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1. M Multilink PPP 30 placing calls 95 N NAT configuration for a private network 75 for an ISP 71 NetBIOS filtering 78 network interface 118 119 121 O online help 106 D D channel LED 101 data call parameters changing 79 understanding 79 date and time setting 59 83 disconnecting calls automatically using timers 97 manually 96 distinctive ringing 96 Dynamic Bandwidth Allocation 31 dynamic IP address determining if your computer has a dynamic IP address 56 F factory defaults 119 P password changing 84 Password Authentication Protocol PAP 22 PC requirements 36 Phone port 41 placing calls automatically 93 manually 93 Multilink PPP 95 power cable connection 42 power requirements 121 PPTP 31 private network setting up a connection to 72 R receiving calls data 95 S service providers associating with computers on the LAN 75 editing profiles 76 setting Up a connection to a private network 72 setting up a connection to an ISP 69 setting up additional 68 setting date and time ISDN LAN Modem 59 83 specifications 121 static IP address configuring on the ISDN LAN modem 63 determining if your computer has a static IP address 56 supplementary voice services 89 to T TCP IP setup using Mac OS 7 6 51 setup using Windows 3 11 52 setup using Windows 95 45 setup using Windows NT 4 0 48 TEI configuration 85 Test LED 100 101 troubleshooting checking the basics 99 evaluating symp
2. Remote office OfficeConnect LAN 3 ISDN LAN Modem a 64 Kbps B1 BE E 84 Kbps B2 Combining both B channels with Multilink provides a single 128 Kbps connection 07 128 Kbps B1 amp B2 Public telephone network Without compression Figure 7 One High Speed Connection to a Single Location Up to 25 users can share a connection to the same location over the single connection created by Multilink PPP Figure 8 shows three users on the LAN accessing the Internet through the same Internet provider and over the single high speed connection 28 CHAPTER 2 ISDN LAN MODEM FUNCTIONALITY DESCRIPTION LAN Side Connection Internet Intranet or online service A A M rfay 21 Public telephone A network ISDN BRI line Figure 8 Shared Connection to the Same Location Application Sharing over the LAN Most operating systems such as Windows 98 and 95 and Macintosh provide the capability for users on the LAN to share applications files and printers among computers For example if only one computer has a Web browser the other users on the LAN can use that Web browser to access the Internet Note that speed will likely be reduced when applications are shared Refer to your operating system documentation for instructions on setting up sharing between users on a LAN Call Routing Protocol and IP Address Translation 29 Call
3. Routed to Phone Port 1 only Routed to Phone Port 2 only Allowed over all three ISDN telephone numbers Not restricted allows your telephone number to be displayed on caller ID units No Yes 60 10 seconds 20 seconds Enabled on both ports Disabled 2 minutes 30 seconds 15 minutes Automatic The ISDN LAN Modem attempts to use this default IP address to communicate with the computer during initial configuration If communication cannot be established initially the ISDN LAN Modem will change its default IP address If this occurs the IP address will be different from the default shown here 120 APPENDIX C ISDN LAN MODEM FACTORY DEFAULTS ISDN LAN MODEM SPECIFICATIONS o Refer to Table 17 for the ISDN LAN Modem specifications Table 17 ISDN LAN Modem Specifications ISDN Basic rate telephone service provided by the Network Interface telephone company ISDN Interface Type S T if 3C891 U if 3C892 LAN Interface Ethernet IEEE 802 3 10BASE T standard Physical Dimensions Length 22 0 cm 8 66 in Width 13 8 cm 5 44 in Height 4 0 cm 1 56 in Environmental Operating Range Operating temperature 10 to 50 C 0 to 122 F Relative humidity Up to 90 noncondensing Power Input 240 VAC for 3C891 120 for 3C892 Output 13 VDC Ringer Equivalence Number 3 per analog phone port on up to 200 feet of REN AWG 26 or heavier AWG wiring Phone Port Loop Current 25 mA per port Ringing Voltage 42 VAC You
4. seconds connected The connection has Data call Indicates the length of time the current call has been been idle for seconds idle Number of octets Data call Indicates the number of octets bytes received by the received ISDN LAN Modem Number of octets Data call Indicates the number of octets bytes transmitted by transmitted the ISDN LAN Modem Calling telephone or Voice or data For an incoming voice or data call indicates the port number telephone number of the calling party For an outgoing voice call indicates the port from which the call was placed For outgoing data calls no information is provided Called telephone Voice or data For an outgoing data call indicates the telephone number number dialed to reach the service provider for the current call For an incoming voice or data call indicates the telephone number dialed from the far end For outgoing voice calls no information is provided Reason for call coming Data Indicates how the call was placed and which up workstation placed the call Depending on how the call was placed you should see something similar to the following Manual dial by Workstation A DNS query from Workstation A for http www xxx xxx If the call was automatically launched and the workstation does not know the IP address Packet from Workstation A to IP address xxxx If the call was automatically launched and the workstation knows the IP address Understa
5. gt What is subaddressing During initial set up you had the opportunity to enter up to two telephone numbers for your ISDN line You can make changes to these telephone numbers or add a third telephone number for your ISDN line You may want to add a third telephone number if you are using Multiple Subscriber Numbering MSN In addition you can configure Terminal Endpoint Identifiers TEI if your telephone company requires this By default TEI is set to automatic meaning your telephone company automatically assigns a TEI to your ISDN line MSN is a supplementary feature offered by some telephone companies which provides additional telephone numbers for your ISDN line With these additional telephone numbers you can dedicate a telephone number to each device attached to the ISDN LAN modem In the ISDN parameters window enter the telephone numbers assigned to your ISDN line To specify how to route calls using these telephone numbers refer to Changing Call Routing Your ISDN line must support MSN to allow multiple telephone numbers for a single ISDN line Check with your telephone company Subaddressing is another means of assigning specific numbers to devices attached to the ISDN LAN modem You can arbitrarily assign extensions to the ISDN telephone number to route calls to different devices Note that the telephone number and subaddress extension that you configure in the ISDN LAN modem must precisely match the dial string of
6. Address ja http 192 168 1 1 stwiz htm Links e Configure Modem e Dial or Hang Up e Register Modem e Updates e User Guide 0205551212 4 0205551213 Done m E Intemet zone Figure 38 ISDN Telephone Numbers Configuration Window Enter the first telephone number for your ISDN line If the telephone number contains a subaddress enter the telephone number followed by an asterisk and then the subaddress number For example type 020 555 1212 4 If you have another telephone number associated with your ISDN line enter it in the second telephone number field Otherwise leave this field blank Click Continue The ISP Wizard appears If you would like to configure a third ISDN telephone number for your ISDN line you can do so from the ISDN Parameters window at a later time Refer to Configuring ISDN Line Parameters on page 85 62 CHAPTER 5 CONFIGURING THE ISDN LAN MODEM 12 13 14 3 ISPWiz Microsoft Internet Explorer provided by 3Com Corporation Ele Edt View Go Favoites Help MA OL ao 3210 Back Forward Stop Refresh Home Search Favorites History Channels Fullscreen Mail Print Edit Address E http 192 168 1 1 ispwiz htm z Links KA Configure Modem E Dial or Hang Up E Register Modem EjUpdates gE User Guide ISP Wizard If you want to configure your LAN modem for Internet Access enter your Internet Service Provider I
7. From largest to smallest network types are referred to as Class A Class B Class C and Class D Within each class a certain number of bits identifies the class the network and the local address For example in a Class C network the first three bits 110 identify the network type as Class C The next 21 bits identify the network and the last eight represent the local or host address limiting the number of devices to 256 In contrast a Class A network allocates 24 bits for local addresses allowing for many more devices IP addresses are composed of four sets of eight bits usually separated by a period The IP address of the ISDN LAN Modem identifies the ISDN LAN Modem itself and the network it creates when devices are connected to the Ethernet ports Many networks are divided further into smaller sub networks A subnet mask is a number that identifies the sub network to which your computer is connected The subnet mask differentiates the part of the IP address that represents the network and the part that represents the host The bits of the subnet mask are set to 1 if the host should treat the corresponding bit in the IP address as part of the original network number These bits in the mask are set to 0 if the host should treat the bits as part of the device number as shown in Figure 56 IP Address Network Number Device Number Subnet Mask 11111111 11111111 11111111 00000000 Subnet Address Network Number Subnet Device Num
8. m La unidad no contiene fusibles ni otros componentes que el usuario pueda cambiar o reparar De producirse problemas cuya resoluci n no se explique en esta gu a p ngase en contacto con el proveedor de 3Com m Si las unidades que posee son apilables acople las que sean similares entre s ADVERTENCIA puertos de datos de par trenzado RJ45 Son enchufes blindados RJ45 a los que s lo deben acoplarse conectores de datos RJ45 No pueden utilizarse como enchufes telef nicos INFORMAZIONI IMPORTANTI PER LA SICUREZZA AVVERTENZA il testo delle avvertenze riporta importanti istruzioni alle quali occorre attenersi per motivi di sicurezza Seguire attentamente tutte le istruzioni Prima di installare l unit leggere attentamente le informazioni riportate di seguito m Procedere con estrema cautela durante l installazione e la rimozione dell unit m Collocare l unit vicino a una presa di corrente e verificare che la presa sia accessibile m Per garantire la conformit alle norme di sicu corrente fornito con l unit Se l adattatore n conforme alle norme locali e nazionali del pa rezza nazionali e internazionali usare l adattatore di on compreso il cavo alimentatore deve essere ese di destinazione nonch all omologazione di sicurezza del prodotto per ulteriori informazioni consultare la sezione relativa alle omologazioni riportata alla fine del manuale m Scollegare l adattatore prima di spostare l unit Per scollegar
9. Ethernet hub to allow up to 25 users to access the WAN Instructions for adding another Ethernet hub to allow 10 users a more common scenario is as follows Before You Begin In addition to an external 10BASE T Ethernet hub you will need a 10BASE T Ethernet cable which may have been provided with the additional hub If the hub to which you are connecting your LAN Modem does not have an MDI X switch you must use a crossover cable Insert one end of the 10BASE T Ethernet cable into one of the four LAN ports on the back of the ISDN LAN Modem as shown in Figure 15 Figure 15 10BASE T Hub to Hub Connection Insert the opposite end of the cable into a 10 BASE T Ethernet port on the other Ethernet hub If you are connecting to an OfficeConnect Hub 8 TPO insert the opposite end of the Ethernet cable into port 8 and then set the MDI X switch to MDI that is pressed in Make sure that the LED associated with that Ethernet port is lit If it is not try changing the MDI X switch setting Installing Analog Equipment gt Installing the ISDN LAN Modem 41 You can connect an analog touch tone telephone answering machine fax machine or external analog modem to the ISDN LAN Modem You will need an RJ 11 to RJ 11 cable that is supplied with the analog device for each analog phone port connection For users in the United Kingdom you may also need the phone port adapters provided in the package Users in other geographic locations ma
10. For This Call Information Type Description Call type Data or voice Indicates the type of call data or voice and the B channel rate 56 Kbps or 64 Kbps Call direction Data or voice Indicates whether the current call is incoming or outgoing Service provider name Outgoing data Indicates the destination to which the current call is connected IP address in use Data call Indicates the IP address assigned by the service provider Primary DNS address Outgoing data Indicates the primary DNS address of the service provider to which the current call is connected Secondary DNS address Outgoing data If a secondary DNS address is needed indicates the secondary DNS address of the service provider to which the current call is connected This field will be empty if a secondary DNS address is not needed continued Reviewing Statistics 109 Table 13 Current Call Information Description Current Call For This Call Information Type Description Data call options Data call If the current call is a data call indicates the type of data call Multilink PPP or PPP number of B channels in use for the call whether compression is on or off authenticatio type and whether BACP was negotiated on or not off For example Multilink 2B No BACP Compression On Call start time Voice or data Displays the date and time the call began The call has been up for Data call Indicates the length of time the current call has been
11. ISDN LAN Modem for the typical configuration The typical configuration covers the basic setup and includes what most users need to get up and running It provides instructions for setting up your ISDN line and connecting to the Internet If you followed the instructions in the Getting Started Guide you have already set up the typical configuration To see if there are any additional changes you would like to make you may want to look over Chapter 6 Advanced Configuration The configuration windows shown in this chapter may differ slightly from what is displayed on your computer Typical Configuration The typical configuration covers the following main steps Launch Web browser Set Password Select country Enter ISDN telephone numbers Run ISP Wizard Figure 34 Main Steps for Typical Configuration 56 CHAPTER 5 CONFIGURING THE ISDN LAN MODEM Before You Begin You Should Have Done This AN You Should Have This Information Determine Whether You Use Dynamic or Static IP Addresses Make sure that you have done the following Before you configure the ISDN LAN Modem you should have already done the following a Installed the hardware as described in Chapter 3 Hardware Description and Installation a Installed and set up TCP IP on all computers you intend to connect to the ISDN LAN Modem If TCP IP is not installed and set up refer to Chapter 4 CAUTION You shou
12. If you place a Multilink PPP call and the remote location you are calling does not support Multilink PPP a single B channel call will be established Receiving Calls Receiving Data Calls This sections describes how the ISDN LAN Modem receives data calls and voice calls and how distinctive ringing may be used to differentiate voice calls The ISDN LAN Modem can receive incoming data calls for the following purposes a Making changes to the previously defined connection types Refer to Chapter 6 Configuring the ISDN LAN Modem from a Remote Location for instructions Downloading the latest firmware Refer to Chapter 9 Downloading Firmware to Your ISDN LAN Modem for instructions a Reviewing ISDN LAN Modem statistics Refer to Chapter 9 Reviewing Statistics for instructions 96 CHAPTER 8 PLACING RECEIVING AND DISCONNECTING CALLS gt Distinctive Ringing Incoming calls for data transfer are not supported For example you cannot call into the ISDN LAN Modem to use a computer as a server that others would dial into and use for downloading information To change the default routing refer to Changing Call Routing in Chapter 6 Specialized telephone equipment such as some speakerphones answering machines and fax machines that require more than 42 VAC ringing voltage may not detect incoming calls Refer to Appendix D for details You can configure the ISDN LAN Modem to distinguish between tel
13. LAN Modem s main configuration page Click Workstations Select the name of computer you removed and then click Select Click Release Workstation Entry Reboot the workstation The newly added workstation can now be assigned an IP address If you cannot release a workstation entry connect a telephone to one of the ISDN LAN Modem s phone ports and press 3COK from the keypad to release all IP addresses assigned by the LAN Modem Although multiple service You may not have configured the From the ISDN LAN Modem s home page click Service providers are configured all IP address and the subnet mask Providers and then select the private network profile calls are going to the same in the Private Network you already configured Enter the IP address and the service provider which is a Parameters window subnet mask for the private network private network Clicking Submit in the LAN JavaScript may not be enabled in Enable JavaScript via your Web browser s configuration Modem s configuration pages your Web browser options does not take you to the next screen The Windows 95 Connect Networking is setup for use with To bypass the Connect To window To window opens upon a serial port modem 1 Double click the Internet icon in the control panel 2 Clear the check box labeled Connect to the Internet as needed 3 Click OK This allows all outgoing connections to run directly through your ISDN LAN Modem launching a We
14. Mail Print Edit Address E http 192 168 1 1 mainPage htm hd Links 42 Configure Modem DialorHangUp 22 Register Modem 43 Updates 9 User Guide Euro ISDN Data Call Parameters Timeout Values Minimum call duration 120 seconds Disconnect an automatic data call after how long of an inactivity period 30 seconds Disconnect a manual data call after how long of an inactivity period 300 seconds Bandwidth on Demand Parameters 128K Call Multilink PPP Connect Disconnect threshold for the second B channel feo Connect delay fio seconds Disconnect delay feo seconds Reset Form Data Call Parameters 155 Intemet zone Figure 48 Data Call Parameters Window Minimum Call Duration The minimum call duration is the minimum length of a call that is measured and must be satisfied before a call is disconnected The default for the minimum call duration is 2 minutes Disconnecting an Automatic Data Call An automatic data call is a call made automatically by the LAN Modem because of activity on the LAN to the WAN An example would be a user launching his or her Web browser Because the parameters for the call such as the telephone number and user name have been previously defined a call to an ISP for example may be automatically and transparently launched with a click of your Web browser You can define the amount of time the LAN Modem should wait before disconnecting this type of dat
15. Microsoft Internet Explorer provided by 3Com Corporation File Edt View Go Favorites ra ee ARAS A Back Forward Stop Refresh Home Search Favorites History Channels Fullscreen Mail Print Edit Address E hitp 7192 168 1 1 mainPage him Links 43 Configure Modem 43 Dial or Hang Up 8 Register Modem 42 Updates 48 User Guide Euro ISDN Service Provider Selection Service Providers New Private Network Select Service Provider Selection This section allows you to create a new Service Provider profile either an ISP or a Private Network or to access existing Service Provider parameters You can configure a total of four Service Provider profiles H E Done TT Intemet zone Figure 45 Private Network Service Provider Selection Window The Private Network Parameters window appears Private Network Parameters Name Telephone Number HH Alternate y Number Security UserID Password Domain Name Service DNS IP Address es Leave blank if automatically assigned by your Service Provider O Primary J Secondary EJE IC IL optional Bandwidth Allocation Use one B channel Add second B channel as required Use two B channels Private Network Parameters Private Network IP Address J J J Private Network Subnet mask J J J Private Network Domain Name Miscellaneous Do you want to use this Private Network to access the Internet Yes No B Cha
16. Password button Password Password repeat Figure 36 Set Password Window 3 Enter a password in the Password field and then enter the same password in the Password repeat field to confirm it If you do not wish to enter a password leave the fields empty 4 Click Submit A message box indicates that your password has been set The Country Selection window appears 3 country Microsoft Internet Explorer provided by 3Com Corporation Country Selection Please select a country from the list below If your country is not in the list select Euro ISDN Australia OnRamp Australia MicroLink Austria Figure 37 Country Selection Window 5 Select your country If your country is not listed select Furo SDN Before You Begin 61 There are two choices for the UK ISDN2 and ISDNZe Select the one which reflects the ISDN version you are using ISDN2e is the latest version and therefore the recommended selection However you should check with your telephone company to determine the appropriate version to select Click Submit The ISDN telephone number s screen appears as shown in Figure 38 You must enter the ISDN telephone number s to ensure proper call routing E stwiz Microsoft Internet Explorer provided by 3Com Corporation File Edit View Go Favorites Help Se 5 5 amp JB fa Back Forward Stop Refresh Home a 3 Search Favorites History Channels Fullscreen Mail Print
17. Schedule Remote Log On Off Access bl D NetWatcher WinPopup WinMeter Chat Figure 32 Network Group Box 4 From the Network Setup dialog box click the Drivers button 5 From the Network Drivers dialog box click Add Protocol 6 Select Unlisted or Update Protocol and then click OK 7 From the Install Driver dialog box enter the path to the MS TCP directory For example if you installed MS TCP on your C drive in a directory called MSTCP you would enter CAMSTCP 8 Select MS TCPAP 32 X and then click OK to install The protocol is added to the list as shown in Figure 33 TCP IP Setup Using Windows 3 11 53 gt Network Setup Network Settings a a Setup will install Windows support for the following network s on your computer Microsoft Windows Network version 3 11 Cancel Help You cannot share your files or printers with others Network Drivers E 3Com EtherLink Ill NDIS2 NDIS3 Drivers F Microsoft NetBEUI with NetBIOS Figure 33 Network Setup Dialog Box 9 After the installation is complete click Close 10 Click OK 11 From the MS TCP IP Configuration dialog box check the Enable Automatic DHCP Configuration check box and then click OK 12 Restart your PC to allow the changes to take effect 54 CHAPTER 4 SETTING UP TCP IP FOR WINDOWS AND MACINTOSH oe they tor gt CONFIGURING THE ISDN LAN MODEM This chapter describes how to configure the
18. TunnelBuilder is a trademark of TeleSystem Other brand and product names may be registered trademarks or trademarks of their respective holders Guide written by Anne Vigna Stone IMPORTANT SAFETY INFORMATION WARNING Warnings contain directions that you must follow for your personal safety Follow all instructions carefully Please read the following information carefully and thoroughly before installing the unit Take exceptional care during the installation and removal of the unit Locate the unit close to the mains socket outlet and ensure that the mains socket is accessible Use the power adapter supplied with the unit to ensure compliance with national and international safety standards If there is no power adapter supplied the mains cordset used must be compliant with the local and national regulations of the target country and must not violate the safety approval of the product refer to the Approvals section at the back of this manual Disconnect the power adapter before moving the unit Power can only be disconnected from the unit by removing the power adapter from the unit or from the socket outlet Only connect apparatus complying with the relevant interface requirements to the ports on this unit The safety status of the ports on this equipment are as follows Port identified by the label ISDN TNV TNV Telecoms Network Voltage is a circuit which under normal operating conditions carries telecommunication signal
19. a Back Forward Stop Refresh Home Search Favorites History Channels Fullscreen Mail Print Edit Address fe http 4 192 168 1 1 mainPage htm fal Links 43 Configure Modem DialorHangUp 43 Register Modem 42 Updates 42 User Guide Euro ISDN Call Routing MO Route calls as follows ISP Wirar io Telephone Phone Phone Data Numbers Port 1 Port 2 Call Manual Calling 0205551212 4 v E v 0205551213 r m F Call Routing This section allows you to assign a specific telephone number to a specified analog phone or the data port E Done Po Intemet zone Figure 49 Call Routing Window 2 Specify which Phone port if any should handle calls associated with Telephone Number 1 by checking the appropriate phone port box If you would also like to use this telephone number for data calls check the data box 3 If your ISDN line has a second telephone number specify which phone port if any should handle calls associated with Telephone Number 2 If you would also like to use this telephone number for data calls check the data box 4 If your ISDN line has a third telephone number specify which phone port if any should handle calls associated with Telephone Number 3 gt Changing Country Selection 83 If you would also like to use this telephone number for data calls check the data box Click Submit If you want to password protect the configuration profile of the ISDN LAN mode
20. a tunnel the client side must have PPTP tunnel client software such as Windows Dial Up Networking version 1 3 which includes the required software VPN adapter or Windows NT operating system with Service Pack 3 or Network TeleSystem s TunnelBuilder VPN software for Windows 3 11 and Macintosh operating systems This software should reside on all workstations that wish to create a tunnel to the tunnel server Follow instructions provided for installation and set up Establishing a Tunnel via the ISDN LAN Modem Understanding VPNs and PPTP 33 For Windows Dial Up Networking Users If you are using Windows Dial Up Networking version 1 3 the basic set up steps are as follows Refer to Windows user documentation for details a Install the PPTP protocol m Create a RAS phone book entry for the VPN A RAS phone book entry is similar to other phone book entries except there is an IP address in the Phone number field Once the Phone book entry is complete you can double click the icon to dial into a server that supports PPTP via any ISP Note that protocols required for the private network must be installed on each PPTP tunnel client as well as PPTP tunnel server As with PPP no configuration is required on the LAN Modem to use PPTP However you must have an ISP configured on the LAN Modem Once the client side and server side are configured you are ready to create a tunnel The steps required for creating a tunnel vary depending on whic
21. an Apple Macintosh computer You do not have to have available storage space on your computer s hard drive because nothing is copied as part of the ISDN LAN Modem installation If you want to copy any programs or documents from the CD ROMs ensure that you have available hard disk space 36 CHAPTER 3 HARDWARE DESCRIPTION AND INSTALLATION IBM PC or Compatible Requirements Apple Macintosh Requirements gt Your IBM compatible PC must have the following a A 386 486 or Pentium processor a 10BASE T Ethernet card a Microsoft Windows 98 95 Windows NT or Windows 3 11 a A CD ROM drive Your Apple Macintosh computer must have the following a System 7 1 or later operating system Open Transport version 1 1 or later recommended a A CD ROM drive a Ethernet interface Built in Ethernet connectivity is provided through an Apple Ethernet port in the Macintosh Centris 650 most Macintosh Quadra computers and all Power Macintosh computers For other Macintosh computers Apple offers several interface cards Refer to the Apple Web site http www apple com for more information Front Panel LED Description The front panel provides the following LEDs pe y gt gt gt 0 LAN STATUS OFFIce o AO E ma a E EE HEE HE E H CONNECT aet POWER IRON BI B2 TX COLL 1 2 3 4 a Modom Figure 11 ISDN LAN Modem Front Panel The functions of the front panel LEDs are described in Table 4 These fron
22. and the public switch Dynamic Bandwidth Allocation DBA is a method of reallocating bandwidth such as a B channel automatically DBA allows you to place or receive a voice call while a Multilink PPP call is active Dynamic Host Configuration Protocol DHCP allows a server to automatically assign an IP address to a newly attached computer on an IP network Value set at the factory A domain is a unique name which refers to a single entity on the Internet and is used for organizational purposes Domain Name Server DNS translates the common alphabetic name into the numeric IP address For example floyds_PC is translated to 193 6 14 2 126 GLOSSARY Firmware IP address ISDN Kbps Layer 1 Multilink PPP Network terminator NT1 PAP PC TCP POTS PPP PPTP PRI router TCP IP UDP Firmware is the code which resides in the ISDN Modem and controls its behavior It differs from software in the form of programs that run on your computer An IP address is a set of numbers that uniquely identifies each device in a network Integrated Services Digital Network ISDN provides a digital telephone service which allows both data and voice communication over the same telephone line and at significantly faster speeds than the traditional POTs service There are two types of lines which provide access to ISDN BRI and PRI Kilobits per second Kbps is the rate at which data is transmitted between communication equip
23. check with your telephone company There may be a problem with your ISDN line If the ISDN LED is illuminated attempt to place a call and observe the B channel LED s The B1 and B2 LEDs flash amber for a voice call or green for a data call during the call establishment phase and then blinks faster during the PPP establishment phase They then remain solid amber or green once the connection is established If they do not remain solid amber or green refer to the Troubleshooting Problems Indicated by LEDs section Observe the LAN port status LED labeled 1 2 3 or 4 depending on the port number to which your computer is connected If the LED s is lit the ISDN LAN Modem detects the Ethernet link signal and operation is normal When the computer attached to that port is transmitting data to the LAN this LED flashes If the port status LED is Off the ISDN LAN Modem does not detect the Ethernet link integrity signal Refer to the Troubleshooting Problems Indicated by LEDs section First ensure that the workstation is powered on If so then the Ethernet cable may not be properly connected or it may be the wrong polarity Troubleshooting Problems Indicated by LEDs 101 Monitoring LEDs Table Table 8 lists the states of ISDN LAN Modem LEDs which indicate errors and also provides possible causes and solutions Table 8 Troubleshooting Problems Indicated by LEDs LED LED State Possible Cause Solution ALERT L
24. double click Network The Network dialog box appears Select the Protocols tab as shown in Figure 25 NetBEUI Protocol EJOpeies Figure 25 Windows NT Protocols Configuration Window TCP IP Setup Using Windows NT 4 0 49 3 Click Add The Select Network Protocol dialog box appears as shown in Figure 26 Select Network Protocol 12 xi Click the Network Protocol that you want to install then click OK IF Rie you have an installation disk for this component click Have Disk Network Protocol Y NetBEUI Protocol p Y NWLink IPX SPX Compatible Transport 97 Point To Point Tunneling Protocol lil Y Streams Environment Have Disk DK Cancel Figure 26 Select Network Protocol Dialog Box 4 Select TCP IP Protocol and then click OK The following message appears TCP IP Setup If there is a DHCP server on your network TCP IP can be configured to dynamically provide an IP address If you are not sure ask your system administrator Do you wish to use se E Figure 27 DHCP Message Box 5 Select the appropriate response for your network 6 You are then prompted to insert your installation CD ROM Insert the Windows NT 4 0 CD ROM and then click Continue i gt For users who have Remote Access Service RAS installed on their PC after the appropriate files are copied to your PC a message box asks whether or not you would like TCP IP installed for RAS If you select Yes you must sel
25. enter the telephone number in the Number field If your private network requires that you dial two telephone numbers to establish a Multilink PPP call select Multilink from the drop down list box and then enter the telephone number in the Number field 6 Under Security enter your User ID and password 7 Under DNS IP Address es if this private network uses static IP addresses that is 10 11 12 these IP addresses are not supplied when a dial up connection is established enter the primary DNS IP address of your private network in the Primary field If there is a secondary address enter it in the Secondary field Specify Bandwidth Allocation a Use one B channel When selected one B channel is used to connect to this service provider Add second B channel as required When selected the second B channel is added when the first B channel reaches a certain threshold The threshold default is 60 To change the threshold default refer to Changing Data Call Parameters The second B channel is temporarily removed when you place or answer another call Use two B channels When selected both B channels are used to connect to this service provider that is always use Multilink PPP Note that this prevents another call data or voice to be placed or received as there is no available bandwidth that is the second B channel cannot be temporarily removed Under Private Network Parameters enter the IP address subnet m
26. failed connections Total number of octets received Total number of octets transmitted Total connection time seconds Indicates the total number of successful connections to each service provider Indicates the total number of unsuccessful connections to each service provider Indicates the total number of octets bytes received by the ISDN LAN Modem Indicates the total number of octets bytes transmitted by the ISDN LAN Modem Indicates the collective amount of time connected to each service provider so far oo NETWORKING PRIMER This chapter provides a description of basic networking concepts and terminology to help you better understand the key functionality of the ISDN LAN Modem What is a network What is a LAN What is a WAN A network is a set of computers and other devices such as printers modems and scanners that are connected together either directly via physical cables or indirectly via dial up telephone services A network can be in the same room the same building covering a local area or geographically dispersed covering a wide area A Local Area Network LAN is two or more computers linked together in a contained location such as an office building By linking the computer together and creating a LAN users can share files and share access to printers To physically create a LAN each computer must be linked together using some type of cabling Typically Ethernet cabling is use
27. from the illustration as well as links from the buttons listed in the left vertical frame By clicking on the icons in the illustration you can jump to the following locations Service Providers Jumps to the Service Providers page where you can configure a connection to an ISP or a private network Workstations Jumps to the Workstation Selection page where you can view a workstation s IP address and can change its associations with service providers ISDN Parameters Jumps to the ISDN Parameters page where you can manually configure ISDN parameters LAN Parameters Jumps to the LAN Parameters page where you can configure Ethernet parameters for the ISDN LAN Modem Data Call Parameters Jumps to the Data Call Timeout Parameters page From here you may set inactivity timers which allow calls to be disconnected due to network inactivity keeping telephone usage and Internet access costs down Call Routing Jumps to the Call Routing page where you can configure how you would like data and voice calls routed Current Call Status Jumps to the Call Statistics page where the latest call information is displayed Home Jumps to the main configuration page of the ISDN LAN Modem ISP Wizard Allows you to configure an ISP If you already configured an ISP using the ISP Wizard and then you run ISP Wizard again the latest ISP will overwrite the previous one To add a second ISP go to the Service Providers page Manual Calling Jumps to
28. if the ISP to which you want to connect does not assign a dynamic IP address and wants you to use a static IP address enter the IP address and the subnet mask in the WAN link fields Otherwise leave these fields empty Under Miscellaneous indicate whether or not you would like to use compression when transferring data by selecting the appropriate radio button For Allow Automatic Call Initiation leave the default setting which is Yes 72 CHAPTER 6 ADVANCED CONFIGURATION 15 16 17 18 gt Setting Up a Connection to a Private Network If you select No you will have to manually launch a call to this service provider every time you want to connect You may want to set this field to No if your calls are being connected unintentionally as a result of packets generated by your workstations In the Default Workstation for Incoming Packets field specify the workstation to which all unsolicited TCP UDP packets should be delivered Note that if the Allow Automatic Incoming NAT field is set to Yes the ISDN LAN Modem first attempts to deliver the unsolicited TCP UDP packets to the workstation that is currently communicating with the remote host that has generated these packets Only if no such workstation is found are the packets delivered to the specified default workstation For Enable Intelligent NAT leave the default setting which is Yes in order for the LAN Modem to support Internet applications and games The ISDN LAN M
29. is enabled Enable intelligent NAT Yes No e Default Workstation Unknown1 Submit Reset Form Delete Entry Figure 44 ISP Parameters Window 4 In the Name field enter a name for this remote destination such as the name of the ISP You may want to add an additional description if you have more than one account with this particular ISP 5 gt In the Telephone Number 1 field enter the telephone number you must dial in order to reach your ISP If the telephone number contains a subaddress enter the telephone number followed by an asterisk and then the subaddress number For example type 020 555 1212 3 In the Alternate Number field you can either enter an alternative number or if required by your ISP a second telephone number to establish a Multilink PPP call To enter a second alternative telephone number for your ISP that will be automatically dialed if for example the first number is busy select A ternate and then enter the telephone number in the Number field Some ISPs may require that you dial two telephone numbers to establish a Multilink PPP call If so select Multilink from the drop down list box and then enter the telephone number in the Number field 7 Under Security enter your User ID and Password 8 Under DNS IP Address es if your ISP uses static IP addresses that is your ISP does 10 11 12 13 14 not supply these addresses when a dial up connection i
30. it allows a maximum of Workstation Entry Reboot the workstation The newly LAN Modem 25 added workstation can now be assigned an IP address If you cannot release a workstation entry connect a telephone to one of the ISDN LAN Modem s phone ports and press 3COK from the keypad to release the last IP address assigned by the LAN Modem continued 104 CHAPTER 9 TROUBLESHOOTING AND MAINTENANCE Table 9 Symptoms Causes and Solutions Symptom Possible Cause Solution Some application software Application may have an If you have a static network disable NAT and try using doesn t work properly embedded IP address which the application again Do not disable NAT if your causes a problem when NAT is network is dynamic enabled on the ISDN LAN Modem The user name and or password Make sure that the user name and password for this for this service provider may not service provider are entered accurately be entered properly A connection has been There is an interoperability Make sure that the local and remote data applications established B1 or B2 green mismatch between the local and have communications capability and are properly LED remains lit but data remote applications configured cannot be sent Calls continue to reconnect or An application or LAN device is Go to Current or Last Call Statistics and check Reason calls do not timeout and sending IP packets for call coming up disconnect Or set the workgroup on ea
31. must use the power supply provided with your ISDN LAN Modem Year 2000 Compliance The OfficeConnect ISDN LAN Modem is Year 2000 compliant Specifically its system clock is capable of accepting and storing dates including and beyond the year 2000 For information on Year 2000 compliance and 3Com products visit the 3Com Year 2000 web page http www 3Com com products yr2000 html 122 APPENDIX D ISDN LAN MODEM SPECIFICATIONS Ring Cadences The following table lists the ring cadences for voice calls The ring cadence is set based on the country you selected when you set up the ISDN LAN modem Table 18 Country Ring Cadence in seconds Australia 0 4 on 0 2 off 0 4 on 2 off Austria 1 on 5 off Belgium 1 on 3 off Republic of China 0 4 on 0 2 off 0 4 on 2 off Denmark 1 on 4 off Finland 1 on 4 off France 1 5 on 3 5 off Germany 1 on 4 off Hong Kong 0 4 on 0 2 off 0 4 on 3 off Indonesia 0 4 on 0 2 off 0 4 on 2 off Ireland 0 4 on 0 2 off 0 4 on 2 off Italy 1 on 4 off Japan 1 on 2 off Korea 1 on 2 off Luxembourg 1 on 4 off Malaysia 0 4 on 0 2 off 0 4 on 2 off Netherlands 1 on 4 off New Zealand 0 4 on 0 2 off 0 4 on 2 off Norway 1 on 4 off Portugal 1 on 5 off Singapore 0 4 on 0 2 off 0 4 on 2 off South Africa 2 on 4 of
32. on the LAN with selected service providers a Edit service provider profiles If you set up a connection to an ISP as part of the typical that is initial setup via the ISP Wizard then you already have one service provider defined Because this is considered a typical configuration some default values have been assumed For example the connection to an ISP is associated with all of the computers connected to your LAN In other words all computers up to 10 on the LAN can connect to that ISP and therefore the Internet You may want to review the profile for this ISP to see if you want to make any changes For instructions refer to Editing Service Provider Profiles There are two types of service providers you may configure an ISP and a private network A description of each follows When to Select ISP Choose ISP when you want to set up a direct connection to the public Internet via an Internet Service Provider as shown in Figure 41 ort Internet or N online service A ER 4 Ne ISDN LAN Modem y EN Na SA Ison outlet s Wik Mag X i 2 a qe aS id AN ea z Figure 41 Direct Connection to an ISP Setting Up a Connection to an ISP When to Select Private Network Select private network when you want to connect directly to a remote private LAN such as a corporate network shown in Figure 42 For instance if you want to dial into your main office from home in order to access the servers at your off
33. one of two access methods to the ISDN BRI is the other Each PRI consists of thirty 64 Kbps B channels and one 64 Kbps D channel A router is a device that links networks Transmission Control Protocol Internet Protocol TCP IP is a standardized communications protocol which allows different types of devices to communicate with each other over LANs and WANs User Datagram Protocol A connectionless protocol within TCP IP that converts application generated data messages into packets that can be sent via IP UDP does not check for transmission errors therefore it does not perform VPN GLOSSARY 127 retransmission Reliability is dependent upon the application Note that because it does not perform checking UDP is more efficient than TCP UDP is commonly used for Internet games A virtual private network is a secure private data network that is established over the Internet resulting in significant cost savings from using local toll free access numbers Also because the existing Internet backbone is used there is less investment needed in private network infrastructure See also PPTP 128 GLOSSARY 3Com Corporation LIMITED WARRANTY OfficeConnect ISDN LAN Modem HARDWARE 3Com warrants this hardware product to be free from defects in workmanship and materials under normal use and service for the following length of time from the date of purchase from 3Com or its authorized reseller Lifetime except that the fan and power
34. place or receive a voice or data call while a Multilink PPP call is active Manual call connection and disconnection Remote Management Remote management using the same Web browser interface Voice Features a Call Waiting a Calling Line Identification Restriction CLIR a Malicious Call Identification MCID Protocols m IETF PPP RFC 1661 1662 1663 a IETF Multilink PPP RFC 1990 PPTP Point to Point Tunneling Protocol PPTP draft ietf pppext pptp 02 txt a ETF Password Authentication Protocol PAP RFC 1334 and Challenge Handshake Authentication Protocol CHAP security RFC 1994 a MS CHAP support as defined in Network Working Group Information Memo Microsoft PPP CHAP Extensions S Cob Rev 1 3 March 1997 including only the functionality that keeps with IETF 1994 a P address negotiation using IPCP RFC 1332 m CCP RFC 1962 1974 a BACP BAP RFC 2125 a Network Address Translation between LAN and WAN RFC 1631 ISDN Standards and Interface a Basic Rate ISDNinterface compatibility with ETSI BTNR 191 VN3 and NTT switches Security PAP CHAP and MS_CHAP support on both single channel and Multilink PPP calls Upgradability a Flash memory for field firmware updates a Firmware posted on 3Com s Web sites Features 23 Diagnostics a LED status display a Statistics display Warranty a Lifetime Limited Warranty refer to the back of this User Guide for details Interne
35. telephone network Tas ss FESSA Dieta PERES 16 Kbps D Channel ISDN BRI line Figure 53 ISDN BRI Line in Detail A single B channel transmits data or voice traffic at a rate of up to 64 Kbps The B channels may be used independently to allow two simultaneous connections to different locations as shown in Figure 54 How do different devices communicate with each other What is TCP IP What is a network 113 Internet Intranet or online service B channel 1 Remote office OfficeConnect ISDN LAN Modem pa a B channel 1 B channel 2 B channel 2 Public telephone network ISDN BRI line Figure 54 Two Simultaneous Connections The B channels may also be combined using the Multilink PPP feature to allow one higher speed connection to a single location as shown in Figure 55 Internet Intranet or online service 128 Kbps B1 8 B2 Remote office LAN OfficeConnect ISDN LAN Modem 64 Kbps B1 i 7 e 64 Kbps B2 4 Public telephone network Combining both B channels with Multilink provides a single 128 Kbps connection Without compression Figure 55 Using Multilink to Combine B Channels for a Single High Speed Link Once the computers are physically connected in a network they must run some type of standard communications software that allows different types of computers to communicate with each ot
36. the Manual Calling page where you can connect and disconnect calls Statistics Jumps to the Statistics page where you can view statistics regarding the following system ISDN current call last call and service provider Maintenance Jumps to the Maintenance page where you can reset the ISDN LAN Modem as well as place the ISDN LAN Modem in firmware download mode in order to download the latest firmware Password Jumps to the Password page restrict access to the LAN Modem WebWizard by configuring a password Context sensitive help is available in the bottom frame of each configuration screen To increase the size of the help frame drag the pane separator up This chapter covers the typical configuration steps required for a basic understanding of your ISDN LAN Modem functionality For further configuration options refer to Chapter 6 Advanced Configuration 66 CHAPTER 5 CONFIGURING THE ISDN LAN MODEM oe they e Seeee gt ADVANCED CONFIGURATION This chapter describes how to configure advanced settings for the ISDN LAN Modem For instance setting up a connection to a private network such as a remote office LAN and changing default settings You should follow the typical configuration steps first so that you can have your ISDN line parameters set up before you configure the advanced parameters Specifically this section provides instructions for doing the following a Setting up additional service provi
37. the incoming call in order for the call to be routed properly For example if you enter 020 555 1212 in the Telephone number 1 field and then enter 2 in the subaddress field incoming calls must include all of these digits 020 555 1212 2 Otherwise the call is ignored If you are using MSN you will have a different telephone number in each telephone number field If you are using subaddressing enter the same telephone number in each telephone number field The unique number in the subaddress field is used to route the call to the correct device To configure ISDN line parameters do the following From the ISDN LAN modem main page click the wall outlet graphic The ISDN Parameters window appears 86 CHAPTER 6 ADVANCED CONFIGURATION 24 MainPage Microsoft Internet Explorer provided by 3Com Corporation File Edit View Go Favorites Help an S gt n O A a 8 E Back Forward Stop Refresh Home Search Favorites History Channels Fullscreen Mail Print Edit Address fe http 192 168 1 1 mainPage htm Links 48 Configure Modem Dial or Hang Up 68 Register Modem 82 Updates 62 User Guide Euro ISDN ISDN Parameters Telephone Number 1 0205551212 4 Telephone Number 2 0205551 213 Telephone Number 3 O TEL Automatic C Fixed 0 63 o Submit Reset Form ISDN Parameters Use this screen to manually configure your ISDN line parameters Your telephone company will prov
38. the second B channel is allocated or below which the first B channel must fall before the second B channel is removed By default the threshold is 60 Connect Delay This field defines the length of time the ISDN LAN Modem should wait before adding the second B channel The default is 10 seconds This default in combination with the Connect Disconnect Threshold default means that after a B channel reaches over 60 throughput for ten seconds a second B channel is added if not in use by another call Disconnect Delay This field defines the length of time the ISDN LAN Modem should wait before removing the second B channel The default is 20 seconds This default in combination with the Connect Disconnect Threshold default means that if throughput falls below 60 for 20 seconds a B channel is removed To configure data call parameters do the following From the ISDN LAN Modem main page click Data Call Parameters Specify the minimum call duration Specify the inactivity period for an automatic data call Specify the inactivity period for a manual data call If you specified that you want to use the second B channel only when needed enter the percentage of bandwidth that must be reached on the first B channel before the second B channel is added or removed If you specified that you want to use the second B channel only when needed enter the length of time the ISDN LAN Modem should wait before adding the second B channel afte
39. these telephone keys To do this 31 Enable CLIR for the call you are about to place on the phone port to which the handset is connected 31 Disable CLIR for the port to which the handset is connected 31 Check if CLIR is enabled or disabled A double tone indicates this feature is enabled A triple tone indicates this feature is disabled Malicious Call Identification MCID MCID allows you to request the trace of malicious calls on a call by call basis The MCID function can be invoked at any time while a call is coming in by pressing 39 on a handset connected to a phone port attached to the ISDN LAN modem Your telephone company switch must support MCID in order for you to use it Check with your telephone company 92 CHAPTER 7 SUPPLEMENTARY VOICE CALL SERVICES PLACING RECEIVING AND DISCONNECTING CALLS oe they o This chapter covers the following main topics a Placing calls automatically and manually a Receiving calls a Disconnecting data calls Placing Calls You can place calls from your computer through the ISDN LAN Modem to a remote location either automatically by using one of the service provider connections you set up or manually by entering the telephone number of the destination i gt 3Com assumes no liability for phone charges or other expenses incurred in connection with the use of this product Placing a Call To place a call using one of the service provider c
40. this if you have workstations on your LAN with static IP addresses and other workstations on the same LAN with dynamic IP addresses If you have more than one ISP configured all calls will be routed to the first ISP listed To connect to another ISP that you have configured uncheck the box es of the ISP s that you do not wish to use at this time To change the association between service provider connections and a particular computer on the LAN do the following From the ISDN LAN Modem main page click Workstations From the Workstations drop down list box select the Workstation for which you would like to change the accessible service providers Check or clear the boxes of the service providers you would like to associate or disassociate Click Submit If you want to password protect the configuration profile of the ISDN LAN Modem refer to Locking and Unlocking the Configuration Editing Service Provider Profiles Edit a service provider profile you have previously configured as follows From the ISDN LAN Modem main page click the Service Providers graphic A drop down list box appears which contains the names of the service providers you have configured Select the name of the service provider connection profile you would like to edit The connection profile page appears Edit the fields as desired For more information on the fields refer to the appropriate section Setting Up a Connection to an ISP o
41. to your ISP For information on these parameters and instructions for changing their default values refer to Editing Service Provider Profiles Click Continue to connect to the ISDN LAN Modem Web site where you should register the product and view the ReadMe file which contains the latest information Bookmark this URL for all the latest up to date information about your ISDN LAN Modem http www remoteaccess 3com com support docs lanmodem If you cannot access a Web site and your computer has a static IP address refer to Configuring a Static IP Address on the ISDN LAN Modem If you experience any other problems refer to Chapter 9 Troubleshooting and Maintenance To return to the LAN Modem main configuration page click Configure Modem from the Web page If you followed the steps in Configuring the ISDN LAN Modem for the Typical Configuration and were not able to connect to a Web site and your computer has a static IP address there may be an incompatibility between the IP address on your computer and the IP address on the ISDN LAN Modem To correct this do the following Enter the following URL in your Web browser http 3Com OC 1lanmodem mainpage From the ISDN LAN Modem s main configuration page click on the ISDN LAN Modem icon in the illustration The LAN Ethernet Parameters page appears In the IP Address field enter the default gateway address you entered as described in Setting Up Your C
42. unit This causes the software to restart while maintaining your configuration profile which includes service provider information and ISDN line telephone numbers Two Analog Telephone Ports You can connect analog equipment such as a fax machine or telephone to these ports 38 CHAPTER 3 HARDWARE DESCRIPTION AND INSTALLATION Four 10BASE T Ethernet Ports Connect the computers to these ports or another Ethernet hub to add up to 10 users a ISDN Basic Rate Interface Port Connect the ISDN cable to this port Installing the ISDN LAN Modem Before You Begin Installing the ISDN Cable 1 This section describes how to do the following a Install the ISDN cable Connect to a 10BASE T Ethernet LAN a Install analog equipment a Install the power cable Before you begin you will need the following in addition to the ISDN LAN Modem which was provided in the package f you have the ISDN LAN Modem with an S T interface you received an RJ 45 8 pin to RJ 45 8 pin cable labeled ISDN If you have the ISDN LAN Modem with a U interface you received an RJ 11 6 pin to RJ 45 8 pin cable labeled ISDN 10BASE T Ethernet cable 8 pin to 8 pin connectors labeled Ethernet which was provided in the package It is recommended that you use the cable provided If however you choose to use another cable it must be a straight through 10BASE T Ethernet cable It cannot be a crossover cable a Power adapter provided you must use
43. used in conjunction with a 3 turn ferrite This product carries the CE certification mark to indicate conformance with the following EU directives LVD Low Voltage Directive Safety 73 23 EEC EMC Electro Magnetic Compatibility Directive 89 336 EEC TTE Telecommunication Terminal Equipment Directive 91 263 EEC This product conforms to CTR3 based on NET3 ISDN interface INDEX A analog equipment installation 41 B B channel LEDs 100 101 BACP 30 125 bandwidth on demand parameters 97 BAP 30 125 C call routing analog ports for PC using Windows 82 Challenge Handshake Authentication Protocol CHAP 22 125 changing data call parameters 79 supplementary voice services 89 voice call routing 82 your password 84 configuration advanced 67 data call parameters 81 from a remote location 87 LAN parameters 77 typical 55 59 connecting 10BASE T Ethernet port 39 analog devices 41 another Ethernet hub 40 power cable 42 conventions notice icons About This Guide 18 text About This Guide 18 l installation analog equipment 41 ISDN cable 38 power cable 42 Internet Service Provider setting up a connection to 69 IP address determining if static or dynamic 56 resetting workstation Macintosh 102 Windows 95 102 Windows NT 4 0 102 ISDN cable installation 38 manual configuration 86 L LAN parameters configuring 77 understanding 77 LEDs description 36 monitoring 100 locking the configuration 86
44. you can set are as follows Minimum Call Duration Enter the minimum length of a call that is measured before the ISDN LAN Modem detects inactivity on the connection and then starts an inactivity timer The default is 2 minutes Idle Timeout In the field Disconnect a data call after how long of an inactivity period enter the number of seconds after which a call should be disconnected because of inactivity Once the minimum call duration is satisfied and then no activity is detected for a call this timer is started To prevent a data call from being disconnected because of inactivity enter O The default for an automatic call is 30 seconds The default for a manual call is 15 minutes You can specify when you want a second B channel to be added automatically based on the utilization of the first B channel Connect Disconnect threshold for the second B channel If you specified that you want to use the second B channel only when needed indicate the percentage of bandwidth on the first B channel which must be reached before the second B channel is allocated By default the threshold is 60 Connect Delay This field defines the length of time the ISDN LAN Modem should wait before adding the second B channel By default the length of time is 10 seconds Therefore this default in combination with the Connect Disconnect Threshold default means that after a B channel reaches over 60 throughput for 10 seconds a second B channel is adde
45. 6 Select the Configuration tab The Network Configuration dialog box appears Select TCP IP and then click Properties If you have multiple TCP IP entries select TCP IP for the Ethernet card associated with the ISDN LAN Modem E Client for Microsoft Networks 3Com Fast EtherLink XL 10 100Mb TX Ethernet Adapter Y NetBEUI TCP IP Client for Microsoft Networks 7 Figure 22 Network Dialog Box 8 From the TCP IP Properties dialog box select the IP Address tab TCP IP Properties E Figure 23 TCP IP Properties Dialog Box 9 Most users need to select Obtain an IP address automatically because most LANs use dynamic IP addresses If your LAN uses static IP addresses enter the IP address and subnet mask You can obtain this information from your system administrator or ISP 10 Select Advanced and then check the box to set TCP IP as the default protocol 48 CHAPTER 4 SETTING UP TCP IP FOR WINDOWS AND MACINTOSH e 11 12 13 TCP IP Properties Figure 24 Advanced Parameters of TCP IP Properties Click OK to close the TCP IP Properties dialog box Click OK to close the Network dialog box Restart Windows 98 or 95 to let these changes take effect TCP IP Setup Using Windows NT 4 0 Windows NT 4 0 provides TCP IP as part of its standard operating system If you have not already set up TCP IP do the following You will need your Windows NT 4 0 installation CD ROM From the Control Panel
46. 77 Name 77 IP Address and Subnet Mask 78 Local Domain Name 78 Enable DHCP Server 78 Enable NetBIOS Filtering 78 Configuring the LAN Parameters 79 Changing Data Call Parameters 79 Understanding Data Call Parameters 79 Minimum Call Duration 80 Disconnecting an Automatic Data Call 80 Disconnecting a Manual Data Call 80 Connect Disconnect Threshold for the Second B Channel 81 Configuring the Data Call Parameters 81 Changing Call Routing 82 Default Setting 82 Changing Call Routing 82 Changing Country Selection 83 Reserving DHCP Addresses 84 Selective Password Protection 84 Changing Your Password 84 Configuring ISDN Line Parameters 85 What is MSN 85 What is subaddressing 85 Locking and Unlocking the Configuration 86 Configuring the ISDN LAN Modem from a Remote Location 87 xi xii 7 SUPPLEMENTARY VOICE CALL SERVICES Supplementary Voice Services 89 Before You Begin 89 Call Waiting and Call Hold 89 Call Hold 89 How to Use Call Waiting 89 Disconnecting a Call on Hold 90 Calling Line Identification Restriction 91 Permanent Configuration 91 Malicious Call Identification MCID 91 PLACING RECEIVING AND DISCONNECTING CALLS Placing Calls 93 Placing a Call Automatically 93 Telephone Number Selection for Data Calls 93 Call Routing Among Service Providers 93 Placing a Call Manually 93 Placing a Call Manually to an Existing Service Provider 94 Placing a Call Manually to a Temporary Service Provider 94 Participating in a Tempor
47. CLUDING WARRANTIES TERMS OR CONDITIONS OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE SATISFACTORY QUALITY CORRESPONDENCE WITH DESCRIPTION AND NON INFRINGEMENT ALL OF WHICH ARE EXPRESSLY DISCLAIMED 3COM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE INSTALLATION MAINTENANCE OR USE OF ITS PRODUCTS 3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT THE ALLEGED DEFECT OR MALFUNCTION IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY CUSTOMER S OR ANY THIRD PERSON S MISUSE NEGLECT IMPROPER INSTALLATION OR TESTING UNAUTHORIZED ATTEMPTS TO OPEN REPAIR OR MODIFY THE PRODUCT OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE OR BY ACCIDENT FIRE LIGHTNING OTHER HAZARDS OR ACTS OF GOD LIMITATION OF LIABILITY TO THE FULL EXTENT ALLOWED BY LAW 3COM ALSO EXCLUDES FOR ITSELF AND ITS SUPPLIERS ANY LIABILITY WHETHER BASED IN CONTRACT OR TORT INCLUDING NEGLIGENCE FOR INCIDENTAL CONSEQUENTIAL INDIRECT SPECIAL OR PUNITIVE DAMAGES OF ANY KIND OR FOR LOSS OF REVENUE OR PROFITS LOSS OF BUSINESS LOSS OF INFORMATION OR DATA OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CONNECTION WITH THE SALE INSTALLATION MAINTENANCE USE PERFORMANCE FAILURE OR INTERRUPTION OF ITS PRODUCTS EVEN IF 3COM OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES AND LIMITS ITS LIABILITY TO REPAIR REPLACEMENT OR REF
48. E a El Back Forward Stop Refresh Home Search Favorites History Channels Fullscreen Mail Print Edit Address ES http 192 168 1 1 mainPage htm y Links 42 Configure Modem 43 Dial or Hang Up 42 Register Modem 42 Updates 42 User Guide e LAN Ethernet Parameters Name LANmodem O P Address fis2 fies ff fi Subnet Mask 255 255 255 224 NOTE If you change the IP Address and or the Subnet Mask of your LAN Modem the LAN Modem will reinitialize itself This will terminate all calls Also you may have to reconfigure the IP addresses of your workstations Local Domain Name Enable DHCP Server M Enable NetBIOS filtering I Submit Reset Form LAN Ethernet Parameters a E Intemet zone Figure 47 LAN Parameters Window Name Displays the name for the ISDN LAN Modem This name is used for DNS For example the name LANmodem is translated to its IP address 192 168 1 1 78 CHAPTER 6 ADVANCED CONFIGURATION IP Address and Subnet Mask The IP address is a unique address which identifies the ISDN LAN Modem on a network The default address 192 168 1 1 is a private IP address which will be translated automatically by the ISDN LAN Modem for Internet access You should leave the default unless you are certain that this value must be changed i gt The ISDN LAN Modem attempts to use its default IP address to communicate with the computer If communication cann
49. ED B1 B2 ISDN LED LAN STATUS ALERT LED remains lit ALERT LED continues to flash Upon power up both the ALERT and ISDN LEDs flash ALERT ISDN OK B1 and B2 LEDs alternately flash B channel LED s do not remain green or amber ISDN LED does not light LAN port status LED is off that is not illuminated An internal failure Self test failure or ISDN LAN Modem is in firmware download mode A previous firmware download was not completed successfully Firmware download process was aborted Problem with your computer or application software or incompatible local or toll telephone company Poor physical connection to the local telephone equipment Ethernet cable is not securely connected Ethernet card is not set up properly Notify your reseller or technical support that the ISDN LAN Modem has failed the self test Power cycle the ISDN LAN Modem If the ALERT LED continues to flash the ISDN LAN Modem has failed the self test Contact your network supplier If the ALERT LED is not flashing then the ISDN LAN Modem is now operating correctly Download the firmware Refer to the Readme file located at http www remoteaccess 3com com support do cs lanmodenm for firmware download instructions Do not remove power plug Wait until the LEDs stop flashing about 1 minute to allow the ISDN LAN modem to cancel the firmware download Once the LEDs stop flashing you may restart fir
50. FC 1974 a Multilink PPP RFC 1990 which combines two PPP B channel calls to create a virtual single 128 Kbps network connection Connectivity a ISDN Basic Rate interface Up to 25 10BASE T 10 Mbps Ethernet connections a Two analog voice ports a Preferred Provider support which allows simultaneous connections to two different ISPs Routing a P Routing a Dynamic or static IP addresses supplied by the ISP WAN side WAN access for up to 25 local workstations on the LAN 10BASE T Dynamic Host Control Protocol DHCP server functionality on the LAN which automatically assigns an IP address to a newly attached computer on an IP network a Domain Name Service DNS server functionality for the LAN which translates the common alphanumeric name of a device to the numeric IP address of a device a Network Address Translation NAT between LAN and WAN which allows multiple users on the LAN to share a WAN connection Note that individual email accounts may still be maintained at the ISP a Multiplexing traffic from several computers to the same remote destination 22 CHAPTER 1 INTRODUCTION Bandwidth Management Automatic call connection a Automatic disconnection of idle calls after a specified length of time Bandwidth on Demand using Bandwidth Allocation Control Protocol BACP Bandwidth Allocation Protocol BAP based on a specified threshold Dynamic bandwidth allocation DBA which allows you to
51. Jumps to LAN Modem manual calling WWW Page latest docs main page Jumps to the registration page Figure 57 ISDN LAN Modem Custom Internet Explorer Browser Custom Links The following custom buttons provide direct links to ISDN LAN Modem configuration and information Web sites a Configure Modem Click here to jump to the ISDN LAN Modem configuration main page a Dial Hang Up Click here to jump to the ISDN LAN Modem s Manual Calling page where you can connect to and disconnect from the service providers you configured Register Modem Click here to jump to the ISDN LAN Modem registration page Updates Click here to jump to the site where you will find the latest information on the ISDN LAN Modem such as the latest firmware version and user documentation 118 APPENDIX B USING THE CUSTOM WEB BROWSER m User Guide Click here to jump to the Internet location of the OfficeConnect ISDN LAN Modem User Guide Using Favorites Under the Favorites menu a subcategory labeled 3Com sites lists several helpful sites already bookmarked for you These include 3Com Corporate This takes you to the 3Com Corporate Web site a 3Com Remote Access This takes you to the 3Com Remote Access Web site 3Com Shopping This takes you to the 3Com Shopping Network a 3Com Small Business This takes you to the 3Com Small Business Networking Web site 3Com Support This takes you the 3Com Support Web site Installing the Custom In
52. Modem as shown in Figure 17 Figure 17 Power Cable Connection 2 Plug the other end of the power module into a surge protected standard wall outlet The indicator LEDs on the front panel flash momentarily as the unit undergoes a power up self test diagnostic This completes the ISDN LAN Modem installation If you do not have TCP IP installed and set up on your computer refer to Chapter 4 Setting Up TCPAP for Windows and Macintosh If you already have TCP IP installed and set up on your computer refer to Chapter 5 Configuring the ISDN LAN Modem Wall Mounting the ISDN LAN Modem There are two slots on the underside of the ISDN LAN Modem which are used for wall mounting You will need two suitable screws Ensure that the wall you are going to use is smooth flat dry and sturdy Make two screw holes which are 150 mm 5 9 in apart Insert the screws into the wall leaving their heads 3 mm 1 8 in clear of the wall surface Remove any connections to the ISDN LAN Modem and position the unit over the screw heads When the unit is in line gently push it onto the wall and move it downward to secure When making connections be careful not to push the ISDN LAN Modem up and off the wall p WARNING Only wall mount single units Do not wall mount stacked OfficeConnect units Using Rubber Feet and Stacking Clips 43 Using Rubber Feet and Stacking Clips Attach the feet to the marked areas at each corner of the un
53. OS is primarily used by Windows 98 95 and NT for local file and printer sharing note that NetBIOS may also be used on other operating systems This protocol can make spurious DNS requests which can inadvertently cause the LAN Modem to establish unwanted calls to your Service Provider and results in subsequent charges to your phone bill When this box is checked NetBIOS packets cannot initiate a call but they will be passed if the call is already established If you have no need to perform file or printer sharing over your ISDN connection you should enable NetBIOS filtering that is check the box Configuring the LAN Parameters gt Changing Data Call Parameters 79 To configure LAN parameters do the following From the ISDN LAN Modem main page click the SDN LAN Modem graphic In the IP Address field review the default and enter a different IP address if required In the Subnet Mask field review the default and enter a different subnet mask if required In the Local Domain Name field if desired enter a name you would like to use for your local domain This field is not required If you do not know what to enter leave it blank Check the Enable DHCP server box to enable DHCP or clear the box to disable it WARNING If you changed the IP address and or the subnet mask of your ISDN LAN Modem the ISDN LAN Modem will re initialize itself when you submit the changes by clicking Submit When the re initialization occurs all c
54. OfficeConnect 3 i ISDN LAN Modem User Guide http www 3com com Part u No 984 000026 2 Publis hed January 1999 3Com Corporation 5400 Bayfront Plaza Santa Clara California 95052 8145 Copyright O 3Com Technologies 1999 All rights reserved No part of this documentation may be reproduced in any form or by any means or used to make any derivative work such as translation transformation or adaptation without permission from 3Com Technologies 3Com Technologies reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Technologies to provide notification of such revision or change 3Com Technologies provides this documentation without warranty of any kind either implied or expressed including but not limited to the implied warranties of merchantability and fitness for a particular purpose 3Com may make improvements or changes in the product s and or the program s described in this documentation at any time UNITED STATES GOVERNMENT LEGENDS If you are a United States government agency then this documentation and the software described herein are provided to you subject to the following restricted rights For units of the Department of Defense Restricted Rights Legend Use duplication or disclosure by the Government is subject to restrictions as set forth in subparagraph c 1 ii for Restricted Rights in Technical Data and Comp
55. P IP Default E Connect via Ethernet Setup Configure Using DHCP Server IP Address lt will be supplied by server gt Subnet mask lt will be supplied by server gt Router address lt will be supplied by server gt Search domains Name server addr lt will be supplied by server gt Figure 30 TCP IP Dialog Box for Macintosh Computers 2 Select Ethernet or Ethernet built infrom the Connect via drop down list box 3 If this LAN uses dynamic IP addresses select Using DHCP Server from the Configure drop down list box If this LAN uses static IP addresses select Manually from the Configure drop down list box and then enter the IP address 52 CHAPTER 4 SETTING UP TCP IP FOR WINDOWS AND MACINTOSH TCP IP Setup Using If you are using Windows 3 11 a TCP IP stack is not provided as part of the Windows 3 11 operating system If you do not have a TCP IP stack you can use MS TCP which is provided on the 3Com Companion Programs CD ROM Setting Up TCP IP Using To set up MS_TCP do the following MS TCP 1 Install MS_TCP located on the 3Com Companion Programs CD ROM onto your hard drive 2 From the Program Manager click Network Program anager Te File Options Window Help Main StartUp Accessories Network Figure 31 Program Manager Group Box 3 From the Network group box click Network Setup Se e File Options Window Help 2 as Network Setup Mail
56. Routing Protocol and IP Address Translation Placing a Call to a Previously Defined Destination This section describes the call routing protocol used by the ISDN LAN Modem and explains how IP addresses are translated To illustrate how the ISDN LAN Modem routes outgoing data calls let us assume that you have set up the following types of service providers a A direct connection to an Internet Service Provider a A direct connection to a remote office LAN a A direct connection to a remote office LAN from which you can also access the Internet If all of those connection types are configured on the ISDN LAN Modem and are associated with your computer the following algorithm is performed for each of the following scenarios Call Routing While No Other Calls Are Connected If the ISDN LAN Modem has not established any calls to a remote destination and you want to access the Internet from your computer you simply launch your Web browser or whichever networking application you like When the ISDN LAN Modem receives the information packet requesting access to the WAN it must determine which connection type to use The ISDN LAN Modem looks at the destination Network ID which comprises the destination IP address and subnet mask associated with the packet If the Network ID of the packet matches the Network ID of the remote LAN with or without Internet access then the call is placed to the remote LAN If it does not match the Network ID o
57. SDN PRI is the other Each BRI consists of two 64 Kbps B channels and one 16 Kbps D channel for each ISDN line Bandwidth Allocation Control Protocol BACP and Bandwidth Allocation Protocol BAP are used in conjunction with the Multilink PPP feature When Multilink PPP is negotiated the BACP negotiates with the peer equipment to determine whether the peer supports BAP If the peer supports BAP and agrees to use BAP then the BAP negotiates the addition and removal of the second B channel with the peer equipment based on a user defined threshold A key advantage of BACP BAP is that it provides a higher probability of establishing a Multilink PPP call during high traffic conditions by providing a specific telephone number for the second B channel to call Challenge Handshake Authentication Protocol CHAP is one of two PPP authentication protocols supported by the ISDN LAN Modem PAP is the other An authentication protocol requests information to verify a valid user CHAP is a stronger authentication method because it uses encryption and may repeatedly request verification of the identity of the user any time after link establishment Compression is a method of reducing the size of data packets without losing any information The ISDN modem automatically compresses data for PPP calls to improve data transfer times using a compression method called Hi fn LZS The signaling channel on an ISDN line used to carry messages between the ISDN LAN Modem
58. SP parameters in the form below and click the Continue button ISPName Telephone Number PA User ID Password A O DNS Address Leave blank if automatically assigned by Service Provider Bandwidth Allocation Use one B channel Add second B channel as required Use two B channels B Channel Rate 64Kb s 56Kh s Reset Form Abort zi E Done m 8 Intemet zone Figure 39 ISP Wizard Window If you do not want to use the ISP Wizard click Abort The ISDN LAN Modem configuration main page appears Refer to Setting Up Additional Service Providers for instructions on configuring your ISP connection manually In the Name field enter the name of your ISP In the Telephone Number field enter the telephone number of your ISP If the telephone number contains a subaddress enter the telephone number followed by an asterisk and then the subaddress number For example type 020 555 1212 3 If you want to enter another telephone number to connect to your ISP or change these settings refer to Editing Service Provider Profiles after you have completed this typical installation procedure In the User ID and Password fields enter your user ID and password for your ISP account If your ISP requires a DNS address enter it in the DNS Address es field Specify how you want the bandwidth allocated for this connection a Use one B channel When selected one B channel is used to connect to
59. Stop Refresh Home Search Favorites History Channels Fullscreen Mail Print Edit real a http 192 168 1 1 mainPage htm Links 42 Configure Modem 42 Dial or Hang Up 42 Register Modem 42 Updates g User Guide Euro ISDN Service Provider Selection Service Providers New Internet Service Provider Select Service Provider Selection This section allows you to create a new Service Provider profile either an ISP or a Private Network or to access existing Service Provider parameters You can configure a total of four Service Provider profiles xl E Done 8 Intemet zone Figure 43 ISP Service Provider Selection Window 3 Click Select The Internet Service Provider Parameters window appears Internet Service Provider GSP Parameters Name Telephone Number o Alternate y Number Security User ID Password Domain Name Service DNS IP Address es Leave blank if automatically assigned by your Service Provider rima J J Secondary LIL IC IL optional Bandwidth Allocation Use one B channel Add second B channel as required Use two B channels Miscellaneous B Channel Rate 64Kb s C 56Kb s Use Data Compression Yes No Use Network Address Translation NAT Yes C No WAN Link IP Address if Numbered J J WAN Link Subnet mask 255 Allow Automatic Call Initiation Yes C No Unsolicited incoming packet processing Gf NAT
60. Table 3 list conventions that are used throughout this guide Table 2 Notice Icons Icon Notice Type Description gt Information note Information that describes important features or instructions Caution Warning Information that alerts you to potential loss of data or potential damage to an application system or device Information that alerts you to potential personal injury Table 3 Text Conventions Convention Description Screen displays This typeface represents information as it appears on the screen Commands The word command means that you must enter the command exactly as shown and then press Return or Enter Commands appear in bold Example To remove the IP address enter the following command SETDefault 0 IP NETaddr 0 0 0 0 The words enter and type When you see the word enter in this guide you must type something and then press Return or Enter Do not press Return or Enter when an instruction simply says type Keyboard key names If you must press two or more keys simultaneously the key names are linked with a plus sign Example Press Ctrl Alt Del Words in italics Italics are used to a Emphasize a point Denote a new term at the place where it is defined in the text a Identify menu names menu commands and software button names Examples From the Help menu select Contents Click OK Year 2000 Compliance T
61. UK users only with 3C891 LAN Modem a OfficeConnect ISDN LAN Modem Getting Started Guide Rubber feet and stacking clips Before You Install the ISDN LAN Modem To install configure and use the ISDN LAN Modem successfully you must have the following Correct ISDN service installed at your location with an available RJ 45 outlet a A JavaScript enabled and frames capable Web browser A Web browser is provided on the 3Com Companion Programs CD ROM You may want to use the browser provided because it is customized to the ISDN LAN Modem making it easier to use For more information refer to Appendix B If you use a different Web browser make sure that it supports frames Netscape 2 1 and later and Internet Explorer 3 0 and later both support frames If you already have a version of the Internet Explorer Web browser installed and would like to install a later version you should first uninstall the previous version Also while installing the later customized version you may be asked to replace the older files It is recommended that you do so a TCP IP software TCP IP is provided as part of the Windows 98 95 NT and Macintosh System 7 6 and later operating systems For Windows 3 11 users TCP IP software is provided on the 3Com Companion Programs CD ROM A personal computer Refer to the section IBM PC or Compatible Requirements for an IBM or IBM compatible PC Refer to the section Apple Macintosh Requirements for
62. UND OF THE PURCHASE PRICE PAID AT 3COM S OPTION THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE DISCLAIMER Some countries states or provinces do not allow the exclusion or limitation of implied warranties or the limitation of incidental or consequential damages for certain products supplied to consumers or the limitation of liability for personal injury so the above limitations and exclusions may be limited in their application to you When the implied warranties are not allowed to be excluded in their entirety they will be limited to the duration of the applicable written warranty This warranty gives you specific legal rights which may vary depending on local law GOVERNING LAW This Limited Warranty shall be governed by the laws of the State of California U S A excluding its conflicts of laws principles and excluding the United Nations Convention on Contracts for the International Sale of Goods 3Com Corporation 5400 Bayfront Plaza Santa Clara CA 95054 408 326 5000 Agency Approvals This product ostensibly complies with the electro magnetic compatibility EMC requirements of EN 55022 Class A and EN 50082 susceptibility However to ensure compliance with Class B of EN55022 the following prerequisites should be observed The 4 LAN ports must have a CAT5 cable or better attached Unscreened ISDN cable The phone ports 1 and 2 must be
63. a call because of inactivity The inactivity timer runs simultaneously with the minimum call duration For example if the minimum call duration is set to 2 minutes and the inactivity timer is set to 30 seconds the call will be connected for at least 2 minutes even if there has been no activity for 30 seconds or more To prevent a data call from being disconnected because of inactivity enter O note that you must then manually disconnect the call via the Manual Calling screen The default is 30 seconds Disconnecting a Manual Data Call A manual call is established using the Manual Calling option from the LAN Modem s main page You can define the amount of time the LAN Modem should wait before disconnecting this type of data call because of inactivity This inactivity timer is activated once the minimum call duration is satisfied and no further activity is detected For example if the minimum call duration is set to 2 minutes and the inactivity timer is set to 15 minutes the call will be connected for at least 15 minutes To prevent a manual call from being disconnected because of inactivity enter O The default is 15 minutes Configuring the Data Call Parameters uu bb WN Changing Data Call Parameters 81 Connect Disconnect Threshold for the Second B Channel If you specified that you want to use the second B channel only when needed indicate the percentage of bandwidth utilization on the first B channel which must be reached before
64. aling into must also have compression enabled and also support the same type of compression hi fn LZS otherwise compression negotiation will not be successful 106 CHAPTER 9 TROUBLESHOOTING AND MAINTENANCE Finding More Information For more information about the ISDN LAN Modem such as frequently asked questions and specific technical notes go to the following URL http www remoteaccess 3com com support docs lanmodenandhenbookmark this site for quick and easy access If you are using the ISDN LAN Modem custom browser click Updates from the menu bar Contacting Technical Support For technical support refer to the technical support card that was included with your ISDN LAN Modem for the telephone number for your location Downloading Firmware to Your ISDN LAN Modem Your ISDN LAN Modem has been designed to be user upgradable Firmware upgrades and instructions will be available at http www remoteaccess 3com com support docs lanmodem Resetting the ISDN LAN Modem gt Resetting the ISDN Modem Using a Telephone There are two types of resets you can perform a normal reset and a factory reset m A normal reset resets the ISDN LAN Modem without affecting any of the configuration that has already been done Any active calls however will be terminated A normal reset can also be performed using the reset button located on the back of the ISDN LAN Modem a A factory reset restores the ISDN LAN Modem
65. alls are terminated and you may have to reconfigure the IP addresses on the computers on the LAN 6 In the Enable NetBIOS filtering field if desired check the box to enable filtering 7 Click Submit If you want to password protect the configuration profile of the ISDN LAN Modem refer to Locking and Unlocking the Configuration Changing Data Call Parameters Understanding Data Call Parameters This section describes how to change the default settings for the data call parameters The data call parameters consist of time out values and a threshold setting for bandwidth on demand The timeout values are a useful means of using bandwidth efficiently and keeping telephone usage and Internet access costs down If there is no activity on a call for an amount of time you specify the call is disconnected The threshold parameters also provide a useful means of using bandwidth efficiently by automatically adding a second B channel only when there is enough traffic to justify the extra bandwidth and by automatically removing the second B channel when one B channel is sufficient The Data Call Parameters window shown in Figure 48 contains the following fields 80 CHAPTER 6 ADVANCED CONFIGURATION A MainPoge Microsoft Intemet Explorer provided by 3Com Corporation E File Edt View Go Favorites Help gt A a aa R od 3 Back Fornverd Stop Refresh Home Search Favorites History Channels Fullscreen
66. ansmission path A LAN modem is a hybrid between a modem that combines the dial up capabilities of a modem with an Ethernet hub This eliminates the computer COM port speed bottleneck the LAN runs at 10 Mbps while providing local networking between the attached computers on the LAN Even with this sophisticated functionality a LAN modem is easy to install and use making it ideal for small networks The Integrated Services Digital Network ISDN provides a digital telephone service which allows both data and voice communication over the same telephone line and at significantly faster speeds than the traditional Plain Old Telephone Service POTS or analog service There are two types of lines which provide access to ISDN Basic Rate Interface BRI and Primary Rate Interface PRI The ISDN LAN Modem supports a BRI interface OfficeConnect ISDN LAN Modem Public telephone network ISDN BRI line Figure 52 ISDN BRI Line Each BRI telephone line consists of two 64 Kbps bearer or B channels and one 16 Kbps D channel for each ISDN line The D channel is the signaling channel it carries messages between the ISDN LAN Modem and your telephone company s ISDN switch Note that while the ISDN standard is to have 64 Kbps B channels some telephone companies or the equipment you are connecting to may use 56 Kbps channels OfficeConnect ISDN LAN Modem 64 Kbps B Channel Public
67. ary Call 95 Placing Multilink PPP Calls 95 Receiving Calls 95 Receiving Data Calls 95 Distinctive Ringing 96 Disconnecting Data Calls 96 Disconnecting Data Calls Manually 96 Disconnecting Calls Automatically Using Timers 97 Minimum Call Duration 97 Idle Timeout 97 Bandwidth on Demand Parameters 97 Connect Disconnect threshold for the second B channel 97 TROUBLESHOOTING AND MAINTENANCE Checking the Basics 99 Monitoring LEDs 100 Monitoring the ALERT LED 100 Monitoring the ISDN LED 100 Monitoring the B Channel LEDs 100 Monitoring the LAN Port Status LEDs 100 Troubleshooting Problems Indicated by LEDs 101 Evaluating Symptoms and Solutions 102 Finding More Information 106 Contacting Technical Support 106 Downloading Firmware to Your ISDN LAN Modem 106 Resetting the ISDN LAN Modem 106 Resetting the ISDN Modem Using a Telephone 106 OQ gt Reviewing Statistics 107 Understanding System Statistics 107 Understanding ISDN Information 108 Understanding Current Call Information 108 Understanding Last Call Information 109 Understanding Service Provider Information 110 NETWORKING PRIMER USING THE CUSTOM WEB BROWSER ISDN LAN MODEM FACTORY DEFAULTS ISDN LAN MODEM SPECIFICATIONS Year 2000 Compliance 121 Ring Cadences 122 Tone Definitions 123 GLOSSARY LIFETIME LIMITED WARRANTY Agency Approvals 130 INDEX xiii xiv ABOUT THIS GUIDE About This Guide provides an overview of this guide describ
68. ask and domain name of the private network You must enter an IP address and subnet mask Under Miscellaneous if you want to be able to access the Internet from this private network select the Yes I want to access the Internet radio button Otherwise select the No radio button Under Miscellaneous specify the B channel rate Leave the B channel rate set to 64 Kbps unless your telephone company and the locations to which you will be connecting require 56 Kbps Under Miscellaneous indicate whether or not you would like to use data compression when transferring data by selecting the appropriate radio button 13 14 15 16 17 18 19 gt Associating Service Providers with Workstations on the LAN Under Miscellaneous leave the default NAT enabled unless you are certain you want to disable it With NAT enabled the ISDN LAN Modem translates IP addresses between the computers on the LAN and the ISP allowing all LAN users access to a single ISP Only disable NAT when static IP addresses are provided by your ISP for users on the LAN Under Miscellaneous if the private network to which you want to connect does not assign a dynamic IP address and wants you to use a static IP address enter the IP address and the subnet mask in the WAN link fields Otherwise leave these fields empty For Allow Automatic Call Initiation leave the default setting which is Yes If you select No you will have to manually launch a call t
69. at the ISDN LAN Modem always calls the first configured ISP If you have configured a second ISP and want to use that one instead from the ISDN LAN Modems configuration home page go to Workstation Parameters select your computer and then associate only the ISP that you want to use Understanding Multilink PPP and BACP BAP What is Multilink PPP Multilink PPP is a protocol which combines multiple point to point protocol PPP connections to form a single high bandwidth channel With a BRI line Multilink PPP combines the two 56 Kbps or 64 Kbps ISDN B channels creating a virtual single connection of up to 112 Kbps or 128 Kbps What is BACP BAP BACP BAP is used in conjunction with the Multilink PPP feature and is transparent to the user that is it will not be visible to you as it occurs in the background You need not configure this functionality When Multilink PPP is negotiated the Bandwidth Allocation Control Protocol BACP negotiates with the peer equipment to determine whether the peer supports BAP If the peer supports BAP Understanding Dynamic Bandwidth Allocation 31 and agrees to use BAP then the Bandwidth Allocation Protocol BAP negotiates the addition and removal of the second B channel with the peer equipment based on a user defined threshold A key advantage of BACP BAP is that it provides a higher probability of establishing a Multilink PPP call during high traffic conditions by providing a specific telephone num
70. ation that has not been previously defined as long as the remote location provides an IP address dynamically during call setup To place a call manually to a service provider that is already configured do the following The existing service provider must be associated with your workstation in order for you to place a manual call to it By default all service providers are associated with all workstations If you are unsure click Workstations from the main page and then select your workstation Make sure the service provider you want to call is associated with your workstation From the ISDN LAN Modem home page click the Manual Calling button The Manual Call Control window appears In the table locate the name of the service provider to which you want to connect and then verify that the call is not already connected to that destination by looking under the Status of Call column Click Place Call A message indicates that the call is being placed A B channel LED on the ISDN LAN Modem front panel illuminates green when a connection is established Once connected you are ready to run any desired application appropriate for that location such as FTP to transfer files or you may enter a different URL in your Web browser to access the Internet To place a call manually to a service provider that has not been previously configured do the following Note that for this type of manual call the service provider must supply a dynamic IP addres
71. ave to manually configure the following parameters for each computer on the LAN IP address subnet mask DNS address and default gateway Network Address Translation also known as IP address sharing allows multiple users to share a single connection such as an Internet connection For example with the ISDN LAN Modem when users on the LAN launch their Web browser for Internet access their computer s IP address is translated into the IP address provided by the ISP for access You will probably not want to use NAT If your LAN network is static that is an IP address is assigned to your computer by your MIS department or ISP and manually configured Some networks require an IP address to be assigned to a WAN in addition to the LAN s If a WAN has an IP address assigned to it it is considered to be a numbered link If there is not an IP address assigned to a WAN it is considered to be an unnumbered link Subaddressing allows you to assign specific telephone numbers to the devices attached to the analog ports by arbitrarily assigning extensions to your ISDN telephone number to route calls to different devices Multiple Subscriber Numbering is a service offered by some telephone companies that allows you to have multiple telephone numbers assigned to your ISDN line This allows you to dedicate a telephone number to each device attached to the ISDN LAN modem The performance of all linked devices must be considered to determine end to end
72. b browser When the handset of a There may be two active calls to If there are two independent data calls connected go telephone attached to the different locations thus using to Manual calling to disconnect one of the active calls ISDN LAN Modem is lifted a both B channels and leaving no dial tone cannot be heard bandwidth for the voice call Bandwidth allocation for this Either go to Manual calling and disconnect the current service provider may be set to call or go to service providers and change bandwidth Always use 2 B channels and a allocation to either Add second B channel as required call is currently up or Use one B channel The ISDN line cable power cable Check all cables and connectors to ensure that they are and or phone cable may not be inserted securely firmly connected Calls from the analog port may From the Call Routing window check the Phone Port 1 be blocked and Phone Port 2 boxes which are used for voice call routing Make sure that the correct Phone Port box for that port is checked A computer on the LAN was The ISDN LAN Modem has not From another computer attached to the ISDN LAN replaced with another one and released the IP address for the Modem go to the LAN Modem s main configuration now the newly added previous computer and therefore page Click Workstations Select the name of computer computer cannot will not assign a new one you removed and then click Select Click Release communicate with the ISDN because
73. ber Figure 56 Subnet Mask IP addresses for public networks must be unique and provided by the Network Information Center NIC Because of the increasing popularity of the Internet the NIC is running out of permanent IP addresses It is therefore becoming more common to use dynamic IP addresses which are assigned temporarily and then reused instead of static IP addresses which are permanent For example when you access the Internet your ISP has a pool of IP addresses it uses to provide temporary connections to multiple users Once you disconnect from the Internet the IP address you were using is placed back in the pool for use by another user If your LAN will not connect to the public Internet you can set up your own unique that is private IP address numbering IP addresses for private networks such as an office LAN must also be unique but only within that LAN What is DHCP What is DNS What is NAT What are numbered and unnumbered links What is Subaddressing What is Multiple Subscriber Numbering MSN How is overall throughput determined What is a network 115 Dynamic Host Configuration Protocol automatically assigns a unique temporary IP address to a newly attached computer on an IP network Domain Name Service translates the common alphabetic name into the numeric IP address For example floyds_PC is translated to 193 6 14 2 If you do not use the DHCP functionality of the ISDN LAN Modem you will h
74. ber for the second B channel to call Multilink PPP Configuration Options When configuring Multilink PPP you can choose one of the following options from the ISDN LAN Modem s Service Provider Parameters window Use One B Channel When this option is configured only one B channel is used to connect to this service provider Multilink PPP is thereby disabled and BACP BAP is therefore not used a Use Two B Channels When this option is configured both B channels are always used to connect to this service provider regardless of the amount of traffic over each B channel Note that when this option is selected the DBA feature does not work because both B channels are being used To use both DBA and Multilink PPP select the option Add Second B Channel as Required a Add Second B Channel As Required When this option is configured referred to as bandwidth on demand only one B channel is used to connect to this service provider and the second B channel is automatically added only when the amount of traffic on the first B channel reaches a threshold you define In order for you to use Multilink PPP the destination you are calling must also support Multilink PPP For example if you are trying to dial in to the Internet your ISP must also support Multilink PPP in order to successfully place a Multilink PPP call If you attempt to place a Multilink PPP call and the location you are calling does not support Multilink PPP then a singl
75. ber of octets bytes received by the ISDN LAN Modem Indicates the number of octets bytes transmitted by the ISDN LAN Modem For the last incoming voice or data call indicates the telephone number of the calling party For the last outgoing voice call indicates the port from which the call was placed For outgoing data calls no information is provided For the last outgoing data call indicates the telephone number dialed to reach the service provider for the current call For the last incoming voice or data call indicates the telephone number dialed from the far end For outgoing voice calls no information is provided Indicates why the last call was disconnected For example idle timer expired or manual disconnect Indicates how the call was placed and which workstation placed the call Depending on how the call was placed you should see something similar to the following Manual dial by Workstation A DNS query from Workstation A for http www xxx xxx If the call was automatically launched and the workstation does not know the IP address Packet from Workstation A to IP address xxxx If the call was automatically launched and the workstation knows the IP address The following Service Provider information is provided after a call has ended Table 15 Service Provider Information Description Service Provider Information Description Number of successful connections Number of
76. ce materials 3Com makes no warranty or representation that its software products will meet Customer s requirements or work in combination with any hardware or applications software products provided by third parties that the operation of the software products will be uninterrupted or error free or that all defects in the software products will be corrected For any third party products listed in the 3Com software product documentation or specifications as being compatible 3Com will make reasonable efforts to provide compatibility except where the non compatibility is caused by a bug or defect in the third party s product or from use of the software product not in accordance with 3Com s published specifications or user manual YEAR 2000 WARRANTY In addition to the Hardware Warranty and Software Warranty stated above 3Com warrants that each product sold or licensed to Customer on and after January 1 1998 that is date sensitive will continue performing properly with regard to such date data on and after January 1 2000 provided that all other products used by Customer in connection or combination with the 3Com product including hardware software and firmware accurately exchange date data with the 3Com product with the exception of those products identified at 3Com s Web site http www 3com com products yr2000 html as not meeting this standard If it appears that any product that is stated to meet this standard does not perform properly wi
77. ch PC to workgroup Check applications to see if any are running in the background Make sure that the timeout value is not set to zero Check the timeouts configured for the ISDN LAN Modem as explained in Changing Data Call Parameters in Chapter 6 A Multilink PPP call cannot be Multilink PPP may not be Refer to Editing Service Provider Profiles in placed Only one B channel configured properly Chapter 6 for details connects There may not be enough traffic If you configured bandwidth allocation for this service to reach the threshold for adding provider to add the second B channel as needed there the second B channel may not be enough traffic to reach the threshold defined Refer to Changing Data Call Parameters in Chapter 6 for the threshold value and instructions on how to change this value if desired May be an incompatibility with Try reconnecting your call during off peak hours If you the router into which you are are still unable to establish a Multilink PPP call contact dialing Some remote routers split your ISP to confirm that they support this feature the two B channels of a Multilink PPP call between different routing devices preventing the channels from being linked A voice or data call may already Place the Multilink PPP call when both B channels are be connected leaving only one available B channel available Although only one data call is The connected call may be Check the bandwidth all
78. complying with the relevant interface requirements to the ports on this unit m Disconnect the power adapter before moving the unit m Retain this user s guide for later use and pass it on in the event of change of ownership of the unit m Protect the unit from sudden transient increases and decreases in electrical power by fitting an in line surge suppressor or uninteruptable power supply Products manufactured by us are safe and without risk provided they are installed used and maintained in good working order in accordance with our instructions and recommendations m If any of the following conditions occur isolate the electricity supply and refer to your 3Com reseller a f the case or cover is not correctly fitted or if it is damaged If the unit begins to make an odd noise smell or smoke a If the unit shows signs of a distinct change in performance m Never install telephone wires during a lightning storm or install telephone connection sockets in wet locations unless the socket is specifically designed for wet locations m Do not touch uninstalled telephone wires or terminals unless the telephone line has been disconnected at the network interface Always exercise caution when installing or modifying telephone lines m Donotuse a telephone which is connected to the unit to report a gas leak in the vicinity of the leak m Do not spill food or liquids on the unit If the unit gets wet isolate the electrical supply and c
79. configuration to the factory default settings listed in Appendix C All previously configured settings are cleared and current calls are terminated To reset the ISDN LAN Modem do the following From the ISDN LAN Modem home page select Maintenance Select the type of reset you would like to perform normal or factory If your computer cannot communicate with the ISDN LAN Modem and therefore you cannot get to the ISDN LAN Modem s home page you can restore the ISDN LAN Modem to the factory defaults using a telephone connected to one of the phone ports Once you ve connected an analog telephone to one of the ISDN LAN Modem s phone ports do the following Disconnect the ISDN cable from the ISDN LAN Modem Lift the handset of the telephone You may hear a fast busy tone Press the following keys 3266 The ISDN LAN Modem reinitializes itself Wait at least 10 seconds to ensure initialization is complete and then go on to step 4 Reviewing Statistics 107 4 Reconnect the ISDN cable 5 Restart your computer 6 Launch your Web browser The ISDN LAN Modem begins its initial setup sequence Reviewing Statistics gt Understanding System Statistics Various statistics about LAN and WAN parameters are stored and available for review To view statistics do the following From the ISDN LAN Modem s home page select Statistics Select the type of statistics you would like to review You can view the followi
80. d There are three main types of Ethernet networks 10BASE T 1OBASE 2 and 10BASE 5 The ISDN LAN Modem supports four 10BASE T connections A 10BASE T Ethernet network is used in small networks with only a few dozen devices closely located The physical connection for a 10BASE T Ethernet network is over a twisted pair cable The connector used for 10BASE T looks similar to the connector used for your telephone A 10BASE 5 Ethernet network is used in large networks with many devices where transmissions occur over distant geographic areas A 10BASE 2 Thin Ethernet network is used in smaller networks with all devices being relatively close together 10 Mbps Ethernet LAN Figure 51 Example of a LAN A Wide Area Network is the result of the connection of two or more LANs typically using dial up telephone services via a modem and usually over far geographic distances 112 APPENDIX A NETWORKING PRIMER How does a LAN connect to a WAN What is a LAN modem What is ISDN You can connect a LAN to a WAN through a number of devices such as a router or a bridge that can place a call to the remote LAN using a dial up telephone service such as ISDN Routers and bridges are devices that link networks A bridge sends every bit of information across the WAN while a router is considered a more sophisticated device because of its ability to route only the desired bits of information across the WAN while checking the integrity of the data and tr
81. d if not already in use Disconnect Delay This field defines the length of time the ISDN LAN Modem should wait before removing the second B channel By default the length of time is 20 seconds Therefore this default in combination with the Connect Disconnect Threshold default means that if throughput falls below 60 for 20 seconds a B channel is removed 98 CHAPTER 8 PLACING RECEIVING AND DISCONNECTING CALLS tor AN TROUBLESHOOTING AND MAINTENANCE This chapter explains how to isolate and solve problems encountered with the ISDN LAN Modem Problems may stem from incorrect option settings or improper installation This chapter covers the following main topics Checking the basics Monitoring the LEDs Evaluating symptoms and solutions Finding more information Contacting technical support Downloading firmware Resetting the ISDN LAN Modem Reviewing statistics CAUTION There are no user serviceable parts inside your ISDN LAN Modem Unauthorized opening of the unit will void the warranty Checking the Basics Before you monitor the LEDs or refer to the section on symptoms and solutions check the following Verify that the cables are not physically damaged If damage is apparent replace the cable Verify that you have a proper 10BASE T Ethernet cable 8 pin to 8 pin Verify that the power cord is connected to the ISDN LAN Modem and an electrical outlet Verify that the ISDN cab
82. d be chosen in the Type of Dial Up Server list box For Windows 98 users PPP Internet Windows NT Server Windows 98 should be chosen in the Type of Dial Up Server list box Under Advanced Options uncheck all boxes Choose the TCP IP check box for Allowed Network Protocols Uncheck the boxes for NetBEUI and IPX SPX Compatible Click TCP IP Settings The TCP IP Settings window opens Click Specify an IP address and enter an IP address for your computer Enter 192 168 2 1 if you are not sure Leave the other options for this window at their default settings including the radio button for Server assigned name server addresses Click OK to close the TCP IP Settings window CHAPTER 6 ADVANCED CONFIGURATION 15 16 17 18 19 20 21 Click OK to close the Server Types window Click OK to close your connection window Double click your new connection icon created via Dial Up Networking The Connect To window will open You may choose to leave the Username and Password fields blank at this time Click Connect Your local computer will dial and establish a connection with your remote ISDN LAN Modem Once your call has been established launch a Web browser on your local computer The Web browser attempts to load its default Start Page Click Stop to cancel this procedure Enter the following address in your Web browser s address bar http 192 168 1 1 mainpage htmto go to the remote ISDN LAN Modem s main confi
83. ders a Editing service provider profiles a Associating service providers with workstations a Configuring LAN parameters a Changing data call parameters Changing call routing Changing country selection a Reserving DHCP addresses a Changing your password a Configuring ISDN line parameters a Locking the configuration The configuration windows shown in this chapter may differ slightly from that displayed on your computer Before you Begin Before you begin advanced configuration access the ISDN LAN Modem s WebWizard To access the WebWizard also referred to as the ISDN LAN Modem main configuration page do the following If you are using the ISDN LAN Modem custom Web browser click Configure Modem to configure additional parameters If you are not using the ISDN LAN Modem Web browser enter http 3Com 0C LANmodem mainpage 68 CHAPTER 6 ADVANCED CONFIGURATION Setting Up Additional Service Providers ISP versus Private Network A service provider is a location outside of your LAN that you would like to access from your LAN such as an ISP for access to the Internet or a private network such as a remote office LAN You can define up to four service providers that is remote destinations on the ISDN LAN Modem This section describes how to do the following a Differentiate between an ISP and private network Set up a connection to an ISP Set up a connection to a private network a Associate computers
84. derside of your ISDN LAN Modem to stabilize your ISDN LAN Modem and prevent sliding Use the four clips to stack OfficeConnect units together You can stack up to four units Stack small units above large units 1 Place your existing unit on a flat surface Your clips fit in these positions on the side of the unit 2 Position a clip over one of these holes and push it until it clicks into place Repeat this for the other clip position on the same side Large unit Use these 3 Keeping the front of the units aligned holes rest the bottom of the new unit on the clips spikes Push the clips firmly into the new unit until they click into place Figure 18 Using Stacking Clips 44 CHAPTER 3 HARDWARE DESCRIPTION AND INSTALLATION to SETTING 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 computer must have a TCP IP stack in order to use the ISDN LAN Modem If you already have TCP IP installed and set up on your computer then go on to Chapter 5 These instructions vary depending upon which operating system you are using Refer to the appropriate section TCP IP Setup Using Windows 98 and Windows 95 a TCP IP Setup Using Windows NT 4 0 a TCP IP Setup Using Mac OS 7 6 or later a TCP IP Setup Using Windows 3 11 TCP IP Setup Using Windows 98 and Windows 95 gt TCP IP is provided as part of the s
85. e B channel PPP connection is established Understanding Dynamic Bandwidth Allocation Dynamic Bandwidth Allocation is used in conjunction with Multilink PPP on demand to use DBA you should choose Add Second B Channel As Required when you configure Bandwidth Allocation The Dynamic Bandwidth Allocation feature allows you to automatically and temporarily remove one of the B channels and use it either to place or receive a call voice or data without disturbing the original call The only effect on the original call is that it is reduced from a Multilink PPP call to the speed of one B channel Once the interrupting call ends that B channel is automatically returned to the Multilink PPP call Although throughput is reduced while the interrupting call is active the reliability of the Multilink PPP call is maintained Understanding VPNs and PPTP Virtual private networks VPN are private secure networks created in public networks such as the Internet A VPN is essentially a secure private tunnel within the Internet Since VPN calls are placed through a local ISP they eliminate long distance charges that would occur from directly dialing to a remote private network 32 CHAPTER 2 ISDN LAN MODEM FUNCTIONALITY DESCRIPTION Setting Up the Server Side of the Tunnel Setting Up the Client Side of the Tunnel One of the protocols which enables a VPN to be created is PPTP The PPTP protocol allows for multiple workstations to establ
86. e l unit occorre rimuovere l adattatore dall unit stessa o dalla presa di corrente m Collegare alle porte dell unit solamente app Le specifiche riguardanti la sicurezza delle po arecchi conformi ai requisiti della relativa interfaccia rte sono le seguenti Porte contrassegnate dalle targhette ISDN TNV TNV Telecoms Network Voltage un circuito che in normali condizioni di esercizio trasmette segnali di telecomunicazione Porte contrassegnate dalle targhette LAN e Phone SELV SELV Safety Extra Low Voltage un circuito secondario ideato e protetto un unico guasto la tensione tra due part 42 2 V picco o 60 V CC m All interno dell unit non vi sono fusibili sosti essere effettuata dall utente Se si verifica un seguendo le istruzioni per la risoluzione dei p n modo tale che in condizioni normali e in caso di i accessibili qualsiasi non superi il valore di sicurezza tuibili dall utente o parti la cui manutenzione pu problema che non si in grado di risolvere roblemi riportate nel presente manuale contattare il rivenditore 3Com presso il quale si acquistata l unit m Sele unit sono impilabili impilare solamente unit simili AVVERTENZA porte dati RJ45 per doppino intrecciato Si tratta di prese dati RJ45 schermate e non possono essere utilizzate come prese telefoniche Collegare solamente connettori dati RJ45 a queste porte Additional Safety Information m Only connect apparatus
87. ect the device you want to access remotely and then click Close 7 After the appropriate files are copied to your PC you will see TCP IP Protocol listed in the Network Protocols group box as shown in Figure 28 50 CHAPTER 4 SETTING UP TCP IP FOR WINDOWS AND MACINTOSH E TCP IP Protocol Figure 28 Network Protocols Group Box 8 Click Close The Microsoft TCP IP Properties window appears as shown in Figure 29 Microsoft TCP IP Properties 1 3Com Etherlink Ill Adapter Figure 29 Microsoft TCP IP Properties Window 9 From the Adapter drop down list box select the Ethernet card that is connected to the ISDN LAN Modem 10 If this LAN uses dynamic IP addresses select Obtain an IP address from a DHCP server If this LAN uses static IP addresses enter the IP address and subnet mask 11 Click OK 12 Click Yes to restart your PC and allow the changes to take effect TCP IP Setup Using Mac OS 7 6 or later 51 TCP IP Setup Using If you are using Macintosh operating system version 7 6 or later Open Transport Mac OS 7 6 or later OT PPP is provided and installed by default If you did not install OT PPP when you installed your system software perform a custom installation of your system software and install OT PPP version 1 1 or later To set up TCP IP for Mac do the following 1 From the Apple menu select Control Panels and then select TCP IP The TCP IP dialog box appears a TC
88. emes mans gt online service OfficeConnect ISDN LAN Modem A AAA Public telephone DIS A network ISDN BRI line k Figure 1 Local Networking with Access to the Internet 20 CHAPTER 1 INTRODUCTION Local Networking with Users can share access to a remote office LAN while continuing to network locally Access to a Remote Office Remote office LAN OfficeConnect ISDN LAN Modem Public telephone network ISDN BRI line Figure 2 Local Networking with Access to a Remote Office Local Networking with Users can share access to a remote office and the Internet while continuing to Access to the Internet network locally and a Remote Office Internet Intranet or online service Remote office LAN OfficeConnect ISDN LAN Modem Public telephone network ISDN BRI line Figure 3 Local Networking with Access to a Remote Office and the Internet Features 21 Features Ease of Installation and Use a Web based point and click user interface for configuration and online help a Automatic configuration verification with Internet connection through your Internet Service Provider ISP a Firmware updates user guides and technical notes available on the Web High Performance a Hi fn LZS compression which conforms to these IETF RFCs The PPP Compression Control Protocol RFC 1962 and PPP Stacker LZS Compression Protocol R
89. entsprechen und darf die Sicherheitsbestimmungen des Produkts siehe den entsprechenden Abschnitt am Ende dieses Handbuchs nicht verletzen m Trennen Sie den Netzadapter von der Stromversorgung bevor Sie die Einheit bewegen Die Einheit kann nur von der Stromversorgung getrennt werden indem Sie die Verbindung des Netzadapters entweder von Einheit oder der Stromquelle trennen m Schlie en Sie nur Ger te an den Schnittstellen dieser Einheit an die den Interface Voraussetzungen entsprechen Die Sicherheitsmerkmale der Schnittstellen dieses Ger ts sind m Schnittstellen mit der Bezeichnung ISDN TNV TNV Telecoms Network Voltage ist ein Schaltkreis auf dem unter normalen Betriebsbedingungen Telekommunikationssignale bertragen werden a Schnittstellen mit der Bezeichnung LAN und Phone SELV SELV Safety Extra Low Voltage ist ein sekund rer Schaltkreis der unter normalen und Single Fault Bedingungen so eingerichtet ist daB die Spannung zwischen zwei zug nglichen Bauteilen einen Sicherheitswert nicht bersteigt 42 2 V Spitzenspannung bzw 60 V Gleichspannung m Die Einheit enth lt keine Sicherungen oder sonstige Bauteile die vom Benutzer ausgewechselt oder gewartet werden k nnen Sollte ein physikalischer Fehler auftreten der mit den in diesem Handbuch beschriebenen Ma nahmen nicht zu beheben ist setzen Sie sich mit dem 3Com Vertreter in Verbindung bei dem Sie das Ger t erworben haben m Beistapelf higer Konstruktion n
90. ephone rings for calls to telephones connected to the ISDN LAN Modem s phone ports When this feature is enabled the ringing pattern for calls to telephone number one changes to distinguish between calls to telephone number one and calls to telephone number two By default this feature is disabled To enable do the following Go to the ISDN LAN Modem s main configuration page http 3com 0C LANmodem mainpage 2 Click ISDN Parameters 3 Locate Distinctive Ringing and then click the box labeled Enable 4 Click Submit Disconnecting Data Calls Disconnecting Data Calls Manually 1 You can disconnect data calls manually or use timers to disconnect calls automatically To disconnect calls manually do the following From the ISDN LAN Modem home page click Manual Calling Alternatively if you are using the custom browser click Dial Hang Up from the Links menu bar The Manual Call Control window appears In the table locate the name of the service provider from which you wish to disconnect and then verify that the call is up under the Status of Call column Click Hangup Call A message indicates that the call is being disconnected Disconnecting Calls Automatically Using Timers Bandwidth on Demand Parameters There are a number of ways by which you can configure calls to be disconnected automatically You can set timers and disconnect thresholds from the Data Call Parameters window Specifically the parameters
91. es guide conventions and tells you where to look for specific information This guide describes how to install and configure the OfficeConnect ISDN LAN Modem and provides descriptions of key applications and networking concepts These instructions apply to the international version of the product and cover both hardware versions ISDN U 3C892 and S T 3C891 Audience Description This guide is intended for end users with no presumed level of expertise How to Use Table 1 shows where to find specific information in this guide This Guide Table 1 If you are looking for Turn to An overview of the ISDN LAN Modem Chapter 1 An explanation of the ISDN LAN Modem s key functionality Chapter 2 A description of the ISDN LAN Modem s hardware components Chapter 3 Instructions on setting up TCP IP Chapter 4 Instructions for the typical configuring of the ISDN LAN Modem software Chapter 5 Instructions for advanced configuration of the ISDN LAN Modem software Chapter 6 Information on supplementary voice services Chapter 7 Information on placing receiving and disconnecting calls Chapter 8 Information on troubleshooting and maintenance Chapter 9 Background information on networking Appendix A Information on using the custom browser Appendix B ISDN LAN Modem factory default settings Appendix C Technical specifications for the ISDN LAN Modem Appendix D Definition of terms Glossary 18 ABOUT THIS GUIDE Conventions Table 2 and
92. es off Ethernet Transmit Status Flashes green when data is being transmitted to the Ethernet LAN from the ISDN LAN Modem Off indicates no data is being transmitted to the Ethernet LAN from the ISDN LAN Modem Ethernet Collision Status Flashes amber when some collisions are taking place on the Ethernet LAN Off indicates no collisions are taking place on the Ethernet LAN Ethernet LAN Port Status On indicates the unit detects the Ethernet link integrity signal from an attached computer and operation is normal Flashes when the computer attached to that port is transmitting data to the LAN Off indicates the unit does not detect the Ethernet link integrity signal The Ethernet cable may not be properly connected or the cable may be the wrong polarity Back Panel Connector The back panel provides the following components Description 10 18 VDC 0 8 A MAX O Power Connector lt Wm M0 a 1 PHONE 2 4 3 LAN 2 1 ISDN Two Analog Four Ethernet ISDN Reset Button Telephone Ports 10Base T Connectors BRI Interface Figure 12 ISDN LAN Modem Back Panel From left to right the back panel consists of the following Power Connect the power module cable to this port a Reset Press this button for no more than a couple of seconds if you have to reset the
93. f Spain 1 5 on 3 off Sweden 1 on 5 off Switzerland 1 on 4 off Taiwan R O C 2 on 4 off Thailand 0 4 on 0 2 off 0 4 on 2 off United Kingdom 0 4 on 0 2 off 0 4 on 2 off EurolSDN default 2 on 4 off Tone Definitions 123 Tone Definitions The following table lists the tone definitions for voice calls Table 19 Tone Cadence Busy tone 0 4 on 0 4 off 20 seconds Call waiting tone 0 2 on 0 2 off 0 2 on 4 4 off for 45 seconds Configuration positive acknowledgment tone 0 3 on 0 1 off 0 3 on 0 7 off for 5 seconds Configuration negative acknowledgment tone 0 1 on 0 1 off 0 1 on 0 1 off 0 1 on 0 5 off for 5 seconds Call waiting and CLIR enabled confirmation 0 3 on 0 1 off tone 0 3 on 0 7 off for 5 seconds Call Waiting and CLIR disabled confirmation 0 1 on 0 1 off tone 0 1 on 0 1 off 0 1 on 0 5 off for 5 seconds ISDN Line Disconnected Tone 0 1 on 0 1 off for 20 seconds Generated when the ISDN LAN modem does not have an available B channel to place an outgoing voice call 124 APPENDIX D ISDN LAN MODEM SPECIFICATIONS B channel BRI BACP BAP CHAP compression D channel DBA DHCP default domain DNS GLOSSARY Bearer channel In ISDN communications a B channel transmits data or voice traffic at a rate of up to 64 Kbps Basic Rate Interface A BRI line is one of two access methods to the I
94. f the remote LAN with or without Internet access then the call is routed to the direct ISP connection Once the connection is established any authorized user on the LAN can use this connection The ISDN LAN Modem will translate each individual user s IP address into a single shared IP address assigned by the remote location thereby allowing up to 25 users to access the same remote location The following example shows three users sharing a connection to the Internet and depicts the IP translation as it occurs in the ISDN LAN Modem 30 CHAPTER 2 ISDN LAN MODEM FUNCTIONALITY DESCRIPTION Internet Intranet or online service Translates PC IP addresses to IP address assigned IP address assigned by ISP ISDN BRI line Public telephone network Sally s PC 192 168 1 5 Figure 9 IP Address Translation Call Routing While One Call Is Already Connected If the ISDN LAN Modem has established a call to a remote destination for instance to an ISP and the ISDN LAN Modem receives more packets then the ISDN LAN Modem looks at the Network ID of the packets for proper routing For example if the Network ID of the packets matches that of the remote LAN and that connection has not yet been established then the call is placed and the connection is made If the Network ID does not match and the call type is an Internet access call then the packets are routed to the ISP Note th
95. fective on Arrival In the event a product completely fails to function or exhibits a defect in materials or workmanship within the first forty eight 48 hours of installation but no later than thirty 30 days after the date of purchase and this is verified by 3Com it will be considered dead or defective on arrival DOA and a replacement shall be provided by advance replacement The replacement product will normally be shipped not later than three 3 business days after 3Com s verification of the DOA product but may be delayed due to export or import procedures When an advance replacement is provided and Customer fails to return the original product to 3Com within fifteen 15 days after shipment of the replacement 3Com will charge Customer for the replacement product at list price 3Com shall not be responsible for any software firmware information or memory data of Customer contained in stored on or integrated with any products returned to 3Com for repair whether under warranty or not WARRANTIES EXCLUSIVE IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE CUSTOMER S SOLE REMEDY FOR BREACH OF THAT WARRANTY SHALL BE REPAIR REPLACEMENT OR REFUND OF THE PURCHASE PRICE PAID AT 3COM S OPTION TO THE FULL EXTENT ALLOWED BY LAW THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES TERMS OR CONDITIONS EXPRESS OR IMPLIED EITHER IN FACT OR BY OPERATION OF LAW STATUTORY OR OTHERWISE IN
96. g call will also be rejected if you are making an outgoing call and the call is not yet active or if your telephone is already ringing for an incoming call In other words you are only able to receive a call using the Call Waiting feature when you have one active call Calling Line Identification Restriction Supplementary Voice Services 91 You can restrict presentation of your telephone number s on Caller ID devices either permanently or on a per call basis By default CLIR is disabled meaning that you are allowing your telephone number to be shown on a Caller ID display If you enable CLIR you prevent the display of your telephone number on a Caller ID unit Permanent Configuration To enable CLIR on a permanent basis use the following handset commands from a telephone connected to a phone port on the ISDN LAN modem Table 6 Permanent Configuration of CLIR Press these telephone keys To do this 8 1 Enable CLIR for the phone port to which the handset is connected 8 0 Disable CLIR Waiting for the port to which the handset is connected 3 H Check if CLIR Waiting is enabled or disabled A double tone indicates this feature is enabled A triple tone indicates this feature is disabled Call By Call Configuration To enable CLIR on a temporary call by call basis use the following handset commands from a telephone connected to a phone port on the ISDN LAN modem Table 7 Call By Call Configuration of CLIR Press
97. g with Access to the Internet and a Remote Office Features 21 20 ISDN LAN MODEM FUNCTIONALITY DESCRIPTION Connection Types 25 WAN Side Connection 25 Two Separate Connections to Different Locations 26 One High Speed Connection to a Single Location 27 LAN Side Connection 28 Application Sharing over the LAN 28 Call Routing Protocol and IP Address Translation 29 Placing a Call to a Previously Defined Destination 29 Call Routing While No Other Calls Are Connected 29 Call Routing While One Call Is Already Connected 30 Understanding Multilink PPP and BACP BAP 30 What is Multilink PPP 30 What is BACP BAP 30 Multilink PPP Configuration Options 31 Understanding Dynamic Bandwidth Allocation 31 Understanding VPNs and PPTP 31 Setting Up the Server Side of the Tunnel 32 Setting Up the Client Side of the Tunnel 32 For Windows Dial Up Networking Users 33 Establishing a Tunnel via the ISDN LAN Modem 33 HARDWARE DESCRIPTION AND INSTALLATION Package Contents 35 Before You Install the ISDN LAN Modem 35 IBM PC or Compatible Requirements 36 Apple Macintosh Requirements 36 Front Panel LED Description 36 Back Panel Connector Description 37 Installing the ISDN LAN Modem 38 Before You Begin 38 Installing the ISDN Cable 38 Connecting to a 10BASE T Ethernet Port 39 Connecting to Another Ethernet Hub 40 Before You Begin 40 Installing Analog Equipment 41 Installing the Power Cable 42 Wall Mounting the ISDN LAN Modem 42 Using Rubber Feet and Stacki
98. guration page If you previously set your ISDN LAN Modem s IP address to something other than the factory default address enter this IP address in your Web browser s address bar in place of the address shown in the URL above Enter your password if required and then click Submit The ISDN LAN Modem main configuration page appears You now have full access and can make any configuration changes as if you were connected via your local LAN Note that you are limited to configuration of the LAN Modem when dialing in from a remote location For instance you cannot access the Web when during a remote dial in session If you cannot access the ISDN LAN modem ask a local user to check the Call Routing table and make sure that the data box is checked for the telephone number you are dialing oe they or SUPPLEMENTARY VOICE CALL SERVICES Supplementary Voice Services Before You Begin Call Waiting and Call Hold The ISDN LAN Modem supports the following supplementary voice services a Call Waiting and Call Hold a Calling Line Identification Restriction CLIR a Malicious Call Identification MCID In order to use these services they must also be supported on your ISDN line Call your telephone company if you want to have these services added Call Waiting allows you to place an active call on hold in order to answer an incoming call By default Call Waiting is enabled on both ports You can change this conf
99. gure 40 From this page you can Main Page access configuration parameters as well as place and receive calls Bookmark this page for easy access Alternatively if you are using the ISDN LAN Modem Web browser click Configure Modem from the Links menu bar 7J MainPage Microsoft Internet Explorer provided by 3Com Corporation File Edt View Go Favorites Help E E 7 Ga asa og Back Forward Stop Refresh Home Search Favorites History Channels Fullscreen Mail Print Edit Address 6 http 7192 168 1 1 mainPage htm y Links e Configure Modem e Dial or Hang Up e Register Modem e Updates e User Guide Euro ISDN 3Com OfficeConnect LAN Modem Home f WebWizard ISP Wizard 1 5 o Call A a Manual Caling vo aa Qe re P LAN Parameters ISDN Parameters Click on the icon in the WebWizard image map to go directly to each configuration screen You may also use the buttons along the left side of each window to configure your ISDN LAN modem E Done m Intemet zone Figure 40 ISDN LAN Modem WebWizard Main Page The ISDN LAN Modem main configuration page also called the WebWizard provides links to configuration dialing statistics screens and help Once you click to a configuration screen the bottom frame provides help for that configuration Links from the Illustration Links from the Buttons ISDN LAN Modem Main Page 65 as well as links to other help topics There are links
100. h client software you are using Refer to the user documentation provided with your PPTP software to determine how to establish a tunnel For instance if you are using Windows Dial Up Networking version 1 3 double click the phone book entry for the VPN Once you attempt to create a tunnel the ISDN LAN Modem detects this attempt and automatically places a call to your ISP Once the call is connected a tunnel is established between your workstation and the tunnel server You are ready to access a remote private network LAN as if you were connected locally Each workstation that wishes to have access to the remote private LAN will need to create its own tunnel Refertohttp www remoteaccess 3com com support docs lanmodem formore information For specific instructions on how to configure a VPN adapter in Windows 98 95 or Windows NT refer to Microsoft s Web site at http www microsoft com and then enter PPTP in the search field 34 CHAPTER 2 ISDN LAN MODEM FUNCTIONALITY DESCRIPTION oe they e Seeee HARDWARE DESCRIPTION AND INSTALLATION Package Contents The ISDN LAN Modem package includes a OfficeConnect ISDN LAN Modem Power cable with an AC wall transformer a ISDN telephone cable a 10BASE T Ethernet cable a 3Com Companion Programs CD ROM for PCs running Windows 98 95 Windows NT Windows 3 11 and for Macintosh computers running system software version 7 1 or later a Phone Port adapters for
101. he Network Setup icon Click the Drivers button Highlight the Microsoft TCP IP 32 X entry and click Setup If Enable DHCP Configuration is checked then your computer has a dynamic IP address If an IP address is entered in the IP Address box then your computer has a static IP address If your computer has a static IP address you must verify and possibly change some settings on your computer before you begin the configuration procedure The ISDN LAN Modem must be your gateway and one of your DNS servers Follow the procedure in the appropriate section to make sure that this is the case Note that if your computer has a dynamic IP address this configuration would occur automatically and you can go on to Configuring the ISDN LAN Modem for the Typical Configuration For Windows 98 and 95 Users From the Start menu select Settings and then Control Panel Double click Network and then select TCP IP If you have multiple TCP IP entries select TCP IP for the Ethernet card associated with the ISDN LAN Modem Click Properties and then select the Gateway tab and write down the first IP address in the Installed Gateways box If nothing is entered in the Installed Gateway list enter an IP address that does not belong to any workstation on your LAN but is in the subnet that you have chosen for your LAN Write this IP address down for later use 4 Click the DNS Configuration tab 5 In the DNS Server Search Order edit box enter the gate
102. he OfficeConnect ISDN LAN Modem is Year 2000 compliant Specifically its system clock is capable of accepting and storing dates including and beyond the year 2000 For information on Year 2000 compliance and 3Com products visit the 3Com Year 2000 Web page http www 3com com products yr2000 html or INTRODUCTION This chapter provides an overview of the OfficeConnect ISDN LAN Modem referred to throughout this document as the ISDN LAN Modem These instructions apply to the international version of the product and cover both hardware variations ISDN U 3C892 and S T 3C891 Introduction The ISDN LAN Modem is an easy to install LAN to WAN modem For the LAN it provides four 10BASE T Ethernet connections expandable to 25 connections Refer to Figure 1 for an example showing 10 connections by adding an 8 port 10BASE T Ethernet hub For WAN access it provides a Basic Rate Interface BRI ISDN port With the ISDN LAN Modem small office and home office users can share remote access to the Internet or to a remote office while continuing to network locally Applications Local Networking with Access to the Internet The primary application for the ISDN LAN Modem is a Local networking with shared access to the Internet and or a remote office LAN Users can share access to the Internet while continuing to network locally OfficeConnect Hub BIRO m
103. her Transmission Control Protocol Internet Protocol TCP IP is becoming the most common software used to accomplish this TCP IP is a standardized communications protocol that works across LANs and WANs allowing different devices to communicate with each other As its name indicates TCP IP has two main components TCP and IP TCP manages the transfer of data and corrects any errors that occur during transmission It ensures that data is reliably transferred IP routes the data in packets from one location to another across a network using the source and destination information within each data packet to determine routing and destinations Note that TCP IP encompasses more than the two protocols which define its name It comprises a set of software applications that allow various network services such as remote file transfer protocol FTP remote login Telnet and e mail Simple Mail Transfer Protocol SMTP and Post Office Protocol POP 3 114 APPENDIX A NETWORKING PRIMER What is an IP Address What is a Subnet Mask Dynamic and Static IP Addresses An IP address is a 32 bit address used by TCP IP to uniquely identify the location of a device on a network Note that the IP address does not refer to the device itself If for example you relocate a PC to another area of the same network you may need a new IP address The structure of this 32 bit address varies depending upon the size of the network on which the device is located
104. ice for e mail printing and so on then select private network as the type of service provider you want to configure If the private network you are dialing into provides the option of accessing the Internet and you want to be able to reach the Internet through your corporate LAN as opposed to through a direct connection to an ISP then choose that option when configuring your private network parameters Direct Connection to Private Network Direct Connection to Private Network amp ISP via Private Network Remote office LAN gt w s T eg Tw LAN Modem Figure 42 Direct Connection to a Private Network This section describes how to set up your ISDN LAN Modem for access to the Internet Before You Begin Before you begin you will need the following information from your ISP a Telephone number s you must dial to access this ISP a User ID and password a DNS IP address es This information is required only if your ISP does not provide the IP address dynamically Setting Up a Connection to the Internet To set up a connection to an ISP do the following 1 From the ISDN LAN Modem main page click the Service Providers graphic 2 Select New Internet Service Provider from the drop down list box CHAPTER 6 ADVANCED CONFIGURATION 3 MainPage Microsoft Internet Explorer provided by 3Com Corporation BEE File Edt View Go Favoites Help gt a El lt gt a a Y Y ll Forward
105. ide this information al E Done 8 Intemetzone Figure 50 ISDN Parameters Window In the Telephone Number 1 field enter the first telephone number associated with your ISDN line If any of the telephone numbers that you enter contains a subaddress enter the teleohone number followed by an asterisk and then the subaddress number For example type 020 555 1212 3 If you have a second telephone number associated with your ISDN line enter it in the Telephone Number 2 field If you have a third telephone number associated with your ISDN line enter it in the Telephone Number 3 field If your telephone company requires you to manually enter a TEI select Fixed TEls and then enter the value provided by your telephone company in the TE 0 63 field Click Submit If you want to password protect the configuration profile of the ISDN LAN modem refer to Locking and Unlocking the Configuration Locking and Unlocking the Configuration Once you have completed configuration of the ISDN LAN Modem you can establish password protection over your ISDN LAN Modems configuration parameters To lock the configuration do the following 1 Click Password from the ISDN LAN Modem s main page 2 Under the Lock Configuration section click the Lock Configuration button Configuring the ISDN LAN Modem from a Remote Location 87 You may need to scroll down to see the Lock Configuration section A message indicate
106. iguration by entering the appropriate commands listed in Table 5 using a telephone connected to one of the phone ports Table 5 Configuring Call Waiting Press these telephone keys To do this 43 Enable Call Waiting for the phone port to which the handset is connected 43 Disable Call Waiting for the port to which the handset is connected 43 Check if Call Waiting is enabled or disabled A double tone indicates this feature is enabled A triple tone indicates this feature is disabled Once Call Waiting is turned on it remains on until it is turned off Call Hold Call Hold as a service in conjunction with Call Waiting not as a separate service allows you to interrupt a call in order to receive a second incoming call When Call Hold is on communication on a B channel is interrupted and the B channel is released for the incoming call The Call Hold function does not however allow you to put a call on hold and make a second outgoing call it only allows for a second incoming call How to Use Call Waiting To use Call Waiting do the following When you hear the Call Waiting tone press and release the switch hook button to put the first call on hold and connect to the second call To put the second call on hold and switch back to the first call press and release the switch hook button CHAPTER 7 SUPPLEMENTARY VOICE CALL SERVICES To toggle back and forth between the two calls simply press and release the switch h
107. ions is shown in Figure 4 26 CHAPTER 2 ISDN LAN MODEM FUNCTIONALITY DESCRIPTION 10 Mbps Ethernet LAN OfficeConnect Hub 8 TPO OfficeConnect ISDN LAN Modem Figure 4 ISDN LAN Modem LAN Connection with 10 Workstations An example of a single connection is shown in Figure 5 OfficeConnect ISDN LAN Modem Figure 5 ISDN LAN Modem Single Workstation Connection Example Two Separate An ISDN BRI line has two B channels for transmitting data or voice Because each Connections to Different B channel is independent you can connect to two different locations Once the Locations connection is established up to 25 users can share either connection Figure 6 shows one user connecting to a remote office LAN while another connects to the Internet Connection Types 27 Internet Intranet or online service Greg 64 Kbps B1 Remote office Peter LAN 64 Kbps B2 OfficeConnect SISPN LAN Modem _Greg 64 Kbps B1 LIS Peter 64 Kbps B24 Public telephone A AS network ISDN BRI line Figure 6 Two Simultaneous Remote Connections to Different Locations One High Speed Alternatively the B channels can be combined using Multilink PPP to form one Connection to a Single high speed connection to a single location Figure 7 shows a single high speed Location connection to a remote office LAN
108. ish a secure multi protocol connection to a remote private network via a single locally dialed ISP account as shown in Figure 10 Any networking protocols such as IP IPX and NetBEUI can be supported transparently through the tunnel While the ISDN LAN Modem supports PPTP it does not play an active role in creating or terminating a tunnel Internet Service R Provider LAN Modem Tunnel yA terminator Corporate network Figure 10 Connection to an Remote Private Network via an ISP The main steps for creating a VPN are as follows Each step is explained in detail in subsequent sections Set up the server side of the tunnel connection a Set up the client side of the tunnel connection a Initiate a tunnel between client and server using your client software In order to establish a tunnel the client side must be able to dial into a PPTP tunnel server on the remote private network such as a Windows NT server version 4 0 or later If you use Windows NT 4 0 then Service Pack 3 or greater and RAS must be installed Also the protocols required for the private network must be installed on the PPTP tunnel server It is recommended that an experienced network administrator set up the server side Note that protocols required for the private network must be installed on each PPTP tunnel client as well as the PPTP tunnel server In order to establish
109. ld only have one computer physically connected to the ISDN LAN Modem during configuration Once you complete the configuration process connect any other computers you would like to have on the LAN and then power cycle each computer If the newly added computers cannot communicate with the ISDN LAN Modem refer to Evaluating Symptoms and Solutions in Chapter 9 a Telephone number s for your ISDN line provided by your telephone company a If you want to set up a connection to an ISP you will also need the telephone number to call for access to your ISP as well as your user name password and DNS address if your service provider requires a DNS address to be configured Your setup procedure will vary depending upon whether you are using a dynamic or a static IP address A static IP address is a permanent manually assigned address recognized by a remote server such as a corporate LAN or an ISP By default your ISDN LAN Modem dynamically assigns an IP address to each computer If you have been accessing a remote server via a static IP address prior to installing your ISDN LAN Modem you may be required to perform additional configuration steps The first step is to determine your static versus dynamic IP addressing scenario If you determine that your computer has a static IP address refer to Setting Up Your Computer If You Have a Static IP Address If your computer has a dynamic IP address you may begin configuring the ISDN LAN M
110. le is properly connected to the ISDN LAN Modem and the ISDN wall outlet 100 CHAPTER 9 TROUBLESHOOTING AND MAINTENANCE Monitoring LEDs Monitoring the ALERT LED Monitoring the ISDN LED Monitoring the B Channel LEDs Monitoring the LAN Port Status LEDs If you are experiencing operational inconsistencies monitor the ALERT ISDN B channel and LAN port status LEDs to isolate problems Press and release the Reset button and observe the ALERT LED During power up self test the ALERT LED will remain lit m f the ALERT LED goes out the test has been successful m If the ALERT LED flashes for more than several seconds this indicates one of the following a ISDN LAN Modem is in firmware download mode a There is an internal failure in addition to the LED flashing the ISDN LAN Modem resets itself Place a call and then observe the ISDN LED One of the following three conditions may occur If the ISDN flashes and then remains lit your ISDN line is functioning properly If the ISDN LED never turns on check the ISDN cable Ensure that it is connected securely to the wall outlet and the ISDN LAN Modem s ISDN port If the ISDN LED still is not lit there may be a problem with your ISDN line If the ISDN LED flashes but does not remain lit first make sure that your ISDN telephone numbers are configured accurately click SDN Parameters from the WebWizard main page If your telephone numbers are configured correctly
111. like to connect they will be associated with all up to 25 of the workstations on your LAN by default You can change these associations if desired For example if only one workstation on the LAN should have Internet access you can associate that ISP connection with one workstation exclusively This will prevent all other users on the LAN from accessing the Internet from their computers You can change these associations from the Workstation Parameters window which provides the following information for each workstation Name This field contains the name of the workstation you selected If you have Macintosh computers on your LAN the name does not automatically appear in the Name field You should enter the name for the Macintosh in the Name field a IP Address This field contains the IP address of the workstation you selected You should not have to make any changes to this field unless you are using 76 CHAPTER 6 ADVANCED CONFIGURATION gt static IP addresses that is IP addresses which are not dynamically assigned by the ISDN LAN Modem Service Provider Usage Under Enable the use of the following Service Providers you can see which service providers can be accessed from this workstation a IP Address Statically Configured on Workstation This field allows you to reserve a workstation s static IP address in the DHCP server to ensure that it is not dynamically assigned to another workstation It is recommended that you do
112. ly in the Setting Up Your Computer If You Have a Static IP Address section Launch your Web browser The ISDN LAN Modem attempts to use its default IP address to communicate with the computer If communication cannot be established the ISDN LAN Modem will change its default IP address If this occurs the ISDN LAN Modem will reset itself and then function as described in this section Regardless of the start page to which your Web browser is set your Web browser will go to the ISDN LAN Modem configuration setup A welcome message appears as shown in Figure 35 eq A ma SS Figure 35 Initial SetUp Welcome Window Click Continue A message box appears and indicates that the ISDN LAN Modem clock is being synchronized to the date and time on your PC The Set Password window appears This password is used to guard access to the ISDN LAN Modems configuration program If you would like to restrict access to the configuration program select a password and record it in a safe place 60 CHAPTER 5 CONFIGURING THE ISDN LAN MODEM o zA Foyer Set Password Tf you want to prevent unauthorized access to this LAN Modem unit you have to Set your password by entering it twice in the fields below and clicking on the submit button This will store your password in the LAN Modem unit When you finish configuring your LAN Modem lock your configuration The lock configuration button is accessible through the Main Menu s
113. m refer to Locking and Unlocking the Configuration Changing Country Selection You may find that you need to change the country you selected when you initially set up the ISDN LAN modem This is likely to occur if you are now in a different location You can change the country selection by resetting the ISDN LAN modem to its factory default setting This allows the ISDN LAN modem to be reconfigured for the new country Note that configuration information such as service provider profiles will be erased If you would like to change the country do the following From the ISDN LAN modem main page click Maintenance Select factory reset A message indicates that the ISDN LAN modem is being reset After the reset is complete the Welcome window appears Click Continue A message box appears and indicates that the ISDN LAN Modem clock is being synchronized to the date and time on your PC The Password window appears Enter your password and then click Submit The Country Selection window appears 5 Select a country and then click Submit 6 Enter the telephone numbers associated with your ISDN line 7 Click Continue The ISP Wizard appears Enter your ISP information For detailed instructions refer to the Setting Up a Connection to an ISP section of this chapter Click Continue A call is launched to your ISP 84 CHAPTER 6 ADVANCED CONFIGURATION Reserving DHCP Addresses gt If you have works
114. me locations layer 1 will be down if no calls are connected However when a Call is placed layer 1 goes up In other geographic areas layer 1 is always up once the ISDN line is configured That is the ISDN LED remains lit once you configure your ISDN telephone numbers and while the ISDN LAN modem is turned on Therefore layer 1 down may or may not indicate that there s a problem with your ISDN line If your ISDN LED remained lit after you configured your ISDN line and while you connected and disconnected calls then layer 1 down indicates that there s a problem with your ISDN line You should contact your telephone company Layer 2 status Indicates whether layer 2 of the ISDN line is up or down If Layer 2 is down for more than a few seconds while layer 1 is up click Update to verify first make sure that your ISDN telephone numbers are configured accurately click ISDN Parameters from the WebWizard main page If your telephone numbers are configured correctly check with your telephone company There may be a problem with your ISDN line Table 11 ISDN Line Information Description Layer 1 status Indicates whether layer 1 of your ISDN line is up or down Layer 2 status Indicates whether layer 2 of your ISDN line is up or down TEI Indicates the TEI value assigned to your ISDN line by your telephone company The current call information provided is as follows Table 13 Current Call Information Description Current Call
115. ment such as ISDN modems In ISDN communications the physical layer of communication between the communications equipment If layer one is down there is no ISDN connection between the devices Multilink Point to Point Protocol Multilink PPP is a protocol which provides a method for combining multiple PPP connections With a BRI line Multilink PPP aggregates the two 56 Kbps or 64 Kbps ISDN B channels creating a virtual single digital connection of 112 Kbps or 128 Kbps A network termination device that terminates the ISDN line The ISDN LAN modem with the ISDN S T interface 3C891 must be plugged into an NT1 An NT1 is built into the ISDN LAN Modem with the U interface 3C892 Password Authentication Protocol PAP is one of two PPP authentication protocols supported by the ISDN LAN Modem CHAP is the other An authentication protocol requests information to verify a valid user PAP requests the user s name and password for verification PC TCP is a PC version of TCP IP created by FTP software Plain old telephone service Point to Point Protocol PPP provides a standard method of transmitting data through the Internet PPP is used for communication between a computer and an Internet service provider Point to Point Tunneling Protocol A protocol that allows a workstation to establish a secure multi protocol connection to a remote private network via a locally dialed ISP account See also VPN Primary Rate Interface A PRI line is
116. mputer and then launch your Web browser Make sure you are using the 8 pin to 8 pin cable labeled Ethernet that was provided with your ISDN LAN Modem If you are using another 10BASE T Ethernet Category 5 cable it must be a straight through cable Enter a default URL from within your Web browser If you are using Internet Explorer launch your Web browser From the View menu select Options From Page select Start Page and then enter an address in the address field such as http www 3com com If you are using Netscape launch your Web browser From the Options menu select General Preferences From Browser Starts With select Home Page Location and then enter aURLsuch ashttp www 3com com Your Web browser may be configured to use a proxy server instead of the LAN Modem Internet Explorer users Launch your Web browser From the View menu select Internet Options and then the Connection tab Under the Proxy Server header uncheck the box labeled Accessing the Internet using a proxy server Netscape users Launch your web browser From the Edit menu select Preferences Double click Advanced and then click Proxies Check the box labeled Direct Connection to the Internet continued Evaluating Symptoms and Solutions 103 Table 9 Symptoms Causes and Solutions Symptom Possible Cause Solution ISDN LAN Modem has assigned From another computer attached to the ISDN LAN all available IP addresses Modem go to the
117. mware download Carefully monitor the B1 and B2 LEDs while attempting a Call These LEDs flash during call establishment and hen remain green or amber once the connection is established If neither LED flashes make sure that your computer is urned on and operational If you are able to place a voice call but not a data call hen there may be an incompatible local or toll elephone company Contact your local telephone company and have it verify that you can dial a data call o the destination telephone number Check the cables to ensure that they are securely connected to the appropriate ports If the telephone wires at your site appear to be satisfactory call your local telephone company for assistance Check the Ethernet cable connection and make sure it is inserted properly in a port labeled 1 2 3 or 4 on the back of the ISDN LAN Modem and in the Ethernet port on the back of your computer Also your computer should be turned on and your network software should be running Make sure your Ethernet card is set up properly proper drivers are loaded Refer to the documentation provided with your Ethernet card for instructions 102 CHAPTER 9 TROUBLESHOOTING AND MAINTENANCE Evaluating Symptoms and Solutions Table 9 lists symptoms of common problems possible causes and possible solutions Table 9 Symptoms Causes and Solutions Symptom Possible Cause Solution Upon initial setup communication betwee
118. n is established Once connected you are ready to run any desired application appropriate for that location such as ftp to transfer files or you may enter a different URL in your Web browser to access the Internet Once a temporary call is established other workstations may also connect to this service provider by clicking TempSvcProvider Note that if multiple parties are connected to TempSvcProvider the call is disconnected as soon as one party hangs up Unlike calls to configured service providers temporary call connections cannot be shared by other users automatically For instance if one workstation is connected to an ISP that is configured as one of the four service providers and you want to use the same ISP you simply launch your Web browser However if a temporary call has been placed in order for another workstation to use that connection that other workstation user must go to the Manual Calling page and then click Participate in existing call to telephone number Before you place a call ensure that either the Use Two B Channels or Add Second B Channel check box on the ISDN LAN Modems Service Provider Parameters window is checked as described in Setting Up Additional Service Providers in Chapter 5 Also the destination you are calling must also support Multilink PPP For example if you are trying to dial into the Internet your ISP must also support Multilink PPP in order to successfully place a Multilink PPP call
119. n may be set to Use two B Channels The standard period of time most modems are set to wait for a dial tone before hanging up the call is 2 seconds which is about the same amount of time it takes the ISDN Modem to drop the second B channel from a Multilink PPP call and re establish a dial tone A limitation of NAT the SMTP server uses a different port number than the one requested by the workstations sending e mail so the LAN Modem does not know which of the 2 or more workstations to forward the response to Therefore the request is discarded After 30 seconds the SMTP server responds this time using the port number specified by the workstation allowing the e mail to be sent Compression is not configured Compression negotiation was not successful Go to the appropriate Service Providers page and change the Bandwidth Allocations setting to Add second B channel as required Adjust the analog modem setting as follows Change S Register 6 Wait Time for Blind Dialing on the analog modem to a value of 3 or higher the default is usually 2 to increase the period of time your analog modem is set to wait before hanging up the call Co ordinate the sending of your e mail with the other workstations or have each workstation use a different SMTP mail server Go to the appropriate Service Provides page and ensure compression is enabled Although compression is enabled on the LAN Modem the device the LAN Modem is di
120. n the ISDN LAN Modem and my computer cannot be established Incompatible IP address on your computer Your Web browser needs the IP address of the ISDN LAN Modem There is a configuration problem The wrong cable may be connected to the LAN port on the ISDN LAN Modem and your PC Web browser may not be set to a default start page Reset the IP address on your computer For Windows 98 and 95 users run Winipcfg exe Select the Ethernet adapter connected to the ISDN LAN Modem Click Release All and then click Renew All For Windows NT 4 0 and Windows 3 11 users run ipconfig release and ipconfig renew For Mac users from the Apple menu select Control Panels and then select TCP IP Make sure Ethernet is selected in the Connect via field From the Configure field select Using BootP Server to clear the fields then close and save changes to the Control Panel Open the TCPAP control panel and select Using DHCP Server The fields should now read lt will be supplied by server gt Select File and then Close and save changes when prompted Enter the following URL in your Web browser http 192 168 1 1 mainpage or http 3Com 0C LANmodem mainpage Reset the ISDN LAN Modem to the factory default setting Disconnect the ISDN cable from the ISDN LAN Modem and then connect an analog telephone to one of the phone ports Lift the handset and press 3266 and then replace the handset Reconnect the ISDN cable restart your co
121. nding Last Call The last call information for both B channels that is call 1 and call 2 is as follows Information Table 14 Understanding Last Call Information For This Call Last Call Information Type Description Call type Data or voice Indicates the type of call data or voice and the B channel rate 56 Kbps or 64 Kbps or TollMizer Call direction Data or voice Indicates whether the last call is incoming or outgoing Service provider name Outgoing data Indicates the destination to which the last call is connected continued 110 CHAPTER 9 TROUBLESHOOTING AND MAINTENANCE For This Call Last Call Information Type Description Data call options Data call If the last call was a data call indicates the type of data Call start time The call was up for seconds Number of octets received Number of octets transmitted Calling telephone or port number Called telephone number Reason for call going down Reason for call coming up Understanding Service Provider Information Voice or data Data call Data call Data call Voice or data Voice or data Voice or data Data call Multilink PPP or PPP number of B channels in use for the call whether compression is on or off and whether BACP was negotiated on or not off Multilink 2B No BACP Compression On Displays the date and time the call began Indicates the length of time this last call has been connected Indicates the num
122. ng Clips 43 SETTING UP TCP IP FOR WINDOWS AND MACINTOSH TCP IP Setup Using Windows 98 and Windows 95 45 TCP IP Setup Using Windows NT 4 0 48 TCP IP Setup Using Mac OS 7 6 or later 51 TCP IP Setup Using Windows 3 11 52 Setting Up TCP IP Using MS TCP 52 CONFIGURING THE ISDN LAN MODEM Typical Configuration 55 Before You Begin 56 You Should Have Done This 56 You Should Have This Information 56 Determine Whether You Use Dynamic or Static IP Addresses 56 Setting Up Your Computer If You Have a Static IP Address 57 For Windows 98 and 95 Users 57 For Windows NT 4 0 Users 57 For Macintosh Users 58 For Windows 3 11 Users 58 Configuring the ISDN LAN Modem for the Typical Configuration 59 Configuring a Static IP Address on the ISDN LAN Modem 63 ISDN LAN Modem Main Page 64 Links from the Illustration 65 Links from the Buttons 65 6 ADVANCED CONFIGURATION Before you Begin 67 Setting Up Additional Service Providers 68 ISP versus Private Network 68 When to Select ISP 68 When to Select Private Network 69 Setting Up a Connection to an ISP 69 Before You Begin 69 Setting Up a Connection to the Internet 69 Setting Up a Connection to a Private Network 72 Before You Begin 72 Setting Up a Connection to a Remote LAN 72 Associating Service Providers with Workstations on the LAN 75 Editing Service Provider Profiles 76 Restricting Workstations from Accessing Service Provider s 77 Configuring Your LAN Parameters 77 Understanding LAN Parameters
123. ng types of statistics a System a ISDN a Current Call a Last Call a Service Provider Refer to the appropriate section for a list and description of the information provided Click the Update button on each of the statistics screens to see the latest information The system statistics provided are as follows Table 10 Description of System Statistics System Statistics Description Product ID Displays product identification number such as 3C891 Serial Number Displays the serial number of the ISDN LAN Modem Ethernet Address Displays the MAC address of the ISDN LAN Modem System software version number Displays the firmware version of the ISDN LAN Modem Boot software version number For internal use only The LAN modem has been up for Displays the length of time the ISDN LAN Modem has been running Timer is reset either when the unit is power cycled or reset Date Day Month Year Lists the current date of the ISDN LAN Modem Time Hour Minute Second Lists the current time of the ISDN LAN Modem This date and time is based on the date of the computer used to initially set up the ISDN LAN Modem 108 CHAPTER 9 TROUBLESHOOTING AND MAINTENANCE Understanding ISDN Information Understanding Current Call Information The ISDN statistics provided are as follows Layer 1 status Indicates whether layer 1 of the ISDN line is up or down Depending upon your location layer 1 functions in one of two possible ways In so
124. nnel Rate 64Kb s 56Kbis Use Data Compression Yes No Use Network Address Translation NAT Yes No WAN Link IP Address Gf Numbered l J Mi WAN Link Subnet mask 255 E E Allow Automatic Call Initiation Yes C No Unsolicited incoming packet processing Gf NAT is enabled Enable intelligent NAT Yes C No Default Workstation Unknown Submit Reset Form Delete Entry 2 Select New Private Network from the drop down list box and then click Se ect Figure 46 Private Network Parameters Window CHAPTER 6 ADVANCED CONFIGURATION 3 gt In the Name field enter a name for this remote destination such as the name of the location of the office You may want to add an additional description if you have more than one account with this private network In the Telephone Number 1 field enter the telephone number you must dial in order to reach this remote office If the telephone number contains a subaddress enter the telephone number followed by an asterisk and then the subaddress number For example type 020 555 1212 3 In the Alternate Number field you can either enter an alternative number or if required by this private network a second telephone number to establish a Multilink PPP call To enter a second alternative telephone number for this private network that will be automatically dialed if for example the first number is busy select Alternate and then
125. o this service provider every time you want to connect You may want to set this field to No if your calls are being connected unintentionally as a result of packets generated by your workstations In the Default Workstation for Incoming Packets field specify the workstation to which all unsolicited TCP UDP packets should be delivered Note that if the Allow Automatic Incoming NAT field is set to Yes the ISDN LAN Modem first attempts to deliver the unsolicited TCP UDP packets to the workstation that is currently communicating with the remote host that has generated these packets Only if no such workstation is found the packets are delivered to the specified default workstation For Enable Intelligent NAT leave the default setting which is Yes in order for the LAN Modem to support Internet applications and games The ISDN LAN Modem delivers all unsolicited TCP UDP packets to the workstation that is currently communicating with the remote host that has generated these packets If you set this field to No all unsolicited TCP UDP packets are delivered to the default workstation Click Submit If you would like to configure a connection to another remote office repeat steps 1 through 18 You can configure up to four remote destinations If you want to password protect the configuration profile of the ISDN LAN Modem refer to Locking and Unlocking the Configuration Once you have configured the service providers to which you would
126. ocation setting for that service connected another voice or configured to always use two provider Refer to Editing Service Provider Profiles in data call cannot be placed B channels leaving no bandwidth Chapter 6 for details available for another call Cannot place a call over the Modem mistakes analog phone Add the following command to the Sportster modem LAN Modem s phone port line for digital line init string AT LO using a Sportster PC Card modem After placing a Multilink PPP The handset was lifted to place a Hang up the handset wait a few seconds and then try call you lift the handset of a call while the ISDN LAN Modem again telephone to place acalland was negotiating the Multilink PPP do not hear a dial tone call Negotiation must be complete before a call can be placed continued Table 9 Symptoms Causes and Solutions Symptom Possible Cause Evaluating Symptoms and Solutions 105 Solution Cannot hear dial tone when attempting to place a call using an ISDN LAN Modem phone port Cannot receive an incoming call The analog modem connected to the ISDN LAN Modem is unable to detect dial tone when attempting to place an analog call while a Multilink PPP call is established Sending e mail is occasionally slow when more than one workstation is sending e mail to the same SMTP server Compression does not work Bandwidth Allocation may be set to Use two B Channels Bandwidth Allocatio
127. odem delivers all unsolicited TCP UDP packets to the workstation that is currently communicating with the remote host that has generated these packets If you set this field to No all unsolicited TCP UDP packets are delivered to the default workstation Click Submit If you would like to configure a connection to another ISP repeat steps 1 17 You can configure up to a total of four remote destinations If you want to password protect the configuration profile of the ISDN LAN Modem refer to Locking and Unlocking the Configuration This section describes how to set up your ISDN LAN Modem for access to a private network such as a remote office LAN Before You Begin Before you begin you will need the following information from your MIS department a Telephone number s you must dial to access this private network a User ID and password a P address subnet mask of the remote LAN you want to access In addition you may need the following depending on your particular network setup Check with your MIS department Domain name of the remote LAN you want to access a DNS IP address es a WAN Link IP address Setting Up a Connection to a Remote LAN To set up a connection to a remote LAN do the following From the ISDN LAN Modem main page click the Service Providers graphic The Service Provider Selection window appears Setting Up Additional Service Providers 73 A MainPage
128. odem directly Refer to Configuring the ISDN LAN Modem for the Typical Configuration Determine your IP address type as follows For Windows 98 95 and NT 4 0 Users From the Start menu select Settings and then Control Panel Double click Network Select TCP IP for the Ethernet card you will attach to the ISDN LAN Modem and then click Properties Select the P Address tab If the radio button labeled Obtain an IP address automatically Windows 98 and 95 or labeled Obtain an IP address from a DHCP server Windows NT 4 0 is selected your computer has a dynamic IP address If the radio button labeled Specify an IP address is selected your computer has a static IP address a For Mac Users From the Apple menu open Control Panels Double click TCP IP Choose Ethernet or Ethernet built in from the Connect via drop down list box if it is not already chosen If the Configure drop down list box is set to Using DHCP Server then you are on a dynamic network and are ready to continue directly with Installing the ISDN LAN Modem If Setting Up Your Computer If You Have a Static IP Address Before You Begin 57 Configure is not set to Using DHCP Server and you have specific values listed in any of the following fields IP Address Subnet mask Router address or Name server addr then your computer has a static IP address a For Windows 3 11 Users From the Program Manager double click the Network program group icon Double click t
129. omputer If You Have a Static IP Address Click Submit The ISDN LAN Modem will reset Click Refresh from your Web browser s menu bar The Enter Password window appears Enter your password and then click Submit The ISDN LAN Modem main configuration page appears Click the SP Wizard button You will see the information you entered previously 64 CHAPTER 5 CONFIGURING THE ISDN LAN MODEM 8 Click Continue A call is launched to your ISP A congratulations message appears when you successfully connect to your ISP This verifies the correct configuration of your ISDN line and ISP connection D gt This configuration covers the typical parameters needed to connect to your ISP There are additional parameters for this ISP connection which have been set to a typical default These parameters include Domain Name Compression NAT and WAN Link IP Address In addition you can enter a second telephone for connection to your ISP For information on these parameters and instructions for changing their default values refer to Editing Service Provider Profiles on page 76 9 Click Continue to go to the ISDN LAN Modem Web site where you should register the product and view the ReadMe file which contains the latest information Bookmark this URL for all the latest up to date information about your ISDN LAN Modem http www remoteaccess 3com com support docs lanmodem ISDN LAN Modem The ISDN LAN Modem main page is shown in Fi
130. onnections you set up simply Automatically launch the application For example if an ISP was configured simply launch your Web browser on your computer to connect to the default location configured in your Web browser Telephone Number Selection for Data Calls When you place a data call the ISDN LAN Modem tries to use the second telephone number assigned to your ISDN line in order to leave the first telephone number free for voice calls In many instances when voice services are added to an ISDN line they are added only to the first telephone number and not the second telephone number Because of this the ISDN LAN Modem tries to use the second telephone number when available for data calls Call Routing Among Service Providers The ISDN LAN Modem automatically calls the first configured service provider If you configure a second remote connection such as an additional ISP and want to use that second profile for an automatic data call do the following 1 Access the ISDN LAN Modems configuration main page 2 Choose the Workstation graphic 3 Select your computer 4 Associate only the Service Provider that you want to use 94 CHAPTER 8 PLACING RECEIVING AND DISCONNECTING CALLS Placing a Call Manually Placing a Call Manually to an Existing Service Provider Placing a Call Manually to a Temporary Service Provider gt Nn OUA UN You can also manually place a call to an existing service provider or to a destin
131. ontact your 3Com reseller m Do not push any objects into the openings of the unit Doing so can cause fire or electric shock by shorting out internal components m Only equipment approved for use by your telecoms company can be connected to the telephone port m Avoid using a telephone which is connected to the unit other than a cordless type during an electrical storm m Equipment connected to the telephone port must be located in the same building as the unit m Be sure nothing rests on the units system cables and that the cables are not located where they can be stepped on and cause damage to the unit m Keep the unit away from radiators and heat sources Allow 25mm 1inch around the unit to provide adequate air circulation m Install the unit in a clean area that is free from dust or extreme temperatures m Allow a clearance gap of at least a 150 mm 6 inches from the rear panel of the unit to allow for cable access m Interconnecting directly or by way of other apparatus to ports complying with SELV requirements may produce hazardous conditions on the network Advice should be sought from a competent engineer before such a connection is made TABLE OF CONTENTS ABOUT THIS GUIDE How to Use This Guide 17 Conventions 18 Year 2000 Compliance 18 INTRODUCTION Introduction 19 Applications 19 Local Networking with Access to the Internet 19 Local Networking with Access to a Remote Office 20 Local Networkin
132. ook button To end an initial call when you hear the Call Waiting tone instead of putting the call on hold hang up the phone and wait for it to ring The phone rings to indicate that there is a an incoming call and the B channel LED flashes You are connected to the second call when you pick up Or if you already have a call on hold while on an active call and you want to end the active call before returning to the call on hold hang up the phone and wait for it to ring back Pick up the phone to reconnect to the call on hold What if the active caller hangs up from the far end If the active caller hangs up from the far end the call on hold will remain on hold until you retrieve it by pressing and releasing the switch hook button What if the call on hold is dropped from the far end If the call on hold is dropped from the far end you will receive no notice If you press and release the switch hook button you will remain on the same call Disconnecting a Call on Hold To disconnect a call on hold you must first make a call on hold active in order to drop it To make the call on hold active press and release the switch hook button Then simply hang up the phone to drop the active call The ISDN LAN modem can support a maximum of two simultaneous voice calls per phone port An incoming call is rejected and the caller hears the user busy tone if you already have two calls up one active and one on hold An incoming Call Waitin
133. ot be established the ISDN LAN Modem will change its default IP address If this occurs the IP address shown in Figure 47 and the subnet mask will be different The subnet mask identifies the subnetwork to which your computer is connected You should leave the default unless you are certain that this value must be changed AN WARNING If you change the IP address and or the subnet mask the ISDN LAN Modem will re initialize itself to make the new settings work All calls will be terminated and you may need to reconfigure the IP addresses of the computers connected to the ISDN LAN Modem For a LAN using static IP addresses you must manually reconfigure the IP addresses of the workstations on the LAN via the Workstation Parameters window For a LAN using dynamic IP addresses if you have Windows 98 or 95 launch winipc g exe probably located in your Windows directory click Release All and then click Renew All Local Domain Name The local domain name identifies your LAN LAN refers to the network created by the ISDN LAN Modem and the devices attached to it Enable DHCP Server The ISDN LAN Modem provides DHCP server functionality for the LAN which automatically assigns a network or IP address to a newly attached workstation on an IP network If another device on your LAN is providing this functionality or if you are using static IP addresses then you should disable the DHCP server Enable NetBIOS Filtering For Windows Users NetBI
134. r Setting Up a Connection to a Private Network or refer to the online help located in the frame at the bottom of the web page When finished click Submit Restricting Workstations from Accessing Service Provider s gt If you want to restrict a workstation s on the LAN from accessing a service providers s do the following click Workstation Parameters from the ISDN LAN Modem home page 2 Select the workstation from which you want to limit access 3 Clear the check boxes located next to the names of the service provider s you want to restrict from accessing that service provider over the LAN 4 When finished click Submit Repeat the previous steps for additional workstation access restrictions If you want to password protect the configuration profile of the ISDN LAN Modem refer to Locking and Unlocking the Configuration Configuring Your LAN Parameters Understanding LAN Parameters This section describes how to configure the parameters of your LAN LAN refers to that section of the network comprising your ISDN LAN Modem and all the computers or other devices attached to it by means of Ethernet cabling This section describes the LAN parameters and then provides configuration steps The LAN Parameters window shown in Figure 47 contains the following fields E MainPage Microsoft Internet Explorer provided by 3Com Corporation BoE l File Edt View Go Favorites Help Sh emo fal
135. r the percentage in the Connect Disconnect Threshold field is reached If you specified that you want to use the second B channel only when needed enter the length of time the ISDN LAN Modem should wait before removing the second B channel after it falls below the threshold defined in the Connect Disconnect Threshold field Click Submit If you want to password protect the configuration profile of the ISDN LAN Modem refer to Locking and Unlocking the Configuration 82 CHAPTER 6 ADVANCED CONFIGURATION Changing Call Routing This section describes the default setting for routing voice and data calls and provides instructions for changing the way voice and data calls are routed Default Setting By default incoming voice calls to telephone number 1 are routed to phone port 1 incoming voice calls to telephone number 2 are routed to phone port 2 Also data calls are allowed over all three ISDN telephone numbers i gt A checked box indicates both incoming and outgoing calls voice or data depending on the box es checked may be received and dialed over that ISDN telephone number Changing Call Routing To change the call routing setting do the following 1 From the ISDN LAN modem home page select the telephone graphic The Call Routing window appears E MainPage Microsoft Internet Explorer provided by 3Com Corporation ax l File Edt View Go Favorites Help E e gt E E A g
136. s Ports identified by the labels LAN and Phone SELV SELV Safety Extra Low Voltage is a secondary circuit which is designed and protected so that under normal and single fault conditions the voltage between any two accessible parts does not exceed a safe value 42 2 V peak or 60 V DC There are no user replaceable fuses or user serviceable parts inside the unit If there is a physical problem with the unit that cannot be solved with problem solving actions in this guide contact the 3Com reseller from whom the equipment was purchased If the units are stackable only stack similar units WARNING Twisted Pair RJ45 data ports These are shielded RJ45 data sockets They cannot be used as telephone sockets Only connect RJ45 data connectors to these ports WICHTIGE SICHERHEITS INFORMATIONEN WARNUNG Warnungen enthalten Anweisungen die Sie zu Ihrer pers nlichen Sicherheit befolgen m ssen Bitte halten Sie sich daran Bitte lesen Sie die folgenden Informationen aufmerksam ehe Sie die Einheit installieren Lassen Sie bei Installation und Abbau besondere Vorsicht walten Stellen Sie die Einheit in der N he einer Stromquelle auf und achten Sie darauf da diese zug nglich ist Verwenden Sie immer den mitgelieferten Netzadapter damit die Einhaltung nationaler und internationaler Sicherheitsnormen gew hrleistet ist Wurde kein Adapter mitgeliefert mu das verwendete Netzkabel den lokalen und nationalen Bestimmungen des Landes
137. s This call profile will remain under TempSvcProvider until you change the settings of these fields From the ISDN LAN Modem s home page click Manual Calling The Manual Call Control window appears In the table locate TempSvcProvider Click Place Call Enter the telephone number of the destination in the Telephone Number field Enter your User ID for the remote destination Enter your Password for the remote destination Enter the DNS address if the remote destination does not automatically provide an IP address Otherwise leave this field empty Specify how you would like the bandwidth allocated for this connection You can choose always to use just one B channel for this connection always to use two B channels for this connection that is always use Multilink PPP or you can specify that you only want the second B channel added when the first B channel reaches the threshold The threshold default is 60 To change the threshold default refer to Changing Data Call Parameters in Chapter 5 9 10 gt Participating in a Temporary Call Placing Multilink PPP Calls gt Receiving Calls 95 Specify the B channel rate Leave the B channel rate set to 64 Kbps unless your telephone company and the locations you will be connecting to only support 56 Kbps Click Make Call A message indicates that the call is being placed A B channel LED on the ISDN LAN Modem front panel illuminates green when a connectio
138. s de s curit de chaque port sont les suivantes Les ports identifi s par les tiquettes ISDN TNV Les circuits TNV Telecoms Network Voltage tension du r seau de t l communications sont des circuits qui en condition normale d utilisation transportent les signaux de t l communication a Les ports identifi s par les tiquettes LAN et Phone SELV Les circuits SELV Safety Extra Low Voltage tr s basse tension de s curit sont des circuits secondaires qui sont con us et prot g s pour qu en conditions normales et d faillance unique la tension n exc de jamais la valeur de s curit de 42 2 V en cr te ou 60 V DC m L appareil ne contient aucun fusible remplacable par l utilisateur ni aucune pi ce dont la maintenance peut tre effectu e par l utilisateur Si un probl me physique survient dans l appareil qui ne peut tre r solu au moyen des techniques de d pannage du pr sent manuel contactez le revendeur 3Com qui vous a fourni l appareil m Si vous disposez de plusieurs appareils empilables sur racks n empilez que les appareils similaires AVERTISSEMENT ports de donn es RJ45 a paires torsad es s agit de prises de donn es RJ45 blind es Elles ne peuvent tre utilis es comme prises de t l phone Elles ne doivent recevoir que les connecteurs de donn es RJ45 MEDIDAS DE SEGURIDAD IMPORTANTES ADVERTENCIA as advertencias contienen instrucciones que es preciso seguir al pie de la letra para evi
139. s established enter the primary DNS IP address of your ISP in the Primary field If there is a secondary address enter it in the Secondary field Specify Bandwidth Allocation a Use one B channel When selected one B channel is used to connect to this service provider Add second B channel as required When selected the second B channel is added when the first B channel reaches a certain threshold The threshold default is 60 To change the threshold default refer to Changing Data Call Parameters The second B channel is temporarily removed when you place or answer another call Use two B channels When selected both B channels are used to connect to this service provider that is always use Multilink PPP Note that this prevents another call data or voice to be placed or received as there is no available bandwidth that is the second B channel cannot be temporarily removed Under Miscellaneous specify the B channel rate Leave the B channel rate set to 64 Kbps unless your telephone company and the locations to which you will be connecting require 56 Kbps Under Miscellaneous leave the default NAT enabled unless you are certain you want to disable it With NAT enabled the ISDN LAN Modem translates IP addresses between the computers on the LAN and the ISP allowing all LAN users access to a single ISP Only disable NAT when static IP addresses are provided by your ISP for users on the LAN Under Miscellaneous
140. s that the configuration is locked To unlock the configuration do the following Click Continue The Enter Password window appears 2 Enter your password to access the ISDN LAN Modem configuration program 3 Click Submit The ISDN LAN Modem main configuration page appears Configuring the ISDN LAN Modem from a Remote Location To access and make configuration changes to your ISDN LAN Modem remotely you will need an ISDN modem a Web browser and any PPP dialer software such as Windows 98 95 s Dial Up Networking installed on your local computer An example using Windows 98 95 Dial Up Networking follows Click Start Programs Accessories Windows 98 users select Communications and select Dial Up Networking Double click Make New Connection The Make New Connection window opens Enter a name to designate this dial up profile such as LAN Modem 4 Select the ISDN modem attached to your local PC from the drop down list box and click Next The Make New Connection phone number window will open Enter the phone number of the remote ISDN LAN Modem to which you wish to connect and click Next Click Finish to complete the Make New Connection setup You will now have a new icon for the connection just created 7 Right click this new icon with your right mouse button and choose Properties 8 Click the Server Type tab 10 11 12 13 14 For Windows 95 users PPP Windows 95 Windows NT 3 5 Internet shoul
141. supply hardware if any are warranted for one 1 year 3Com s sole obligation under this express warranty shall be at 3Com s option and expense to repair the defective product or part deliver to Customer an equivalent product or part to replace the defective item or if neither of the two foregoing options is reasonably available 3Com may in its sole discretion refund to Customer the purchase price paid for the defective product All products that are replaced will become the property of 3Com Replacement products may be new or reconditioned 3Com warrants any replaced or repaired product or part for ninety 90 days from shipment or the remainder of the initial warranty period whichever is longer SOFTWARE 3Com warrants that each software program licensed from it will perform in substantial conformance to its program specifications for a period of ninety 90 days from the date of purchase from 3Com or its authorized reseller 3Com warrants the media containing software against failure during the warranty period No updates are provided 3Com s sole obligation under this express warranty shall be at 3Com s option and expense to refund the purchase price paid by Customer for any defective software product or to replace any defective media with software which substantially conforms to applicable 3Com published specifications Customer assumes responsibility for the selection of the appropriate applications program and associated referen
142. t Applications and Games Support for applications that use the User Datagram Protocol UDP and the Transmission Control Protocol TCP The UDP protocol is used primarily by Internet games Look for the latest list of Internet applications and games that interoperate with the ISDN LAN Modem at http www remoteaccess 3com com support docs lanmodem 24 CHAPTER 1 INTRODUCTION oe they e rr gt ISDN LAN MODEM FUNCTIONALITY DESCRIPTION This chapter provides a description of the key functionality of the ISDN LAN Modem It includes the following topics Connection Types a Call Routing Protocol and IP Address Translation Understanding Multilink PPP and Bandwidth on Demand a Understanding Dynamic Bandwidth Allocation Understanding PPTP For a basic understanding of ISDN and networking refer to Appendix A Connection Types WAN Side Connection The ISDN LAN Modem provides WAN side and LAN side connections The ISDN LAN Modem allows users to connect to a WAN using either of the following methods at one time Two separate connections to two different locations one per B channel One high speed Multilink PPP connection to a single location combines both B channels Once a WAN connection is established up to 25 users can share that connection and access the same location simultaneously If you desire you can also restrict access to certain users An example of 10 workstation connect
143. t panel LEDs show whether or not the unit is functioning properly and indicate the status of the activity over the 10BASE T and ISDN ports Table 4 Front Panel LED Indicator Definitions LED Color Description Alert Amber Operational Status Lit during power on self test diagnostic or after pressing the reset button Off indicates the unit has passed the diagnostic tests and is working properly Flashes four times per second if one or more of the diagnostics have failed or after the unit is placed in firmware download mode and is waiting for a firmware upgrade POWER Green Power Indicator Remains lit as long as power is supplied to the unit Front Panel LED Description 37 Table 4 Front Panel LED Indicator Definitions LED Color Description ISDN OK B1 B2 TX Coll Ports 1 4 Green Amber or Green Green Amber Green D Channel Status Indicates the status of the ISDN physical network interface and D channel Remains lit once the physical ISDN interface and D channel signaling are synchronized Off indicates the physical ISDN interface is not synchronized or is disconnected Flashes when the physical interface attempts synchronization or when the ISDN D channel parameters have changed B1 B2 Channel Activity Green indicates a data call in progress Amber indicates a voice call in progress If a call is in a dialing state the LED flashes When the call is disconnected the LED go
144. tandard Windows 98 and Windows 95 operating systems To set up TCP IP for the ISDN LAN Modem do the following You may be prompted for your installation disks or CD ROM 1 From the Control Panel double click Network The Network dialog box appears Network BEI Configuration Identification Access Control The following network components are installed E Client for Microsoft Networks E Client for Netware Networks 3Com Fast EtherLink XL 10 100Mb TX Ethernet Adapter Dial Up Adapter IPX SPX compatible Protocol gt 3Com Fast EtherLink XL xj Add Remove Properties Primary Network Logon Client for NetWare Networks y Eile and Print Sharing Description Personal Web Server enables you to share your files over the Internet Figure 19 Network Dialog Box 2 Click Add The Select Network Component Type dialog box appears e CHAPTER 4 SETTING UP TCP IP FOR WINDOWS AND MACINTOSH Select Network Component Type Figure 20 Select Network Component Type Dialog Box 3 Select Protocol and then click Add The Select Network Protocol dialog box appears Select Network Protocol Y Banyan IPX SPX compatible Protocol Y Digital Equipment DEC Microsoft 32 bit DLC Microsoft DLC NetBEUI TCP IP Figure 21 Select Network Protocol Dialog Box From the Manufacturers list box select Microsoft and then from the Network Protocols list box select TCP IP 5 Click OK
145. tar da os personales Antes de instalar la unidad lea atentamente la siguiente informaci n m Tome todas las precauciones necesarias a la hora de instalar o desinstalar la unidad m Coloque la unidad cerca de una toma de corriente de f cil acceso m Utilice el adaptador de corriente suministrado con la unidad de este modo se asegura el pleno cumplimiento de las normas de seguridad nacionales e internacionales En caso de no recibir un adaptador con la unidad deber utilizar un cable que responda a los requisitos estipulados por la normativa local o nacional pertinente y que no contravenga la garant a de seguridad del producto consulte la secci n relativa a este punto al final de esta gu a m Desenchufe el adaptador antes de mover la unidad La nica forma de interrumpir el paso de corriente consiste en desenchufar el adaptador de la unidad o de la toma de corriente m No deben conectarse a los puertos de la unidad aparatos que no cumplan los requisitos de la interfaz en uso Los puertos de la unidad son de los siguientes tipos a Puertos con etiqueta ISDN TNV TNV Telecoms Network Voltage es un circuito que en condiciones normales transmite se ales de telecomunicaci n Puertos con etiqueta LAN o Phone SELV SELV Safety Extra Low Voltage es un circuito secundario dise ado para que el voltaje entre dos puntos accesibles no exceda l mites seguros 42 2 V punta 6 60 V CC en circunstancias normales o de fallo simple
146. tations on your LAN with static IP addresses and other workstations on the same LAN with dynamic IP addresses it is recommended that you reserve the static IP addresses in the DHCP server to ensure that they are not dynamically assigned to another workstation Reserve DHCP addresses as follows From the ISDN LAN Modem main page click the Workstations graphic The Workstation Selection window appears From the Workstations drop down list box select the Workstation for which you would like to reserve the IP address on the DHCP server 3 Check the box labeled P Address Statically Configured on Workstation 4 Click Submit If you want to password protect the configuration profile of the ISDN LAN Modem refer to Locking and Unlocking the Configuration Selective Password Protection You can set up partial password protection so that workstations may access only the manual calling page allowing them to place and receive calls All other WebWizard pages remain inaccessible Note that enabling selective password protection also allows all users to access the LAN Modem main page which they can use to navigate to the Manual Calling page If users attempt to access any other page except Manual Calling or online help the LAN Modem prompts the user to enter a password To set up selective password protection do the following From the ISDN LAN Modem main page click the Password button 2 Check the box labeled Disable password pro
147. tection for Manual Calling screen 3 Click Submit All workstations are now able to access the Manual calling screen by clicking the Manual Calling button from the main configuration screen For instructions about placing manual calls refer to Chapter 8 Placing Receiving and Disconnecting Calls Changing Your Password To change the password you defined as part of the initial setup to restrict access to the ISDN LAN Modem do the following From the ISDN LAN Modem main page click the Password button 2 Enter your new password in the Password field 3 Enter your new password in the Password repeat field to verify the new password Click Submit Once a password is configured an automatic protection feature is invoked if the WebWizard configuration program is open and there is inactivity for at least five gt Configuring ISDN Line Parameters 85 minutes After 5 minutes of inactivity you are locked out of the Web Wizard configuration program The password must be entered to gain access If you forget your password you can reset the ISDN LAN Modem to the factory default which allows you to enter a new password Note that when the ISDN LAN Modem is restored to the factory default settings you will lose your configuration which includes all service provider profiles and ISDN parameters For instructions refer to Chapter 9 Resetting the ISDN LAN Modem Configuring ISDN Line Parameters What is MSN
148. ternet Explorer Browser If you already have a version of the Internet Explorer Web browser installed and you would like to install a later customized version you should first uninstall the previous version Also while installing the later version you may be asked to replace the older files It is recommended that you do so To install the custom web browser do the following Insert the 3Com Companion Programs CD ROM into your computer s CD ROM drive 2 From the main screen click Internet Explorer 3 Follow the instructions on the screen Installing Future Releases of Internet Explorer Once you install the ISDN LAN Modem custom Internet Explorer Web browser you can install future release of standard Internet Explorer while maintaining the links listed under Favorites However any customized buttons may be removed from the newer version ISDN LAN MODEM FACTORY DEFAULTS Table 16 LAN Parameters LAN Modem IP Address Subnet Mask DHCP Server Call Routing Calls to Telephone 1 Calls to Telephone 2 Data Calls CLIR Use Data Compression Use NAT Bandwidth on Demand Connect Disconnect Threshold for 2nd B channel Connect Delay Disconnect Delay Supplementary Voice Services Call Waiting CLIR Data Call Timeout Values Minimum Call Duration Automatic Data Call Inactivity Disconnect Manual Data Call Inactivity Disconnect TEI Value ISDN LAN Modem Factory Defaults 192 168 1 1 255 255 255 224 Enabled
149. th regard to such date data on and after January 1 2000 and Customer notifies 3Com before the later of April 1 2000 or ninety 90 days after purchase of the product from 3Com or its authorized reseller 3Com shall at its option and expense provide a software update which would effect the proper performance of such product repair such product deliver to Customer an equivalent product to replace such product or if none of the foregoing is feasible refund to Customer the purchase price paid for such product Any software update or replaced or repaired product will carry a Year 2000 Warranty for ninety 90 days after purchase or until April 1 2000 whichever is later OBTAINING WARRANTY SERVICE Customer must contact a 3Com Corporate Service Center or an Authorized 3Com Service Center within the applicable warranty period to obtain warranty service authorization Dated proof of purchase from 3Com or its authorized reseller may be required Products returned to 3Com s Corporate Service Center must be pre authorized by 3Com with a Return Material Authorization RMA number marked on the outside of the package and sent prepaid and packaged appropriately for safe shipment and it is recommended that they be insured or sent by a method that provides for tracking of the package The repaired or replaced item will be shipped to Customer at 3Com s expense not later than thirty 30 days after 3Com receives the defective product Dead or De
150. the power adapter provided in the package for your geographic area To install the ISDN cable Connect the RJ 45 8 pin connector end of the ISDN cable to the port labeled ISDN on the back panel as shown in Figure 13 Figure 13 ISDN Cable Connection Connect the opposite end of the ISDN cable into an ISDN wall box that contains an NT1 if you have the S T version of the ISDN LAN Modem If you have the U version you do not need an NT1 one is provided in the LAN Modem simply plug the opposite end of the ISDN cable into the wall outlet Installing the ISDN LAN Modem 39 Connecting toa To connect a computer to the ISDN LAN Modem do the following 10BASE T Ethernet Port 1 Insert one end of the 10BASE T Ethernet cable into one of the four LAN ports on the back of the ISDN LAN Modem as shown in Figure 14 Figure 14 10BASE T Ethernet LAN Connection 2 Insert the opposite end of the cable into your computer s 10BASE T Ethernet port CAUTION You should only have one computer physically connected to the ISDN A LAN Modem during configuration Once you complete the configuration process connect any other computers you would like to have on the LAN and then power cycle each computer If the newly added computers cannot communicate with the ISDN LAN Modem refer to Evaluating Symptoms and Solutions in Chapter 9 40 CHAPTER 3 HARDWARE DESCRIPTION AND INSTALLATION Connecting to Another Ethernet Hub You can connect to another
151. this service provider Add second B channel as required When selected the second B channel is added when the first B channel reaches a certain threshold The threshold default is 60 To change the threshold default refer to Changing Data Call Parameters in Chapter 6 The second B channel is temporarily removed when you place or answer another call Use two B channels When selected both B channels are used to connect to this service provider that is always use Multilink PPP Note that this prevents another call data or voice to be placed or received as there is no available bandwidth that is the second B channel cannot be temporarily removed 15 16 17 Configuring a Static IP Address on the ISDN LAN Modem Before You Begin 63 Specify the B channel rate Leave the B channel rate set to 64 Kbps unless your telephone company and the locations to which you will be connecting only support 56 Kbps Click Continue A call is launched to your ISP A congratulations message appears when you successfully connect to your ISP This verifies the correct configuration of your ISDN line and ISP connection This configuration covers the typical parameters needed to connect to your ISP There are additional parameters for this ISP connection which have been set to a typical default These parameters include Domain Name Compression NAT and WAN Link IP Address In addition you can enter a second telephone for connection
152. throughput Connection performance is affected by each device in the chain Therefore the slowest link in the chain determines the maximum throughput On the LAN side computers on a typical network can communicate with each other at up to 10 Mbps When dialing up to a long distance location using ISDN you can establish a network connection speed of up to 128 Kbps without compression or up to 384 Kbps with compression If you are dialing into the Internet the speed of the router providing access must also be considered In addition the Internet itself may have speed limitations 116 APPENDIX A NETWORKING PRIMER USING THE CUSTOM WEB BROWSER An Internet Explorer Web browser tailored for use with your ISDN LAN Modem is provided on the 3Com Companion Programs CD ROM You may prefer to use this browser as it has been customized for your ISDN LAN Modem as shown in Figure 57 making it easier to use If you use a different Web browser make sure that it supports frames Netscape 3 0 and later and Internet Explorer 3 0 and later both support frames E MainPage Microsoft Internet Explorer provided by 3Com Corporation File Edit View Go Favorites Help ee ee a Back Forverd Stop Refresh Home Search Favorites History Channels Address 8 http 192 168 1 1 MainPage htm Links A Configure Modem de Dial or Hang Up El Register Modem A Updates de User Guide P LA Fullscreen Mail Jumps to Jumps to Jumps to
153. toms and solutions 102 monitoring LEDs 100 U UDP support for Internet games 23 unlocking the configuration 86 V voice call routing changing 82 understanding 82 W warranty 23 Y year 2000 compliance 121
154. ur gleichartige Einheiten verwenden WARNUNG Twisted Pair RJ45 Datenschnittstellen Dies sind abgeschirmte RJ45 Schnittstellen die nicht f r Telefonsignale verwendet werden k nnen Schlie en Sie an diesen Schnittstellen nur RJ45 Datenstecker an IMPORTANT NOTICE DE SECURITE AVERTISSEMENT es avertissements pr sentent des instructions que vous devez suivre tr s attentivement pour votre s curit personnelle Veuillez lire les informations suivantes attentivement avant l installation de l appareil m Soyez tr s prudents pendant toute la dur e de l installation et du d placement de l appareil m Placez l appareil pr s d une prise murale qui doit rester accessible tout instant m Utilisez l adaptateur lectrique fourni avec l appareil pour garantir la conformit totale aux normes de s curit nationales et internationales Si aucun adaptateur n est fourni le c ble lectrique utilis doit tre conforme aux normes locales et nationales du pays et ne doit en aucun cas contrevenir aux normes de s curit d utilisation de l appareil veuillez consulter la section Approvals Agr ments au dos du pr sent manuel m D connectez l adaptateur lectrique avant de d placer l appareil L alimentation ne peut tre d connect e de l appareil qu en retirant l adaptateur de l appareil ou de la prise de courant m Ne connectez l appareil qu en conformit avec les exigences techniques des ports de connexion de l appareil Les norme
155. uter Software Clause at 48 C FR 52 227 7013 3Com Corporation 5400 Bayfront Plaza Santa Clara California 95052 8145 For civilian agencies Restricted Rights Legend Use reproduction or disclosure is subject to restrictions set forth in subparagraph a through d of the Commercial Computer Software Restricted Rights Clause at 48 C F R 52 227 19 and the limitations set forth in 3Com Corporation s standard commercial agreement for the software Unpublished rights reserved under the copyright laws of the United States If there is any software on removable media described in this documentation it is furnished under a license agreement included with the product as a separate document in the hard copy documentation or on the removable media in a directory file named LICENSE TXT If you are unable to locate a copy please contact 3Com and a copy will be provided to you Unless otherwise indicated 3Com registered trademarks are registered in the United States and may or may not be registered in other countries 3Com and OfficeConnect are registered trademarks of 3Com Corporation 3ComFacts is a service mark of 3Com Stac and LZS are registered trademarks and Hi fn is a trademark of Stac Inc Pentium is a registered trademark of Intel Windows and Windows NT are registered trademarks of Microsoft Macintosh is a registered trademark of Apple Computer Corporation IBM is a registered trademark of International Business Machines Corporation
156. w the last entry 5 Choose File and Close 6 When asked to save your changes do so by choosing Save You may want to rename this configuration so that your previous configuration is not overwritten For Windows 3 11 Users Insert the 3Com Companion Programs CD ROM into your PC 2 Start the CD and then double click MS_TCP IP Follow the instructions If there are multiple options to choose from leave the default value From the Program manager click Network From the Network group box click Network Setup From the Network Setup dialog box click the Drivers button From the Network Drivers dialog box click Add Protocol Select Microsoft TCP IP 32 and then click OK to install Once the files have been copied browse for directory where you installed MS_TCP IP 9 Select MS_TCP IP and then click Setup 10 Select Yes for Enable Automatic DHCP Configuration on QOU A W 11 If you want to enter a name for you workstation enter it in the Host Name field and then click OK 12 Restart your PC to allow the changes to take effect You are now ready to install your ISDN LAN Modem Refer to Configuring the ISDN LAN Modem for the Typical Configuration to continue Configuring the ISDN LAN Modem for the Typical Configuration gt Before You Begin 59 To configure the ISDN LAN Modem for the typical configuration do the following If you are using static IP addressing you may need the IP address which you recorded previous
157. way IP address you wrote down as part of the previous step and then click Add 6 Click OK to close the TCP IP Properties box 7 Click OK to close the Network control panel Bb WN ui You are asked to restart your computer Click OK For Windows NT 4 0 Users From the Start menu select Settings and then Control Panel Double click Network and then select the Protocols tab Highlight TCP P and then click Properties Click the P Address tab and then select the Ethernet card associated with the ISDN LAN Modem from the Adapter drop down list box Write down the IP address in the Installed Gateways box Click the DNS tab 58 CHAPTER 5 CONFIGURING THE ISDN LAN MODEM 7 Click Add 8 In the TCP IP DNS Server box enter the gateway IP address you wrote down previously and then click Add 9 Click OK to close the Microsoft TCP IP Properties dialog box 10 Click OK to close the Network Control Panel box You are asked to restart your computer 11 Click OK For Macintosh Users 1 From the Apple menu open Control Panels Double click TCP IP 2 Choose Ethernet from the Connect via drop down list box if not already chosen The Configure drop down list box should be set to Manually if you are on a static network 3 Note the series of numbers entered in the Router address box Write this number down 4 Enter this number into the Name server addr box If you already have existing address es listed add the new address belo
158. y also need a phone port adapter To install an analog device Insert one end of an RJ 11 cable into one of the two analog ports labeled Phone on the back of the ISDN LAN Modem as shown in Figure 16 Figure 16 Analog Equipment Connection Insert the other end of the RJ 11 cable into the appropriate RJ 11 port on the analog device If you have another analog device to install repeat steps 1 and 2 CAUTION The ISDN LAN Modem is designed to operate with touch tone telephones that collectively do not exceed a ringer equivalence number REN of three per analog phone port The ISDN LAN Modem is designed to provide power 25 mA loop current per phone port and ringing for these devices on up to 67 meters 200 feet of AWG 26 or heavier AWG wiring Although the ISDN LAN Modem may function satisfactorily at longer cable distances with more than two attached telephones proper operation at longer cable distances is not guaranteed in all situations Specialized telephone equipment such as speaker phones that draw large amounts of power may not work on the ISDN LAN Modem s Phone port Because these devices do not conform to the power specification of the touch tone telephone standard their operation is not guaranteed 42 CHAPTER 3 HARDWARE DESCRIPTION AND INSTALLATION Installing the Power To install the power cable Cable 1 Connect the ISDN LAN Modem power module cable to the 10 18 VDC power connector on the back panel of the ISDN LAN

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