USB-Cascading Solution
Guide

Release 3.1

Copyright © 2015 Raritan, Inc.
USBcascade-0D-v3.1-E
March 2015255-80-0012-00 RoHSSafety Guidelines
WARNING! Read and understand all sections in this guide before installing or operating this product.
WARNING! Connect this product to an AC power source whose voltage is within the range specified
on the product's nameplate. Operating this product outside the nameplate voltage range may result inelectric shock, fire, personal injury and death.
WARNING! Connect this product to an AC power source that is current limited by a suitably rated
fuse or circuit breaker in accordance with national and local electrical codes. Operating this productwithout proper current limiting may result in electric shock, fire, personal injury and death.
WARNING! Connect this product to a protective earth ground. Never use a "ground lift adaptor"
between the product's plug and the wall receptacle. Failure to connect to a protective earth groundmay result in electric shock, fire, personal injury and death.
WARNING! This product contains no user serviceable parts. Do not open, alter or disassemble thisproduct. All servicing must be performed by qualified personnel. Disconnect power before servicing
this product. Failure to comply with this warning may result in electric shock, personal injury anddeath.
WARNING! Use this product in a dry location. Failure to use this product in a dry location may resultin electric shock, personal injury and death.
WARNING! Do not rely on this product's receptacle lamps, receptacle relay switches or any otherreceptacle power on/off indicator to determine whether power is being supplied to a receptacle.
Unplug a device connected to this product before performing repair, maintenance or service on thedevice. Failure to unplug a device before servicing it may result in electric shock, fire, personal injury
and death.
WARNING! Only use this product to power information technology equipment that has a UL/IEC
60950-1 or equivalent rating. Attempting to power non-rated devices may result in electric shock, fire,
personal injury and death.
WARNING! Do not use a Raritan product containing outlet relays to power large inductive loads suchas motors or compressors. Attempting to power a large inductive load may result in damage to therelay.
WARNING! Do not use this product to power critical patient care equipment, fire or smoke alarmsystems. Use of this product to power such equipment may result in personal injury and death.
WARNING! If this product is a model that requires assembly of its line cord or plug, all such assemblymust be performed by a licensed electrician and the line cord or plugs used must be suitably rated
based on the product's nameplate ratings and national and local electrical codes. Assembly byunlicensed electricians or failure to use suitably rated line cords or plugs may result in electric shock,fire, personal injury or death.
WARNING! This product contains a chemical known to the State of California to cause cancer, birthdefects, or other reproductive harm.

Safety Instructions
1. Installation of this product should only be performed by a person who has knowledge andexperience with electric power.
2. Make sure the line cord is disconnected from power before physically mounting or moving thelocation of this product.
3. This product is designed to be used within an electronic equipment rack. The metal case of thisproduct is electrically bonded to the line cord ground wire. A threaded grounding point on thecase may be used as an additional means of protectively grounding this product and the rack.
4. Examine the branch circuit receptacle that will supply electric power to this product. Make sure
the receptacle’s power lines, neutral and protective earth ground pins are wired correctly and are
the correct voltage and phase. Make sure the branch circuit receptacle is protected by a suitably
rated fuse or circuit breaker.
5. If the product is a model that contains receptacles that can be switched on/off, electric power may
still be present at a receptacle even when it is switched off.

This document contains proprietary information that is protected by copyright. All rights reserved. Nopart of this document may be photocopied, reproduced, or translated into another language without
express prior written consent of Raritan, Inc.
© Copyright 2015 Raritan, Inc. All third-party software and hardware mentioned in this document areregistered trademarks or trademarks of and are the property of their respective holders.
FCC Information

This equipment has been tested and found to comply with the limits for a Class A digital device,pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference in a commercial installation. This equipment generates, uses, and canradiate radio frequency energy and if not installed and used in accordance with the instructions, maycause harmful interference to radio communications. Operation of this equipment in a residential
environment may cause harmful interference.
VCCI Information (Japan)

Raritan is not responsible for damage to this product resulting from accident, disaster, misuse, abuse,non-Raritan modification of the product, or other events outside of Raritan's reasonable control or notarising under normal operating conditions.
If a power cable is included with this product, it must be used exclusively for this product.

Contents
Safety Guidelines

ii

Safety Instructionsiii

Chapter 1

1Introduction

Hardware Requirements................................................................................................................ 1
Software Requirements ................................................................................................................. 2
Plug and Play................................................................................................................................. 3

Chapter 2

USB-Cascading Applications

4

Appropriate Applications................................................................................................................ 4Best Practices ................................................................................................................................ 6
Inappropriate Applications ............................................................................................................. 6

Chapter 3

USB-Cascading Instructions

7

USB-Cascading Restrictions ......................................................................................................... 7
Cascading Raritan Devices ........................................................................................................... 8
Setting the Cascading Mode........................................................................................................ 10Port Number Syntax .......................................................................................................... 12Port Forwarding Examples ................................................................................................ 13

Chapter 4

Network Access16

Finding the IP Address ................................................................................................................ 16
Local Console .................................................................................................................... 16
MAC Address..................................................................................................................... 17
LCD Display....................................................................................................................... 17
HTTP/HTTPS Access .................................................................................................................. 21
Supported Web Browsers.................................................................................................. 22
Using the Web Browser..................................................................................................... 22vi

Contents

SSH/Telnet Access ...................................................................................................................... 24
SNMP Management..................................................................................................................... 24
SNMP Notifications............................................................................................................ 25
Third-Party SNMP Managers ............................................................................................ 25
Power IQ and dcTrack Management ........................................................................................... 25
Power IQ............................................................................................................................ 26
dcTrack .............................................................................................................................. 26

Chapter 5

Identifying Cascaded Devices

27

Using the Web Interface .............................................................................................................. 27
Using the CLI ............................................................................................................................... 34
Using the SNMP .......................................................................................................................... 36
Using the LCD Display................................................................................................................. 38
Dot-Matrix LCD Display ..................................................................................................... 38
Character LCD Display...................................................................................................... 40

Chapter 6

Appendix A

Updating the Raritan device Firmware

Configuring Network Settings

42

44

Configuration via Web Interface .................................................................................................. 44
Configuration via CLI ................................................................................................................... 45

Appendix B

Accessibility Troubleshooting

51

Possible Root Causes ................................................................................................................. 51
Slave Connection and Disconnection Events.............................................................................. 52
The Ping Tool............................................................................................................................... 52
Using the Web Interface .................................................................................................... 52
Using the CLI ..................................................................................................................... 53vii

Contents

Appendix C

Ethernet Disabled Scenarios on Slave Devices

55

Example 1 .................................................................................................................................... 55
Example 2 .................................................................................................................................... 56

Appendix D

Wireless LAN Information

57

Supported Wireless LAN Configuration ....................................................................................... 57
USB Wireless LAN Adapters ....................................................................................................... 57

Index

viii

59

Chapter 1

Introduction
Raritan provides a USB-cascading solution, which enables multiple
Raritan devices to share the network connectivity after cascading themthrough the USB interface.
The first device in the USB-cascading configuration is the master device
and the other are slave devices.
Each individual device in the USB-cascading configuration can beaccessed and administered over the Internet from anywhere. Therefore,
you can access any device in the chain via the Web, SNMP, SSH, Telnet
or Modbus interface. Besides, each cascaded device can be upgraded
respectively.

In This Chapter
Hardware Requirements............................................................................1
Software Requirements .............................................................................2
Plug and Play ............................................................................................3

Hardware Requirements
Raritan products supporting the USB-cascading feature:

PX2 series power distribution units (PDUs)



PX3 series PDUs

EMX asset management devices

Branch Circuit Monitor (BCM)

PX3TS transfer switch

The USB-cascading configuration comprises either identical or diverse
Raritan products. For example, you can cascade PX2 PDUs only, or you
can cascade PX2, PX3, EMX, PX3TS and BCM devices in theUSB-cascading configuration.
If wireless networking is intended:
A Raritan product with two USB-A ports must be the master device, suchas PX3 or PX3TS. Slave devices can be any Raritan products shown in
the above list. See Cascading Raritan Devices (on page 8) for
information on master and slave devices.

1

Chapter 1: Introduction

Software Requirements
A Raritan device must run an appropriate firmware to support theUSB-cascading feature.
Depending on the firmware version implemented, the maximum numberof cascaded devices that are supported in a USB-cascading
configuration differs.
Firmware versions supporting a maximum of four Raritan
devices:

PX2 series: 2.3.1 or later

PX3 series: 2.5.10 or later

EMX series: 2.1.0 or later

BCM series: 2.3.1 or later

The firmware versions supporting four devices support the network"Bridging" mode only.
Firmware versions supporting a maximum of eight Raritan
devices:

PX2 series: 2.5.20 or later

PX3 series: 2.5.20 or later

EMX series: 2.5.0 or later

BCM series: 2.5.20 or later

PX3TS series: 2.6.0 or later

The firmware versions supporting eight devices support both "Bridging"and "Port Forwarding" modes. See Setting the Cascading Mode (onpage 10).
If the "Port Forwarding" mode is intended, you must upgrade all devices
in the chain to support two cascading modes.
Firmware versions supporting different networking modes:Prior to release 3.1.0, the USB-cascading configuration only
supports connection to the wired LAN.

As of release 3.1.0, the Port Forwarding mode supports connection
to either wired or "wireless" LAN. The "Bridging" mode still supports
connection to the wired LAN only.
Upgrade all devices in the chain to version 3.1.0 or later whenwireless networking is intended.
Note: A Raritan product with two USB-A ports must be the masterdevice, such as PX3 or PX3TS.

2

Chapter 1: Introduction

Check firmware versions before cascading Raritan devices and upgrade
any device as needed. See Updating the Raritan device Firmware (onpage 42).

Plug and PlayThe USB-cascading solution is a plug-and-play function. You can add or
remove a Raritan device from the USB-cascading configuration at any
time, and the shared network connectivity is immediately in effect or lost
based on the USB connection status.

3Chapter 2

USB-Cascading Applications
This chapter illustrates several USB-cascading scenarios using PDUs,
and points out best practices and the condition the USB-cascading
solution should be avoided.

In This Chapter
Appropriate Applications............................................................................4Best Practices............................................................................................6
Inappropriate Applications .........................................................................6

Appropriate Applications
When intending to reduce the number of Ethernet connections or save
networking costs, apply the USB-cascading solution.
In the USB-cascading configuration, all Raritan devices are cascadedusing USB cables and only the first Raritan device in the chain isconnected to the LAN.
The following illustrate a few USB-cascading scenarios using Zero U
PDUs. Red lines in the diagrams represent USB connections.
When your firmware supports up to four cascaded devices:

Scenario 1: Cabinet 1 has four PDUs cascaded, all of which share
one Ethernet connection.

4

Chapter 2: USB-Cascading Applications

When your firmware supports up to eight cascaded devices:

Scenario 2: Cabinet 1 and Cabinet 2 have four PDUs respectively.
The eight PDUs are cascaded, sharing one Ethernet connection.



Scenario 3: Cabinet 1 through Cabinet 4 have two PDUs respectively.
The eight PDUs are cascaded, sharing one Ethernet connection.

5

Chapter 2: USB-Cascading Applications

Best Practices
One Ethernet connection per cabinet is better than one Ethernet
connection across cabinets because of the following advantages:
Easier to manage or maintain one cabinet when all of the cablingand connections are located in the same cabinet.

Reduces the cross-cabinet cabling.

An eight-device cascaded configuration saves the most Ethernet
connections and costs, and it is recommended when:

Ethernet ports are expensive or limited.

Available IPv4 addresses are limited.

Inappropriate Applications
Though the USB-cascading solution helps decrease the Ethernet
connections and costs, there are two scenarios where this solution is
NOT recommended:High network reliability is required:
The USB-cascading solution increases the number of network
bridging points for cascaded devices, which may result in network
unreliability. Therefore, when high network reliability is required,establish a separate Ethernet connection for each Raritan device tominimize the number of potential network failure points.
High bandwidth is required:
The USB bandwidth between the master and the first slave device is
12Mbit/s. Due to this bandwidth limitation, the actual data transfer
rate for all slave devices ranges between 8Mbit/s and 10Mbit/s. Ifhigh bandwidth is required, such as transmission of webcam videos,
directly connect that Raritan device to the network to optimize thedata transfer rate.

6Chapter 3

USB-Cascading Instructions
This chapter describes the USB-cascading limitations, instructions andvarious methods to identify a cascaded Raritan device.
The USB-cascading configuration can operate in either cascading mode-- bridging or port forwarding, as long as it is running appropriate
firmware. See Software Requirements (on page 2).
The first device in the USB-cascading configuration is the master device
and the other are slave devices.

In This Chapter
USB-Cascading Restrictions .....................................................................7
Cascading Raritan Devices .......................................................................8
Setting the Cascading Mode ...................................................................10

USB-Cascading Restrictions
Some restrictions apply regardless of the networking method used with
the USB-cascading configuration, but some restrictions apply only whenconnecting to the wireless LAN.
Common restrictions:All devices in the USB-cascading configuration must be runningappropriate firmware. See Software Requirements (on page 2).



Depending on the firmware version, up to four or eight Raritan
devices can be connected.

Only the master device must be connected to the LAN. Do NOT
connect slave devices to the LAN via a standard network patch cableor a USB wireless LAN adapter.
Note: The Ethernet interface on slave devices is disabled
automatically. See Ethernet Disabled Scenarios on Slave Devices(on page 55).

Appropriate networking methods vary based on the cascading mode.
See Setting the Cascading Mode (on page 10).
The bridging mode supports only the wired networking.

The port forwarding mode supports both the wired and wirelessnetworking.

7

Chapter 3: USB-Cascading Instructions

Your network switch's port security settings must support theUSB-cascading solution. Make sure that packets forwarding isenabled for the Ethernet port where the master device is connected.
Restrictions only for the port forwarding mode over "wireless"LAN:Port forwarding mode over wireless LAN is supported as of release
3.1.0. You must upgrade all devices in the chain to version 3.1.0 or
later if wireless networking is preferred.



You must use the Raritan USB WIFI wireless LAN adapter instead ofother adapters for network connection.

A Raritan product with two USB-A ports must be the master device,
such as PX3 or PX3TS. This is because one USB-A port is used toconnect the USB wireless LAN adapter and the other is to connect aslave device.



No external USB hub is used with the master device.

Cascading Raritan Devices
Only specific types of Raritan products support the USB-cascading
function. See Hardware Requirements (on page 1).
To cascade Raritan devices:
1. Verify that the Raritan devices to be cascaded are runningappropriate firmware versions by choosing Maintenance > Device
Information in the web interface.
If any device is running an inappropriate firmware, upgrade it. See
Updating the Raritan device Firmware (on page 42).
2. Select one of the devices as the master device.
When the port forwarding mode over wireless LAN is intended, aRaritan product with two USB-A ports must be the master device,
such as PX3.

3. Connect the master device to the LAN via:


A standard network patch cable (CAT5e or higher) if the bridging
mode is intended.

A standard network patch cable or a Raritan USB WIFI wireless
LAN adapter if the port forwarding mode is intended. For
information on the Raritan USB WIFI adapter, see USB
Wireless LAN Adapters (on page 57).

For information on cascading modes, see Setting the Cascading
Mode (on page 10).

8

Chapter 3: USB-Cascading Instructions

4. Connect the USB-A port of the master device to the USB-B port ofan additional Raritan device via a USB cable. This additional device
is Slave 1.
5. Connect Slave 1's USB-A port to the USB-B port of an additional
Raritan device via a USB cable. The second additional device is
Slave 2.
6. Repeat the above step to connect more slave devices.
If your firmware supports eight cascaded devices, you may cascade
up to 7 slave devices. See Software Requirements (on page 2).

NumberDevice role
Master device
Slave 1
Slave 29

Chapter 3: USB-Cascading Instructions

NumberDevice role
Slave 3

Setting the Cascading Mode
This section only applies to the firmware versions that support two
cascading modes. See Software Requirements (on page 2).
The Ethernet sharing mode applied to the USB-cascading configurationis either network bridging or port forwarding. This mode is determined by
the master device.
Only the Admin user or a user who has the Administrator Privileges
permission can configure the cascading mode.
To configure the cascading mode via the web interface:
1. Log in to the master device's web interface.
2. Choose Device Settings > USB Cascading. The USB Cascading
Configuration dialog appears.
3. Verify that the "Position in cascaded chain" field shows 0 (Master),indicating that this Raritan device is the master device.
4. Select the preferred cascading mode in the "Cascading mode" field.
Bridging: Each device in the USB-cascading configuration isaccessed with a different IP address. This is the default.

Port Forwarding: Each device in the USB-cascading
configuration is accessed with the same IP address with adifferent port number assigned. The port numbers vary based on
the networking protocol and device position in the chain. See
Port Number Syntax (on page 12).

Note: If reversing or disconnecting the USB cable from a slave
device, causing the slave device to become a master or standalone
device, you must plug an Ethernet cable to it to update its
USB-cascading status.
5. Click OK.
6. If selecting Port Forwarding, a list of port numbers for diverse
networking protocols will be available on the "Protocol to Port
Mapping" tab of each cascaded device.

10

Chapter 3: USB-Cascading Instructions

Return to the same dialog and click the "Protocol to Port Mapping"tab to view the master device's port numbers.

For information on accessing each cascaded device in the Port
Forwarding mode, see Port Forwarding Examples (on page 13).
To configure the cascading mode via the command line
interface (CLI):
1. Log in to the CLI of the master device. To use the SSH or Telnet
service, see SSH/Telnet Access (on page 24).
2. Type config and press Enter to enter the configuration mode.
3. Type the following command to set the cascading mode.
config:#cascading mode <mode>

Variables:<mode> is one of the following cascading modes:
Mode

Description

bridging

The network bridging mode, where eachcascaded device is assigned a unique IP
address.

portForwarding

The port forwarding mode, where every
cascaded device in the chain shares thesame IP address, with diverse port
numbers assigned.

11

Chapter 3: USB-Cascading Instructions

Port Number Syntax
In the Port Forwarding mode, all devices in the USB-cascading
configuration share the same IP address. To access any cascaded
device, you must assign an appropriate port number to it.
Master device: The port number is either 5NNXX or the standard
TCP/UDP port.



Slave device: The port number is 5NNXX.
5NNXX port number syntax:





12

NN is a two-digit number representing the network protocol as shown
below:
Protocols

NN

HTTPS

00

HTTP

01

SSH

02

TELNET

03

SNMP

05

MODBUS

06

XX is a two-digit number representing the device position as shown
below:
PositionXX

Master device

00

Slave 1

01

Slave 202

Slave 303

Slave 404

Slave 505

Slave 606

Slave 707

Chapter 3: USB-Cascading Instructions

For example, to access the Slave 4 device via Modbus/TCP, the port
number is 50604. See Port Forwarding Examples (on page 13) for
further illustrations.
Tip: The full list of each cascaded device's port numbers can be retrieved
from the web interface. See Setting the Cascading Mode (on page 10).
Standard TCP/UDP ports:
The master device can be also accessed through standard TCP/UDP
ports as listed in the following table.
Protocols

Port Numbers

HTTPS

443

HTTP

80

SSH

22

TELNET

23

SNMP

161

MODBUS

502

In the Port Forwarding mode, the Raritan device does NOT allow you tomodify the standard TCP/UDP port configuration, including HTTP,HTTPS, SSH, Telnet, SNMP and Modbus/TCP.
Port Forwarding Examples
To access a cascaded device in the Port Forwarding mode, assign a port
number to the IP address.


Master device: Assign proper 5NNXX port numbers or standard
TCP/UDP ports. See Port Number Syntax (on page 12) for details.



Slave device: Assign proper 5NNXX port numbers.

Assumption: The Port Forwarding mode is applied to a USB-cascading
configuration comprising three Raritan products. The IP address is
192.168.84.77.
Master device:
Position code for the master device is 00 so each port number is 5NN00
as shown below.
Protocols

Port numbers

HTTPS

50000

HTTP

50100

SSH

50200

13

Chapter 3: USB-Cascading Instructions

Protocols

Port numbers

TELNET

50300

SNMP

50500

MODBUS

50600

Examples using "5NN00" ports:
To access the master device via HTTPS, the IP address is:https://192.168.84.77:50000/



To access the master device via HTTP, the IP address is:
http://192.168.84.77:50100/



To access the master device via SSH, the command is:ssh -p 50200 192.168.84.77

Examples using standard TCP/UDP ports:
To access the master device via HTTPS, the IP address is:https://192.168.84.77:443/

To access the master device via HTTP, the IP address is:
http://192.168.84.77:80/



To access the master device via SSH, the command is:ssh -p 22 192.168.84.77
Slave 1 device:

Position code for Slave 1 is 01 so each port number is 5NN01 as shown
below.
Protocols

Port numbers

HTTPS

50001

HTTP

50101

SSH

50201

TELNET

50301

SNMP

50501

MODBUS

50601

Examples:

To access Slave 1 via HTTPS, the IP address is:https://192.168.84.77:50001/

14

Chapter 3: USB-Cascading Instructions

To access Slave 1 via HTTP, the IP address is:
http://192.168.84.77:50101/



To access Slave 1 via SSH, the command is:ssh -p 50201 192.168.84.77
Slave 2 device:

Position code for Slave 2 is 02 so each port number is 5NN02 as shown
below.
Protocols

Port numbers

HTTPS

50002

HTTP

50102

SSH

50202

TELNET

50302

SNMP

50502

MODBUS

50602

Examples:

To access Slave 2 via HTTPS, the IP address is:https://192.168.84.77:50002/



To access Slave 2 via HTTP, the IP address is:
http://192.168.84.77:50102/



To access Slave 2 via SSH, the command is:ssh -p 50202 192.168.84.77

15

Chapter 4

Network Access
The master device functions as the network bridge and can transmit IP
packets between the LAN and all slave devices connected to it.
Therefore, you can remotely access the master and every slave device
via the Web, SNMP, SSH, or Telnet interface, or manage them via
Raritan's Power IQ or dcTrack™.

In This Chapter
Finding the IP Address ............................................................................16
HTTP/HTTPS Access..............................................................................21
SSH/Telnet Access..................................................................................24
SNMP Management ................................................................................24
Power IQ and dcTrack Management.......................................................25

Finding the IP Address
There are various ways to retrieve the IP address of a Raritan device.


Access the local console.



Use the device's MAC address and common networking tools.



Operate the front panel LCD display if the Raritan device is a PX3,
PX3TS, BCM or EMX device.

Local Console
The IP address of the master or slave device is available in eachdevice's local console, which uses the command line interface.
To access the local console, first connect the desired Raritan device tothe computer using a serial RS-232 cable, and then use a terminal
emulation program on the computer to access it.
You can also access a master device's local console via a USB
connection. For details, see the Quick Setup Guide, Online Help or User
Guide, which can be downloaded from Raritan website's Support page(http://www.raritan.com/support/).
You can use any terminal emulation programs for local access to thecommand line interface.
This section illustrates HyperTerminal, which is part of Windows
operating systems prior to Windows Vista.
To get the IP address using HyperTerminal:
1. Connect your computer to the Raritan device via a local connection.

16

Chapter 4: Network Access

2. Launch HyperTerminal on your computer and open a console
window. When the window first opens, it is blank.
Make sure the COM port settings use this configuration:
Bits per second = 115200 (115.2Kbps)



Data bits = 8

Stop bits = 1

Parity = None

Flow control = None

3. In the communications program, press Enter to send a carriage
return to the Raritan device. Now you should see the Raritan
device's IP address displayed in the terminal.
MAC Address
A label is affixed to the Raritan device, showing both the serial number
and MAC address.

If necessary, you can find its IP address through the MAC address byusing commonly-used network tools. Contact your LAN administrator forassistance.
LCD Display
Some Raritan products have a front panel LCD display which can show
the Raritan device's networking information.
Depending on the Raritan product you purchased, the LCD display typevaries.


PX3 phase II models use a dot-matrix LCD display.



PX3 phase I models, EMX and BCM use a character LCD display.

17

Chapter 4: Network Access

Dot-Matrix LCD Display

The dot-matrix LCD display can show both IPv4 and IPv6 networking
information.
Note that the diagrams illustrated in this section are for Zero U models,
and your dot-matrix LCD display may look slightly different if it is on a 1U
or 2U model.
To retrieve the IPv4 and/or IPv6 addresses:
1. If the LCD display is in the Automatic mode, exit it by pressingor. The Main Menu similar to the following is displayed.

2. Press
press

18

or
.

to select "Device Info" in the Main Menu, andChapter 4: Network Access3. Press

Numberuntil IPv4 settings are displayed.

Description
IPv4 network information, including: Network configuration: DHCP or Static. Static represents Static IP.
 IP address.
 Netmask.
 Gateway.
DNS server addresses, including the primary and secondary ones.

If you do not enable IPv4 settings, a message is displayed to indicate
IPv4 is disabled.

19

Chapter 4: Network Access4. Press

Numberagain to display IPv6 settings.

Description
IPv6 network information, including: Network configuration: Automatic or Static.
 IP address(es).
DNS server address(es).

If you do not enable IPv6 settings, a message is displayed to indicate
IPv6 is disabled.
Character LCD Display

The IP address is available in the Device mode, which is indicated by thealphabet 'd' shown at the top of the LCD display. Note that the LCD
display only shows the IPv4 address (if available).
Below illustrates the IP address information shown on the LCD display.

20

Chapter 4: Network Access

SectionExample information"d" means the LCD display has entered the Device
mode.
The LCD display is showing 192, which is one of the IP
address octets. It will cycle through four octets of the IP
address.
"i4" indicates that the IP address shown on the LCD
display is an IPv4 address.
The word "MASTER" indicates the Raritan device is themaster device in a USB-cascading configuration. See
Cascading the Raritan device via USB (see"Cascading Raritan Devices" on page 8).
For a standalone Raritan device, this word is NOT
displayed.

If you connect your Raritan device to the wireless network, a Wi-Fi icon
is displayed at the bottom-right corner.

To retrieve the IP address:
1. Press the MODE button until device settings are displayed, indicatedby a 'd' in at the top left of the display.
2. The LCD display cycles between the four octets of the IPv4 address,
indicated by "i4" at the upper right corner of the display.
For example, if the IPv4 address is 192.168.84.4, the LCD display
cycles through it as shown below:
192 --> 168 --> 84 --> 4

HTTP/HTTPS Access
You can remotely access the web interface of any Raritan device in a
USB-cascaded configuration by using a web browser. See Supported
Web Browsers (on page 22) for a list of supported web browsers.

21

Chapter 4: Network Access

Supported Web Browsers
The following web browsers can be used to access a Raritan device’s
web interface. For details, see the online help or User Guide for your
Raritan device.
Internet Explorer®

Firefox®



Safari®



Google® Chrome®



IOS

Using the Web Browser
The web interface allows a maximum of 16 users to log insimultaneously.
You must enable JavaScript in the web browser for proper operation.
To log in to the web interface:
1. Open a browser, such as Microsoft Internet Explorer or Mozilla
Firefox, and type this URL:
http(s)://<ip address>
where <ip address> is the IP address of the Raritan device.

2. If a security alert message appears, click OK or Yes to accept. The
Login page then opens.
3. Type your user name in the User Name field, and password in the
Password field.

Note: Both the user name and password are case sensitive. If
needed, click Clear to clear either the inputs or any error message
that appears.

22Chapter 4: Network Access

4. If a security agreement is displayed on the Login page, accept it. To
select the agreement checkbox using the keyboard, press the Spacebar.
Note: If you do not accept the security agreement, you cannot log in
successfully.
5. Click Login or press Enter. The Raritan device page opens.
Note: Depending on your hardware configuration, elements shownon the web interface may appear slightly different from this image.

Note: The IP address to access a slave device in the port forwarding
mode is a combination of the IP address and the port number. See Port
Forwarding Examples (on page 13).

23

Chapter 4: Network Access

SSH/Telnet Access
All devices in the USB-cascading configuration support the SSH or
Telnet service.
You can remotely log in to the command line interface (CLI) using an
SSH or Telnet client, such as PuTTY.
Note: PuTTY is a free program you can download from the Internet. See
PuTTY's documentation for details on configuration.
To log in using SSH or Telnet:
1. Ensure SSH or Telnet has been enabled. See Modifying Network
Service Settings in the online help.
2. Launch an SSH or Telnet client and open a console window. A login
prompt appears.

3. Type a name and press Enter. The name is case sensitive.
Note: If using the SSH client, the name must NOT exceed 25
characters. Otherwise, the login fails.
Then you are prompted to enter a password.

4. Type a password and press Enter. The password is case sensitive.
5. After properly entering the password, the # or > system prompt
appears. See Different CLI Modes and Prompts in the online help for
more information.
Tip: The "Last Login" information, including the date and time, is also
displayed if the same user profile was used to log in to this product's
web interface or CLI.
You are now logged in to the command line interface and can begin
administering the Raritan device.

SNMP Management
In the USB-cascading configuration, the SNMP capability of each Raritan
device remains unchanged. A cascaded device is able to send SNMP
notifications and communicate with an SNMP manager.

24

Chapter 4: Network Access

SNMP Notifications
A Raritan device in the USB-cascading configuration can send out
SNMP traps or informs to an SNMP destination like a standalone Raritan
device. All you have to do is to configure the SNMP notification setting
on that device. For details, see Configuring SNMP Notifications in the
online help, which is accessible from the application or on the Raritan
website's Support page (http://www.raritan.com/support/).
Third-Party SNMP Managers
A third-party SNMP manager can communicate with any Raritan device
in the USB-cascading configuration. There are no differences made to
the SNMP accessibility no matter the device is a master or slave device.
To allow a Raritan device to communicate with an SNMP manager, youmust enable the SNMP agent implemented on that device and download
the latest SNMP MIB for your SNMP manager. For details, see Enabling
SNMP in the online help, which is accessible from the application or on
the Raritan website's Support page (http://www.raritan.com/support/).

Power IQ and dcTrack Management
Depending on the cascading mode applied, support for theUSB-cascading configuration by Raritan's Power IQ and dcTrack™
applications slightly differs. See Setting the Cascading Mode (on page10) for information on cascading modes.
Bridging mode:
The way to manage a cascaded Raritan device in the bridging mode with
Raritan's Power IQ or dcTrack™ is the same as managing a standalone
device since each cascaded device has a unique IP address.
Port forwarding mode:Power IQ supports the port forwarding mode comprising 2 PDUs asof release 4.3.0.



dcTrack™ manages a cascaded Raritan device in the port forwarding
mode in the same way as managing a standalone device and cancommunicate with them via SNMP.

25

Chapter 4: Network AccessPower IQ
Raritan's Power IQ is a software application that collects and manages
the data from different PDUs installed in your server room or data center.
With this software, you can:Do bulk configuration for multiple PDUsName outlets on different PDUs



Switch on/off outlets on outlet-switching capable PDUs

For more information on Power IQ, see either of the following available
on Raritan's website:Power IQ User Guide: Available on the Support page(http://www.raritan.com/support/).

Power IQ Online Help: Available on the Product Online Help page(http://www.raritan.com/support/online-help/).

dcTrack
Raritan's dcTrack™ is a software application that collects the data of allcomponents implemented in the data center, including power andnon-power items, and then administers and maintains the data center
efficiently after the data center building is completed in dcTrack.
Each Raritan device in the USB-cascading configuration can be added to
dcTrack, and communicate with dcTrack via SNMP respectively.
For more information on dcTrack, see the online help accessible from thedcTrack application.

26

Chapter 5

Identifying Cascaded Devices
You can retrieve a device's USB-cascading status from one of theseinterfaces:

Web interface: Accessible via HTTP or HTTPS.



Command line interface (CLI): Accessible via SSH, Telnet or theserial interface.



SNMP: An SNMP manager is required.



LCD display: Use the front panel LCD display if your Raritan device
has it.

Before remotely accessing a Raritan device, you need to get its IP
address. See Finding the IP Address (on page 16).

In This Chapter
Using the Web Interface ..........................................................................27
Using the CLI...........................................................................................34
Using the SNMP ......................................................................................36
Using the LCD Display ............................................................................38

Using the Web Interface
This section explains how to identify a cascaded device through the webinterface.
The web interface differs depending on your firmware versions. See
Software Requirements (on page 2) for information on different
firmware versions.
When your firmware supports two cascading modes:
1. Log in to the desired Raritan device using a supported web browser.
See HTTP/HTTPS Access (on page 21).
2. Choose Maintenance > Device Information. The Device Information
dialog appears.
3. Select the Network tab and locate the Interface section. The
Interface section contains four read-only fields as listed below.

27

Chapter 5: Identifying Cascaded Devices

FieldsDescription

Networking Mode Indicates how the Raritan device is connected to
the LAN.
 Wired: The device is connected to the LAN
through a standard network cable.
 Wireless: The device is connected to the LAN
through a supported USB wireless LAN
adapter. See USB Wireless LAN Adapters (onpage 57).
 XXX (USB): XXX represents Wired or Wireless.
The device is connected to the LAN through a
USB-cascading configuration. That is, it is aslave device.
Cascading Mode

Shows the cascading mode applied. See Setting
the Cascading Mode (on page 10).

Cascade Position Indicates the position of the Raritan device in theUSB-cascading configuration.
 0 (zero) represents the master device.
 A non-zero number represents a slave device. 1
is Slave 1, 2 is Slave 2, 3 is Slave 3 and so on.
This field is NOT available on a standalone Raritan
device.
Cascaded Device Indicates whether the presence of a slave device isConnected
detected on the USB-A port.
 yes: Connection to a slave device is detected.
 no: NO connection to a slave device is
detected.

28

Chapter 5: Identifying Cascaded Devices



A master device shows 0 (zero) in the Cascade Position field andyes in the Cascaded Device Connected field.



A slave device in the middle position shows a non-zero number
which indicates its exact position in the Cascade Position field
and yes in the Cascaded Device Connected field.

29

Chapter 5: Identifying Cascaded Devices

The following diagram shows 1, indicating it is the first slave Slave 1.

30

The final slave device shows a non-zero number which indicatesits position in the Cascade Position field and no in the Cascaded
Device Connected field.

Chapter 5: Identifying Cascaded Devices

The following diagram shows 2, indicating it is the second slave Slave 2. The Cascaded Device Connected field shows no,
indicating that it is the final one in the chain.

When your firmware supports the "Bridging" mode only:
1. Choose Maintenance > Device Information. The Device Information
dialog appears.
2. Select the Network tab and locate the Interface section. The
Interface section contains two read-only fields: Networking Mode andCascaded Device Connected.

31

Chapter 5: Identifying Cascaded Devices

32

A master device shows Wired in the Networking Mode field andyes in the Cascaded Device Connected field.

Chapter 5: Identifying Cascaded Devices



A slave device in the middle position shows Wired (USB) in the
Networking Mode field and yes in the Cascaded Device
Connected field.

33

Chapter 5: Identifying Cascaded Devices



The final slave device shows Wired (USB) in the Networking
Mode field and no in the Cascaded Device Connection field.

Using the CLIThis section explains how to identify a cascaded Raritan device throughthe CLI.
The ways to identify a cascaded device vary according to your firmware
version. See Software Requirements (on page 2) for information ondifferent firmware versions.
When your firmware supports two cascading modes:
1. Log in to the CLI of the desired Raritan device. To use the SSH or
Telnet service, see SSH/Telnet Access (on page 24).
2. Type either of the following CLI commands and press Enter.
#show cascading#show cascading details

3. The "Mode" field shows the cascading mode being applied: Bridging
or Port Forwarding.

34

Chapter 5: Identifying Cascaded Devices

4. The"'Position" field indicates the device's position.


A master device shows 0 (Master).
If a master device has NO slave devices connected to it, it is astandalone device. See step 6 for how to determine the presenceof a connected slave device.



A slave device shows a non-zero number which indicates its
position. For example:
1 (Slave 1) is the first slave device.

2 (Slave 2) is the second slave device.

5. In the Port Forwarding mode, a port mapping list similar to thefollowing diagram is displayed.

6. To check whether a slave device is connected to this device's USB-A
port, type either of the following CLI commands.
#

show network

A final slave device or a standalone device shows no in the"Cascaded device connected" field, indicating that there is no slave
device connected to its USB-A port. Otherwise, it shows yes.

When your firmware supports the "bridging" mode only:
1. Log in to the CLI of the desired Raritan device.
2. Type either of the following CLI commands.
#

show network

3. Locate the "Networking mode" and "Cascaded device connected"
fields displayed onscreen.
A master device shows Wired in the "Networking mode" field andyes in the "Cascaded device connected" field.

35

Chapter 5: Identifying Cascaded Devices



A slave device in the middle position shows Wired (USB) in the"Networking mode" field and yes in the "Cascaded device
connected" field.



A final slave device shows Wired (USB) in the "Networking
mode" field and no in the "Cascaded device connected" field.

Using the SNMP
Later firmware versions retrieve more USB-cascading information via
SNMP than earlier ones. See Software Requirements (on page 2) for
information on different firmware versions.
The unitConfigurationTable in MIB contains entries for USB-cascading
information. One SNMP MIB manager, such as a MIB browser, isrequired for the following operation.
When your firmware supports two cascading modes:
1. Launch your SNMP MIB manager and connect to the desired Raritan
device.
2. To find whether the Raritan device is in a USB-cascading
configuration, retrieve the value of either one below:


SNMP name - pduDaisychainMemberType



SNMP object identifier (OID) - 1.3.6.1.4.1.13742.6.3.2.2.1.41

One of the values in the following table is returned.
SNMP value

Description

standalone (0)The Raritan device is not in the USB-cascading
configuration. It is a standalone device.

master (1)The Raritan device is the master device.

slave (2)The Raritan device is a slave device.

3. To check the cascading mode applied, retrieve the value of either
one below:

36

SNMP name - deviceCascadeType



SNMP OID - 1.3.6.1.4.1.13742.6.3.2.2.1.70

Chapter 5: Identifying Cascaded Devices

One of the values in the following table is returned.
SNMP value

Cascading mode0

Bridging mode

1

Port forwarding mode

4. To identify the device's position in the USB-cascading configuration,
retrieve the value of either one below:


SNMP name - deviceCascadePosition



SNMP OID - 1.3.6.1.4.1.13742.6.3.2.2.1.71

One of the values in the following table is returned.
SNMP value

Device position0

Master device

1

Slave 1

2

Slave 2

3

Slave 3

4

Slave 4

5

Slave 5

6

Slave 6

7

Slave 7

5. To find whether the Raritan device is the final slave device, retrieve
the value of either one below:


SNMP name - cascadedDeviceConnected

SNMP OID - 1.3.6.1.4.1.13742.6.3.2.2.1.58

Check which value is returned. A final slave device has NO slave
device connected to its USB-A port.
SNMP value

Description

true (1)A slave device has been connected to thisRaritan device's USB-A port.

false (2)No slave device is connected to this Raritan
device's USB-A port.

When your firmware supports the "Bridging" mode only:
Use the cascadedDeviceConnected object to determine whether
your Raritan device is a USB-cascaded device. See the final step in
the above procedure for details.

37

Chapter 5: Identifying Cascaded Devices

Using the LCD Display
Some Raritan products have a front panel LCD display which can show
USB-cascading information, such as the device position.
Depending on the Raritan product you purchased, the LCD display typevaries.


PX3 phase II models use a dot-matrix LCD display.



PX3 phase I models, EMX and BCM use a character LCD display.

Dot-Matrix LCD Display
On the dot-matrix LCD display, the USB-cascading information indicatesthe cascading mode, position and the presence of a connected slave
device.
Note that the diagrams illustrated in this section are for Zero U models,
and your dot-matrix LCD display may look slightly different if it is on a 1U
or 2U model.
To view the USB-cascading information:
1. If the LCD display is in the Automatic mode, exit it by pressingor. The Main Menu similar to the following is displayed.

2. Presspressorto select "Device Info" in the Main Menu, and.

3. To go to the next page which shows the networking mode andUSB-cascading status, press

38.

Chapter 5: Identifying Cascaded Devices

Below illustrates the USB-cascading information displayed on the
dot-matrix LCD display.

NumberDescription
Networking information, including the network mode and MAC address.
USB-cascading information, including: Cascading mode: Bridging or Port Forwarding. See Setting the
Cascading Mode (on page 10).
 Cascade position: The position information is available only when the
Raritan device is in a USB-cascading configuration. The information
comprises a number and a noun enclosed in parentheses:- The number represents the device's position. For example, 0
represents the master device, 1 represents Slave 1, 2 represents Slave
2, and so on.
- The noun in parentheses indicates whether it is a master or slave
device.
 Slave connected: Indicates whether the presence of a slave device is
detected on the USB-A port - yes or no.

39

Chapter 5: Identifying Cascaded Devices

Character LCD Display
A cascaded device's position is available on the character LCD display.
Use the MODE button to switch between different modes. When in
device mode, a small "d" is displayed in the upper left corner.
For more information on the USB-cascading configuration, see
Cascading the Raritan device via USB (see "Cascading Raritan
Devices" on page 8).
Below illustrates a slave device's position shown on the LCD display.

SectionExample information"d" means the LCD display has entered the Device
mode.
"CA" indicates that the USB-cascading information is
being displayed.
"SLAVE" indicates that this Raritan device is a slave
device.
The number 1 means the device position is Slave 1.

For a master device, a word "MASTER" is displayed on the LCD display
instead of the word "SLAVE."
To retrieve the device's USB-cascading position information:
1. Press the MODE button until device settings are displayed, indicatedby a 'd' in at the top left of the display.
2. Press the FUNC button until "CA" is displayed at the top right of thedisplay.
3. The device's position is represented by any number defined below:

40

NumberDevice position0

Master device

1

Slave 1

Chapter 5: Identifying Cascaded Devices

NumberDevice position

2

Slave 2

3

Slave 3

4

Slave 4

5

Slave 5

6

Slave 6

7

Slave 7Note 1: For a standalone Raritan device, its position is the number 0, but
the word "MASTER" is NOT shown on the LCD display.
Note 2: If reversing or disconnecting the USB cable from a slave device,causing the slave device to become a master or standalone device, youmust plug an Ethernet cable to it to update its USB-cascading status.

41

Chapter 6

Updating the Raritan device
Firmware
You can upgrade each individual Raritan device in the USB-cascading
configuration through the web interface. The upgrade procedure iscompletely identical to the procedure for a standalone Raritan device.
Firmware files are available on Raritan website's Support page(http://www.raritan.com/support/).
To update the firmware:
1. Choose Maintenance > Update Firmware. The Update Firmware
dialog appears.
2. In the Firmware File field, click Browse to select an appropriate
firmware file.
3. Click Upload. A progress bar appears to indicate the upload status.
4. When the upload is complete, version information of both the existing
firmware and uploaded firmware is shown, providing you a lastchance to terminate the update.
5. To view the certificate of the uploaded firmware, click View
Certificate. Optional.
6. To proceed with the update, click Update Firmware. The update may
take several minutes.
Warning: Do NOT power off the Raritan device during the update.
During the firmware update:

A progress bar appears in the web interface, indicating the
update status.



The front panel display on the Raritan device shows three digits:'FuP' or 'FUP.'

Exception: A PX3 Phase II model shows the upgrade progress inpercent instead of FUP on its LCD display.


No users can successfully log in to the Raritan device.

The user management operation, if any, is forced to suspend.

7. When the update is complete, a message appears, indicating the
update is successful.
8. The Raritan device resets, and the Login page re-appears. You can
now log in and resume your operation.
Note 1: The other logged-in users are also logged out when the firmware
update is complete.

42Chapter 6: Updating the Raritan device Firmware

Note 2: If you are using the Raritan device with an SNMP manager,
download its MIB again after the firmware update to ensure your SNMP
manager has the correct MIB for the latest release you are using. See
Using SNMP in the online help.

43

Appendix A Configuring Network Settings
Network settings can be configured through either the web interface orcommand line interface (CLI). This appendix only shows basic operation.
For details, see the online help or User Guide for your Raritan device.
If the bridging mode is intended, you must configure the network settingsof each cascaded device respectively.
If the port forwarding mode is intended, you only need to configure themaster device's network settings.

In This Chapter
Configuration via Web Interface ..............................................................44
Configuration via CLI ...............................................................................45

Configuration via Web Interface
When you are able to connect to the master or slave device over Internet,
you can access its web interface to change the network settings.
To change initial network settings:
1. Launch a web browser and type the IP address of the Raritan device
in the address bar.

2. Accept any warnings that may appear and log in to that Raritan
device using the administrator account.
User name: adminPassword: raritan (or a new password if you have changed thepassword)

3. If this is the first time to log in to the Raritan device, you areprompted to change the password. Then type the new password.

44

Appendix A: Configuring Network Settings

4. Choose Device Settings > Network. The Network Configuration
dialog appears.
5. Click the IP Protocol tab to enable IPv4, IPv6 or both.
6. Depending on which IP protocol has been enabled in the above step,
click the corresponding tab to change the IP address settings.


If IPv4 is enabled, click the IPv4 Settings tab.



If IPv6 is enabled, click the IPv6 Settings tab.



If both are enabled, click both tabs to configure IP addresses
respectively.

Configuration via CLI
If you want to configure a master or slave device's network settings via
CLI, you must connect that device to a computer via a serial RS-232
connection.
You can also access the master device's CLI through a USB connection.
For details, see the Quick Setup Guide, Online Help or User Guide,
which can be downloaded from Raritan website's Support page(http://www.raritan.com/support/).
To configure network settings via CLI:
1. On the computer connected to the Raritan device, open a
communications program such as HyperTerminal or PuTTY.
2. Select the appropriate COM port, and set the following port settings:
Bits per second = 115200 (115.2Kbps)



Data bits = 8

Stop bits = 1

Parity = None

Flow control = None

Tip: For a USB connection, you can determine the COM port bychoosing Control Panel > System > Hardware > Device Manager,
and locating the "Dominion PX2 Serial Console" under the Ports
group.
3. In the communications program, press Enter to send a carriage
return to the Raritan device.
4. The Raritan device prompts you to log in. Both user name andpassword are case sensitive.
a. Username: adminb. Password: raritan (or a new password if you have changed it).

45

Appendix A: Configuring Network Settings

5. If prompted to change the default password, follow onscreen
instructions to type your new password.
6. The # prompt appears.
7. Type config and press Enter.
8. To configure network settings, type appropriate commands andpress Enter. All commands are case sensitive.
a. To set the networking mode, type this command:
network mode <mode>
where <mode> is wired (default) or wireless.
b. For the wired network mode, you may configure the LANinterface settings. In most scenarios, the default setting (auto)
works well and should not be changed unless required.

To setLAN interface
speed

Use this command
network interface
LANInterfaceSpeed <option><option> = auto, 10Mbps, or 100Mbps.

LAN interface
duplex mode

network interface
LANInterfaceDuplexMode <mode><mode> = half, full or auto.

Tip: You can combine multiple commands to configure multiple
parameters at a time. For example,
network interface LANInterfaceSpeed <option>
LANInterfaceDuplexMode <mode>c.

For the wireless network mode, you must configure the Service
Set Identifier (SSID) parameter.

To set
SSID

Use this command
network wireless SSID <ssid><ssid> = SSID string

If necessary, configure more wireless parameters shown in thefollowing table.

46

Appendix A: Configuring Network Settings

To set
BSSID

Use this command
network wireless BSSID <bssid><bssid> = AP MAC address or none

Authentication network wireless authMethod<method>method<method> = psk or eap
PSK

network wireless PSK <psk><psk> = PSK string

network wireless
EAP outer
authentication eapOuterAuthentication<outer_auth><outer_auth> = PEAP
network wireless
EAP inner
authentication eapInnerAuthentication<inner_auth><inner_auth> = MSCHAPv2
EAP identity

network wireless eapIdentity<identity><identity> = your user name for EAPauthentication

EAP passord

network wireless eapPassword
When prompted to enter the password
for EAP authentication, type thepassword.

EAP CAcertificate

network wireless
eapCACertificate
When prompted to enter the CA
certificate, open the certificate with atext editor, copy and paste the content
into the communications program.

The content to be copied from the CA certificate does NOT include
the first line containing "BEGIN CERTIFICATE" and the final line
containing "END CERTIFICATE." If a certificate is installed, configure
the following:47

Appendix A: Configuring Network Settings

Whether to
Verify thecertificate

Use this command
network wirelessenableCertVerification<option1><option1> = true or false
network wirelessAccept an
expired or not allowOffTimeRangeCerts<option2>
valid
certificate<option2> = true or false
Make theconnection
successful byignoring the"incorrect"
system time

network wirelessallowConnectionWithIncorrectC
lock <option3><option3> = true or falsed. To determine which IP protocol (IPv4 or IPv6) is enabled andwhich IP address (IPv4 or IPv6) returned by the DNS server isused, configure the following parameters.

To setIP protocol

Use this command
network ip proto <protocol><protocol> = v4Only, v6Only or both

IP address
returned by
the DNS
server

network ip
dnsResolverPreference<resolver><resolver> = preferV4 or preferV6

e. After enabling the IPv4 or IPv6 protocol in the earlier step,
configure the IPv4 or IPv6 network parameters.

To setIPv4
configuration
method48

Use this command
network ipv4
ipConfigurationMode <mode><mode> = dhcp (default) or static

Appendix A: Configuring Network Settings

To setIPv6
configuration
methodUse this command
network ipv6
ipConfigurationMode <mode><mode> = automatic (default) or static

Configure the preferred host name for the IPv4 DHCP or IPv6
automatic configuration.

Note: The <version> variable in all of the following commands iseither ipv4 or ipv6, depending on the type of the IP protocol you haveenabled.

To set

Use this command
Preferred host network <version>
preferredHostName <name>name(optional)<name> = preferred host nameTip: To override the DHCP-assigned DNS servers with those you
specify manually, type this command:
network <version> overrideDNS <option>
where <option> is enable or disable. See the table below for thecommands for manually specifying DNS servers.

For static IP configuration, configure these parameters.

To set

Use this command
network <version> ipAddress <ipaddress>

Static IPv4 or
IPv6 address<ip address> = static IP address
IPv4 subnet
mask

network ipv4 subnetMask<netmask><netmask> = subnet mask

IPv4 or IPv6
gateway

network <version> gateway <ipaddress><ip address> = gateway's IP address

49

Appendix A: Configuring Network Settings

To setIPv4 or IPv6
primary DNS
server

IPv4 or IPv6
secondary
DNS server(optional)

Use this command
network <version>
primaryDNSServer <ip address><ip address> = IP address of the
primary DNS server
network <version>
secondaryDNSServer <ip
address><ip address> = IP address of thesecondary DNS server

9. To quit the configuration mode, type either of the following
commands, and press Enter.
Commandapply

Description
Save all configuration changes and exit.

cancelAbort all configuration changes and exit.

The # prompt appears, indicating that you have quit the configurationmode.
10. To verify whether all settings are correct, type the following
commands one by one.
Commandshow network

Description
Show network parameters.

show network ip all Show all IP configuration
parameters.
show network
wireless details

Show all wireless parameters.

Tip: You can type "show network wireless" to display a shortened
version of wireless settings.
If all are correct, type exit to log out of the Raritan device. If any areincorrect, repeat Steps 7 to 10 to change network settings.

50

Appendix B Accessibility Troubleshooting
Any accessibility problem occurred on one of the devices in theUSB-cascading configuration may result in failure to access all
subsequent slave devices that are connected to it.

In This Chapter
Possible Root Causes .............................................................................51
Slave Connection and Disconnection Events..........................................52
The Ping Tool ..........................................................................................52

Possible Root Causes
The following lists the network accessibility issues and possible root
causes.
Symptom
Failure to access the masterdeviceProbable cause Network connection to the master device is lost.
No power is supplied to the master device.



For the wireless networking, one of the following maylead to the accessibility failure:

Failure to access a slave device The USB wireless LAN adapter attached to themaster device is not the Raritan USB WIFI LAN
adapter. See USB Wireless LAN Adapters (on page57).



The wireless LAN configuration is not supported. See
Supported Wireless LAN Configuration (on page57).

The installed CA certificate chain contains any
certificate that has expired or is not valid yet.

Network connection to the master device is lost.

USB connection to the slave device in question or any
prior slave device (if available) is lost.

No power is supplied to the slave device in question or
any prior cascaded devices.



Inappropriate firmware version is loaded to the slave
device in question or any prior cascaded devices. See
Software Requirements (on page 2).

In the port forwarding mode, the port number assigned to
the IP address is incorrect. See Port Number Syntax(on page 12).

51

Appendix B: Accessibility Troubleshooting

Tip: To determine which Raritan device may be the failure point of
network, you may ping each Raritan device in the USB-cascading
configuration, or look for the slave-related events in each Raritan
device's event log. See Slave Connection and Disconnection Events(on page 52) and The Ping Tool (on page 52).

Slave Connection and Disconnection Events
Whenever the connection or disconnection of a subsequent slave device
is detected, the Raritan device at the USB-A end of the USB cable logs itin the internal log. Note that the Raritan device at the USB-B end of thecable does NOT log these events.
There are two slave-related events:
Event

Description

USB slaveconnected

This log entry is generated when a Raritan device
detects the presence of a slave device on its
USB-A port.

USB slave
disconnected

This log entry is generated when it detects thedisconnection of a slave device from its USB-A
port.

The Ping Tool
The Raritan device provides a ping tool in the web interface and CLI so
you can ping any host or Raritan device in your data center.
Using the Web Interface
To log in to the web interface, see HTTP/HTTPS Access (on page 21).
The Ping tool is useful for checking whether a host is accessible throughthe network or Internet.
To ping a host:
1. Choose Maintenance > Network Diagnostics > Ping. The Ping
Network Host dialog appears.
2. In the Host Name field, type the name or IP address of the host thatyou want to check.
3. In the Number of Requests field, type a number up to 20 or adjust
the value by clicking either arrow. This number determines how
many packets are sent for pinging the host.
4. Click Run Ping to start pinging the host. A dialog appears, displaying
the Ping results.

52

Appendix B: Accessibility Troubleshooting

5. Click Close to quit the dialog.
Using the CLI
You can access the CLI interface by connecting a computer to the
Raritan device or using SSH/Telnet. See SSH/Telnet Access (on page24) for details.
You must perform the ping command in the diagnostic mode. To enter
the diagnostic mode, type the following command and press Ener.
#

diag

After the diag> or diag# prompt appears, you can perform the pingcommand.
This ping command sends the ICMP ECHO_REQUEST message to a
network host for checking its network connectivity. If the output shows
the host is responding properly, the network connectivity is good. If not,either the host is shut down or it is not being properly connected to the
network.
diag>ping <host>

Variables:<host> is the host name or IP address whose networking
connectivity you want to check.

Options:You can include any or all of additional options listed below in theping command.
Options

Description

count <number1>

Determines the number of messages to be
sent. <number1> is an integer number
between 1 and 100.

size <number2>

Determines the packet size. <number2> isan integer number in bytes between 1 and
65468.

timeout <number3>

Determines the waiting period before
timeout. <number3> is an integer number inseconds ranging from 1 to 600.

The command looks like the following when it includes all options:53

Appendix B: Accessibility Troubleshooting

diag>

54

ping <host> count <number1> size <number2> timeout <number3>

Appendix C Ethernet Disabled Scenarios on
Slave Devices
The Ethernet interface is automatically disabled on slave devices. Thisappendix illustrates this limitation by showing two scenarios.

In This Chapter
Example 1................................................................................................55
Example 2................................................................................................56

Example 1
Raritan device-1 has been directly connected to the LAN. Its Ethernet
interface is enabled and networking mode shows Wired.
Raritan device-2 has been directly connected to the LAN. Its Ethernet
interface is enabled and networking mode shows Wired.
If now you connect Raritan device-1 to the USB-B port of Raritan
device-2 using a USB cable, the following changes occur:Raritan device-1 becomes the master device.

Raritan device-2 becomes a slave device.

The Ethernet interface on Raritan device-2 is automatically disabled.
All of its IP packets are transmitted through Raritan device-1.

The networking mode of Raritan device-2 changes to Wired (USB),
indicating that it is connected to the network through the masterdevice.

55

Appendix C: Ethernet Disabled Scenarios on Slave Devices

Example 2
Raritan device-1 is a master device, which has Raritan device-2
connected to its USB-A port. On Raritan device-1, the Ethernet interface
is enabled, and the networking mode shows Wired.
Raritan device-2 is a slave device, whose Ethernet interface has been
disabled, networking mode shows Wired (USB), and IP packets aretransmitted through the master device.
If you directly connect Raritan device-2 to the LAN now, NO changes
occur.

56

Raritan device-2 continues to operate as a slave device.

The networking mode of Raritan device-2 still shows Wired (USB).

The Ethernet interface on Raritan device-2 remains disabled. All of
its IP packets are still transmitted through the master device.

Appendix D Wireless LAN Information
The USB-cascading configuration supports either a wired or wireless
LAN when in the port forwarding mode. See Setting the Cascading
Mode (on page 10).
This appendix provides information regarding wireless LAN configurationand LAN adapters.

In This Chapter
Supported Wireless LAN Configuration...................................................57
USB Wireless LAN Adapters ...................................................................57

Supported Wireless LAN Configuration
If wireless networking is preferred, ensure that the wireless LAN
configuration of your Raritan device matches the access point. The
following is the wireless LAN configuration that the Raritan device
supports.


Network type: 802.11 A/B/G/N



Protocol: WPA2 (RSN)

Key management: WPA-PSK, or WPA-EAP with PEAP and
MSCHAPv2 authenticationEncryption: CCMP (AES)

Important: Raritan only supports specific wireless LAN adapters.
Supported 802.11 network protocols vary according to the wireless LAN
adapter being used with the Raritan device. See USB Wireless LAN
Adapters (on page 57).

USB Wireless LAN Adapters
A standalone Raritan device supports the use of all of the following USB
wireless LAN adapters. However, the port forwarding mode only
supports the use of the Raritan USB WIFI LAN adapter.
Wi-Fi LAN adapter

Supported 802.11
protocols

Proxim Orinoco 8494

A/B/G

Zyxel NWD271N

B/G

Edimax EW-7722UnD

A/B/G/N

TP-Link TL-WDN3200 v1

A/B/G/N57

Appendix D: Wireless LAN Information

Wi-Fi LAN adapter

Supported 802.11
protocols

Raritan USB WIFI

A/B/G/N

Note: To use the Edimax EW-7722UnD or Raritan USB WIFI wireless
LAN adapter to connect to an 802.11n wireless network, the handshaketimeout setting must be changed to 500 or greater, or the wirelessconnection will fail.

58

IndexA

M

Accessibility Troubleshooting • 51
Appropriate Applications • 4

MAC Address • 17

B
Best Practices • 6

CN
Network Access • 16

P

Cascading Raritan Devices • 1, 8, 21, 40
Character LCD Display • 20, 40
Configuration via CLI • 45
Configuration via Web Interface • 44
Configuring Network Settings • 44

Plug and Play • 3Port Forwarding Examples • 11, 13, 23
Port Number Syntax • 10, 12, 13, 51
Possible Root Causes • 51
Power IQ • 26
Power IQ and dcTrack Management • 25

DS

dcTrack • 26
Dot-Matrix LCD Display • 18, 38

Safety Guidelines • ii
Safety Instructions • iii
Setting the Cascading Mode • 2, 7, 8, 10, 13,
25, 28, 39, 57
Slave Connection and Disconnection Events •52
SNMP Management • 24
SNMP Notifications • 25
Software Requirements • 2, 7, 9, 10, 27, 34,
36, 51
SSH/Telnet Access • 11, 24, 34, 53
Supported Web Browsers • 21, 22
Supported Wireless LAN Configuration • 51,
57

E
Ethernet Disabled Scenarios on Slave Devices• 7, 55
Example 1 • 55
Example 2 • 56

F
Finding the IP Address • 16, 27

H
Hardware Requirements • 1, 8
HTTP/HTTPS Access • 21, 27, 52

I
Identifying Cascaded Devices • 27
Inappropriate Applications • 6
Introduction • 1

L
LCD Display • 17
Local Console • 16

T
The Ping Tool • 52
Third-Party SNMP Managers • 25

U
Updating the Raritan device Firmware • 3, 8,
42
USB Wireless LAN Adapters • 8, 28, 51, 57
USB-Cascading Applications • 4
USB-Cascading Instructions • 7
USB-Cascading Restrictions • 7
Using the CLI • 34, 53
Using the LCD Display • 3859

IndexUsing the SNMP • 36
Using the Web Browser • 22
Using the Web Interface • 27, 52

W
Wireless LAN Information • 57

60

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