Users Guide

Table Of Contents
If you are configuring the server using a Server Configuration Profile through RACADM, WSMan or Redfish and if the network
settings are changed in this file, then you must wait for 15 seconds to either enable OS to iDRAC Pass-through feature or set
the OS Host IP address.
Before enabling OS to iDRAC Pass-through, make sure that:
iDRAC is configured to use dedicated NIC or shared mode (that is, NIC selection is assigned to one of the LOMs).
Host operating system and iDRAC are in the same subnet and same VLAN.
Host operating system IP address is configured.
A card that supports OS to iDRAC Pass-through capability is installed.
You have the Configure privilege.
When you enable this feature:
In shared mode, the host operating system's IP address is used.
In dedicated mode, you must provide a valid IP address of the host operating system. If more than one LOM is active, enter
the first LOMs IP address.
If the OS to iDRAC Pass-through feature does not work after it is enabled, ensure that you check the following:
The iDRAC dedicated NIC cable is connected properly.
At least one LOM is active.
NOTE: Use the default IP address. Ensure that the IP address of the USB NIC interface is not in the same network subnet
as the iDRAC or host OS IP addresses. If this IP address conflicts with an IP address of other interfaces of the host system
or the local network, you must change it.
NOTE: If you launch iDRAC Service Module while USB NIC is in disabled state, the iDRAC Service Module changes the USB
NIC IP address to 169.254.0.1.
NOTE: Do not use 169.254.0.3 and 169.254.0.4 IP addresses. These IP addresses are reserved for the USB NIC port on the
front panel when an A/A cable is used.
NOTE: iDRAC may not be accessible from the host server using LOM-Passthrough when NIC teaming is enabled. Then,
iDRAC can be accessed from the host server OS using the iDRAC USB NIC or through the external network, via the iDRAC
dedicated NIC.
Supported cards for OS to iDRAC Pass-through
The following table provides a list of cards that support the OS to iDRAC Pass-through feature using LOM.
Table 15. OS to iDRAC Pass-through using LOM supported cards
Category Manufacturer Type
NDC Broadcom
5720 QP rNDC 1G BASE-T
Intel
x520/i350 QP rNDC 1G BASE-T
In-built LOM cards also support the OS to iDRAC pass-through feature.
Supported operating systems for USB NIC
The operating systems supported for USB NIC are:
Server 2012 R2 Foundation Edition
Server 2012 R2 Essentials Edition
Server 2012 R2 Standard Edition
Server 2012 R2 Datacenter Edition
Server 2012 for Embedded Systems (Base and R2 w/ SP1)
Server 2016 Essentials Edition
Server 2016 Standard Edition
Server 2016 Datacenter Edition
RHEL 7.3
RHEL 6.9
104
Configuring iDRAC