Lan functions, Overview, Setting up the ethernet channel – Kontron AM4010 User Manual

Page 31: Setup by bios menu, Setup by ipmitool or ipmi commands, Setup of user and password, Ipmi firmware user guide: am4010

IPMI Firmware User Guide: AM4010

6.12 LAN functions

6.12.1 Overview

The two Ethernet channels which reside on port 0 (channel 0) and port 1 (channel 1) at the
AMC Fabric Interface can – in parallel to their ‘normal’ use - be used for the following
special purposes:

• IPMI over LAN (IOL)

• Serial over LAN

Common for both kinds of communication is the use of the RMCP/RMCP+ for the packing of
the data to be transferred. On Ethernet the port 623 is used for transfers with this protocol.

While IOL serves to transport IPMI commands and their responses the SOL serves to
transport any serial data. In each case the MMC serves as a protocol encoder and decoder.
Please note that IOL is able to use both RMCP and RMCP+ protocols. SOL works only with
the RMCP+ protocol.

6.12.2 Setting up the Ethernet channel

There are two methods to prepare the MMC’s SOL and IOL LAN parameters for the two
possible Ethernet channels:

• During the BIOS setup
• By use of the open tool ‘ipmitool’ or IPMI commands

The setup methods are compatible i.e. both methods show the parameters which are set by the
other one.

The setup is separate for both channels. When the MAC addresses are set the ones which are
programmed into the hardware have to be re-used. This is a restriction. The IP addresses
being used by ‘normal’ payload use and IOL/SOL use may differ but need not differ as long
as the RMCP port 623 is not used in parallel.

6.12.2.1 Setup by BIOS menu

The BIOS setup menu “Advanced>IPMI 1.5 Configuration>Set LAN Configuration” offers
the setting of some LAN parameters for both channels (1, 2). After this setup IOL is not yet
ready for use. Refer to 6.12.2.2, Setup by ipmitool or IPMI commands.

6.12.2.2 Setup by ipmitool or IPMI commands

The open tool ipmitool offers commands for the setup of the two Ethernet channels. All
possible options are showed by issuing

ipmitool

lan

set

If ipmitool is not usable the LAN parameters can be set by using the generic IPMI commands
which are defined for this.

To enable the LAN support after parameter setup this command has to be issued:

ipmitool lan set access on

6.12.3 Setup of user and password

The open tool ipmitool offers commands for the listing and manipulation of user accounts for
channel 1 and 2. An overview can be obtained by putting in

ID: 36363, Rev. 1.1

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