SN-L-Series-2200 and SN-L-Series-3200

Enabling Secure Boot in the SNS firewall’s UEFI

1. Connect the computer to the SNS firewall using the USB-A to USB-C cable. You can also connect the computer to the SNS firewall by using the RJ45 to RS232 serial cable.

2. Open the terminal emulator and enter the serial port and baud rate (115200).

3. Start the SNS firewall and immediately press [Del] several times to stop the SNS firewall startup sequence.

4. Go to the Security tab by using the arrow keys.

   

5. Select Secure Boot and press [Enter].

6. Change the status of the Secure Boot parameter to Enabled.

   

7. Press [Esc] and go to the Save & Exit tab.

8. Select Save Changes and Reset and press [Enter].

9. In the Save & Reset window, select Yes then press [Enter].

   

Disabling Secure Boot in the SNS firewall’s UEFI

1. Connect the computer to the SNS firewall using the USB-A to USB-C cable. You can also connect the computer to the SNS firewall by using the RJ45 to RS232 serial cable.

2. Open the terminal emulator and enter the serial port and baud rate (115200).

3. Start the SNS firewall and immediately press [Del] several times to stop the SNS firewall startup sequence.

4. Go to the Security tab by using the arrow keys.

   

5. Select Secure Boot and press [Enter].

6. Change the status of the Secure Boot parameter to Disabled.

7. Change the status of the Secure Boot Mode parameter to Custom.

   

8. Press [Esc] and go to the Save & Exit tab.

9. Select Save Changes and Reset and press [Enter].

10. In the Save & Reset window, select Yes then press [Enter].