Configuring The Lan Over Usb Interface - Lenovo Flex System x440 Compute Node Installation And Service Manual

• Take down the interface (run ifdown under Linux).
• Remove the device driver (run rmmod under Linux).
• Disable the LAN over USB interface from the CMM web interface.
Note: You cannot update the firmware for a compute node while the LAN over USB interface is disabled.
Before updating the firmware, you must re-enable the interface. After updating the firmware, you can
disable the interface again.
To disable the LAN over USB interface from the CMM web interface, complete the following steps.
1. Log in to the CMM web interface.
2. From the CMM web interface homepage click Chassis Management ➙ Compute Nodes.
3. Click the compute node ID.
4. Click the General tab.
5. Uncheck Enable Ethernet Over USB to disable the LAN over USB interface.

Configuring the LAN over USB interface

An IMM2 must be configured to use the LAN over USB interface. The firmware update package or Advanced
Settings Utility attempts to perform the setup automatically, if needed. If the automatic setup fails or if you
prefer to set up the LAN over USB manually, use one of the following processes.
For more information about LAN over USB configuration on different operating systems, see
com/support/entry/ portal/docdisplay?lndocid=MIGR-5083207.
Installing the LAN over USB Windows device driver
When you install a Windows operating system, there will be an unknown RNDIS device in the Device
Manager. Lenovo provides a Windows INF file that identifies this device. The signed version of the INF file is
included in all of the Windows versions of the IMM2, UEFI, and DSA update packages. Complete the
following steps to install ibm_rndis_server_os.inf.
To install the LAN over USB device driver for Windows, complete the following steps.
Note: You only have to perform these steps if the compute node is running a Windows operating system
and the ibm_rndis_server_os.inf file has not been previously installed. The file only has to be installed once. It
is required by Windows operating systems to detect and use the LAN over USB functionality.
Step 1. Obtain a Windows version of the server or compute node UEFI code package (see
firmware and device drivers" on page 25
Step 2. Extract the ibm_rndis_server_os.inf and device.cat files from the firmware update package and
copy them to the \WINDOWS\inf subdirectory.
Note: You can use the -x path command-line interface option to extract the files. For more
information about this option, see the readme file that comes with the update package.
Step 3. (Windows 2003) Install the ibm_rndis_server_os.inf file by right-clicking the file and clicking Install.
This generates a PNF file of the same name in \WINDOWS\inf.
(Windows 2008) Click Computer Management ➙ Device Manager and find the RNDIS Device.
Click Properties ➙ Driver ➙ Reinstall driver. Point the server or compute node to the \Windows
\inf directory where it can find the ibm_rndis_server_os.inf file and install the device.
Click Computer Management ➙ Device Manager. Right-click Network adapters and select
Step 4.
Scan for hardware changes. A small pop-up confirms that the Ethernet device is found and
installed. The New Hardware Wizard starts automatically.
for more information).
http://www.ibm.
"Updating
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Chapter 4 Accessing the IMM2
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