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The SFO router has several banners configured. You've configured a console password of `cisco`. The login banner displays before the login prompt, and the EXEC banner displays immediately after a successful login.

In this lab, your task is to modify the current configuration as follows:

1. Change the banner that shows before the login prompt to:
```
Please enter the administrator password:
```
(do not include a hard return in the banner text)

2. Delete the banner that displays after a successful login.

3. Save your changes to the startup-config file.

Before you end the lab, type `exit` in user or privileged mode and log back on to the router to test your configuration.

Answer :

Test the configuration by logging back on to the router. You should see the modified login banner prompting for the administrator password. you can modify the login banner, delete the EXEC banner, and save the changes to the startup configuration on the SFO router.

To modify the SFO router's configuration as instructed, follow these steps:

Access the router's configuration mode by entering privileged EXEC mode:

enable

Enter global configuration mode:

configure terminal

Change the banner that shows before the login prompt by entering the following command:

banner login #

Please enter the administrator password:

#

This command sets the login banner to display the specified message before the login prompt. The "#" character is used as a delimiter, so it should not appear within the banner message.

Delete the banner that displays after a successful login by entering the following command:

no banner exec

This command removes the existing EXEC banner that displays after a successful login.

Save your changes to the startup-config file by entering the following command:

copy running-config startup-config

This command copies the current running configuration to the startup configuration, ensuring that the changes are saved.

Exit the configuration mode and log out of the router:

exit

Test the configuration by logging back on to the router. You should see the modified login banner prompting for the administrator password.

By following these steps, you can modify the login banner, delete the EXEC banner, and save the changes to the startup configuration on the SFO router.

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Final answer:

To modify the router's banners, go into global configuration mode, change the login banner with 'banner login' and remove the EXEC banner with 'no banner exec'. Save changes using 'copy running-config startup-config' and then exit with the 'exit' command.

Explanation:

In order to modify the banner messages and the configuration of the router, the following steps should be taken:

  1. Log into the router's console using the current password.
  2. Once you are in privileged mode, you need to go into global configuration mode using the command: configure terminal.
  3. To change the login banner, use the command: banner login "Please enter the administrator password:". There is no need for a hard return in the banner message so make sure to not hit 'Enter' until the entire banner message is input.
  4. To remove the EXEC banner, you need to use the command: no banner exec. This command will delete the current EXEC banner.
  5. To save the current configuration and changes to the startup-config file, use the command: copy running-config startup-config.
  6. Finally, you can exit the session using the command: exit, and then re-log into the router to ensure your changes were successful.

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