3com 3CRWE52196 Owner's Manual

http://www.3com.com/Part No. DUA0085-5AAA04Published October 2002OfficeConnect® Cable/DSL GatewayWireless Cable/DSL GatewayUser Guide3C8573CRWE52196(3

10 ABOUT THIS GUIDE

100 APPENDIX E: END USER SOFTWARE LICENCE AGREEMENTand developed solely at private expense. The Software is delivered as "Commercial Computer Sof

FISP INFORMATIONInformation Regarding Popular ISPsWAN Types Characteristics Popular ISPsDynamic IP(Clone MAC)Cable modem ISP, non-hostname based. Need

102 APPENDIX F: ISP INFORMATION*Bell includes Bell Advantage, Bell Canada, Bell South, PacBell and Southwestern Bell.Static(DSL)DSL Modem, always on.

GLOSSARY802.11b The IEEE standard to which the 3Com OfficeConnect Wireless Cable/DSL Gateway conforms. This standard provides for 1,2,5 and 11 Mbps da

104 GLOSSARY802.3 standard for Ethernet and is an operation that takes place in a few milliseconds.Bandwidth The information capacity, measured in bit

GLOSSARY 105your Internet browser), the user is sent to the proper IP address. The DNS server address used by the computers on your home network is th

106 GLOSSARYHub A device that regenerates LAN traffic so that the transmission distance of that signal can be extended. Hubs are similar to repeaters,

GLOSSARY 107MAC Media Access Control. A protocol specified by the IEEE for determining which devices have access to a network at any one time.MAC Addr

108 GLOSSARYSSID Service Set Identifier. Some vendors of wireless products use SSID interchangeably with ESSID.Subnet Address An extension of the IP a

GLOSSARY 109WEP Wired Equivalent Privacy. A shared key encryption mechanism for wireless networking. Encryption strength is 40/64 bit or 128 bit.WiFi

1INTRODUCING THE GATEWAYWelcome to the world of networking with 3Com®. In the modern business environment, communication and sharing information is cr

110 GLOSSARY

INDEXAAccess Rights 66AddressesIP 85Administration Password 32, 43Automatic Addressing 87CCable Specifications 90, 93Channels 115Clone MAC address 58C

112 INDEXPPassword 29, 43PC Privileges 65PING 67PPPoE 21, 28, 34, 55, 59PPTP 21, 55, 60Profile 53RRemote Administration 68Reset to Factory Defaults 71

REGULATORY NOTICES FOR THE CABLE/DSL GATEWAYFCC Statement This equipment has been tested and found to comply with the limits for a Class B digital dev

114CE Statement (Europe)This product complies with the European Low Voltage Directive 73/23/EEC, EMC Directive 89/336/EEC as amended by European Direc

REGULATORY NOTICES FOR THE WIRELESS CABLE/DSL GATEWAYChannels Use of the Wireless Cable/DSL Gateway is only authorized for the channels approved by ea

116Information to the UserIf this equipment does cause interference to radio or television reception, which can be determined by turning the equipment

117Exposure to Radio Frequency Radiation: The radiated output power of the 3Com OfficeConnect Wireless Cable/DSL Gateway is far below the FCC radio fr

118RF Exposure Compliance Statement (U.S.)CAUTION: The 3Com OfficeConnect Wireless Cable/DSL Gateway has been certified as a mobile computing device a

12 CHAPTER 1: INTRODUCING THE GATEWAYFigure 1 Example Network Without a GatewayWhen you use the Gateway in your network (Figure 2), it becomes your

3Com Corporation, Corporate Headquarters,5400 Bayfront Plaza, Santa Clara,CA 95052-8145, USA.To learn more about 3Com products and services, visit ou

Gateway Advantages 13Gateway AdvantagesThe advantages of the Gateway include: Shared Internet connection for wired computers. The Wireless Cable/DSL

14 CHAPTER 1: INTRODUCING THE GATEWAYMinimum System and Component RequirementsYour Gateway requires that the computer(s) and components in your networ

Front Panel 15 The Gateway has just been started up and is running a self-test routine, or The administrator has invoked the Reset to Factory Defau

16 CHAPTER 1: INTRODUCING THE GATEWAY4 Wireless LAN (WLAN) Status LED *Available on the OfficeConnect Wireless Cable/DSL Gateway onlyYellowIf the LED

Rear Panel 177 Power Adapter SocketOnly use the power adapter supplied with this Gateway. Do not use any other adapter.8 Ethernet Cable/DSL portUse th

18 CHAPTER 1: INTRODUCING THE GATEWAY

2HARDWARE INSTALLATIONIntroduction This chapter will guide you through a basic installation of the Gateway, including: Connecting the Gateway to the

3Com Corporation5400 Bayfront Plaza Santa Clara, California 95052-8145Copyright © 2002, 3Com Technologies. All rights reserved. No part of this docume

20 CHAPTER 2: HARDWARE INSTALLATIONconnections to computers in both horizontal and vertical directions, allowing wider coverage.When positioning your

Before you Install your Gateway 21CAUTION: Only wall mount single units, do not wall mount stacked units.Before you Install your GatewayBefore you ins

22 CHAPTER 2: HARDWARE INSTALLATIONIf your ISP allocates IP information dynamically over a protocol other than PPPoE, you do not need any further info

Connecting the Gateway 233 Connect the cable or DSL modem to the Internet.4 Connect your computer to one of the four LAN ports on the Gateway using a

24 CHAPTER 2: HARDWARE INSTALLATION

3SETTING UP YOUR COMPUTERSThe Gateway has the ability to dynamically allocate network addresses to the computers on your network, using DHCP. However,

26 CHAPTER 3: SETTING UP YOUR COMPUTERSFigure 6 Local Area Properties Screen6 Ensure that the options Obtain an IP Address automatically, and Obtain

Obtaining an IP Address Automatically 27Windows XP1 From the Windows Start menu, select Control Panel.2 Click on Network and Internet Connections.3 Cl

28 CHAPTER 3: SETTING UP YOUR COMPUTERSDisabling PPPoE and PPTP Client SoftwareIf you have PPPoE or PPTP client software installed on your computer, y

4RUNNING THE SETUP WIZARDAccessing the WizardThe Gateway setup program is Web-based, which means that it is accessed through your Web browser (Netscap

CONTENTSABOUT THIS GUIDENaming Convention 7Conventions 8Feedback about this User Guide 8Related Documentation 9Product Registration 91 INTRODUCING THE

30 CHAPTER 4: RUNNING THE SETUP WIZARDFigure 10 Gateway Login Screen5 If the password is correct, the Country Selection screen will appear (on the W

Accessing the Wizard 31or If your Gateway has not been configured before, the Wizard will launch automatically (refer to Figure 13).7 Click Next.8 Yo

32 CHAPTER 4: RUNNING THE SETUP WIZARDPassword Figure 14 Change Administration Password ScreenWhen the Change Administration Password screen (Figure

Accessing the Wizard 33The Daylight Savings option advances the system clock by one hour. It does not cause the system clock to be updated for dayligh

34 CHAPTER 4: RUNNING THE SETUP WIZARDPPPoE ModeFigure 17 PPPoE ScreenTo setup the gateway for use with a PPP over Ethernet (PPPoE) connection, use

Accessing the Wizard 35Dynamic IP Address ModeTo setup the Gateway for use with a dynamic IP address connection:1 Select the ISP provides configuratio

36 CHAPTER 4: RUNNING THE SETUP WIZARDStatic IP ModeTo setup the Gateway for use with a static IP address connection, use the following procedure:1 Se

Accessing the Wizard 37PPTP ModeFigure 21 PPTP Mode ScreenTo setup the gateway for use with a PPTP connection, use the following procedure:1 Enter y

38 CHAPTER 4: RUNNING THE SETUP WIZARD6 IP settings must be used when establishing a PPTP connection. Fill in the Initial IP Address and the Initial S

Accessing the Wizard 39make your required changes. To disable DHCP, select Do not enable the DHCP server. Click Next when you have finished.If you hav

Windows 95/98/ME 27Macintosh 27Disabling PPPoE and PPTP Client Software 28Disabling Web Proxy 284 RUNNING THE SETUP WIZARDAccessing the Wizard 29Passw

40 CHAPTER 4: RUNNING THE SETUP WIZARDIt is very important that you set up your wireless clients to use the same Service Area Name or SSID as the one

5GATEWAY CONFIGURATIONNavigating Through the Gateway Configuration PagesThis chapter describes all the screens available through the Gateway configura

42 CHAPTER 5: GATEWAY CONFIGURATION Status and Logs - displays the current status and activity logs of the Gateway. Support - contains a comprehensi

Welcome Screen 43Notice Board Figure 28 Notice Board ScreenThe Notice Board is used to display configuration warning messages. For example, you woul

44 CHAPTER 5: GATEWAY CONFIGURATIONIf you have forgotten your password you need to reset the Gateway. See “Forgotten Password and Reset to Factory Def

LAN Settings 45The LAN Settings screen is used to specify the LAN IP address of your Gateway, and to configure the DHCP server.1 Select Unit Configura

46 CHAPTER 5: GATEWAY CONFIGURATIONAs the IP address is fixed to a MAC address, then each particular computer will normally be issued with the same IP

Wireless Settings 47channel number. Usually the Wireless computers will scan to find the correct channel, but if they don't you must configure th

48 CHAPTER 5: GATEWAY CONFIGURATIONEncryption Figure 34 Encryption ScreenWired Equivalent Privacy or WEP allows you to encrypt the traffic between y

Wireless Settings 49Encryption KeysFigure 35 Encryption Keys ScreenA Key is a hexadecimal (0-9, A-F) number used to encrypt and decrypt the data. Th

PC Privileges 65Security 67System Tools 69Restart 69Time Zone 69Configuration 70Upgrade 71Status and Logs 72Status 73Logs 73Support 736 TROUBLESHOOTIN

50 CHAPTER 5: GATEWAY CONFIGURATION Passphrase - This is another common method and similar to the 3Com Encryption string. In 64 bit WEP, the passphra

Wireless Settings 51same Service Area Name/SSID, channel and encryption settings as the Gateway can connect to it. Select Only Authorised Wireless PCs

52 CHAPTER 5: GATEWAY CONFIGURATION3 Press Add.Click Close to discard all changes.Modifying a MAC Address1 Click on the MAC address to be modified in

Wireless Settings 53Client List Figure 39 Client List ScreenThe Wireless Client List provides details on the devices that are connected to the Wirel

54 CHAPTER 5: GATEWAY CONFIGURATION Service Area Name/SSID of the GatewayThis is configured on the Configuration tab under the Wireless Settings opti

Internet Settings 55Internet Settings Before you can configure the Gateway, you need to know the IP information allocation method used by your ISP. T

56 CHAPTER 5: GATEWAY CONFIGURATIONWhen you install the Gateway, you will not need to use the dialup VPN on your PC anymore.Connection to ISPFigure 41

Internet Settings 57Static IP AddressFigure 42 Connection Parameters Screen - Static IPTo setup the Gateway for use with a Static IP address connect

58 CHAPTER 5: GATEWAY CONFIGURATIONDynamic IP AddressFigure 43 Connection Parameters Screen - Dynamic IPIf this mode is selected, your IP Address, S

Internet Settings 59 Use this PC’s MAC address - This field is automatically filled in with the MAC address of the PC you are using to configure the

C TECHNICAL SPECIFICATIONSD SAFETY INFORMATIONE END USER SOFTWARE LICENCE AGREEMENTF ISP INFORMATIONGLOSSARYINDEXREGULATORY NOTICES FOR THE CABLE/DSL

60 CHAPTER 5: GATEWAY CONFIGURATION6 Enter your PPP over Ethernet service name in the PPPoE Service Name text box. Not all ISPs require a PPPoE servic

Firewall 616 Select an idle time from the Maximum Idle Time drop-down list.This value will correspond to the amount of idle time (no Internet activity

62 CHAPTER 5: GATEWAY CONFIGURATIONVirtual ServerActivating and configuring a virtual server allows one or more of the computers on your network to fu

Firewall 63The port numbers are specified using a comma-separated list, with hyphens to denote port number ranges. So for example, entering 2, 3, 5-7

64 CHAPTER 5: GATEWAY CONFIGURATIONFigure 50 Special Application Settings ScreenOr select Other to specify a suitable name for the special applicati

Firewall 65PC Privileges Figure 52 PC Privileges ScreenSelect PC Privileges to display the PC Privilege setup screen (Figure 52).Access from the loc

66 CHAPTER 5: GATEWAY CONFIGURATIONIn addition to the four authorised services listed, you can choose to allow or block access to other services. You

Firewall 674 Select authorized services by clicking in the appropriate check box(es).In addition to the four authorised services listed, you can choos

68 CHAPTER 5: GATEWAY CONFIGURATIONThis feature is enabled by clicking on the check box so that a tick can be seen and then select Apply. 3Com recomme

System Tools 69System Tools The main frame of the System Tools screen includes four administration items: Restart, Time Zone, Configuration, and Upgra

ABOUT THIS GUIDEThis guide describes how to install and configure the OfficeConnect Cable/DSL Gateway (3C857) and the OfficeConnect Wireless Cable/DSL

70 CHAPTER 5: GATEWAY CONFIGURATIONChoose the time zone that is closest to your actual location. The time zone setting is used by the system clock whe

System Tools 71Reset to Factory DefaultIf you want to reset the settings on your Gateway to those that were loaded at the factory, click RESET. You wi

72 CHAPTER 5: GATEWAY CONFIGURATIONStatus and Logs Figure 60 Status and Logs ScreenSelecting Status and Logs from the main menu displays the Status

Status and Logs 73Status Status will display the current unit status, including a summary of the configuration Logs Logs will allow you to view both t

74 CHAPTER 5: GATEWAY CONFIGURATION

6TROUBLESHOOTINGBasic Connection Checks Check that the Gateway is connected to your computers and to the cable/DSL modem, and that all the equipment

76 CHAPTER 6: TROUBLESHOOTINGchoose Run and then enter winipcfg. Check that the computer has an IP address of the form 192.168.1.xxx (where xxx is in

Wireless Networking 77Gateway connection to the Internet. Also, other computer users will lose their network connections whilst this process is taking

78 CHAPTER 6: TROUBLESHOOTING Ensure that the Wireless Clients are using the same SSID or Service Area Name as the Gateway. The SSID is case-sensitiv

Alert LED 79centre of the network with Wireless computers distributed around it. Applications are generally available with the computer wireless card

8 ABOUT THIS GUIDEConventions Table 1 and Table 2 list conventions that are used throughout this guide.Feedback about thisUser GuideYour suggestions a

80 CHAPTER 6: TROUBLESHOOTING1 Remove power from the Gateway and disconnect the Cable/DSL modem and all your computers, except for the one computer wi

Frequently Asked Questions 81There are only 4 LAN ports on the Gateway. How are additional computers connected?You can expand the number of connection

82 CHAPTER 6: TROUBLESHOOTING

AUSING DISCOVERYRunning the Discovery Application3Com provides a user friendly Discovery application for detecting the Gateway on the network.Windows

84 APPENDIX A: USING DISCOVERYFigure 63 Discovered Gateway Screen3 Figure 64 shows an example Discovered Devices screen. Highlight the Wireless Cabl

BIP ADDRESSINGThe Internet Protocol SuiteThe Internet protocol suite consists of a well-defined set of communications protocols and several standard a

86 APPENDIX B: IP ADDRESSINGFor your network to work correctly, all devices on the network must have: The same sub-network address. The same subnet

How does a Device Obtain an IP Address and Subnet Mask? 87This type of IP Address operates on a subnet mask of ‘255.255.0.0’.See Table 4 for an exampl

88 APPENDIX B: IP ADDRESSINGan IP address at random from the industry standard subnet of 169.254.x.x (with a subnet mask of 255.255.0.0). If two devic

CTECHNICAL SPECIFICATIONSThis section lists the technical specifications for the OfficeConnect Cable/DSL Gateway and the Wireless Cable/DSL Gateway.Ca

Conventions 9Example: OfficeConnect Cable/DSL Gateway and Wireless Cable/DSL Gateway User Guide Part Number DUA0085-5AAA04 Page 24Do not use this e

90 APPENDIX C: TECHNICAL SPECIFICATIONSSafety: UL 1950, EN 60950CSA 22.2 #950IEC 60950EMC: EN 55022 Class BEN 55024AS/NZS 3548 BFCC Part 15 Class B*IC

91Wireless Cable/DSL GatewayInterfacesCable or DSL modem connection - 10/100 FD.LAN connection - four 10Mbps/100Mbps dual speed Ethernet ports (10BASE

92 APPENDIX C: TECHNICAL SPECIFICATIONSStandards Functional: ISO 8802/3IEEE 802.3IEEE 802.11b, WiFiSafety: UL 1950, EN 60950CSA 22.2 #950IEC 60950EMC:

93Wireless Performance The Wireless Cable/DSL Gateway complies with the IEEE 802.11b specification and conforms to the WiFi interoperability test stan

94 APPENDIX C: TECHNICAL SPECIFICATIONS

DSAFETY INFORMATIONImportant Safety InformationWARNING: Warnings contain directions that you must follow for your personal safety. Follow all directio

96 APPENDIX D: SAFETY INFORMATIONWARNING: Disconnect the power adapter before moving the unit.WARNING: RJ-45 ports. These are shielded RJ-45 data sock

97VORSICHT: Es sind keine von dem Benutzer zu ersetzende oder zu wartende Teile in dem Gerät vorhanden. Wenn Sie ein Problem mit dem Gateway haben, da

98 APPENDIX D: SAFETY INFORMATIONAVERTISSEMENT: L’appareil fonctionne à une tension extrêmement basse de sécurité qui est conforme à la norme CEI 950.

EEND USER SOFTWARE LICENCE AGREEMENT3Com CorporationEND USER SOFTWARE LICENSE AGREEMENTYOU SHOULD CAREFULLY READ THE FOLLOWING TERMS AND CONDITIONS BE