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.
Interfaces and Protocols to Access CMC
After you have congured the 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: Telnet is not as secure as the other interfaces, hence it is disabled by default. Enable Telnet by using web, SSH, or remote
RACADM.
NOTE: Using more than one interface at the same time may generate unexpected results.
Table 10. CMC Interfaces
Interface Description
Web interface Provides remote access to CMC using a graphical user interface. The Web interface is built into
the CMC rmware 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 Dell System
Software Support Matrix 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
rmware 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
rmware 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 prex.
Chassis LCD Panel Use the LCD on the front panel to:
• View alerts and CMC IP.
• Set DHCP.
• Congure 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 congured.
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 WSMan Services are based on the Web Services for Management (WSMan) protocol to
perform one-to-many systems management tasks. You must use WSMan client such as WinRM
client (Windows) or the OpenWSMan client (Linux) to use the CMC Services functionality. You
can also use Power Shell and Python script the WSMan interface.
WSMan is a Simple Object Access Protocol (SOAP)–based protocol used for systems
management. CMC uses WS–Management to convey Distributed Management Task Force
Installing and Setting Up CMC 35