H3C MSR 900 Series, MSR 900, MSR 920, MSR 900W, MSR 920W Quick Start Manual

H3C MSR 900 Series Routers

Quick Start

Hangzhou H3C Technologies Co., Ltd.

Manual Version: 5P100-20090722

Copyright © 2009, Hangzhou H3C Technologies Co., Ltd. and its
licensors

H3C Technologies Co., Ltd., a subsidiary of 3Com Corporation.

All Rights Reserved

No part of this manual may be reproduced or transmitted in any form
or by any means without prior written consent of Hangzhou H3C
Technologies Co., Ltd.

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2

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The information in this document is subject to change without notice.
Every effort has been made in the preparation of this document to
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About This Manual

Organization

H3C MSR 900 Series Routers Quick Start is organized as follows:

Chapter Contents

1 Router Overview

Introduces the features and specifications

of the MSR 900 series routers.
2 Cable Connection Introduces how to connect the cables.
3 Service

Configuration

Introduces how to configure basic functi ons

of the MSR 900.
4 System

Management

Introduces how to back up the configuration

file and upgrade the software of the MSR

900.

5 Troubleshooting

Describes some problems that may occur

during operation and how to solve them.

Conventions

The manual uses the following conventions:

Symbols

Convention Description

Means reader be extremely careful. Improper
operation may cause bodily injury.

Means reader be careful. Improper operation
may cause data loss or damage to equipment.

Means a complementary description.

Related Documentation

In addition to this manual, each H3C MSR Series Routers
documentation set includes the following:

Manual Description

H3C MSR Series
Routers Web
Configuration Manual

Describes the features of the H3C MSR
series routers that can be configured
through web pages and introduces how
to configure these features.

H3C MSR Series
Routers User Manual

It is a guide for the user to perform the
operations correctly. It is organized into
the parts of access, IP services, IP
routing, IP multicast, MPLS, VPN, QoS,
security, system, IPX, and voice.

It also gives the user a detailed
description of the operating commands.
It is organized into the parts of access,
IP services, IP routing, IP multicast,
MPLS, VPN, QoS, security, system,
multicast, and voice, as well as a
command index.

Obtaining Documentation and Technical Support

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Go to the following columns for different categories of product You
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[e-mail]
http://www.h3c.com

At http://www.h3cnetworks.com

Documentation

1) Select Drivers & Downloads in the Support area.

2) Select Documentation for Type of File and select Product

Category.

Technical Support

Register Your Product

Warranty and other service benefits start from the date of purchase,
so it is important to register your product quickly to ensure you get full
use of the warranty and other service benefits available to you.

Warranty and other service benefits are enabled through product
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go to Support, Product Registration. Support services are based
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Purchase Value-Added Services

To enhance response times or extend warranty benefits, contact
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Express

SM

and GuardianSM can include 24x7 telephone technical
support, software upgrades, onsite assistance or adva nce hardware
replacement. Experienced engineers are available to manage your
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Contact your authorized reseller or 3Com for a complete list of the
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Troubleshoot Online

You will find support tools posted on the web site at

http://www.h3cnetworks.com/ under Support, Knowledgebase.
The Knowledgebase helps you troubleshoot H3C products. This

query-based interactive tool contains thousands of technical
solutions.

Access Software Downloads

Software Updates are the bug fix / maintenance releases for the

version of software initially purchased with the product. In order to
access these Software Updates you must first register your product
on the web site at http://www.h3cnetworks.com, go to Support,
Product Registration.

First time users will need to apply for a user name and password. A
link to software downloads can be found at

http://www.h3cnetworks.com, under Support, Drivers and
downloads.

Software Upgrades are the software releases that follow the

software version included with your original product. In order to
access upgrades and related documentation you must first purchase
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Telephone Technical Support and Repair

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Warranty and other service benefits start from the date of purchase,
so it is important to register your product quickly to ensure you get full
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When you contact 3Com for assistance, please have the following
information ready:

z Product model name, part number, and serial number
z Proof of purchase, if you have not pre-registered your product
z A list of system hardware and software, including revision level
z Diagnostic error messages
z Details about recent configuration changes, if applicable

To send a product directly to 3Com for repair, you must first obtain a
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will be returned to the sender unopened, at the sender’s expense. If
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We appreciate your comments.

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i

Table of Contents

1 Router Overview ...................................................................................1-1

Introduction.........................................................................................1-1

Technical Specifications.....................................................................1-1

Front Panel.........................................................................................1-2

Rear Panel .........................................................................................1-4

2 Cable Connection .................................................................................2-1

3 Service Configuration ..........................................................................3-1

Logging In to the Web Interface.........................................................3-1

Network Access..................................................................................3-2

Configuring Internet Access Through the Wizard.......................3-2

Configuring Broadband Internet Access Manually.....................3-5

Creating WLAN Connections.............................................................3-8

Access Control.................................................................................3-16

Content Filtering...............................................................................3-18

Modifying User Password ................................................................3-20

4 System Management............................................................................4-1

Saving the Configuration....................................................................4-1

Initialization.........................................................................................4-1

Configuration File Backup..................................................................4-2

Configuration Restoration ..................................................................4-3

Backup & Restoration Through USB Interface ..................................4-3

Reboot................................................................................................4-5

SNMP.................................................................................................4-6

Configuring SNMP v1 and SNMP v2..........................................4-6

Configuring SNMP v3.................................................................4-8

5 Troubleshooting....................................................................................5-1

1-1

1 Router Overview

Introduction

The MSR 900 series routers (hereinaf ter referred to as the MSR 900)
are the access devices developed by H3C for use on medium- and
small-sized enterprise networks. With advanced software
architecture and hardware platform, the MSR 900 is designed to
provide a unified solution requiring a minimum investment, fully
meeting the challenges of future service expansion and confo rming to
both the status quo and tendency of enterprise IT construction.

The MSR 900 series routers comprise wireless models (MSR 900W
and MSR 920W) and wired models (MSR 900 and MSR 920).

Technical Specifications

Table 1-1 Hardware specifications of the MSR 900 series routers

Item MSR 900/900W MSR 920/920W

Console 1 1
USB 1 1
FE 2 2

Fixed
interfaces

LAN FE 4 8

Dimensions (H × W ×
D) (excluding feet and
mounting brackets)

44.2 × 230 × 160
mm (1.74 × 9.06 ×

6.30 in.)

44.2 × 230 × 160
mm (1.74 × 9.06 ×

6.30 in.)

Weight 1.8 kg (3.97 lb) 1.8 kg (3.97 lb)

1-2

Item MSR 900/900W MSR 920/920W

AC input voltage

Rated voltage
range: 100 VAC to
240 VAC, 50 Hz or
60 Hz

Rated voltage
range: 100 VAC to
240 VAC, 50 Hz or

60 Hz
DC input voltage 12 V 12 V
Max power

consumption

12 W 12 W

Operating
temperature

0°C to 40°C (32°F
to 104°F)

0°C to 40°C (32°F to

104°F)
Operating humidity

(non-condensing)

5% to 90% 5% to 90%

Front Panel

Figure 1-1 Front panel of the MSR 900/MSR 900W

1-3

Figure 1-2 Front panel of the MSR 920/MSR 920W

Table 1-2 Description of the LEDs, USB interface, and RESET button

Item Status Description

Off No power supply is present.

Power
supply LED
(PWR)

On

The power supply operates
normally.

Slow blinking The system operates normally.

Fast blinking

The system is working in situations
with large traffic flow.

WLAN LED
(WLAN)

Off The system operates abnormally.
Fast blinking

(green)

The system is starting up.

Slow blinking
(green)

The system operates normally.

Fast blinking
(yellow)

The system is faulty.

System
LED (SYS)

Off The system operates abnormally.

1-4

Item Status Description

On A link is present.

Blinking

Data is being transmitted or
received.

Ethernet
interface
LEDs (0 to

9)

Off No link is present.

USB
interface

— Connecting to a USB device

RESET
button

—

Pressing the RESET button for over
three seconds to restore the factory
default settings

Generally, the WLAN LED on a wired MSR device (MSR 900 and
MSR 920) stays off.

Rear Panel

Figure 1-3 Rear panel of the MSR 900/MSR 900W

1-5

Figure 1-4 Rear panel of the MSR 920/MSR 920W

Table 1-3 Description of the interfaces and antennas

Item Description

Console port
(CONSOLE)

Connecting to a PC through a console
cable for system configuration

Fixed Ethernet
interfaces (ETH 0 and
ETH 1)

Uplink Layer 3 Ethernet interfaces for
WAN connections

Fixed Ethernet
interfaces (ETH 2 to
ETH 9)

Downlink Layer 2 Ethernet interfaces for
connections to user terminals or swit ches

Antenna Transmitting radio frequency signals
DC power input Connecting to the supplied power adapter

z Only the MSR 900W and MSR 920W require antenna installation.
z The MSR 900W requires one antenna while the MSR 920W

requires two antennas.

2-1

2 Cable Connection

Follow these steps to connect cables for the MSR 900:

Step1 Use a network cable to connect the uplink Ethernet interface (ETH 0

or ETH 1) to a WLAN access point.

Step2 Use network cables to connect the do wnlink Ethernet interfaces to the

Ethernet interfaces on user terminals.

Step3 Connect the power adapter to the power input.

Figure 2-1 Cable connection

192.168.1.1/24

WAN

1

2

3

User host

3-1

3 Service Configuration

This configuration example uses a user terminal runni ng Windows XP
and Internet Explorer 6.0.

Logging In to the Web Interface

Follow these steps to log in to the Web interface for the first time:

Step1 T ype the default IP address http://192.168.1.1 in the address bar and

press Enter to enter the page shown in

Figure 3-1.

Figure 3-1 Web login interface

Step2 Type the username, password (admin/admin by default) and verify

code and then click Login. After a successful verification, you can
enter the web configuration page sho wn in

Figure 3-2.

3-2

Figure 3-2 Web configuration page

Network Access

Configuring Internet Access Through the Wizard

The wizard allows you to set the parameters for Internet access
quickly as following the system prompts.

Step1 Select Wizard > Basic Configuration Wizard from the navigation

tree in the configuration page to enter the welcome page shown in
Figure 3-3.

Figure 3-3 Basic configuration wizard

3-3

Step2 Click Next>> to enter the page displaying LAN interface parameters,

as shown in

Figure 3-4.

Figure 3-4 LAN interface configuration page

z By default, all Ethernet interfaces belong to VLAN 1. Therefore,

you need to specify the IP address and mask of the device as the
IP address and subnet mask of VLAN 1.

z You can also configure the device to act as a DHCP server to

dynamically assign IP addresses for the terminals. To do this,
select the radio button before Enable in the page shown above
and type the address range of the DHCP address pool in the
Start IP Address and End IP Address fields.

The IP address of the device cannot be included in the DHCP
address pool.

3-4

z Type the IP address of the device in the Gateway IP Address

field to specify the device as a gateway. The gateway is
responsible for data forwarding when DHCP clients access
servers or hosts outside the current network segment. With the
gateway address specified for the address pool, the device acts
as the DHCP server and sends the gateway address together
with the IP addresses to the clients.

z To enable DHCP clients to access a host on the Internet via the

domain name, the DHCP server also sends IP addresses of two
DNS servers to the clients, with DNS server 1 in preference of
DNS server 2.

Step3 After configuring the parameters for the LAN interfaces, click Next>>

to enter the page for configuring the parameters for the WAN
interfaces, as shown in

Figure 3-5.

Figure 3-5 WAN interface configuration page

z Set the WAN interface to Ethernet0/0 so that Ethernet 0/0

serves as the uplink interface for network access. Set the
Connect Mode to PPPoE.

z Enter the username and password for network access.

3-5

Step4 Click Next>> after the configurations to enter the p age displ aying the

configuration information, as shown in

Figure 3-6.

Figure 3-6 Basic configuration confirmation page

Step5 Click Finish if the configuration information is correct. The system

thus saves the configurations automatically. Click Close on the page
shown below to finish the operation.

Figure 3-7 Current configuration displaying page

Configuring Broadband Internet Access Manually

Follow these steps to configure Internet access manually:

3-6

Step1 Select Interface Setup > LAN Interface Setup from the navigation

tree and select the VLAN Interface Setup tab to enter the page
shown in

Figure 3-8.

Figure 3-8 VLAN interface configuration page

z By default, all Ethernet interfaces belong to VLAN 1. Therefore,

you need to specify the IP address and mask of the device as the
IP address and subnet mask of VLAN 1.

z You can also configure the device to act as a DHCP server to

dynamically assign IP addresses for the terminals. To do this,
select the radio button before Enable in the p age above and type
the address range of the DHCP address pool in the Start IP
Address and End IP Address fields.

The IP address of the device cannot be included in the DHCP
address pool.

3-7

z Type the IP address of the device in the Gateway field to specify

the device as a gateway. The gateway is responsible for data
forwarding when DHCP clients access servers or hosts outside
the current network segment. With the gateway address
specified for the address pool, the device acts as the DHCP
server and sends the gateway address together with the IP
addresses to the clients.

z To enable DHCP clients to access a host on the Internet via the

domain name, the DHCP server also sends IP addresses of two
DNS servers to the clients, with DNS server 1 in preference of
DNS server 2.

Step2 Select Interface Setup > WAN Interface Setup from the navigation

tree and click the operation icon corresponding to Ethernet 0/0, as
shown in

Figure 3-9.

Figure 3-9 WAN interface configuration page

Step3 Set the Connect Mode to PPPoE to enter the page shown in

Figure

3-10.

3-8

Figure 3-10 Configure PPPoE parameters

Step4 Type the username and password for network access and click

Confirm.

Creating WLAN Connections

Follow these steps to establish a wireless connection if a host is
willing to access the network through WLAN and it supports 802.1b/g:

Step1 Select Interface Setup > Wireless > Access Service from the

navigation tree. Then click New to enter the page for creating a
wireless connection as shown in

Figure 3-11.

Figure 3-11 Create a wireless connection

3-9

Step2 Type the wireless service name, set the service type to crypto, and

click Apply to bring the configuration into effect

Figure 3-12 Wireless connection configuration page

Step3 Configure a password for accessing the created WLAN (SSID). After

creating a WLAN service, you can enter the page shown in

Figure

3-13.
Figure 3-13 Access service security configuration page

3-10

Step4 Click the plus sign “+” before Security Setup, set Authentication

Type to OpenSystem, select the checkbox before Encryption, set
WEP to WEP40, specify Key ID and Key Length, and enter the key

in the WEP Key field.
You can configure multiple SSIDs and assign different key IDs for

them in case WEP encryption mode is selected. Click Apply to
complete the configuration.

Step5 Configure the WLAN client in the operating system of the user

terminal. Take Windows XP for example. Click Start > All Programs
> Control Panel.

Figure 3-14 Enter the control panel page

Step6 Click Network and Internet Connections under Pick a category to

enter the page shown in

Figure 3-16.

3-11

Figure 3-15 Enter network and Internet connection page

Figure 3-16 Network connection displaying page

Step7 Double-click the Wireless icon to enter the WLAN connection

configuration page. Then click Refresh net work list in the navigation
bar to search for available WLAN networks. A page displaying the
current WLAN networks may appear as shown in

Figure 3-17.

3-12

Figure 3-17 WLAN connection configuration page

Step8 Click Change advanced settings in the left navigation bar to enter

the page shown below.

3-13

Figure 3-18 Enter advanced configuration page

Step9 Click the Wireless Networks tab to enter the page shown in

Figure
3-19, select the self-defined SSID displayed in the Preferred
networks field, and then click Properties.

3-14

Figure 3-19 WLAN connection configuration page

Step10 Specify the Key index value as the key ID configured on the devi ce

and click OK.

3-15

Figure 3-20 Configure the key index

Step11 After returning to the page shown in

Figure 3-18, select the WLAN
connection configured on the router and click Connect to enter the
page shown in

Figure 3-21. Then type the key and click Connect.

3-16

Figure 3-21 Enter the key for WLAN a ccess

Step12 Appearance of the page shown in

Figure 3-22 indicates a
successful WLAN connecti on, that is, you can access the Internet via
the WLAN connection.

Figure 3-22 Successful WLAN connection

Access Control

The access control function allows you to control the user access to
the Internet. For example, you can prevent users from accessing
stock-related websites from 9:00 to 17:00, Monday through Friday.

3-17

You can configure access control rules to define the time period, user
IP addresses, port range, and data packet types. The MSR 900
supports configuring up to five access control rules, in the order the
rules are configured.

Select Securi ty Setup > Access from the navigation tree to enter the
page shown in

Figure 3-23.

Figure 3-23 Access control configuration page

Table 3-1 Description of the configuration items

Item Description

Begin-End
Time

Specifies the time period in which the rule is active,
with the end time ahead of the start time.

Week

Specifies the days in a week on which the rule is
active.

Protocol

Specifies the protocol used for transmitting packets.
This function allows access control by protocol,

which can be TCP, UDP and IP. “IP” refers to all
protocols.

Source IP
Address

Specifies the IP address range of hosts on the LAN
to be controlled.

To control the access of a single IP address,

192.168.1.2 for example, enter 192.168.1.2 ~

192.168.1.2.

3-18

Item Description

Destination
Port

Specifies the ports through which hosts on the LAN
access the Internet.

For example, for the telnet port (23), enter 23 ~ 23.

Operation

Specifies the status of the rule:

z Deny: Filters out packets matching the rule while

allowing other packets to pass.

z Permit: Filters out all packets except those

matching the rule.

z None: The rule is ineffective.

Table 3-2 Common services and corresponding port numbers

Service Protocol Port number

FTP service TCP 21
Telnet service TCP 23
TFTP service UDP 69
Web service TCP 80

Content Filtering

The content filtering function allows you to control the websites users
can access. You can perform such content filtering by the host names,
protocol types, or website addresses.

Follow these steps to configure content filtering rules:
Select Security Setup > URL Filter fro m the navigation tree to enter

the URL filtering configu ration page shown below.

3-19

Figure 3-24 URL filtering configuration page

In this configuration page, you can configure the filtering rules as
needed and click Filter to finish the configuration process. Then the
filtering rules are displayed in the Select the filtering condition
value(s) field and these rules take effect instantly.

Table 3-3 describes the URL filtering con f iguration items.

Table 3-3 Description of the URL filtering configuration items

Item Description

URL

Specifies the URL
address, which can be
a regular expression

Keyword

Specifies the keyword
to be filtered, which can
be a regular expression

For the effect of the
configuration with
both the URL
address and
keyword specified,
see

Table 3-4.

Import
filter list
file

File
Name

Specifies that the filtering conditions are
imported from the URL filtering list file on the
host and specifies the path and file name of the
file.

3-20

Table 3-4 Description of the configuration effect

URL address Keyword Description

www.abc.com —

Filters out all pages of the
specified website

www.abc.com /index.html

Filters out the /index.html
page of the specified website

www.abc.com /index.html?

Filters out the /index.html and
/index.htm pages of the
specified website

(news|tech)\.ab
c\.com

—

Filters out all pages of the
specified sub-websites, such
as news.abc.com and
tech.abc.com

(news|tech)\.ab
c\.com

/index.html

Filters out the /index.html
pages of the specified
sub-websites

(news|tech)\.ab
c\.com

/index.html?

Filters out the /index.html and
/index.htm pages of the
specified sub-websites

To remove a filtering rule, select the rule from the Select the filtering

condition value(s) field and click Delete.

Modifying User Password

You can modify the password for logging in to the configuration p age.
The initial username and password are both admin. Follow these
steps to modify the password:

Select System Management > Users from the navigation tree and
click the Modify User tab to enter the user management
configuration page.

3-21

Figure 3-25 User management configuration page

Select the username from the user list, select the checkbox before

Password Modify, type the new password and confirm it, and click
Apply to finish the operation.

4-1

4 System Management

Saving the Configuration

Select System Management > Configuration from the navigation
tree to enter the Save tab page, which is displayed by default, as
shown in

Figure 4-1.

Figure 4-1 Save the configuration

Click Sav e Current Settings to save the current configurations to the
configuration file.

z It takes some time for the system to save the configurations.
z The system does not support two or more users to save

configuration simultaneously. If such a case occurs, the system
will prompt the latter users to try again later.

Initialization

Select System Management > Configuration from the navigation
tree and click the Initialize tab to enter the page sho wn in

Figure 4-2.

4-2

Figure 4-2 Initialization

Click Restore Factory-Default Settings to restore the initial settings.

Configuration File Backup

The configuration file backup module delivers the follo wing function s:

z View the configuration file for the next boot, including .cfg

and .xml files.

z Back up the configuration file for the next boot to the local user

host.

Select System Management > Configuration from the navigation
tree and click the Backup tab to enter the page sh own in

Figure 4-3.

Figure 4-3 Backup the configuration file

z Click Backup and you will see a dialog box, where you can open

the configuration file for the next boot or save it to the local
device.

z Click Backup and you will see a dialog box, where you can open

the configuration file for the next boot or save it to the local
device.

4-3

Configuration Restoration

The configuration restoration function allows you to upload the
configuration file with the extension of .cfg to the device in use for the
next system boot.

Select System Management > Configuration from the navigation
tree and click the Restore tab to enter the page shown in

Figure 4-4.

Figure 4-4 Restore the configuration file

z Click Browse… and specify the configuration file with the

extension of .cfg to be uploaded from the pop-up dialog box.
Then click OK to start uploading the configuration file.

z Click Browse… and specify the configuration file with the

extension of .xml to be uploaded from the pop-up dialog box.
Then click OK to start uploading the configuration file.

Backup & Restoration Through USB Interface

The files needed in device running, such as application files and
configuration files, are stored in the storage medium of the device. To
facilitate management of the files on the device, the device provides
the fast backup and restoration functions.

z Fast backup: Backs up files on the device to the destination

device through the USB interface.

z Fast restoration: Uploads files to the local device through a USB

interface. You can specify the uploaded application file or
configuration file as the main application or configuration file.

4-4

Select System Management > Configuration from the navigation
tree and click the Backup and Restore tab to enter the page shown
in

Figure 4-5.

Figure 4-5 Quick backup and restoration through the USB interface

z In the Device File(s) area, select the files to be backed up, and

click the Backup button to backup the selected files to the
destination device through the USB interface.

z In the USB File(s) area, select the files to be restored, and click

the Restore button to transfer the selected files to the device
through the USB interface.

4-5

z At a time, you can restore multiple files, but only one application

file or configuration file can be included for restoration.

z Use the USB devices provided by H3C only for backing up and

restoring configuration files.

Reboot

Before rebooting the device, save the configurations; otherwise, any
configuration changes that have not been saved will get lost after the
system reboots. After the device reboots, you need to re-log in to the
Web interface.

Select System Management > Reboot from the navigation tree to
enter the page shown in

Figure 4-6. Click Apply to reboot the device.

Figure 4-6 Reboot the device

4-6

You can choose to check whether the current configuration has been
saved to the configuration file to be used at the next startup.

z If you select the checkbox before “Check whether the current

configuration is saved in the next startup configuration file”,

the system will check the configuration before rebooting the
device. If the check succeeds, the system reboots the device; if
the check fails, the system pops up a prompt to inform that the
current configuration file and the saved configuration file are
inconsistent. As a result, the system will not reboot the device. In
this case, you need to save the current configuration manually
before you can reboot the device.

z If you do not select the checkbox, the system reboots the device

directly.

SNMP

Simple Network Management Protocol (SNMP) offers the
communication rules between a management device and the
managed devices on the network. SNMP enables network
administrators to search and modify information, locate and diagnose
network problems, plan for network growth, and generate reports on
network nodes.

Currently, there are three SNMP versions, SNMP v1, SNMP v2, and
SNMP v3.

Configuring SNMP v1 and SNMP v2

Select System Management > SNMP from the navigation tree to
enter the page shown in

Figure 4-7.

4-7

Figure 4-7 SNMP v1 and SNMP v2 configuration page

z Select the radio button before Enable to enable SNMP.
z Select the radio button before SNMPv1&v2 to specify the SNMP

version.

z Configure Read Pass word and Read & Write Password , which

are used when the NMS performs read or read-write operations
on the device. Configure Trap Password, which is used for
authenticating the trap messages sent from the device to the
NMS.

z You can specify the IP address of the NMS trusted by the agent

in the Trusted Host field as needed. Thus only the specified
NMS can access the device. Any NMS can access the device if
this field is not specified.

z Specify the IP address of the host to which the SNMP trap

messages are sent in the Trap Target Host field.

z Click Apply to finish the configuration.

4-8

Configuring SNMP v3

Select System Management > SNMP from the navigation tree to
enter the page shown in

Figure 4-8.

Figure 4-8 SNMP v3 configuration page

z Select the radio button before Enable to enable SNMP.
z Select the radio button before SNMPv3 to specify the SNMP

version.

z Enter the information of the manufacturer in the Contact

Information field to ensure that the information is available when

needed.

z Configure the system name in the Sysname field. The system

name will be displayed in the upper left of the navigation bar.

z Enter the location of the device in the Device Location field so

as to facilitate location of faulty devices during troubleshooting.

4-9

z Configure the security username, authentication password, and

encryption password in the Security Username,
Authentication Password, and Privacy Password fields
respectively. SNMP v3 supports MD5 authentication and DES56
encryption.

5-1

5 Troubleshooting

The power LED (PWR) is off

Observe the following points:

z A proper power adapter is used.
z The power cord is correctly connected.
z The power switch is turned on.

The Ethernet interface LED (ETH) is off

Observe the following points:

z The network cable is correctly connected.
z The network cable is firmly connected.

The LAN LED (LAN) is off

Observe the following points:

z A proper network cable is used to connect the device and the

computer.

z The network cable is correctly connected.
z The LED for the network card of the computer is on.
z The network card of the computer operates normally.

You can open the Device Manager in the Windows operating system
and check whether a question mark “?” or an exclamation mark “!”
exists on items under Network adaptors. If such a mark exists, you
can try to uninstall the device and inst all it again or inst all the network
card in another slot. If the problem remains, install a new network
card.

5-2

Restores to the factory default settings

You can press the RESET button on the front panel and hold it for
over three seconds to restore the system to the factory default
settings.

Fails to connect to the Internet though the AP can be found

Check that the SSID of the wireless NIC of the computer and the key
are correctly configured.

Suffers weak or unstable radio signals

Observe the following points:

z Strong magnetic fields nearby or radio wave interference can be

a problem. Keep the MSR 900 series routers and the user
terminals away from strong magnetic fields and elect rical devices
with strong electric fields.

z Materials such as cement and boards may partially or totally

block radio signals. It is recommended to install the MSR 900 in
open spaces.

z The user terminal is far away from the MSR 900. Move the user

terminal closer and try again.

z Lightning strikes may also cause interference in WLAN

connections.