Password Recovery Procedure for the for LANE/MPOA Modules

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Note: It's describing the password recovery procedure for the following Local Area Network Emulation (LANE) and Multiprotocol over Asynchronous Transfer Mode (MPOA) modules:

  • WS-X5161
  • WS-X5162
  • WS-X5165
  • WS-X5167
  • WS-X5168



Step 1: Issue the reset <slot_num>command from supervisor for the LANE/MPOA board.

Step 2: Hit the ESC key within 3 seconds.

Step 3: Choose option 2, the Modify Jumper Configuration menu item.

Step 4: Answer n to all questions until you see the following line : 

     DMON jumper .................Disabled. Want to change (y/n/q/e/d)?

Step 5: Type e to enable debug monitor mode.

Step 6: To extit the menu type q

Step 7: Reset the LANE/MPOA board again from the supervisor.

Step 8: Enter the debug monitor mwl command 

The monitor asks for the start address, count and data. Enter the following data (again, you do not need to press Enter):
   
 DMON:> mwl
 Start Addr? 20000000 
 Count? 0006ffff 
 Data? ffffffff

 This erases the NVRAM configurations.
 Note: The count value should not exceed 6ffff. If you type in the wrong value, you can quit this mwl command at any moment by typing q.



Step 9: Type q or f to debug the monitor. This takes you through the usual boot programmable read-only memory path.

Step 10: Hit the ESC key within 3 seconds.

Step 11: Choose option 2 to disable the debug monitor jumper.

Step 12: Type d to disable the jumper.

Step 13: Type q to quit the menu. 

The LANE/MPOA board boots to the Cisco IOS prompt as usual but it does not have a configuration in NVRAM.
You can now reconfigure it as needed.
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