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Command line interface 11
The following SSH clients are supported:
• SSH 3.0.1 for Linux (freeware)
• SecureCRT® 4.1.8 (VanDyke Technologies, Inc.)
• OpenSSH_3.9 for Linux (FC 3)
• FedoraCore 3 for SCP commands
• PuTTY Release 0.58 (Simon Tatham) for Windows
NOTE: The switch implementation of SSH is based on versions 1.5 and 2.0, and supports SSH
clients from version 1.0 through version 2.0. SSH clients of other versions are not supported. You
may configure the client software to use protocol SSH version 1 or version 2.
By default, SSH service is not enabled on the switch. Once the IP parameters are configured, you can
access the command line interface to enable SSH.
To establish an SSH connection with the switch, run the SSH program on the workstation by issuing
the ssh command, followed by the user account name and the switch IP address:
>> # ssh <user>@<10Gb switch IP address>
You will then be prompted to enter your password.
NOTE: The first time you run SSH from the workstation, a warning message might appear. At the
prompt, enter yes to continue.
Accessing the switch
To enable better switch management and user accountability, the switch provides different levels or
classes of user access. Levels of access to the CLI and Web management functions and screens
increase as needed to perform various switch management tasks. The three levels of access are:
• User—User interaction with the switch is completely passive; nothing can be changed on the
switch. Users may display information that has no security or privacy implications, such as switch
statistics and current operational state information.
• Operator—Operators can only effect temporary changes on the switch. These changes will be
lost when the switch is rebooted/reset. Operators have access to the switch management
features used for daily switch operations. Because any changes an operator makes are undone
by a reset of the switch, operators cannot severely impact switch operation, but do have access
to the Maintenance menu.
• Administrator—Only administrators can make permanent changes to the switch configuration,
changes that are persistent across a reboot/reset of the switch. Administrators can access switch
functions to configure and troubleshoot problems on the switch. Because administrators can also
make temporary (operator-level) changes as well, they must be aware of the interactions
between temporary and permanent changes.
Access to switch functions is controlled through the use of unique usernames and passwords. Once
you are connected to the switch via the local console, Telnet, or SSH, you are prompted to enter a
password. The password entered determines the access level. The default user names/password for
each access level is listed in the following table.
NOTE: It is recommended that you change default switch passwords after initial configuration and
as regularly as required under your network security policies. For more information, see the “Setting
passwords” section in the “First-time configuration” chapter.