Verify the initial settings by viewing the configuration for R1. What command do you use?____________________________________________________________________________________
    show running-config
  2. Exit the current console session until you see the following message:
    R1 con0 is now available
    Press RETURN to get started.
  3. Press ENTER; you should see the following message:
    Unauthorized access is strictly prohibited.
    User Access Verification
    Password:
    Why should every router have a message-of-the-day (MOTD) banner?____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
    Every router should have a banner to warn unauthorized users that access is prohibited but can also be used for sending messages to network personnel/technicians (such as impending system shutdowns or who to contact for access).
    If you are not prompted for a password, what console line command did you forget to configure?____________________________________________________________________________________
    R1(config-line)# login
  4. Enter the passwords necessary to return to privileged EXEC mode.
    If you configure any more passwords on the router, are they displayed in the configuration file as plain text or in encrypted form? Explain.
    ________________________________________________________________________________________________________________________________________________________________________
    The service password-encryption command encrypts all current and future passwords.

Part 3: Save the Running Configuration File

Step 1: Save the configuration file to NVRAM.

  1. You have configured the initial settings for R1. Now back up the running configuration file to NVRAM to ensure that the changes made are not lost if the system is rebooted or loses power.
    What command did you enter to save the configuration to NVRAM?____________________________________________________________________________________
    copy running-config startup-config
    What is the shortest, unambiguous version of this command?____________________________________________________________________________________
    copy r s
    Which command displays the contents of the NVRAM?____________________________________________________________________________________
    show startup-configuration or show start
  2. Verify that all of the parameters configured are recorded. If not, analyze the output and determine which commands were not done or were entered incorrectly. You can also click Check Results in the instruction window.

Step 2: Optional bonus: Save the startup configuration file to flash.

Although you will be learning more about managing the flash storage in a router in later chapters, you may be interested to know now that —, as an added backup procedure —, you can save your startup configuration file to flash. By default, the router still loads the startup configuration from NVRAM, but if NVRAM becomes corrupt, you can restore the startup configuration by copying it over from flash.

Complete the following steps to save the startup configuration to flash.

  1. Examine the contents of flash using the show flash command:
    R1# show flash
    How many files are currently stored in flash? 3
    Which of these files would you guess is the IOS image?____________________________________________________________________________________
    c1900-universalk9-mz.SPA.151-4.M4.bin
    Why do you think this file is the IOS image?________________________________________________________________________________________________________________________________________________________________________
    Answers may vary, but two clues are the file length compared to the others and the .bin at the end of the file name
  2. Save the startup configuration file to flash using the following commands:
    R1# copy startup-config flash
    Destination filename [startup-config]

    The router prompts to store the file in flash using the name in brackets. If the answer is yes, then press ENTER; if not, type an appropriate name and press ENTER.
  3. Use the show flash command to verify the startup configuration file is now stored in flash.

Suggested Scoring Rubric

Activity Section Question Location Possible Points Earned Points
Part 1: Verify the Default Router Configuration Step 2c 5
Step 2d 2
Part 1 Total 7
Part 2: Configure and Verify the Initial Router Configuration Step 2a 2
Step 2c 4
Step 2d 2
Part 2 Total 8
Part 3: Save the Running Configuration File Step 1a 6
Step 2a (bonus) 4
Part 3 Total 10
Packet Tracer Score 75
Total Score (with bonus) 100

Script

enable

configure terminal

hostname R1

line con 0

 password letmein

 login

enable secret itsasecret

service password-encryption

banner motd $Unauthorized access is strictly prohibited.$

end

copy running-config startup-config

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