Developers Guide

Whenever I try to install the iDRAC Service Module, it

shows an error message This is not a supported server.

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 Dell’s 12

generation PowerEdge server or later. 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.

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.

U 0 0 0 em1

link-local 0.0.0.0 255.255.255.

U 0 0 0 em1

link-local 0.0.0.0 255.255.255.

U 0 0 0

enp0s20u12

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 169.254.0.1) 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.