3com OFFICECONNECT 3C886 Manuel du propriétaire

http://www.3com.com/ ® OfficeConnect ® 56K LAN Modem 3C886 User Guide Part No. 984/000027-2Published March 1999

100 APPENDIX A: NETWORKING PRIMER

BUSING THE CUSTOM WEB BROWSERAn Internet Explorer Web browser tailored for use with your 56K LAN Modem is provided on the 3Com Companion Programs CD-R

102 APPENDIX B: USING THE CUSTOM WEB BROWSER User GuideClick here to jump to the Internet location of the OfficeConnect 56K LAN Modem User Guide.Using

CFACTORY DEFAULTSThis appendix lists the factory default settings of the 56K LAN Modem.56K LAN Modem Factory DefaultsRefer to Table 13 for the 56K LAN

104 APPENDIX C: FACTORY DEFAULTS

DSPECIFICATIONSThis appendix describes the following specifications of the 56K LAN Modem. General Year 2000 ComplianceGeneral Specifications Refer to

106 APPENDIX D: SPECIFICATIONS

GLOSSARYanalog signals A variety of signals and wavelengths that can be transmitted over communications lines. An example is a voice call over the pho

108 GLOSSARYITU International Telecommunications Union. Headquartered in Geneva, Switzerland the ITU is an international organization within which gov

GLOSSARY 109V.34+ An enhancement to V.34 that enables transfer rates as high as 33, 600 bps.V.90 V.90 is the ITU standard which allows modems to recei

ABOUT THIS GUIDEAbout This Guide provides an overview of this guide, describes guide conventions, and tells you where to look for specific information.

110 GLOSSARY

111AAlert LED 85, 88analog cable installation 30analog equipment installation 32Auto Answer 79Bback paneldescription 29CCD LED 88Challeng

112

3Com Corporation LIMITED WARRANTYOfficeConnect 56K LAN ModemHARDWARE 3Com warrants this hardware product to be free from defects in workmanship and mat

WARRANTIES EXCLUSIVE IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER'S SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR, R

Consult the dealer or an experienced radio/TV technician for help.The user may find the following booklet prepared by the Federal Communications Com

12 ABOUT THIS GUIDEYear 2000 Compliance The OfficeConnect LAN Modem is Year 2000 compliant. Specifically, its system clock is capable of accepting and s

1INTRODUCTIONThis chapter provides an overview of the OfficeConnect® 56K LAN Modem, referred to throughout this document as the 56K LAN Modem or simply

14 CHAPTER 1: INTRODUCTIONLocal Networking withAccess to the InternetUsers can share access to the Internet while continuing to network locally, as sh

Features 15Features Ease of Installation and Use Web-based, point-and-click user interface for easy configuration Automatic Internet configuration ver

16 CHAPTER 1: INTRODUCTIONProtocols IETF PPP (RFC 1661, 1662, 1663) IETF Password Authentication Protocol (PAP) and Challenge Handshake Authenticati

Features 17Warranty 3Com Corporation Limited Warranty (refer to the end of this User Guide for details)Support for Internet ApplicationsYour 56K LAN

18 CHAPTER 1: INTRODUCTION

256K LAN MODEM FUNCTIONALITY DESCRIPTIONThis chapter provides a description of the 56K LAN Modem’s key functionality, covering the following topics.

3Com Corporation5400 Bayfront Plaza Santa Clara, California 95052-8145 Copyright © 3Com Corporation, 1999. All rights reserved. No part of this doc

20 CHAPTER 2: 56K LAN MODEM FUNCTIONALITY DESCRIPTIONFigure 3 56K LAN Modem Ten Workstation Connection ExampleAn example of the minimum number of co

Connection Types 21WAN Connection The 56K LAN Modem allows up to 25 users to connect to a WAN using one analog connection to a single location.One Hig

22 CHAPTER 2: 56K LAN MODEM FUNCTIONALITY DESCRIPTIONCall Routing Protocol and IP Address TranslationThis section describes the call routing protocol

Understanding VPNs and PPTP 23Figure 7 IP Address TranslationUnderstanding VPNs and PPTPVirtual private networks (VPN) are private, secure networks

24 CHAPTER 2: 56K LAN MODEM FUNCTIONALITY DESCRIPTIONThe main steps for creating a VPN are as follows. Each step is explained in detail in subsequent

Understanding VPNs and PPTP 25You are ready to access a remote private network LAN as if you were connected locally. Each workstation that wishes to h

26 CHAPTER 2: 56K LAN MODEM FUNCTIONALITY DESCRIPTION

3HARDWARE DESCRIPTION AND INSTALLATIONThis chapter provides an overview of the hardware description and installation of the 56K LAN Modem.Package Cont

28 CHAPTER 3: HARDWARE DESCRIPTION AND INSTALLATION TCP/IP software. TCP/IP is provided as part of the Windows 98, 95, NT and Macintosh System 7.6 an

Installing the 56K LAN Modem 29Back Panel ConnectorDescriptionThe back panel provides the following components.Figure 10 56K LAN Modem Back PanelFro

I MPORTANT S AFETY I NFORMATION WARNING: Warnings contain directions that you must follow for your personal safety. Follow all instructions caref

30 CHAPTER 3: HARDWARE DESCRIPTION AND INSTALLATION 10BASE-T Ethernet cable (8-pin to 8-pin connectors) labeled Ethernet which was provided in the pa

Installing the 56K LAN Modem 31Connecting to AnotherEthernet HubYou can connect to another Ethernet hub to allow up to 25 users to access the WAN. Ins

32 CHAPTER 3: HARDWARE DESCRIPTION AND INSTALLATIONInstalling AnalogEquipmentYou can connect an analog touch-tone telephone, answering machine, fax ma

Installing the Power Cable 332 Plug the other end of the power module into a surge-protected standard 110 VAC wall outlet.The PWR and AA indicator LED

34 CHAPTER 3: HARDWARE DESCRIPTION AND INSTALLATION

4SETTING UP TCP/IP FOR WINDOWS AND MACINTOSH This chapter describes how to set up the Windows and Macintosh operating system (OS) TCP/IP stack. Your c

36 CHAPTER 4: SETTING UP TCP/IP FOR WINDOWS AND MACINTOSHFigure 17 Select Network Component Type Dialog Box3 Select Protocol and then click Add.The

TCP/IP Setup Using Windows 95 and 98 37Figure 19 Network Dialog Box7 Select IP Address.The IP Address dialog box appears.Figure 20 IP Address Dial

38 CHAPTER 4: SETTING UP TCP/IP FOR WINDOWS AND MACINTOSHFigure 21 TCP/IP Properties Advanced Screen10 Check the box to set TCP/IP as the default pr

TCP/IP Setup Using Windows NT 4.0 39Figure 22 Windows NT Protocols Configuration Window3 Click Add.The Select Network Protocol window appears as show

Be sure nothing rests on the unit’s system cables and that the cables are not located where they can be stepped on and cause damage to the unit.

40 CHAPTER 4: SETTING UP TCP/IP FOR WINDOWS AND MACINTOSHIf you are using dynamic IP addressing on your LAN and would like your LAN Modem to act as yo

TCP/IP Setup Using Mac OS 7.6 or later 41Figure 26 Microsoft TCP/IP Properties Window9 From the Adapter drop down list box, select the Ethernet card

42 CHAPTER 4: SETTING UP TCP/IP FOR WINDOWS AND MACINTOSHFigure 27 TCP/IP Dialog Box for Macintosh Computers2 Select Ethernet from the Connect via d

TCP/IP Setup Using Windows 3.11 43Figure 29 Network Group Box4 From the Network Setup dialog box, click the Drivers button.Figure 30 Network Setup

44 CHAPTER 4: SETTING UP TCP/IP FOR WINDOWS AND MACINTOSH

5CONFIGURING THE 56K LAN MODEMThis chapter describes the typical configuration procedure for your 56K LAN Modem. These steps include setting up your 56

46 CHAPTER 5: CONFIGURING THE 56K LAN MODEMYou Should Have ThisInformationIf you want to set up a connection to an ISP, you will need: Your ISP’s tel

Typical Configuration 47Setting Up YourComputer If You Have aStatic IP AddressIf your computer has a static IP address, you must verify and possibly c

48 CHAPTER 5: CONFIGURING THE 56K LAN MODEM8 In the TCP/IP DNS Server box, enter the Gateway IP address you wrote down as part of the previous step an

Typical Configuration 49Configuring the 56K LANModem for the TypicalConfigurationThe following steps allow you to configure the 56K LAN Modem for the typ

T ABLE OF C ONTENTS I MPORTANT S AFETY I NFORMATION Additional Safety Information 3 A BOUT T HIS G UIDE Introduction 11How to Use This

50 CHAPTER 5: CONFIGURING THE 56K LAN MODEMFigure 33 Set Password Window3 Enter a password in the Password field and then enter the same password in

Typical Configuration 51Figure 34 ISP Wizard Window5 In the ISP Name field, enter a name that you wish to associate with your ISP.6 In the Dial Out P

52 CHAPTER 5: CONFIGURING THE 56K LAN MODEMIf you cannot access a Web site and your computer has a static IP address, refer to “Configuring a Static IP

Typical Configuration 536 Enter your password and then click Submit.The 56K LAN Modem’s main configuration page appears.7 Click the ISP Wizard button.Y

54 CHAPTER 5: CONFIGURING THE 56K LAN MODEM56K LAN Modem Main PageThe 56K LAN Modem main page is shown in Figure 35. From here you can access configura

56K LAN Modem Main Page 55 Current Call Status: Jumps to the call statistics page where the latest call information is displayed.Links from the Butto

56 CHAPTER 5: CONFIGURING THE 56K LAN MODEM

6ADVANCED CONFIGURATIONThis chapter describes the advanced configuration steps required for connecting to private networks such as a remote office LAN,

58 CHAPTER 6: ADVANCED CONFIGURATIONyour LAN; in other words, all (up to 25) computers on the LAN have access to and may connect to that ISP and there

Setting Up Additional Service Providers 59Setting Up a Connection to the InternetTo set up a connection to an ISP, do the following.1 From the 56K LAN

WAN Connection 21One High Speed Connection 21Sharing the Connection 21Call Routing Protocol and IP Address Translation 22Placing a Ca

60 CHAPTER 6: ADVANCED CONFIGURATIONFigure 37 ISP Parameters Window3 In the Name field, enter a name for this remote destination, such as the name of

Setting Up Additional Service Providers 619 For DNS IP Address(es), enter the primary DNS address of your ISP in the Primary field, if required (that i

62 CHAPTER 6: ADVANCED CONFIGURATIONSetting Up a Connectionto a Private NetworkThis section describes your 56K LAN Modem setup procedures for accessin

Setting Up Additional Service Providers 63Figure 39 Private Network Parameters Window3 In the Name field, enter a name for this remote destination, s

64 CHAPTER 6: ADVANCED CONFIGURATION6 In the Telephone Number 1 field, enter the telephone number you must dial in order to reach your ISP.7 In the Tel

Associating Service Providers with Computers on the LAN 6518 Advanced users can review or make changes to the modem settings associated with this serv

66 CHAPTER 6: ADVANCED CONFIGURATIONTo change the associations of this particular workstation, do the following.1 Check or clear the boxes of the serv

Configuring LAN Parameters 67Configuring LAN ParametersThis section describes how to configure the parameters of your LAN. (LAN refers to that section

68 CHAPTER 6: ADVANCED CONFIGURATIONWARNING: If you change the IP address and/or the subnet mask, the 56K LAN Modem will re-initialize itself to work

Configuring Modem Control Parameters 69If you wish to password protect the configuration profile of the 56K LAN Modem, refer to “Locking and Unlocking t

56K LAN Modem Main Page 54Links From the Illustration 54Links from the Buttons 55 6 A DVANCED C ONFIGURATION Advanced Configuration 5

70 CHAPTER 6: ADVANCED CONFIGURATIONChanging ModemControlsTo access and make changes to the Modem Control parameters, do the following.1 Click the Ser

Changing Data Call Parameters 71Changing Data Call ParametersThis section describes changing the data call parameter default settings. The data call p

72 CHAPTER 6: ADVANCED CONFIGURATIONsimultaneously with the minimum call duration. For example, if the minimum call duration is set to two minutes, an

Changing Your Password 73To set up selective password protection, do the following.1 From the LAN Modem main page, click the Password button.2 Check t

74 CHAPTER 6: ADVANCED CONFIGURATIONConfiguring the LAN Modem from a Remote LocationThis section provides instructions for accessing and making configu

Configuring the LAN Modem from a Remote Location 75For Windows 95 users: PPP, Windows 95, Windows NT 3.5, Internet should be chosen in the Type of Dia

76 CHAPTER 6: ADVANCED CONFIGURATION

7PLACING, RECEIVING AND DISCONNECTING CALLSThis chapter covers the following main topics: Placing calls Receiving calls Disconnecting calls Using

78 CHAPTER 7: PLACING, RECEIVING AND DISCONNECTING CALLSPlacing a Call Manually You can also choose to manually place a call to either an existing ser

Receiving Calls 79Receiving Calls The 56K LAN Modem can receive both voice and data calls, as follows.Receiving Voice Calls Voice calls received by th

Configuring the LAN Modem Remotely via an Analog Modem 74 7 P LACING , R ECEIVING AND D ISCONNECTING C ALLS Placing Calls 77Placing a Call

80 CHAPTER 7: PLACING, RECEIVING AND DISCONNECTING CALLSDisconnecting Calls You can disconnect calls manually or utilize timers to disconnect calls au

Using a Connection Script 81Accessing the ScriptConfiguration PageYou can associate a unique connection script for each of your four service provider p

82 CHAPTER 7: PLACING, RECEIVING AND DISCONNECTING CALLSCreating a ConnectionScriptYou can choose to manually create a script from within a text edito

Using a Connection Script 836 Enter the Parity setting required by your service provider. Enter e if the remote server requires Even parity, o if the

84 CHAPTER 7: PLACING, RECEIVING AND DISCONNECTING CALLSOnce completed, your script will be automatically invoked each time you launch a call to your

8TROUBLESHOOTING AND MAINTENANCEThis chapter explains how to isolate and solve problems encountered with the 56K LAN Modem. Problems may stem from inc

86 CHAPTER 8: TROUBLESHOOTING AND MAINTENANCE A fast flash of the ALERT LED indicates that the DHCP server has issued all of the available IP addresse

Evaluating Symptoms and Solutions 87Your Web browser may be configured to use a proxy server.Set your browser to use the LAN Modem. For internet Explo

88 CHAPTER 8: TROUBLESHOOTING AND MAINTENANCESending SMTP mail is slow. Only one workstation to one server is supported at one time for SMTP mail.If m

Evaluating Symptoms and Solutions 89Calls continue to reconnect or calls do not timeout and disconnect.An application or LAN device is sending IP pack

A N ETWORKING P RIMER B U SING THE C USTOM W EB B ROWSER C F ACTORY D EFAULTS D S PECIFICATIONS General Specifications 105Year 2000 Complia

90 CHAPTER 8: TROUBLESHOOTING AND MAINTENANCEFinding More InformationFor more information about the 56K LAN Modem, such as frequently asked questions

Reviewing Statistics 91Reviewing Statistics Various statistics about LAN and WAN parameters are stored and available for review. To view statistics, d

92 CHAPTER 8: TROUBLESHOOTING AND MAINTENANCEUnderstanding Last CallInformationThe last call information is described in Table 11.Secondary DNS addres

Reviewing Statistics 93Understanding ServiceProvider InformationThe Service Provider information described in Table 12 is provided after a call has en

94 CHAPTER 8: TROUBLESHOOTING AND MAINTENANCE

ANETWORKING PRIMERThis chapter provides a description of basic networking concepts and modem terminology to help you better understand the key functio

96 APPENDIX A: NETWORKING PRIMERHow does a LAN connectto a WAN?You can connect a LAN to a WAN via a number of devices such as a router or a bridge tha

What is a network? 97as Class C. The next 21 bits identify the network and the last 8 represent the local or host address, limiting the number of devi

98 APPENDIX A: NETWORKING PRIMERWhat is NAT? Network Address Translation, also known as IP address sharing, allows multiple users to share a single co

What is a network? 99Note that employing data compression upon pre-compressed files, such as a ZIP archive, may actually increase the time required for