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3Com 3CRWE51196 - OfficeConnect Wireless Cable/DSL..., User Manual

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3Com 3CRWE51196 - OfficeConnect Wireless Cable/DSL... User Manual Download Page 59

Frequently Asked Questions

59

6

When the upload has completed, the Gateway will restart, run the self-test and, if 
successful, resume normal operation. The Alert LED will go out.

7

Refer to the Installation Guide to reconnect your Gateway to the Cable/DSL 
modem and the computers in your network. Do not forget to reconfigure the 
computer you used for the software upload.

If the Gateway does not resume normal operation following the upload, it may be 
faulty. Contact your supplier for advice.

Frequently Asked 
Questions

How many computers on the LAN does the Cable/DSL Gateway support?

A maximum of 253 computers on the LAN are supported.

How many wireless clients does the Cable/DSL Gateway support?

A maximum of 32 wireless clients are supported.

There are only 4 LAN ports on the Gateway.  How are additional 
computers connected?

You can expand the number of connections available on your LAN by using 
hubs, switches and wireless access points connected to the Gateway. 3Com 
wireless access points and OfficeConnect hubs and switches provide a 
simple, reliable means of expanding your network; contact your supplier for 
more information, or visit 

www.3com.com.

Does the Gateway support virtual private networks (VPNs)?

The Gateway supports VPN passthrough, which allows VPN clients on the 
LAN to communicate with VPN hosts on the Internet. It is also possible to 
set up VPN hosts on your LAN that clients elsewhere on the Internet can 
connect to, but this is not a recommended configuration.

Where can I download software upgrades for the Gateway?

Upgrades to the Gateway software are posted on the 3Com support web 
site, accessible by visiting 

www.3com.com

. Upgrades are also available via 

FTP from 

ftp.3com.com

.

What other online resources are there?

The 3Com Knowledgebase at 

http://knowledgebase.3com.com

 is a 

database of technical information covering all 3Com products. It is updated 
daily with information from 3Com technical support services, and it is 
available 24 hours a day, 7 days a week.

Summary of Contents for 3CRWE51196 - OfficeConnect Wireless Cable/DSL...

Page 1: ...http www 3com com Part No DUA5119 6AAA01 Published April 2002 OfficeConnect Wireless Cable DSL Gateway User Guide 3CRWE51196...

Page 2: ...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 r...

Page 3: ...d Component Requirements 11 Front Panel 11 Rear Panel 13 2 HARDWARE INSTALLATION Introduction 15 Safety Information 15 Positioning the Gateway 15 Using the Rubber Feet 16 Before you Install your Gatew...

Page 4: ...guration 33 DHCP Clients List 34 Wireless Settings 35 Wireless Configuration 35 Channel Selection 35 Service Area Name SSID 35 Encryption 36 Wireless Encryption Type 36 Encryption Keys 36 Connection C...

Page 5: ...guration Screens 55 Connecting to the Internet 56 Forgotten Password 56 Wireless Networking 57 Alert LED 58 Recovering from Corrupted Software 58 Frequently Asked Questions 59 A USING DISCOVERY Runnin...

Page 6: ...ance 68 Wireless Performance 68 Cable Specifications 68 D SAFETY INFORMATION Important Safety Information 69 Wichtige Sicherheitshinweise 69 Consignes importantes de s curit 70 E END USER SOFTWARE LIC...

Page 7: ...eway Category 3 and Category 5 Twisted Pair Cables are referred to as Twisted Pair Cables throughout this guide Conventions Table 1 and Table 2 list conventions that are used throughout this guide Tab...

Page 8: ...refer to the Support and Safety Information sheet Related Documentation In addition to this guide each OfficeConnect Wireless Cable DSL Gateway document set includes one Installation Guide This guide...

Page 9: ...ed power of all of your computers OfficeConnect Wireless Cable DSL Gateway The OfficeConnect Wireless Cable DSL Gateway is designed to provide a cost effective means of sharing a single broadband Inte...

Page 10: ...rovides 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...

Page 11: ...g and connection operations Figure 3 Wireless Cable DSL Gateway Front Panel 1 Alert LED Orange Indicates a number of different conditions as described below Off The Gateway is operating normally Flash...

Page 12: ...port will automatically adjust to the correct speed and duplex 4 Wireless LAN WLAN Status LED Yellow If the LED is on it indicates that wireless networking is enabled If the LED is flashing the link...

Page 13: ...pplied with this Gateway Do not use any other adapter 8 Ethernet Cable DSL port Use the supplied patch cable to connect the Gateway to the Ethernet port on your cable or DSL modem The port will automa...

Page 14: ...14 CHAPTER 1 INTRODUCING THE OFFICECONNECT WIRELESS CABLE DSL GATEWAY...

Page 15: ...n that is centrally located to the wireless computers that will connect to the Gateway A suitable location might be on top of a high shelf or similar furniture to optimise wireless connections to comp...

Page 16: ...ce Name ______________________ You only need a PPPoE Service Name if your ISP requires one Do not enter anything if your ISP does not require a service name If your ISP allocates fixed or static IP in...

Page 17: ...teway using a twisted pair cable Check that the corresponding LAN status LED on the Gateway lights You have now completed the hardware installation of your Gateway Next you need to set up your compute...

Page 18: ...18 CHAPTER 2 HARDWARE INSTALLATION...

Page 19: ...ct and configure your Gateway Refer to Appendix A for information on using the Discovery program Obtaining an IP Address Automatically Windows 2000 If you are using a Windows 2000 based computer use t...

Page 20: ...h selected Click OK 7 Restart your computer Windows 95 98 ME 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 clic...

Page 21: ...ould be displayed 4 Select the Never Dial a Connection option Figure 8 Internet Properties Screen You may wish to remove the PPPoE client software from your computer to free resources as it is not req...

Page 22: ...22 CHAPTER 3 SETTING UP YOUR COMPUTERS...

Page 23: ...Gateway Refer to chapter 2 for details on how to do this 2 Launch your Web browser on the computer Enter the following URL in the location or address field of your browser http 192 168 1 1 Figure 9 F...

Page 24: ...way Welcome screen will appear Figure 11 If your Gateway has not been configured before the Wizard will launch automatically refer to Figure 12 Figure 11 OfficeConnect Wireless Cable DSL Gateway Welco...

Page 25: ...pe the Old Password then a new password in both the New Password and Confirm Password boxes 3Com recommends entering a new password when setting up the Gateway for the first time The Gateway is shippe...

Page 26: ...be updated for daylight savings time automatically WAN Settings Figure 15 Internet Settings Screen This Internet Addressing Mode window allows you to set up the Gateway for the type of Internet connec...

Page 27: ...Do not enter anything in this box if your ISP does not require a service name 6 Check all of your settings and then click Next Dynamic IP Address Mode To setup the Gateway for use with a dynamic IP ad...

Page 28: ...Subnet Mask text box 4 Enter your ISP gateway address in the Internet ISP Gateway Address text box 5 Enter your primary DNS address in the Primary DNS Address text box 6 Enter your secondary DNS addre...

Page 29: ...a maximum of 13 channels the number available to you is dependent on the country you reside in The Service Area Name default for 3Com products is 101 Up to 32 case sensitive characters can be entered...

Page 30: ...Security you will need to set up the Gateway to use the same keys and settings Continue with the wizard to make the initial settings and then see Wireless Settings on page 35 for more details Once you...

Page 31: ...tion setup DHCP server parameters and display the DHCP client list Wireless Settings enables disables access from wireless computers and provides facilities for improving the security of the wireless...

Page 32: ...the Notice board and to change your Password You can also gain access to the Configuration Wizard See Accessing the Wizard on page 23 for details Notice Board Figure 25 Notice Board Screen The Notice...

Page 33: ...field 3 Enter the new password again in the Confirm Password field 4 Click Apply to save the new password The password is case sensitive If you have forgotten your password you can reset the Gateway...

Page 34: ...HCP Clients List provides details on the devices that are connected to the LAN The list is only created when the Gateway is setup as a DHCP server For each device that is connected to the LAN the IP a...

Page 35: ...n t you must configure them to use the same Channel number as the Gateway Service Area Name SSID This allows you to name your Wireless network The field will accept any alphanumeric string and has a m...

Page 36: ...wireless communications between the Gateway and it s wireless clients Enabling WEP has no security effect on data transmitted through wired Ethernet connections or through your connections to the Int...

Page 37: ...ncryption string In 64 bit WEP the Passphrase will generate 4 different keys However in 128 bit WEP this method only generates 1 key which is replicated for all 4 keys The passphrase can be up to 31 c...

Page 38: ...y to configure this feature Connected Client List Figure 34 Connections Control Detail Screen To create a list of Wireless computers that can access the Gateway 1 Press the New button 2 Specify the MA...

Page 39: ...F 3 Press the Add button By pressing the Close button all changes will be discarded Modifying a MAC Address 1 Click on the MAC address to be modified in the table 2 Modify the MAC address The MAC add...

Page 40: ...he MAC address and Connection Speed of that device is displayed As you connect more devices to the Wireless LAN the client list will grow to a maximum of 32 the maximum number of wireless devices that...

Page 41: ...PPP over Ethernet connection use the following procedure 1 Select Enable on the PPP over Ethernet option to display the PPPoE Setup screen Figure 37 2 Enter your PPP over Ethernet user name in the PPP...

Page 42: ...condary DNS addresses Your ISP should provide your primary and optional secondary DNS addresses Enter the addresses in the appropriate text boxes If you are using the DHCP option which automatically a...

Page 43: ...k Apply Advanced Clone MAC Figure 40 Clone MAC Address Screen If your ISP requires an assigned MAC address click Internet Settings Advanced to display the Clone MAC Address screen The New MAC Address...

Page 44: ...lick the SAVE button Virtual Server Activating and configuring a virtual server allows one or more of the computers on your network to function as an Internet service host For example one of your comp...

Page 45: ...l or multiple connections to the Internet and these would normally be blocked by the Firewall For example Internet Telephony or Video conferences require multiple connections So that these special app...

Page 46: ...se ports 2 3 5 6 and 7 to be activated The Gateway will automatically allow FTP and NetMeeting sessions You do not need to configure these as Special Applications Figure 46 Other Applications Setup Sc...

Page 47: ...ctivating Allow will give the particular users access to the service s you indicate in step 5 see below Activating Block denies access to the services chosen in step 5 5 Select the service s to allow...

Page 48: ...illions of computer users throughout the world The vast majority of the computer users on the Internet are friendly and have no intention of breaking into stealing from or damaging your network Howeve...

Page 49: ...any remote host to administer the Gateway type 0 0 0 0 in the Host IP Address box 3 To remotely administer your Gateway enter http xxx xxx xxx xxx 8000 in the location bar of the browser running on t...

Page 50: ...time in the log files If you use Daylight saving tick the Enable Daylight savings box and then click Apply Figure 52 The Gateway reads the correct time from NTP servers on the Internet and sets its sy...

Page 51: ...wnload the software from the 3Com support web site to a folder on your computer Once you have done this use the Browse button to tell your web browser where this file is on your computer and then clic...

Page 52: ...tus and Logs screen display a tabular representation of your network and Internet connection Status Status will display the current unit status including a summary of the configuration Logs Logs will...

Page 53: ...Support Figure 56 Support Screen Selecting Support option on the main menu displays the support links screen which contains a list of Internet links that provide information and support concerning the...

Page 54: ...54 CHAPTER 5 GATEWAY CONFIGURATION...

Page 55: ...0Mbps Some NICs do not have status LEDs in which case a diagnostic program may be available that can give you this information Ensure that you have configured your computer as described in Chapter 3 S...

Page 56: ...en but cannot log on because you do not know or have forgotten the password follow the steps below to reset the Gateway to it s factory default configuration CAUTION All your configuration changes wil...

Page 57: ...onsider moving the wireless computer closer to the Gateway to confirm that the building structure or fittings are not adversely affecting the connectivity If this resolves the problem consider relocat...

Page 58: ...rom the Internet and has prevented it from harming your network You need take no specific action on this unless you decide that these attacks are happening frequently in which case you may wish to dis...

Page 59: ...using hubs switches and wireless access points connected to the Gateway 3Com wireless access points and OfficeConnect hubs and switches provide a simple reliable means of expanding your network conta...

Page 60: ...60 CHAPTER 6 TROUBLESHOOTING...

Page 61: ...8 2000 Me NT 1 Insert the Gateway CD ROM in the CD ROM drive on your computer A menu will appear select Gateway Discovery Note Discovery will find the Gateway even if it is unconfigured or misconfigur...

Page 62: ...59 shows an example Discovered Devices screen Highlight the Wireless Cable DSL Gateway by clicking on it and press Next Figure 59 Discovery Finish Screen 4 Click on Finish to launch a web browser and...

Page 63: ...nd the address of the destination network IP addresses have the format n n n x where n is a decimal number between 0 and 255 and x is a number between 1 and 254 inclusive However an IP Address alone i...

Page 64: ...et mask These are Dynamic Host Configuration Protocol DHCP Addressing Static Addressing Automatic Addressing Auto IP Addressing DHCP Addressing The Wireless Cable DSL Gateway contains a DHCP server wh...

Page 65: ...acquire an address using DHCP but are unable to contact a DHCP server Automatic IP addressing is a scheme where devices allocate themselves an IP address at random from the industry standard subnet o...

Page 66: ...66 APPENDIX B IP ADDRESSING...

Page 67: ...to 5 5 2 or 1Mbps Maximum channels 13 Range up to 304 8m 1000ft Frequency US Canada Europe 2 400 2 4835 GHz Sensitivity 1 2 5 5Mbps 80dBm 11Mbps 76dBm typical Modulation CCK BPSK QPSK Encryption 40 64...

Page 68: ...ort the following Operating Systems Windows 95 98 Windows NT 4 0 Windows ME Windows 2000 Windows XP Mac OS 8 5 or higher Unix Ethernet Performance The Wireless Cable DSL Gateway complies to the IEEE 8...

Page 69: ...nditions are only maintained if the equipment to which it is connected also operates under SELV conditions WARNING There are no user replaceable fuses or user serviceable parts inside the Gateway If y...

Page 70: ...er pour garantir votre s curit personnelle Vous devez respecter attentivement toutes les consignes Nous vous demandons de lire attentivement les consignes suivantes de s curit avant d installer ou de...

Page 71: ...daptateur lectrique avant de retirer cet appareil AVERTISSEMENT Ports RJ 45 Il s agit de prises femelles blind es de donn es RJ 45 Vous ne pouvez pas les utiliser comme prise de t l phone Branchez uni...

Page 72: ...72 APPENDIX D SAFETY INFORMATION...

Page 73: ...covered by this Agreement may contain data encryption code which is unlawful to export or transfer from the United States or country where you legally obtained it without an approved U S Department of...

Page 74: ...74 APPENDIX E END USER SOFTWARE LICENCE AGREEMENT...

Page 75: ...uilt in and you can remove it from your PC You will need to enter the user name and password that your ISP provided to you in the PPPoE page of the Gateway Leave the service name blank unless your ISP...

Page 76: ...76 APPENDIX F ISP INFORMATION...

Page 77: ...ients It is used to connect a peer to peer network together without the use of an access point It offers lower performance than infrastructure mode which is the mode the gateway uses see also Infra st...

Page 78: ...re IP addresses such as 192 34 45 8 A DNS server keeps a database of host computers and their respective domain names and IP addresses so that when a domain name is requested as in typing 3com com int...

Page 79: ...will need to ensure all of your clients are set up to use infra structure mode in order for them to communicate with the Access Point built into your Gateway see also Ad Hoc mode IP Internet Protocol...

Page 80: ...rules dictate format timing sequencing and error control PPPoE Point to Point Protocol over Ethernet Point to Point Protocol is a method of secure data transmission originally created for dial up con...

Page 81: ...ountries The Internet is an example of a wide area network WECA Wireless Ethernet Compatibility Alliance An industry group formed to certify cross vendor interoperability and compatibility of 802 11b...

Page 82: ...82 GLOSSARY...

Page 83: ...s 63 Internet Addressing Mode 26 IP Address 28 IP address 28 34 63 IP Allocation 40 ISP gateway address 28 L LAN 28 33 LED 11 login 62 M MAC address 27 34 N network addresses 63 P Password 32 password...

Page 84: ...84 INDEX...

Page 85: ...g measures Reorient the receiving antenna Relocate the equipment with respect to the receiver Move the equipment away from the receiver Plug the equipment into a different outlet so that equipment and...

Page 86: ...t This Class B digital apparatus meets all requirements of the Canadian Interference Causing Equipment Regulations Cet appareil num rique de la classe B respecte toutes les exigences du R glement sur...

Page 87: ......

Page 88: ...products and services visit our World Wide Web site at www 3com com All specifications are subject to change without notice Copyright 2002 3Com Corporation All rights reserved 3Com and OfficeConnect...

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