Procedure

1. Connect the DB9 female connector of the console cable to the serial port (COM) on the PC, and connect the RJ45 connector to the console port on the device, as shown in Figure 6-11.
   Figure 6-11  Connecting to the device through the console port
   
   
   NOTE:

   If a maintenance terminal (PC) does not have a DB9 serial port, purchase a USB-to-DB9 cable that has a DB9 male connector with nuts. Connect the DB9 female connector of the console cable to the DB9 male connector of the USB-to-DB9 cable, and then connect the USB connector to the USB port of the maintenance terminal.

2. Start the terminal emulation software on the PC. Create a connection, select the port for connection, and set communication parameters. (This section uses the third-party software SecureCRT as an example.)
   1. Click to establish a connection, as shown in Figure 6-12.
      Figure 6-12  Establishing a connection
      

   2. Set the port for connection and communication parameters, as shown in Figure 6-13.

      Select the port for connection. For example, you can view port information in Device Manager in the Windows operating system, and select the port for connection.

      Communication parameters of the terminal emulation software must be consistent with the default attribute settings of the console user interface on the device, which are 9600 bit/s baud rate, 8 data bits, 1 stop bit, no parity check, and no flow control.

      NOTE:

      By default, no flow control mode is configured on the device. Because RTS/CTS is selected in the software by default, you need to deselect RTS/CTS; otherwise, you cannot enter commands.

      Figure 6-13  Setting the port for connection and communication parameters
      

3. Click Connect. The following information will be displayed, prompting you to enter the user name and password. (In password authentication, the system prompts you to enter the password. The following output is only for reference.)

   Login authentication
   
   
   Username:admin 
   Password: 
   <HUAWEI>         

   NOTE:

   If you configure the console user interface after login through the console port, the configuration takes effect at your next login.

4. Change the user name and password for AAA authentication in the console user interface.

   <HUAWEI> system-view
   [HUAWEI] sysname Switch
   [Switch] user-interface console 0
   [Switch-ui-console0] authentication-mode aaa
   [Switch-ui-console0] quit
   [Switch] aaa
   [Switch-aaa] undo local-user admin    //Delete the local user whose name is admin
   [Switch-aaa] local-user admin123 password irreversible-cipher abcd@123    //Set the login password of the local account admin123 to abcd@123
   [Switch-aaa] local-user admin123 privilege level 15
   [Switch-aaa] local-user admin123 service-type terminal

   When logging in to the device again through the console port after completing the preceding configuration, enter the user name admin123 and password abcd@123 to pass identity authentication and log in to the device successfully.