Synchronizing the LAN Modem Clock | 3Com Dual 56K manual

Synchronizing the LAN Modem Clock 135

the LAN Modem. You can manually synchronize this internal clock to match the date and time of another attached workstation.

To update the LAN Modem’s Real Time clock:

1From the LAN Modem Main Conﬁguration Page, click the Advanced button.

2Click the Maintenance button.

3Click the Update LAN Modem’s clock button (you may have to scroll down to see it).

The LAN Modem synchronizes its clock to match the date and time on your workstation.

The Set Password page opens.

4Enter your password and click Submit.

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3Com Dual 56K manual Synchronizing the LAN Modem Clock

Contents

Dual 56K LAN Modem 95052-8145 3Com CorporationBayfront Plaza Santa Clara, California Important Safety Information Important Safety InformationWichtige Sicherheits-Informatio nen Medidas de Seguridad Importantes Important Notice de Securite Informazioni Importanti per la Sicurezza Additional Safety Information If the unit shows signs of a distinct change in performance Table of Contents Installing the Dual 56K LAN Modem Networking Primer Page About this Guide Shows you where to ﬁnd speciﬁc information in this guide Convention Description ConventionsList conventions that are used throughout this guide Icon Alerts you to Introduction Introduction Local Networking with Applications Internet and a Private Network Local Networking and Dial-out Access with Dial-in Support Color Description Description Front Panel LED Indicator Deﬁnitions Features Protocols Error Control and Data CompressionBandwidth Management Remote Management Modulation Schemes UpgradeabilityDiagnostics Warranty UAL 56K LAN M Odem Channels Using the ModemWan Side The Two 56K Modems Using the Modem Channels 192 Simultaneous Dial-in and Dial-out Connections Possible, as shown in Figure Locations two different locations, as shown in Figure Options UnderstandingMultilink PPP Other Line Usage 56K LAN Modem’s Manual Call Control Through an RS-232 serial COM port Support 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 Select Protocol and then click Add Click Add Select Network Component Type dialog box appears Select Network Protocol dialog box appears You may need your Windows NT 4.0 installation CD-ROM Select TCP/IP Protocol, and then click OK Select the Protocols tab, as shown in Figure Dhcp Message Box Following message appears Select Internet Protocol TCP/IP and then click Add Click InstallDouble click Local Area Connection Click Properties Setting Up Your Computer If You HaveStatic IP Address For Windows 95 and 98 Users Set Up Steps for Statically Conﬁgured Workstation From 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 Installation Installing the Dual 56K LAN Modem Pass-through Phone ports You may need to use a country-speciﬁc phone adapter optional Power Cable Connection Installing the Dual 56K LAN Modem Main Steps for Typical Conﬁguration Configuring the Dual 56K LAN Modem for Internet Access Initial Conﬁguration Welcome Window Welcome message appears, as shown in Figure Set Password Window ISP Wizard appears Click Continue Click Continue LAN Modem Support Web Site Changing the LAN Modem IP Address for Static IP Users LAN Modem Main Configuration Links From the Illustration Providers You may wish to bookmark this page for easy future access 10-User Shared WAN Connection Using an 8-Port Ethernet Hub Connecting an External Hub to the Dual 56K LAN Modem 10BASE-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 Under Miscellaneous, make the following selections IP Address and Subnet mask ﬁelds are mandatoryPage Setting Up Additional Service Provider Proﬁles Dual 56K LAN Modem Main Conﬁguration Providers Modem as they become available Connecting an External Hub to the Dual 56K LAN ModemLAN Modem Support Web Site Conﬁguring Advanced ConfigurationAdditional Service Advanced Conﬁguration Advanced Configuration Internet Service Provider Parameters window appears Advanced Configuration Click Submit Providers with Editing ServiceAssociating Service Provider Proﬁles Using a Connection Script Connection Script Command Syntax Buttons Click Set PortClick Transmit Connection Script Example Additional Conﬁguration Buttons Parameters Name Conﬁguring LANParameters Ethernet Parameters window is shown in Figure Parameters Enable Dhcp ServerNetBIOS Filtering Local Domain Name Modem Control Parameter Description Modem Control Controls Data Call Parameters Window Bandwidth on Demand Parameters Timeout Values Call Parameters Outgoing Call Control Advanced Configuration Changing Your PasswordReserving Dhcp Addresses Advanced Configuration Using Selective Password ProtectionConﬁguring the LAN Modem from a Remote Location Conﬁguring the LAN Modem Remotely via Another LAN Modem Administration Password Click TCP/IP Settings Analog ModemDouble-clickMake New Connection Click Check for Upgrades Adapter or an Isdn LAN Modem Configuring the Dual 56K LAN Modem for DIAL-IN SupportBasics Server-side LAN Modem and a client-side device Configuring 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 Before You Start the Conﬁguration Click Dial-in User Dial-In Global Parameters window opens, as shown in Figure Click Dial-in GlobalPage Dial-in Wizard for Single User Dial-in Dial-In Wizard Proﬁle Type Selection Window Dial-In Wizard Password Window Dial-In Wizard Password window appears, as shown in Figure Modem Site-to-Site Dial-in Dial-In Wizard Internet Service Provider Window Dial-In Wizard Password Window Dial-In Wizard Site Assignment Window Dial-in Conﬁguring an Analog Modem for Dial-out Calling Part II. Conﬁguring a Client Device for Dial-out Access Modem 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 WAN Parameters Callback Parameters Placing a Call from a Client-side LAN Modem Windows only Disconnecting CallsUsing the LAN Modem Desktop Manager Call Routing Among Service Providers Click Submit to save your changesClick Place Call Click Make Call Receiving Calls Click Hangup Call Manually Idle Timeout Timers Minimum Call Duration PLACING, Receiving and Disconnecting Calls Monitoring LEDs Troubleshooting MaintenanceUnauthorized opening of the unit will void the warranty LAN Status LEDs to isolate problems Symptom Possible Cause Solution Evaluating SymptomsSolutions Solutions Internet Explorer Windows 95Windows 2000 and NT Macintosh Click Workstations Click the Workstation Configuration tab Documentation/interop.html Web browser may be caching older pages Contacting Technical Resetting the Dual 56K LAN ModemFinding More Information System Statistics Description of System Statistics Call Information Current Call Information DescriptionLast Call Information Synchronizing LAN Modem ClockCycled Synchronizing the LAN Modem Clock Troubleshooting and Maintenance Networking Primer What is a LAN Modem? What is a WAN? What is a network? Is written as Becomes Subnet 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 Virtual Fax Modem Parameters page opens, as shown in Figure Click the Virtual Fax Modem button Usage Tunnel Creating a Virtual Private Network VPN TunnelCreating a Virtual Private Network VPN Run Dial-Up Networking Click the Make a New Connection icon Factory Defaults Factory Defaults Appendix D Factory Defaults Refer to for the Dual 56K LAN Modem speciﬁcations SpecificationsSpeciﬁcations Year 2000 Compliance Appendix E Specifications Glossary LZS Glossary Glossary OfﬁceConnect Dual 56K LAN Modem 3Com Corporation Limited Lifetime Warranty Warranties Exclusive Regulatory and Aproval Information FCC Declaration FCC Part 68 Compliance Page TCP/IP 167 168