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3Com manual Dual 56K LAN Modem Functionality Description

Models: Dual 56K

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30CHAPTER 2: DUAL 56K LAN MODEM FUNCTIONALITY DESCRIPTION

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3Com manual Dual 56K LAN Modem Functionality Description

Contents

Dual 56K LAN Modem Santa Clara, California 3Com CorporationBayfront Plaza 95052-8145Important Safety Information Important Safety InformationWichtige Sicherheits-Informatio nen Important Notice de Securite Medidas de Seguridad ImportantesAdditional Safety Information Informazioni Importanti per la SicurezzaIf the unit shows signs of a distinct change in performance Table of Contents Installing the Dual 56K LAN Modem Networking Primer Page Shows you where to ﬁnd speciﬁc information in this guide About this GuideIcon Alerts you to ConventionsList conventions that are used throughout this guide Convention DescriptionIntroduction IntroductionApplications Local Networking withLocal Networking and Dial-out Access with Dial-in Support Internet and a Private NetworkDescription Color DescriptionFront Panel LED Indicator Deﬁnitions Features Remote Management Error Control and Data CompressionBandwidth Management ProtocolsWarranty UpgradeabilityDiagnostics Modulation SchemesUAL 56K LAN M Odem 56K Modems Using the ModemWan Side The Two ChannelsUsing the Modem Channels 192 Simultaneous Dial-in and Dial-out Connections Locations two different locations, as shown in Figure Possible, as shown in FigureOther Line Usage UnderstandingMultilink PPP OptionsThrough an RS-232 serial COM port 56K LAN Modem’s Manual Call ControlSupport for Virtual Private NetworksVPNs Dual 56K LAN Modem Functionality Description Package Contents Before YOU BeginBefore You Begin Before YOU Begin TCP/IP Dialog Box for Macintosh Computers Click Add Select Network Component Type dialog box appears Select Protocol and then click AddYou may need your Windows NT 4.0 installation CD-ROM Select Network Protocol dialog box appearsSelect the Protocols tab, as shown in Figure Select TCP/IP Protocol, and then click OKFollowing message appears Dhcp Message BoxClick Properties Click InstallDouble click Local Area Connection Select Internet Protocol TCP/IP and then click AddSetting Up Your Computer If You HaveStatic IP Address Set Up Steps for Statically Conﬁgured Workstation For Windows 95 and 98 UsersFrom the Start menu, select Settings and then Control Panel Click OKFor Windows 2000 Users For Windows NT 4.0 Users For Macintosh UsersFrom the Apple menu, select Control Panels, and then TCP/IP Installing the Dual 56K LAN Modem InstallationYou may need to use a country-speciﬁc phone adapter optional Pass-through Phone portsPower Cable Connection Installing the Dual 56K LAN Modem Configuring the Dual 56K LAN Modem for Internet Access Main Steps for Typical ConﬁgurationWelcome message appears, as shown in Figure Initial Conﬁguration Welcome WindowSet Password Window Click Continue ISP Wizard appearsClick Continue Changing the LAN Modem IP Address for Static IP Users LAN Modem Support Web SiteLAN Modem Main Configuration Links From the Illustration You may wish to bookmark this page for easy future access ProvidersConnecting an External Hub to the Dual 56K LAN Modem 10-User Shared WAN Connection Using an 8-Port Ethernet Hub10BASE-T Hub-to-LAN Modem Connection Configuring the Dual 56K LAN Modem for Internet Access Before You Start ConﬁgurationDisplayed on your computer Click Continue If do not wish to enter a Password, leave the ﬁelds empty Page Service Provider Selection Window Private Network Parameters Window IP Address and Subnet mask ﬁelds are mandatory Under Miscellaneous, make the following selectionsPage Setting Up Additional Service Provider Proﬁles Dual 56K LAN Modem Main Conﬁguration Providers Support Web Site Connecting an External Hub to the Dual 56K LAN ModemLAN Modem Modem as they become availableAdvanced Conﬁguration Advanced ConfigurationAdditional Service ConﬁguringAdvanced Configuration Internet Service Provider Parameters window appears Advanced Configuration Click Submit Provider Proﬁles Editing ServiceAssociating Service Providers withUsing a Connection Script Connection Script Command Syntax Buttons Click Set PortClick Transmit Additional Conﬁguration Buttons Connection Script ExampleEthernet Parameters window is shown in Figure Conﬁguring LANParameters Parameters NameLocal Domain Name Enable Dhcp ServerNetBIOS Filtering ParametersModem Control Modem Control Parameter DescriptionControls Data Call Parameters Window Timeout Values Bandwidth on Demand ParametersOutgoing Call Control Call ParametersAdvanced Configuration Addresses PasswordReserving Dhcp Changing YourAdvanced Configuration Using Selective Password ProtectionConﬁguring the LAN Modem from a Remote Location Administration Password Conﬁguring the LAN Modem Remotely via Another LAN ModemClick TCP/IP Settings Analog ModemDouble-clickMake New Connection Click Check for Upgrades Server-side LAN Modem and a client-side device Configuring the Dual 56K LAN Modem for DIAL-IN SupportBasics Adapter or an Isdn LAN ModemConfiguring the Dual 56K LAN Modem for DIAL-IN Support Single User Dial-in from an Analog Modem LAN Modem Site-to-Site Dial-in Proﬁle Type Click Dial-in User Before You Start the ConﬁgurationClick Dial-in Global Dial-In Global Parameters window opens, as shown in FigurePage Dial-in Wizard for Single User Dial-in Dial-In Wizard Proﬁle Type Selection Window Dial-In Wizard Password window appears, as shown in Figure Dial-In Wizard Password WindowDial-In Wizard Internet Service Provider Window Modem Site-to-Site Dial-inDial-In Wizard Password Window Dial-In Wizard Site Assignment Window Dial-in Part II. Conﬁguring a Client Device for Dial-out Access Conﬁguring an Analog Modem for Dial-out CallingModem Using Conﬁguring a LANModem LAN Creating a Private Network Service Provider Proﬁle Private Network Parameters Window Under DNS Addresses, leave these values blank Configuring the Dual 56K LAN Modem for DIAL-IN Support Dial-in User Selection Screen Dial-in Users Parameters Screen Callback Parameters WAN ParametersPlacing a Call from a Client-side LAN Modem Desktop Manager Disconnecting CallsUsing the LAN Modem Windows onlyCall Routing Among Service Providers Click Submit to save your changesClick Place Call Receiving Calls Click Make CallManually Click Hangup CallTimers Minimum Call Duration Idle TimeoutPLACING, Receiving and Disconnecting Calls LAN Status LEDs to isolate problems Troubleshooting MaintenanceUnauthorized opening of the unit will void the warranty Monitoring LEDsSolutions Evaluating SymptomsSolutions Symptom Possible Cause SolutionMacintosh Windows 95Windows 2000 and NT Internet ExplorerClick Workstations Click the Workstation Configuration tab Documentation/interop.html Web browser may be caching older pages Information Resetting the Dual 56K LAN ModemFinding More Contacting TechnicalDescription of System Statistics System StatisticsCall Information Current Call Information DescriptionLast Call Information Synchronizing LAN Modem ClockCycled Synchronizing the LAN Modem Clock Troubleshooting and Maintenance Networking Primer What is a WAN? What is a LAN Modem?What is a network? Becomes Is written asSubnet Masking Appendix a Networking Primer What is a network? Appendix a Networking Primer Possible Limitations Appendix a Networking Primer Installing and Using the Virtual FAX ModemModem Application Click Install Modems Modem Properties window opensClick Add to add the new modem Click the Virtual Fax Modem button Virtual Fax Modem Parameters page opens, as shown in FigureUsage Private Network VPN Creating a Virtual Private Network VPN TunnelCreating a Virtual TunnelRun Dial-Up Networking Click the Make a New Connection icon Factory Defaults Factory DefaultsAppendix D Factory Defaults Year 2000 Compliance SpecificationsSpeciﬁcations Refer to for the Dual 56K LAN Modem speciﬁcationsAppendix E Specifications Glossary LZS Glossary Glossary 3Com Corporation Limited Lifetime Warranty OfﬁceConnect Dual 56K LAN ModemWarranties Exclusive Regulatory and Aproval Information FCC Declaration FCC Part 68 Compliance Page 167 TCP/IP168