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Re: Wants to reset 3824 3com switch via console
You forget the password for the "admin" user account and can no longer perform important management operations.
Use the password recovery method outlined below to define a new password for the "admin" user account:
Access the Command Line Interface from the console port and enter the user name "recover" and password "recover" to place the Switch in password recovery mode. The Switch remains in password recovery mode for a maximum of 30 seconds, before it returns to the CLI login prompt.
You must use the console port to recover the passsword. If you attempt the recovery method using the network, the password will be rejected.
Perform a hard reset on the Switch whilst it is in password recovery mode by switching it off, waiting a few seconds, and sWants to reset 3824 3com switch via console - note.gif it on again.
You cannot use a soft reset operation to reset the password of the "admin" user account. This will end the password recovery procedure and return you to the CLI login prompt.
When the Switch has rebooted following the hard reset enter a new password for the "admin" user account.
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Connect the console cable, open a connection to the serial port via a utility such as PuTTY, and do the following: 1) Enter the user name "recover" and password "recover" to place your unit in password recovery mode. The unit will remain in password recovery mode for 30 seconds max. 2) Perform a hard reset by removing power, waiting 10 seconds, and then re-applying power. 3) Once the switch has rebooted, enter a new password for the "admin" user account. 4) Enter enable to leave password recovery enabled, or enter disable to turn it off. You are now logged in as the default "admin" user. Note: If password recovery has been disabled, the only way to recover access is to return the switch to 3com.
yes, you should be able to connect to the console port using a roll-over cable RJ45-DB9, connect using hyper terminal or similar using the com port settings 9600,8,N,1 You can then configure the switch from the CLI...
Have you set the 'Login' command on the VTY lines in the switch setup and an IP address on the management VLAN to connect to. You also HAVE to have a password enabled on the vty lines in order to connect via telnet.
I haven't worked with these switches but generally settings such as ip address and factory defaults can be set through the Console Interface (CLI). You will need a null-modem cable to access this and a terminal client (Windows Hyperterminal works).
You'll need to obtain a comms lead - connects into the console port of the switch then into an RS232 port on your laptop. Then, you will be able to connect using hyper terminal and you can give the switch an IP address, username, etc. Even a hard-reset won't allow you to configure an IP address as by default it needs to be configured through the lead. Will they not talk without being configured? If you just hard reset them, they should just behave as unmanaged switches.
Download free version of HyperTerminal for Vista : ftp://ftp.hilgraeve.com/htpe/htpe63.exe Make a new connection : connect using COM1 (depends of your configuration) 19 200 bits/sec 8 data bits No parity 1 stop bit No control of flux
And push enter twice to display a "Login:" prompt. Connect using default user/passwords : http://support.3com.com/infodeli/tools/switches/ss3/management/ug/setup.htm#13131