3COM WL-603 User Manual

Wireless 11n ADSL Firewall Router

User Guide

WL-603

3CRWDR300A-73 3CRWDR300B-73

http://www.3Com.com/

Part No. 10016794 Rev AA

Published July 2008

3Com Corporation

350 Campus Drive,

Marlborough, MA

USA 01752-3064

Copyright © 2004, 2005, 2006, 2007, 2008, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.

3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.

3Com Corporation provides this documentation without warranty, term, or condition of any kind, either implied or expressed, including, but not limited to, the implied warranties, terms or conditions of merchantability, satisfactory quality, and fitness for a particular purpose. 3Com may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time.

If there is any software on removable media described in this documentation, it is furnished under a license agreement included with the product as a separate document, in the hard copy documentation, or on the removable media in a directory file named LICENSE.TXT or !LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.

UNITED STATES GOVERNMENT LEGEND

If you are a United States government agency, then this documentation and the software described herein are provided to you subject to the following:

All technical data and computer software are commercial in nature and developed solely at private expense. Software is delivered as “Commercial Computer Software” as defined in DFARS 252.227-7014 (June 1995) or as a “commercial item” as defined in FAR 2.101(a) and as such is provided with only such rights as are provided in 3Com’s standard commercial license for the Software. Technical data is provided with limited rights only as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June 1987), whichever is applicable. You agree not to remove or deface any portion of any legend provided on any licensed program or documentation contained in, or delivered to you in conjunction with, this User Guide.

Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries.

3Com, and the 3Com logo are registered trademarks of 3Com Corporation.

Intel and Pentium are registered trademarks of Intel Corporation. Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft Corporation. Novell and NetWare are registered trademarks of Novell, Inc. UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company, Ltd.

Netscape Navigator is a registered trademark of Netscape Communications.

JavaScript is a trademark of Sun Microsystems

Wi-Fi and the Wi-Fi logo are registered trademarks of the WI-Fi Alliance.

IEEE and 802 are trademarks of the Institute of Electrical and Electronics Engineers, Inc.

All other company and product names may be trademarks of the respective companies with which they are associated.

ENVIRONMENTAL STATEMENT

It is the policy of 3Com Corporation to be environmentally-friendly in all operations. To uphold our policy, we are committed to:

Establishing environmental performance standards that comply with national legislation and regulations.

Conserving energy, materials and natural resources in all operations.

Reducing the waste generated by all operations. Ensuring that all waste conforms to recognized environmental standards. Maximizing the recyclable and reusable content of all products.

Ensuring that all products can be recycled, reused and disposed of safely.

Ensuring that all products are labelled according to recognized environmental standards.

Improving our environmental record on a continual basis.

End of Life Statement

3Com processes allow for the recovery, reclamation and safe disposal of all end-of-life electronic components.

Regulated Materials Statement

3Com products do not contain any hazardous or ozone-depleting material.

Environmental Statement about the Documentation

The documentation for this product is printed on paper that comes from sustainable, managed forests; it is fully biodegradable and recyclable, and is completely chlorine-free. The varnish is environmentally-friendly, and the inks are vegetable-based with a low heavy-metal content.

CONTENTS

ABOUT THIS GUIDE

Naming Convention			7
Conventions	8
Feedback About This User Guide					9
Related Documentation				9
INTRODUCING THE ROUTER
Wireless 11n ADSL Firewall Router					11
Router Advantages			14
Package Contents		14
Minimum System and Component Requirements 15
Physical Features		15
INSTALLING THE ROUTER
Introduction	21
Safety Information				21
Positioning the Router				21
Using the Rubber Feet 22
Wall Mounting		22
Mounting Instructions for Cement Walls 22
Mounting Instructions for
Wood Walls		23
Powering Up the Router				23
Connecting the Router				23

SETTING UP YOUR COMPUTERS

Obtaining an IP Address Automatically 27

Windows 2000 27

Windows Vista		29
Windows XP	30
Macintosh	30
Disabling PPPoE and PPTP Client Software 31
Disabling Web Proxy		31

RUNNING THE SETUP WIZARD

Accessing the Router using the 3Com Detect Application 33 Running the 3Com Detect Application 33

Accessing the Setup Wizard	35
Wizard - Change Password	38
Wizard - Time and Time Zone 39
Wizard - Connection Type	40
Wizard - LAN Settings 46
Wizard - Wireless Setting	47

Wizard - Configuration Summary 52

CONFIGURING THE ROUTER

Navigating through the Router Configuration Screens 53

Main Menu		53
Welcome Screen			53
Status	53
LAN Settings		54
LAN Settings Unit Configuration 54
DHCP Clients List				55
Wireless Settings			57
Configuration			58
Encryption		60
WPS	65
Connection Control				67
Client List		68
WMM	68
WDS	71
Advanced		74
Internet Settings			76
ATM PVC		76

DNS		88
Clone MAC address						89
Firewall		90
SPI	90
Special Applications						94
Virtual Servers					95
DMZ		96
PC Privileges				97
Schedule Rule					99
URL Filter			100
Advanced		101
Security			101
VLAN		104
Static Routes				106
RIP	108
DDNS		110
SNMP		111
Syslog		112
Proxy ARP			113
QoS Settings				114
Traffic Mapping					115
VPN 117
System Tools			124
Restart Router					124
Configuration					124
Upgrade			125
Time Zone			126
Ping		127
Traceroute			128
DNS Lookup				129
Diagnostic			129
Status and Logs				130
Status		130
ADSL Status				131
ATM PVC Status					131
Routing Table					132
Logs		132
Traffic Statistics					133

Support/Feedback 134
Support	134
Feedback	134
TROUBLESHOOTING
Basic Connection Checks		135
Browsing to the Router Configuration Screens 136
Connecting to the Internet		136

Forgotten Password and Reset to Factory Defaults 138

Wireless Networking 139
Recovering from Corrupted Software 140
Power Adapter 141
Frequently Asked Questions	143
IP ADDRESSING
The Internet Protocol Suite	145

Managing the Router over the Network 145 IP Addresses and Subnet Masks 145

How does a Device Obtain an IP Address and Subnet Mask? 147

DHCP Addressing	147
Static Addressing	147
Auto-IP Addressing	148

TECHNICAL SPECIFICATIONS

3Com Wireless 11n Cable/DSL Firewall Router 149

Standards 151

SAFETY INFORMATION

END USER SOFTWARE LICENSE AGREEMENT

OBTAINING SUPPORT FOR YOUR 3COM PRODUCTS

Register Your Product to Gain Service Benefits 160 Solve Problems Online 160

Purchase Extended Warranty and Professional Services 160 Access Software Downloads 161

Contact Us 161

Telephone Technical Support and Repair 161

GLOSSARY

REGULATORY NOTICES

INDEX

ABOUT THIS GUIDE

This guide describes how to install and configure the 3Com Wireless 11n

ADSL Firewall Router (3CRWDR300A-73, 3CRWDR300B-73).

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.

This manual covers both Annex A (ADSL over POTS) and Annex B (ADSL over ISDN) Routers. The only difference is they style of ADSL connector and type of cable supplied with your Router for connection to your telephone line.

If a release note is shipped with the 3Com Wireless 11n ADSL 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

Naming Convention Throughout this guide, the 3Com Wireless 11n ADSL Firewall Router is referred to as the “Router”.

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

8 ABOUT THIS GUIDE

Conventions	Table 1 and Table 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”		When you see the word “enter” in this guide, you must type
	and “type”		something, and then press Return or Enter. Do not press
			Return or Enter when an instruction simply says “type.”
	Keyboard key names		If you must press two or more keys simultaneously, the key
			names are linked with a plus sign (+). Example:
			Press Ctrl+Alt+Del
	Words in italics		Italics are used to:
			■ 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 Your suggestions are very important to us. They will help make our This User Guide documentation more useful to you. Please e-mail comments about this

document to 3Com at:

[e-mail]

Please include the following information when commenting:

■Document title

■Document part number (on the title page)

■Page number (if appropriate)

Example:

■3Com Wireless 11n ADSL Firewall Router User Guide

■Part Number 10016794 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 E.

Related	In addition to this guide, each Router document set includes one
Documentation	Installation Guide. This guide contains the instructions you need to install
	and configure your Router.

10 ABOUT THIS GUIDE

1	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.

Wireless 11n ADSL The 3Com Wireless 11n ADSL Firewall Router is designed to provide a Firewall Router 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 shows an example network without a Router. In this network, 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.

12 CHAPTER 1: INTRODUCING THE ROUTER

Figure 1 Example Network Without a Router

When you use the Router in your network (Figure 2 and Figure 3), 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 (with splitter)

Wireless 11n ADSL Firewall Router 13

Figure 3 Example Network Using a Firewall Router (without splitter)

14 CHAPTER 1: INTRODUCING THE ROUTER

Router Advantages The advantages of the Router include:

■Shared Internet connection for both wired and wireless computers

■High speed 802.11n 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:

■One 3Com Wireless 11n ADSL Firewall Router

■One power adapter for use with the Router

■Four rubber feet

■One telephone cable (only for 3CRWDR300A-73 version)

■One Ethernet cable (Two Ethernet cables in 3CRWDR300B-73 version)

■One CD-ROM containing this user guide, copies of the quick install guide in various languages and the 3Com Detect application.

■Installation guide

■Support and Safety sheet

■Warranty sheet

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

Minimum System and Component Requirements 15

Minimum System

and Component

Requirements

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

■A computer with an operating system that supports TCP/IP networking protocols (for example Windows 2000/XP,/Vista, Unix, Mac OS 8.5 or higher).

■An Ethernet 10 Mbps or 10/100 Mbps or 10/100/1000 Mbps NIC for each computer to be connected to the LAN port on your Router.

■An 802.11b, 802.11g or 802.11n draft2.0 compliant wireless NIC.

■An active ADSL subscription and connection.

■A Web browser that supports JavaScript, such as Netscape 4.7 or higher, Internet Explorer 6.0 or higher, or Mozilla 1.2.1 or higher, or Apple’s Safari.

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 4 Router - Front Panel

1

2

3

4

5

6

7

16CHAPTER 1: INTRODUCING THE ROUTER

1Power LED (Illuminated Logo)

White

The 3Com logo serves as power OK indicator. This LED will light if the router is receiving power from the power adapter. If it is not lit check the power adapter connections. Refer to Chapter 6 Troubleshooting.

2Alert LED

Amber

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.

3ADSL Sync

Blue

LED on indicates the Internet connection is on. This LED flashes during configuration at power up.

4ADSL Data

Blue

Fast flash means transmitting/receiving data. Slow flash means ADSL connection is down.

5Wireless LAN (WLAN) Status LED

Blue

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.

6LAN Status LEDs (4 indicators)

Blue

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.

Physical Features 17

7WPS LED

Blue

WiFi Protected Setup (WPS) is a standard for easy and secure establishment of a wireless network, allowing wireless clients to connect securely to routers and access points. The WPS LED shows the status of the WPS function. It has a number of modes to help monitor the status of clients connecting to the Router using the WPS protocol. The status is shown by three different flashing rates: slow, medium and quick and when light constantly.

Note: The WPS function will be enabled for 2 minutes once WPS is enabled either by pressing the button or by starting the PIN mode via the web interface. This time will end before 2 minutes if a client has successfully connected. Only one client should be connected to the Router using WPS at any one time. Attempting to connect two or more clients at once may result in connection failures.

When the WPS button is pressed, or WPS is initiated using the PIN method in the web interface, the WPS LED will flash at a medium rate for up to 2 minutes to indicate that a WPS connection can be made. When a connection attempt is underway, the LED will flash slowly.

If the connection has been successful, the WPS LED will remain illuminated for 5 minutes. If the connection attempt has failed, the WPS LED will flash rapidly for 5 minutes. You can re-try the connection by pressing the WPS button, when the connection process will re-start.

If you want to add a further client to the Router, you do not need to wait for the 5 minute period to end. You can press the WPS button (or use the PIN method via the web interface) as soon as the first client is successfully connected.

18 CHAPTER 1: INTRODUCING THE ROUTER

The rear panel (Figure 5) of the Router contains one ADSL port, four LAN ports, one WiFi on/off button, a reset button, one power adapter socket, and one WPS button.

Figure 5 Router - Rear Panel

1Wireless Antennae

The antennaes 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.

2ADSL Port

RJ-11 port (3CRWDR300A-73)/ RJ-45 port (3CRWDR300B-73), connect this port with the telephone socket.

3Ethernet Ports (4 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.

Physical Features 19

4WiFi On/Off button

Use this button to turn on/turn off the wireless function. Press the button for 3 seconds.

5Reset Button

If you want to reset your Router to factory default settings, or 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 138 for further details.

6Power Adapter Socket

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

7WPS button

Press this button for 3 seconds when making WPS setup. Pushing the WPS button will automatically enable WPS. Then initiate the WPS procedure on the wireless NIC within two minutes. Refer to your wireless NIC's documentation on this procedure. The wireless NIC will then be securely added to your wireless network.

20 CHAPTER 1: INTRODUCING THE ROUTER

2	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:
	WARNING: Please read the Safety Information section in Appendix C
	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.

Positioning the

Router

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 LED indicator lights, and access to the rear panel connectors, if necessary.

22 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	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.
	Please be careful when you put 3Com 11n ADSL Router on top of
	another unit, if the unit underneath is hot, this may impact the reliability
	of 3Com 11n ADSL Router.
Wall Mounting	There are two slots on the underside of the Router that can be used for
	wall mounting. The Router must be mounted with the LEDs facing
	upwards.
	When wall mounting the unit, ensure it is within reach of the power
	outlet. When wall mounting the unit, ensure that the rubber feet are not
	fixed.

Mounting To wall mount the unit:

Instructions for

Cement Walls

1Make two holes 98 mm (3.9 in.) apart and insert two nylon or similar screw anchors that are suitable for the wall construction.

2Fix two suitable screws into the anchors, leaving their heads 3 mm (0.12 in.) clear of the wall surface. The screws should be at least 30 mm (1.2 in.) long.

3Remove any connections in the Router and locate it over the screw heads. When in line, gently push the Router on to the wall and move it downwards to secure.

Powering Up the Router 23

Mounting To wall mount the unit:

Instructions for

Wood Walls

1Make two holes 98 mm (3.9 in.) apart.

2Fix two suitable screws directly into the wall, leaving their heads 3 mm (0.12 in.) clear of the wall surface. The screws should be at least 20 mm (0.75 in.) long.

3Remove any connections in the Router and locate it over the screw heads. When in line, gently push the Router on to the wall and move it downwards to secure.

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

Powering Up the		To power up the Router:
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.
Connecting the		The first step for installing your Router is to physically connect it to the
Router		telephone socket and then connect it to a computer in order to be able to
		access the Internet. See Figure 6 and Figure 7:

24 CHAPTER 2: INSTALLING THE ROUTER

Figure 6 Connecting the Router (with splitter)

Figure 7 Connecting the Router (without splitter)

1Run the provided telephone cable from the wall jack providing ADSL service to the ADSL port on your Router. When inserting an ADSL RJ-11(Annex A) or RJ-45 (Annex B) 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.)

Connecting the Router

25

2Then:

■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 8):

or

■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 9)

Figure 8 Installing with a splitter

Plain Old

Telephone

System (POTS)

Residential	Voice
Connection
Point (NID)

Splitter

Data

ADSL Router

or

Ethernet

switch

26 CHAPTER 2: INSTALLING THE ROUTER

Figure 9 Installing without a splitter

Plain Old

Telephone

System (POTS)

Residential

Connection

Point [Network

Interface

Device (NID)]

Voice

Voice	Filter
& Data

Voice

& Data

ADSL Router

Data

or

Ethernet

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

3	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.

Obtaining an IP

Address

Automatically

Windows 2000 If you are using a Windows 2000-based computer, use the following procedure to change your TCP/IP settings:

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

2Double click on Network and Dial-Up Connections.

3Double click on Local Area Connection.

4Click on Properties.

5A screen similar to Figure 10 should be displayed. Select Internet Protocol TCP/IP and click on Properties.

28 CHAPTER 3: SETTING UP YOUR COMPUTERS

Figure 10 Local Area Properties Screen

6Ensure that the options Obtain an IP address automatically, and Obtain DNS server address automatically are both selected as shown in

Figure 11. Click OK.

Figure 11 Internet Protocol (TCP/IP) Properties Screen

7 Restart your computer.