Users Guide

CMC and iDRACs are now available on the network. You can access the CMC on the assigned IP address using the Web
interface or CLIs such as a serial console, Telnet, and SSH.
NOTE: After you have completed network set up through the LCD Configuration Wizard, the Wizard is no longer
available.
Interfaces and Protocols to Access CMC
After you have configured CMC network settings, you can remotely access CMC using various interfaces. The following table
lists the interfaces that you can use to remotely access CMC.
NOTE: Since telnet is not as secure as the other interfaces, it is disabled by default. Enable Telnet using Web, ssh, or
remote RACADM.
NOTE: Using more than one interface at the same time may generate unexpected results.
Table 8. CMC Interfaces
Interface Description
Web interface Provides remote access to CMC using a graphical user interface. The Web interface
is built into the CMC firmware and is accessed through the NIC interface from a
supported Web browser on the management station.
For a list of supported Web browsers, see the Supported Browsers section in the
Chassis Management Controller Version 5.0 Release Notes at dell.com/support/
manuals.
Remote RACADM command line
interface
Use this command line utility to manage CMC and its components. You can use remote
or firmware RACADM:
● Remote RACADM is a client utility that runs on a management station. It uses the
out-of-band network interface to run RACADM commands on the managed system
and uses the HTTPs channel. The –r option runs the RACADM command over a
network.
● Firmware RACADM is accessible by logging in to CMC using SSH or telnet. You can
run the firmware RACADM commands without specifying the CMC IP, user name, or
password. After you enter the RACADM prompt, you can directly run the commands
without the racadm prefix.
Chassis LCD Panel Use the LCD on the front panel to:
● View alerts, CMC IP or MAC address, user programmable strings.
● Set DHCP
● Configure CMC static IP settings.
● View CMC MAC address for the active CMC.
● View the CMC VLAN ID appended to the end of CMC IP, if the VLAN is already
configured.
Telnet Provides command line access to CMC through the network. The RACADM command
line interface and the connect command, which is used to connect to the serial console
of a server or IO module, are available from the CMC command line.
NOTE: Telnet is not a secure protocol and is disabled by default. Telnet transmits all
data, including passwords in plain text. When transmitting sensitive information, use
the SSH interface.
SSH Use SSH to run RACADM commands. It provides the same capabilities as the Telnet
console using an encrypted transport layer for higher security. The SSH service is
enabled by default on CMC and can be disabled.
WSMan The CMC Services is based on the WS-Management protocol to do one-to-many
systems management tasks. You must use WSMan client such as WinRM client
(Windows) or the Open WSMan client (Linux) to use the CMC Services functionality.
You can also use Power Shell and Python to script to the WSMan interface.
Installing and Setting Up CMC 31