3COM WL-542 User Manual

OfficeConnect

ADSL Wireless 11g Firewall Router User Guide

Model WL-542

3CRWDR100A-72 3CRWDR100B-72 3CRWDR100U-72

http://www.3com.com/

Part No. DUA100A-72AAA02 Published August 2005

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

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CONTENTS

ABOUT THIS GUIDE

Naming Convention 5 Conventions 6 Feedback About this User Guide 6 Related Documentation 7

1 INTRODUCING THE ROUTER

OfficeConnect ADSL Wireless 11g Firewall Router 9 Router Advantages 11 Package Contents 11 Minimum System and Component Requirements 12 Front Panel 12 Rear Panel 13

2 INSTALLING THE ROUTER

Introduction 15

Safety Information 15

Positioning the Router 15

Using the Rubber Feet 16 Powering Up the Router 16 Connecting the Router 16

3 SETTING UP YOUR COMPUTERS

Obtaining an IP Address Automatically 21

Windows 2000 21

Windows XP 23

Windows 98/ME 23

Macintosh 23 Disabling PPPoE and PPTP Client Software 24 Disabling Web Proxy 24

4 RUNNING THE SETUP WIZARD

Accessing the Setup Wizard 25

Setup Wizard - Connection Type 27

5 CONFIGURING THE ROUTER

Navigating Through the Router Configuration Pages 35

Main Menu 35

Status Screen 35

Status 35

LAN Setup 36

LAN Settings 37

Wireless Settings 39

Configuring Wireless 39 Encryption 40

Internet Settings 46

Connection Type 46 DNS 55 Hostname & MAC 56

Firewall 57

Special Applications 58 Virtual Servers 59 Client IP Filters 60 MAC Address Filtering 65 DMZ 66

Advanced 68

Routing 70 DDNS 73 SNMP 74

System Tools 75

Restart Router 75 Reset to Factory Default 76 Backup/Restore Settings 76 Upgrade 77 Admin Password 77 Time and Time Zone 78 Syslog Server 79

Status and Logs 80

Status 80

ADSL Status 80

ATM PVC Status 81

Logs 81 Support/Feedback 82

Support 82

Feedback 82

6 TROUBLESHOOTING

Basic Connection Checks 83 Browsing to the Router Configuration Screens 83 Connecting to the Internet 84 Forgotten Password and Reset to Factory Defaults 84 Wireless Networking 85 Recovering from Corrupted Software 87 Frequently Asked Questions 88

A IP ADDRESSING

The Internet Protocol Suite 89 Managing the Router over the Network 89

IP Addresses and Subnet Masks 89 How does a Device Obtain an IP Address and Subnet Mask? 91

DHCP Addressing 91

Static Addressing 91

Auto-IP Addressing 91

B TECHNICAL SPECIFICATIONS

OfficeConnect ADSL Wireless 11g Firewall Router 93

Standards 94

C SAFETY INFORMATION

D END USER SOFTWARE LICENSE AGREEMENT

E OBTAINING SUPPORT FOR YOUR PRODUCT

Register Your Product 103 Purchase Value-Added Services 103 Troubleshoot Online 104 Access Software Downloads 104 Telephone Technical Support and Repair 104 Contact Us 105

GLOSSARY

REGULATORY NOTICES

INDEX

ABOUT THIS GUIDE

This guide describes how to install and configure the OfficeConnect ADSL Wireless 11g Firewall Router (3CRWD100x-72).

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 ADSL 11g Wireless 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

Naming Convention Throughout this guide, the OfficeConnect ADSL Wireless 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.

6 ABOUT THIS GUIDE

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

Tab le 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.

Tab le 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

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)

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 11g Firewall Router

The OfficeConnect ADSL Wireless 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,

10 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 11

■ One OfficeConnect ADSL Wireless 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.

12 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.

Front Panel 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

3CRWDR100A-72

OfficeConnect ADSL Wireless 11g Firewall Router

Power SYNC Online WLAN 1 2 3 4

LAN Status

Green = 100M, Yellow = 10M, Flash = Activity

1Power LED

Green

Indicates that the Router is powered on.

2SYNC LED

Green

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

Rear Panel 13

3Online LED

Green

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

4 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”.

5 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.

Rear Panel The rear panel (Figure 4) of the Router contains four LAN ports, one ADSL

port, a reset button, a power switch, and a power adapter socket.

Figure 4 Router - Rear Panel

7 98 11106

12 VDC

1A MAX

6 Wireless Antennae

The antennae on the product 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.

ADSL ResetPower LAN4 LAN3 LAN2 LAN1

14 CHAPTER 1: INTRODUCING THE ROUTER

7ADSL Port

Using the RJ11 cable provided, you should connect your Router to the telephone socket via a splitter.

8 Power Adapter Socket

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

9 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 84 for further details.

10 Power Switch

Push this switch to the “in” position to turn the unit on. In the “out” position, the unit is off.

11 Ethernet Ports

Using suitable RJ45 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

16 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

Powering Up the Router

Connecting the Router

Use the four self-adhesive rubber feet to prevent your Router from

Feet

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.

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

ock

ess

Users

Connecting the Router 17

Power Supply Unit

Internet

Telephone Socket

Splitter/ Microfilter Bl

Your P

3Com OfficeConnect

DSL Wireless 11g Firewall Route

Wirel

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

service to the ADSL port on your ADSL 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

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

)

18 CHAPTER 2: INSTALLING THE ROUTER

Figure 6 Installing with a splitter

Figure 7 Installing without a splitter

Connecting the Router 19

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

20 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

22 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 23

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.

24 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)

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

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

for details on how to do this.

). The Login screen displays.

26 CHAPTER 4: RUNNING THE SETUP WIZARD

Figure 12 Router Login Screen

5 When you have logged in either:

■ The Status screen will appear (Figure 13). Select Setup Wizard from

the menu. or

■ If your Router has not been configured before, the Wizard will launch

automatically (refer to Figure 14

6 You will be guided step by step through a basic setup procedure.

Figure 13 Status Screen

Accessing the Setup Wizard 27

Setup Wizard -

Connection Type

Figure 14 Connection Type Screen

The Connection Type screen allows you to set up the Router for the type of Internet connection you have. Before setting up your connection type, have your account information from your ISP ready.

Select a DSL mode from the following:

■ PPPoE — PPP over Ethernet, providing routing for multiple PCs, see

page 28

■ PPPoA — PPP over ATM, providing routing for multiple PCs, see

page 29

■ Bridge Mode (for a single PC) — RFC1483 Bridged Mode, for single

PCs only, see page 31

■ Routing Mode over ATM — RFC1483 Routed Mode, for multiple PCs,

see page 32

■ Dynamic/Fixed IP in 1483 Bridge Mode (for multiple PCs), see page 33

and click Next.

For further information on selecting a mode see “Internet Settings”

page 46

28 CHAPTER 4: RUNNING THE SETUP WIZARD

PPPoE Mode

Figure 15 PPPoE Screen

To set up the router for use with a PPP over Ethernet (PPPoE) connection, use the following procedure:

1 Enter your PPP over Ethernet user name in the Username text box. 2 Enter your PPP over Ethernet password in the Password text box. 3 Re-type your PPP over Ethernet password in the Retype Password text

box.

4 Enter your VPI and VCI information in the VPI/VCI text boxes. 5 Select the encapsulation type (LLC or VC MUX) in the Encapsulation

drop-down list. This information will have been provided to you by your ISP.

6 Check all of your settings, and then click Next. The Wireless Settings

screen is displayed.

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