Users Guide

Consult the User Guide for additional information about the

supported servers. What should I do now?

Before installing the iDRAC Service Module, ensure that the server or the system on which the iDRAC Service Module is to be

installed is a yx2x or later server. Also make sure that you have a 64-bit system.

I see the messageThe iDRAC Service Module is unable

to communicate with iDRAC using the OS to iDRAC

Pass-through channel in the OS log, even when the OS

to iDRAC Pass-through over USBNIC is configured

properly. Why do I get this message?

iDRAC Service Module uses the OS to iDRAC Pass-through over USBNIC to establish communication with iDRAC. Sometimes,

the communication is not established though the USBNIC interface is configured with correct IP endpoints. This may happen

when the host OS routing table has multiple entries for the same destination mask and the USBNIC destination is not listed as

the first one in routing order.

Table 14. Details

Destination Gateway Genmask Flags Metric Ref Use Iface

default 10.94.148.1 0.0.0.0 UG 1024 0 0 em1

10.94.148.0 0.0.0.0 255.255.255.0 U 0 0 0 em1

link-local 0.0.0.0 255.255.255.0 U 0 0 0 em1

link-local 0.0.0.0 255.255.255.0 U 0 0 0 enp0s20u12u3

In the example enp0s20u12u3 is the USBNIC interface. The link-local destination mask is repeated and the USBNIC is not the

first one in order. This results in the connectivity issue between iDRAC Service Module and iDRAC over the OS to iDRAC Pass-

through. To troubleshoot the connectivity issue, you can perform one of the following steps:

Ensure that the iDRAC USBNIC IPv4 address (by default it’s 169.254.1.1) is reachable from the host OS. If not:

● Change the iDRAC USBNIC address on a unique destination mask.

● Delete the unwanted entries from the routing table to ensure USBNIC is chosen by route when the host wants to reach the

iDRAC USBNIC IPv4 address.

Whenever I try to install the iDRAC Service Module, an error

message This operating system is not supported is

displayed.

The iDRAC Service Module can be installed only on the supported operating systems. For information on operating systems that

are supported, see Supported operating systems.

Frequently asked questions