3COM WL-552 User Manual

OfficeConnect

ADSL Wireless 54 Mbps 11g Firewall Router

User Guide

WL-552

3CRWDR101A-75 3CRWDR101B-75

http://www.3Com.com/

Part No. 10015091 Rev. AA

Published March 2006

3Com Corporation 350 Campus Drive, Marlborough, MA USA 01752-3064

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CONTENTS

ABOUT THIS GUIDE

Naming Convention 7 Conventions 8 Feedback About This User Guide 8 Related Documentation 9

1 INTRODUCING THE ROUTER

OfficeConnect ADSL Wireless 54 Mbps 11g Firewall Router 11 Router Advantages 13 Package Contents 13 Minimum System and Component Requirements 14 Physical Features 14

2 INSTALLING THE ROUTER

Introduction 17

Safety Information 17

Positioning the Router 17

Using the Rubber Feet 18 Wall Mounting 18 Powering Up the Router 19 Connecting the Router 19

3 SETTING UP YOUR COMPUTERS

Obtaining an IP Address Automatically 23

Windows 2000 23

Windows XP 25

Windows 98/ME 25

Macintosh 25 Disabling PPPoE and PPTP Client Software 26 Disabling Web Proxy 26

4 RUNNING THE SETUP WIZARD

Accessing the Setup Wizard 27

Setup Wizard - Change Password 30 Setup Wizard - Time and Time Zone 30 Setup Wizard - Connection Type 31 Setup Wizard - LAN Settings 36 Setup Wizard - Wireless Settings 37 Setup Wizard - Configuration Summary 38

5 CONFIGURING THE ROUTER

Navigating Through the Router Configuration screens 39

Main Menu 39

Welcome Screen 39

Status 39

LAN Settings 40

LAN Settings 40 DHCP Clients List 41

Wireless Settings 43

Configuration 44 Encryption 45 Connection Control 50 Client List 51 WDS Settings 51 Advance 52 Profile 53

Internet Settings 54

ATM PVC 54 DNS 65 Hostname & Clone MAC address 66

Firewall 67

SPI 67 Special Applications 71 Virtual Servers 72 DMZ 73

Schedule Rule 74

PC Privileges 75

URL Filter 77

Server Control 79 Quality of Service 81

QoS Settings 81

Traf fic Map pin g 8 1

Traffic Statistics 82 Advanced 83

Security 83

Static Routes 86

RIP 87

DDNS 88

SNMP 90

Syslog 91

Proxy ARP 92 System Tools 93

Restart Router 93

Configuration 93

Upgrade 94

Time Zone 95

Ping 96

Traceroute 97

DNS Lookup 98 Status and Logs 99

Status 99

ADSL Status 99

ATM PVC Status 100

Routing Table 100

Logs 101 Support/Feedback 102

Support 102

Feedback 102

6 TROUBLESHOOTING

Basic Connection Checks 103 Browsing to the Router Configuration Screens 103

Connecting to the Internet 104 Forgotten Password and Reset to Factory Defaults 104 Wireless Networking 105 Recovering from Corrupted Software 107 Frequently Asked Questions 108

A IP ADDRESSING

The Internet Protocol Suite 109 Managing the Router over the Network 109

IP Addresses and Subnet Masks 109

How does a Device Obtain an IP Address and Subnet Mask? 111

DHCP Addressing 111 Static Addressing 111 Auto-IP Addressing 111

B TECHNICAL SPECIFICATIONS

OfficeConnect ADSL Wireless 54Mbps 11g Firewall Router 113

Standards 114

C SAFETY INFORMATION

D END USER SOFTWARE LICENSE AGREEMENT

E OBTAINING SUPPORT FOR YOUR PRODUCT

Register Your Product 123 Purchase Value-Added Services 123 Troubleshoot Online 124 Access Software Downloads 124 Telephone Technical Support and Repair 124 Contact Us 125

GLOSSARY

REGULATORY NOTICES

INDEX

ABOUT THIS GUIDE

This guide describes how to install and configure the 3Com OfficeConnect (3CRWDR101A-75/3CRWDR101B-75).

This guide is intended for use by those responsible for installing and setting up network equipment; consequently, it assumes a basic working knowledge of LANs (Local Area Networks) and Internet Routers.

If a release note is shipped with the 3Com OfficeConnect ADSL Wireless 54 Mbps 11g Firewall Router and contains information that differs from the information in this guide, follow the information in the release note.

Most user guides and release notes are available in Adobe Acrobat Reader Portable Document Format (PDF) on the 3Com World Wide Web site:

http://www.3Com.com

ADSL Wireless 54 Mbps 11g Firewall Router

Naming Convention Throughout this guide, the 3Com OfficeConnect

Mbps 11g Firewall Router is referred to as the “Router”.

Category 3 and Category 5 Twisted Pair Cables are referred to as Twisted Pair Cables throughout this guide.

ADSL Wireless 54

8 ABOUT THIS GUIDE

Conventions Ta bl e 1 and Tab l e 2 list conventions that are used throughout this guide.

Table 1 Notice Icons

Icon Notice Type Description

Information note Information that describes important features or

instructions.

Caution Information that alerts you to potential loss of data or

potential damage to an application, system, or device.

Warning Information that alerts you to potential personal

injury.

Table 2 Text Conventions

Convention Description

The words “enter” and “type”

Keyboard key names If you must press two or more keys simultaneously, the key

Words in italics Italics are used to:

When you see the word “enter” in this guide, you must type something, and then press Return or Enter. Do not press Return or Enter when an instruction simply says “type.”

names are linked with a plus sign (+). Example:

Press Ctrl+Alt+Del

■ Emphasize a point.

■ Denote a new term at the place where it is defined in the

text.

■ Identify menu names, menu commands, and software

button names. Examples:

From the Help menu, select Contents.

Click OK.

Feedback About This User Guide 9

Feedback About This User Guide

Your suggestions are very important to us. They will help make our documentation more useful to you. Please e-mail comments about this document to 3Com at:

pddtechpubs_comments@3com.com

Please include the following information when commenting:

■ Document title

■ Document part number (on the title page)

■ Page number (if appropriate)

Example:

■ 3Com OfficeConnect ADSL Wireless 54Mbps 11g Firewall Router User

Guide

■ Part Number 10015091 Rev. AA

■ Page 24

Do not use this e-mail address for technical support questions. For information about contacting Technical Support, please refer to

Appendix C

INTRODUCING THE ROUTER

Welcome to the world of networking with 3Com®. In the modern business environment, communication and sharing information is crucial. Computer networks have proved to be one of the fastest modes of communication but, until recently, only large businesses could afford the networking advantage.

OfficeConnect ADSL Wireless 54 Mbps 11g Firewall Router

The OfficeConnect ADSL Wireless 54 Mbps 11g Firewall Router is designed to provide a cost-effective means of sharing a single broadband Internet connection amongst several wired and wireless computers. The Router also provides protection in the form of an electronic “firewall” preventing anyone outside of your network from seeing your files or damaging your computers. The Router can also prevent your users from accessing Web sites which you find unsuitable.

Figure 1

only one computer is connected to the Internet. This computer must always be powered on for the other computers on the network to access the Internet.

shows an example network without a Router. In this network,

12 CHAPTER 1: INTRODUCING THE ROUTER

Figure 1 Example Network Without a Router

When you use the Router in your network (Figure 2), it becomes your connection to the Internet. Connections can be made directly to the Router, or to an OfficeConnect Switch or Hub, expanding the number of computers you can have in your network.

Figure 2 Example Network Using a Firewall Router

Router Advantages The advantages of the Router include:

■ Shared Internet connection for both wired and wireless computers

■ High speed 802.11g wireless networking

■ No need for a dedicated, “always on” computer serving as your

Internet connection

■ Cross-platform operation for compatibility with Windows, Unix and

Macintosh computers

■ Easy-to-use, Web-based setup and configuration

■ Provides centralization of all network address settings (DHCP)

■ Acts as a Virtual server to enable remote access to Web, FTP, and other

services on your network

■ Security — Firewall protection against Internet hacker attacks and

encryption to protect wireless network traffic

Package Contents The Router kit includes the following items:

Router Advantages 13

■ One OfficeConnect ADSL Wireless 54Mbps 11g Firewall Router

■ One power adapter for use with the Router

■ Four rubber feet

■ One Telephone Cable

■ One CD-ROM containing this User Guide

■ Installation Guide

■ One Support and Safety Information Sheet

■ One Warranty Flyer

If any of these items are missing or damaged, please contact your retailer.

14 CHAPTER 1: INTRODUCING THE ROUTER

Minimum System and Component Requirements

Your Router requires that the computer(s) and components in your network be configured with at least the following:

■ A computer with an operating system that supports TCP/IP

networking protocols (for example Windows 98/NT/Me/2000/XP, Unix, Mac OS 8.5 or higher).

■ An Ethernet 10 Mbps or 10/100 Mbps NIC for each computer to be

connected to the four-port switch on your Router.

■ An 802.11b or 802.11g wireless NIC.

■ An active ADSL subscription and connection.

■ A Web browser that supports JavaScript, such as Netscape 4.7 or

higher, Internet Explorer 5.0 or higher, or Mozilla 1.2.1 or higher.

Physical Features The front panel of the Router contains a series of indicator lights (LEDs)

that help describe the state of various networking and connection operations.

Figure 3 Router - Front Panel

1 Alert LED

Orange

Fast flash during self test. If self test fails the LED will remain on. Fast flash during software upgrade. Fast flash for software reset to the factory defaults. Fast flash for hardware reset to the factory defaults. The LED is on for 2 seconds when the firewall detects a hacker attack.

Physical Features 15

2Power LED

Green

Indicates that the Router is powered on, and the boot up is successful.

3SYNC LED

Green

If the LED is on it indicates that DSL connection is present. This LED flashes during configuration at power up.

4Online LED

Green

If this LED is on, your username/password has been authenticated successfully with your ISP.

5 Wireless LAN (WLAN) Status LED

Green

If the LED is on it indicates that wireless networking is enabled. If the LED is flashing, the link is OK and data is being transmitted or received. If the LED is off, the Wireless LAN has been disabled in the Router, or there is a problem. Refer to Chapter 6

“Troubleshooting”.

6 LAN Status LEDs

Green

If the LED is on, the link between the port and the next piece of network equipment is OK. If the LED is flashing, the link is OK and data is being transmitted or received. If the LED is off, nothing is connected, or the connected device is switched off, or there is a problem with the connection (refer to Chapter 6

“Troubleshooting”). The port will

automatically adjust to the correct speed and duplex.

16 CHAPTER 1: INTRODUCING THE ROUTER

The rear panel (Figure 4) of the Router contains four LAN ports, one ADSL port, a reset button, a power OK LED, and a power adapter socket.

Figure 4 Router - Rear Panel

7 Wireless Antennae

The antennae should be placed in a ‘V’ position when initially installed.

CAUTION: Do not force the antennae beyond their mechanical stops. Rotating the antennae further may cause damage.

8ADSL Port

Using the RJ-11 cable provided, you should connect your Router to the telephone socket via a splitter.

9Power OK LED

Indicates the Router is powered on, the power adapter is working properly.

10 Power Adapter Socket

Only use the power adapter that is supplied with this Router. Do not use any other adapter.

11 Reset Button

If you want to reset your Router to factory default settings, and cannot access the web management interface (for example, due to a lost password), then you may use this button. Refer to “

Forgotten Password

and Reset to Factory Defaults” on page 104 for further details.

12 Ethernet Ports

Using suitable RJ-45 cables, you can connect your Router to a computer, or to any other piece of equipment that has an Ethernet connection (for example, a hub or a switch). These ports have an automatic MDI/MDIX feature, which means either straight-through or a crossover cable can be used.

INSTALLING THE ROUTER

Introduction This chapter will guide you through a basic installation of the Router,

including:

■ Connecting the Router to the Internet.

■ Connecting the Router to your network.

■ Setting up your computers for networking with the Router.

Safety Information Please note the following:

Positioning the Router

WARNING: Please read the “Safety Information” before you start.

VORSICHT: Bitte lesen Sie den Abschnitt “Wichtige Sicherheitshinweise” sorgfältig durch, bevor Sie das Gerät einschalten.

AVERTISSEMENT: Veuillez lire attentivement la section “Consignes

importantes de sécurité” avant de mettre en route.

You should place the Router in a location that:

■ is conveniently located for connection to the telephone socket.

■ is centrally located to the wireless computers that will connect to the

Router. A suitable location might be on top of a high shelf or similar

furniture to optimize wireless connections to computers in both

horizontal and vertical directions, allowing wider coverage.

■ allows convenient connection to the computers that will be connected

to the four LAN ports on the rear panel, if desired.

■ allows easy viewing of the front panel LED indicator lights, and access

to the rear panel connectors, if necessary.

section in Appendix C

18 CHAPTER 2: INSTALLING THE ROUTER

When positioning your Router, ensure:

■ It is out of direct sunlight and away from sources of heat.

■ Cabling is away from power lines, fluorescent lighting fixtures, and

sources of electrical noise such as radios, transmitters and broadband amplifiers.

■ Water or moisture cannot enter the case of the unit.

■ Air flow around the unit and through the vents in the side of the case

is not restricted. 3Com recommends you provide a minimum of 25 mm (1 in.) clearance.

Using the Rubber

Feet

Use the four self-adhesive rubber feet to prevent your Router from moving around on your desk or when stacking with flat top units. Only stick the feet to the marked areas at each corner of the underside of your Router.

Wall Mounting There are two slots on the underside of the Router that can be used for

wall mounting.

When wall mounting the unit, ensure that it is within reach of the power outlet.

You will need two suitable screws to wall mount the unit. To do this:

1 Ensure that the wall you use is smooth, flat, dry and sturdy and make two

screw holes which are 150 mm (5.9 in.) apart.

2 Fix the screws into wall, leaving their heads 3 mm (0.12 inch) clear of the

wall surface.

3 Remove any connections to the unit and locate it over the screw heads.

When in line, gently push the unit on to the wall and move it downwards to secure.

When making connections, be careful not to push the unit up and off the wall.

CAUTION: Only wall mount single units, do not wall mount stacked units.

Powering Up the Router 19

ock

ess

Users

Powering Up the Router

Connecting the Router

To power up the Router:

1 Plug the power adapter into the power adapter socket located on the

back panel of the Router.

2 Plug the power adapter into a standard electrical wall socket.

3 Press the power button located on the back of the Router.

The first step for installing your Router is to physically connect it to the telephone socket and then connect it to a computer in order to be able to access the Internet. See Figure 5

Figure 5 Connecting the Router

Power Supply Unit

Internet

Telephone Socket

Splitter/ Microfilter Bl

3Com OfficeConnect

DSL Wireless 11g Firewall Route

Your P

Wirel

1 Run the provided telephone cable from the wall jack providing ADSL

service to the ADSL port on your Router. When inserting an ADSL RJ-11 plug, be sure the tab on the plug clicks into position to ensure that it is properly seated. If you are using splitterless ADSL service, add low-pass filters between the ADSL wall jack and your telephones. (These filters pass voice signals through but filter data signals out.)

2 Then:

■ If you are using a full-rate (G.dmt) connection, your service provider

will attach the outside ADSL line to a data/voice splitter. In this case

20 CHAPTER 2: INSTALLING THE ROUTER

you can connect your phones and computer directly to the splitter as shown below (Figure 6

■ If you are using a splitterless (G.lite) connection, then your service

provider will attach the outside ADSL line directly to your phone system. In this case you can connect your phones and computer directly to the incoming ADSL line, but you will have to add low-pass filters to your phones as shown below (Figure 7

Figure 6 Installing with a splitter

Plain Old Telephone System (POTS)

)

Residential Connection Point (NID)

Voice

Splitter

Data

Router

Ethernet

hub or switch

Figure 7 Installing without a splitter

Plain Old Telephone System (POTS)

Residential Connection Point [Network Interface Device (NID)]

Voice

& Data

Voice

& Data

Filter

Connecting the Router 21

Voice

Data

Router

Ethernet

hub or switch

You have now completed the hardware installation of your Router. Next you need to set up your computers so that they can make use of the Router to communicate with the Internet.

3Com recommends that you perform the initial Router configuration from a computer that is directly connected to one of the LAN ports.

If you configure the Router from a wireless computer, note that you may lose contact with the Router if you change the wireless configuration.

To communicate wirelessly with your Router, your wireless NIC should be set as follows:

■ Encryption — none

■ SSID — 3Com

■ Channel — 11

22 CHAPTER 2: INSTALLING THE ROUTER

Obtaining an IP Address Automatically

Windows 2000 If you are using a Windows 2000-based computer, use the following

SETTING UP YOUR COMPUTERS

The Router has the ability to dynamically allocate network addresses to the computers on your network, using DHCP. However, your computers need to be configured correctly for this to take place. To change the configuration of your computers to allow this, follow the instructions in this chapter.

procedure to change your TCP/IP settings:

1 From the Windows Start Menu, select Settings > Control Panel.

2 Double click on Network and Dial-Up Connections.

3 Double click on Local Area Connection.

4 Click on Properties.

5 A screen similar to Figure 8

TCP/IP and click on Properties.

should be displayed. Select Internet Protocol

24 CHAPTER 3: SETTING UP YOUR COMPUTERS

Figure 8 Local Area Properties Screen

6 Ensure that the options Obtain an IP address automatically, and Obtain

DNS server address automatically are both selected as shown in Figure 9 Click OK.

Figure 9 Internet Protocol (TCP/IP) Properties Screen

7 Restart your computer.

Windows XP

Windows 98/ME

Obtaining an IP Address Automatically 25

1 From the Windows Start Menu, select Control Panel.

2 Click on Network and Internet Connections.

3 Click on the Network Connections icon.

4 Double click on LAN or High Speed Connection icon. A screen titled Local

Area Connection Status will appear.

5 Select Internet Protocol TCP/IP and click on Properties.

6 Ensure that the options Obtain an IP address automatically, and Obtain

DNS servers automatically are both selected. Click OK.

7 Restart your computer.

1 From the Windows Start Menu, select Settings > Control Panel.

2 Double click on Network. Select the TCP/IP item for your network card

and click on Properties.

3 In the TCP/IP dialog, select the IP Address tab, and ensure that Obtain IP

address automatically is selected. Click OK.

Macintosh If you are using a Macintosh computer, use the following procedure to

change your TCP/IP settings:

1 From the desktop, select Apple Menu, Control Panels, and TCP/IP.

2 In the TCP/IP control panel, set Connect Via: to Ethernet.

3 In the TCP/IP control panel, set Configure: to Using DHCP Server.

4 Close the TCP/IP dialog box, and save your changes.

5 Restart your computer.

26 CHAPTER 3: SETTING UP YOUR COMPUTERS

Disabling PPPoE and PPTP Client Software

If you have PPPoE client software installed on your computer, you will need to disable it. To do this:

1 From the Windows Start Menu, select Settings > Control Panel.

2 Double click on Internet Options.

3 Select the Connections Tab. A screen similar to Figure 10

displayed.

4 Select the Never dial a connection option.

Figure 10 Internet Properties Screen

should be

Disabling Web Proxy

You may want to remove the PPPoE client software from your computer to free resources, as it is not required for use with the Router.

Ensure that you do not have a web proxy enabled on your computer.

Go to the Control Panel and click on Internet Options. Select the Connections tab and click LAN Settings at the bottom. Make sure that the Use Proxy Server option is unchecked.

RUNNING THE SETUP WIZARD

Accessing the Setup Wizard

The Router setup program is Web-based, which means that it is accessed through your Web browser (Netscape Navigator 4.7 or higher, Internet Explorer 5.0 or higher, or Mozilla 1.2.1 or higher).

To use the Setup Wizard:

1 Ensure that you have at least one computer connected to the Router.

Refer to Chapter 2

2 Launch your Web browser on the computer.

3 Enter the following URL in the location or address field of your browser:

http://192.168.1.1 (Figure 11

Figure 11 Web Browser Location Field (Factory Default)

for details on how to do this.

). The Login screen displays.

28 CHAPTER 4: RUNNING THE SETUP WIZARD

4 To log in as an administrator, enter the password (the default password is

admin) in the System Password field and click Log in (Figure 12

Figure 12 Router Login Screen

5 When you have logged in,

■ if you are logging in for the first time, the Country Selection screen

will appear (Figure 13 menu, and click Apply.

Figure 13 Country Selection Screen

). Please select the country form the drop-down

The Wizard will then launch automatically (refer to Figure 16). You will be guided step by step through a basic setup procedure.

■ if the Router has been configured previously, the Welcome screen will

appear (Figure 14

). There are three tabs: Notice Board, Password and

Wizard.

+ 116 hidden pages