The Controllers should be running minimum AOS: 6.5.x or above
Starting from AOS: 6.5.x a new feature "Disable Console Access" has been introduced. The purpose of this command is to introduce an ability to lock down all console ports, for example, micro USB, mini USB on the controller to enable high level security.
With this feature only console access over serial port, USB, and mini USB will be blocked. SSH/ telnet are still allowed.
(Aruba-Master) #configure terminal Enter Configuration commands, one per line. End with CNTL/Z (Aruba-Master) (config) #mgmt-user console-block PLEASE SAVE THE CONFIGURATION. CONSOLE WILL BE BLOCKED ONCE USER LOGS OUT FROM SERIAL-CONSOLE.
(Aruba-Master) #configure terminal Enter Configuration commands, one per line. End with CNTL/Z (Aruba-Master) (config) #no mgmt-user console-block
The following command shows the status of the console access if is "Blocked or Unblocked"
(Aruba-Master7240) #show mgmt-user console Serial Console Access: Blocked
When we try to console in to controller when Console Access is enabled:
User: admin Password: ******** Console access blocked User: