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Accessing the IMM2 using the LAN over USB interface
Unlike a baseboard management controller, the IMM2 does not require IPMI device
drivers or USB daemons for in-band IMM2 communication. Instead, a LAN over
USB interface enables in-band communication to the IMM2; the IMM2 hardware
on the system board presents an internal Ethernet interface from the IMM2 to the
operating system. LAN over USB is also called the USB in-band interface in the
IMM2 web interface.
The following table shows the IP addresses for the IMM2 and the host.
Table 3. LAN over USB addresses
IMM2 IP subnet
IMM2 IP address
mask
169.265.95.118
255.255.255.0
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 http://www.ibm.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. IBM 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.
Procedure
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.
48
IBM Flex System x440 Compute Node Types 7917 and 2584: Installation and Service Guide
Host address
169.254.95.120
1. Obtain a Windows version of the server or compute node UEFI code package
(see "Updating firmware and device drivers" on page 23 for more
information).
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.
Host subnet
Host subnet
mask
169.254.95.0/24
255.255.255.0
Keyboard
Controller
Style (KCS)
address
0x8C80
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Troubleshooting
