Software Upgrades

1.  TFTP

Procedures for performing a TFTP Flash Load to upgrade the operating software of the router:

  1. Backup your existing configuration of the router before starting the upgrade firmware procedure on the router.
  2. Execute the Network (TFTP) command from the Load FLASH Set-Up menu.
  3. Enter "none" to connect locally or enter the remote site ID number or alias to connect to a remote site.
  4. Start the TFTP application to be used for transfers to the router. The IP address of the router may be found in the Internet Set-Up menu.).
  5. Put the file "###.all" for this router from the Operational/Boot Code directory on the CD-ROM to the router. (Any router not in Network Load BOOT mode will respond with an access violation error.)
  6. The router will verify the file "###.all" in memory, program and verify the FLASH, clear the configuration to default values (except: IP Address, IP Routing state, IP Forwarding state, WAN Environment, Link 1 & 2 State, Password and connection data for the remote site, if applicable), and then reset. After the reset, the router will operate normally using the newly upgraded software.
  7. Reload your backed up configuration to restore the router previous configured environment.

The router may take up to two (2) minutes to program and verify the FLASH. The console will not respond during this time. To check on the router's current state during this process, get the file "status.txt" from the router. This file will report the router's state: both the mode and version if no errors have occurred, or an error message. On the rare occasion that during the programming of the FLASH something happens to the router (power hit or hardware reset), causing the FLASH to become corrupted, the router will restart in ZMODEM receive mode only. If the router does not start in ZMODEM receive mode, refer to Appendix D: Servicing Information.

The TFTP Load Flash operation may be aborted by re-connecting to the console of the router and choosing the Abort Load option from the Load FLASH Set-Up menu. This will cause the router to reset and return to normal operations operating from the existing software.


 

2.  ZMODEM

 

Procedures for performing a Console ZMODEM flash Load to upgrade the operating software of the router:

 

1.         Save the current configuration of the router.

2.         Execute the Console (ZMODEM) command from the Load Flash Set-Up Menu.

3.            Confirmation is required.  Enter “yes” to proceed.

4.         The router will be in receive ZMODEM mode.  The router will display the following messages on the console port:

 

                 System                                                           startup

         Receiving                                   ZMODEM                   

          **B0100000023be50

 

5.         Start the ZMODEM transfer and send the “#####.all” to the router.

6.         Once the ZMODEM transfer is complete, the router will verify the file “#####.all” in memory, program and verify the FLASH, clear the configuration to default values (except the password), and then reset.  After the reset, the router will operate normally using the newly upgraded software.  A byte status message will be displayed on the console port during the programming of the FLASH.

7.         Reload your backed up configuration to restore the router’s previous configured environment.

 

On the rare occasion that during the programming of the FLASH something happens to the router (power hit or hardware reset), causing the FLASH to become corrupted, the router will restart in ZMODEM receive mode only. If the router does not start in ZMODEM receive mode, refer to Appendix D: Servicing Information.

 

The ZMODEM Load Flash operation may be aborted by aborting the ZMODEM transfer and then entering 5 control-X characters “^X” from the console keyboard.  After the control-X characters are sent, the router will display a limited menu system.  Choose the Abort Load option from the Load FLASH Set-Up menu.  This will cause the router to reset and return to normal operations operating from the existing software.

 

If the ZMODEM transfer operation needs to be restarted after it has been canceled, simply choose the Console (ZMODEM) option from the Load FLASH Set-Up menu once again. 

 

Considerations:

When the router is placed in Console load BOOT mode, the LAN and the WAN interface will be disabled.  The router will only accept information from the console management port.