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Understanding Multilink PPP and BACP/BAP

21

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 that 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
Modem’s 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

198.6.1.1

198.6.1.1

198.6.1.1

192.168.1.5

192.168.1.2

19

2.168.1.4

OfficeConnect® ISDN LAN Modem

192.168.1.1

ISDN BRI line

Internet/Intranet or

online service

PWR

ISDN

B1 B2

3

Com

Alert

Tx Coll

1

2 3 4

LAN STATUS

Rob's PC
192.168.1.2

Laura's PC
192.168.1.3

Buddy's PC
192.168.1.4

Sally's PC
192.168.1.5

198.6.1.1

IP address
assigned by ISP

Translates PC IP
addresses to IP
address assigned
by ISP

ISDN BRI line

Public telephone

network

OfficeConnect™

ISDN LAN Modem

«
...
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19
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Содержание OfficeConnect Series

Страница 1: ... http www 3com com OfficeConnect ISDN LAN Modem 3C892 User Guide Part No 984 000023 3 Published February1999 ...

Страница 2: ...a and Computer Software Clause at 48 C F R 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 Corporatio...

Страница 3: ...rate Connections to Different Locations 18 One High Speed Connection to a Single Location 19 Call Routing Protocol and IP Address Translation 20 Placing a Call to a Previously Defined Destination 20 Call Routing While No Other Calls Are Connected 20 Call Routing While One Call Is Already Connected 21 Understanding Multilink PPP and BACP BAP 21 What is Multilink PPP 21 What is BACP BAP 21 Multilink...

Страница 4: ...g Windows 98 and Windows 95 33 TCP IP Setup Using Windows NT 4 0 36 TCP IP Setup Using Mac OS 7 6 or later 39 TCP IP Setup Using Windows 3 11 40 Setting Up TCP IP Using MS TCP 40 5 CONFIGURING THE ISDN LAN MODEM Typical Configuration 43 Before You Begin 43 You Should Have Done This 43 You Should Have This Information 44 Determine Whether You Use Dynamic or Static IP Addresses 44 Setting Up Your Co...

Страница 5: ...Subnet Mask 66 Local Domain Name 66 Enable DHCP Server 66 Enable NetBIOS Filtering 66 Configuring the LAN Parameters 67 Changing Data Call Parameters 67 Understanding Data Call Parameters 68 Minimum Call Duration 68 Disconnecting an Automatic Data Call 68 Disconnecting a Manual Data Call 68 Connect Disconnect Threshold for the Second B Channel 69 Configuring the Data Call Parameters 69 Changing Vo...

Страница 6: ...g Among Service Providers 85 Placing a Call Manually 86 Placing a Call Manually to an Existing Service Provider 86 Placing a Call Manually to a Temporary Service Provider 86 Participating in a Temporary Call 87 Placing Multilink PPP Calls 87 Receiving Calls 87 Receiving Data Calls 87 Receiving Voice Calls 88 Distinctive Ringing 88 Disconnecting Data Calls 88 Disconnecting Data Calls Manually 88 Di...

Страница 7: ...ng a Telephone 100 Reviewing Statistics 101 Understanding System Statistics 101 Understanding ISDN Information 102 Understanding Current Call Information 102 Understanding Last Call Information 103 Understanding Service Provider Information 104 A NETWORKING PRIMER B USING THE CUSTOM WEB BROWSER C ISDN LAN MODEM FACTORY DEFAULTS D ISDN LAN MODEM SPECIFICATIONS Year 2000 Compliance 116 E ORDERING IS...

Страница 8: ...odem 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...

Страница 9: ...l 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...

Страница 10: ... Internet or to a remote office while continuing to network locally Applications The primary application for the ISDN LAN Modem is Local networking with shared access to the Internet and or a remote office LAN Local Networking with Access to the Internet Users can share access to the Internet while continuing to network locally Figure 1 Local Networking with Access to the Internet OfficeConnect IS...

Страница 11: ...ote office and the Internet while continuing to network locally Figure 3 Local Networking with Access to a Remote Office and the Internet OfficeConnect ISDN LAN Modem Public telephone network Remote office LAN ISDN BRI line PWR ISDN B1 B2 3 Com Alert Tx Coll 1 2 3 4 LAN STATUS OfficeConnect ISDN LAN Modem OfficeConnect ISDN LAN Modem Public telephone network Remote office LAN ISDN BRI line Interne...

Страница 12: ...harge for a data call Connectivity ISDN Basic Rate U interface Built in four port 10BASE T 10 Mbps Ethernet hub Up to 25 users can be supported by connecting to an external eight port hub Two analog voice ports Preferred Provider support which allows simultaneous connections to two different ISPs Routing IP Routing Dynamic or static IP addresses supplied by the ISP WAN side WAN access for up to 25...

Страница 13: ...ring machines and analog modems Flexible call routing to the two analog ports Caller ID name and telephone display supports Bellcore GR 30 CORE and SR TSV 002476 standards Caller ID Blocking Call Waiting Call Conference Three way calling Call Transfer Call Forward Distinctive Ringing Voice Mail Protocols IETF PPP RFC 1661 1662 1663 IETF Multilink PPP RFC 1990 PPTP Point to Point Tunneling Protocol...

Страница 14: ...es Firmware posted on 3Com s Web site Diagnostics LED status display Statistics display Warranty Lifetime Limited Warranty refer to the back of this User Guide for details Internet 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...

Страница 15: ...16 CHAPTER 1 INTRODUCTION ...

Страница 16: ...onnect to the LAN Modem s built in Ethernet hub or up to 25 users may connect to the LAN Modem via an external user supplied hub enabling users to share files and printers and to use Internet email An example of ten workstation connections is shown in An example of 10 workstation connections is shown in Figure 4 Figure 4 ISDN LAN Modem LAN Connection with 10 Workstations An example of a single con...

Страница 17: ...ngle 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 Two Separate Connections to Different Locations An ISDN BRI line has two B channels for transmitting data or voice Because each B channel is independent you can connect to two dif...

Страница 18: ...Internet provider and over the single high speed connection Figure 8 Shared Connection to the Same Location OfficeConnect ISDN LAN Modem Public telephone network Remote office LAN Combining both B channels with Multilink provides a single 128 Kbps connection PWR ISDN B1 B2 3 Com Alert Tx Coll 1 2 3 4 LAN STATUS 64 Kbps B1 64 Kbps B2 128 Kbps B1 B2 Without compression Jerry s PC Elaine s PC George ...

Страница 19: ...t 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 ...

Страница 20: ...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 ...

Страница 21: ...gured 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 you...

Страница 22: ... Side of the Tunnel 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 3Com s NETBuilder PathBuilder and Total Control Hub as well as Microsoft s 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...

Страница 23: ... server side are configured you are ready to create a tunnel The steps required for creating a tunnel vary depending on which 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 2 or higher double click the phone book entry for the VPN Once you attemp...

Страница 24: ...on of the Internet Explorer Web browser installed and would like to install a later version you should first uninstall the previous version If you are asked to replace the older files it is recommended that you do so A personal computer with TCP IP and Ethernet connectivity that meets UL standards in the United States or is certified to CSA standards in Canada For a PC a 386 or higher processor is...

Страница 25: ...ace 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 Amber or Green 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 L...

Страница 26: ...ce Port Connect the ISDN cable to this port Installing the ISDN LAN Modem This section describes how to do the following Install the ISDN cable Connect to a 10BASE T Ethernet LAN Install analog equipment Install the power cable Before You Begin Before you begin you will need the following in addition to the ISDN LAN Modem which was provided in the package RJ 45 8 pin to RJ 11 6 pin cable labeled I...

Страница 27: ... ISDN LAN Modem Never connect the ISDN LAN Modem ISDN port to a standard analog telephone jack or to an external NT1 device Make sure that the ISDN cable is connected directly to the ISDN jack Connecting to a 10BASE T Ethernet Port To connect a computer to the ISDN LAN Modem do the following 1 Insert one end of the 10BASE T Ethernet cable into one of the four LAN ports on the back of the ISDN LAN ...

Страница 28: ... 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 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 15 Figure 15 10BASE T Hub to Hub Conn...

Страница 29: ...t 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 61 meters 200 feet of AWG 26 or heavier AWG wiring Although the ISDN LAN Modem may function...

Страница 30: ...dem can communicate with the workstation s If you do not have TCP IP installed and set up on your computer refer to Chapter 4 Setting Up TCP IP 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...

Страница 31: ...gether You can stack up to four units Stack small units above large units Figure 18 Using Stacking Clips 1 Place your existing unit on a flat surface Your clips fit in these positions on the side of the unit Small unit Use these holes 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 3 Keeping the front of the ...

Страница 32: ...the appropriate section TCP IP Setup Using Windows 98 and Windows 95 TCP IP Setup Using Windows NT 4 0 TCP IP Setup Using Mac OS 7 6 or later TCP IP Setup Using Windows 3 11 TCP IP Setup Using Windows 98 and Windows 95 TCP IP is provided as part of the standard 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 installa...

Страница 33: ...s Figure 21 Select Network Protocol Dialog Box 4 From the Manufacturers list box select Microsoft and then from the Network Protocols list box select TCP IP 5 Click OK 6 Select the Configuration tab The Network Configuration dialog box appears 7 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 ...

Страница 34: ...P 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 ...

Страница 35: ...ox 13 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 1 From the Control Panel double click Network The Network dialog box appears 2 Select the Protocols tab as shown in Figur...

Страница 36: ...ur network 6 You are then prompted to insert your installation CD ROM Insert the Windows NT 4 0 CD ROM and then click Continue 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 select the device you want to access remotely and then ...

Страница 37: ...e 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 ...

Страница 38: ...nd 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 Figure 30 TCP IP Dialog Box for Macintosh Computers 2 Select Ethernet or Ethernet built in from the Connect via drop down list box 3 If this LAN uses dynamic IP addresses select Using DHCP Server from the Configure drop do...

Страница 39: ...r hard drive 2 From the Program Manager click Network Figure 31 Program Manager Group Box 3 From the Network group box click Network Setup 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 M...

Страница 40: ... 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 ...

Страница 41: ...42 CHAPTER 4 SETTING UP TCP IP FOR WINDOWS AND MACINTOSH ...

Страница 42: ...dvanced 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 Figure 34 Main Steps for Typical Configuration Before You Begin Make sure that you have done the following You Should Have Done This Before you configure the ISDN LAN Modem you should have a...

Страница 43: ...ss If your computer has a dynamic IP address you may begin configuring the ISDN LAN Modem 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 ...

Страница 44: ... 3 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 O...

Страница 45: ...ddress below 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 1 From the Program manager click Network 2 From the Network group box click Network Setup 3 From the Network Setup dialog box click the Drivers button 4 From the Network D...

Страница 46: ...N 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 Figure 35 Initial SetUp Welcome Window 2 Click Continue A message box appears...

Страница 47: ...d 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 SPID Wizard window appears Figure 37 SPID Wizard Window ...

Страница 48: ...of your ISDN line When the SPID Wizard is done the ISP Wizard appears Figure 38 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 8 In the Name field enter the name of your ISP 9 In the Telephone Number field enter the...

Страница 49: ...Permissive or Data Over Voice Check with your telephone company and ISP to make sure that they support TollMizer 14 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 ...

Страница 50: ...r your password and then click Submit The ISDN LAN Modem s main configuration page appears 7 Click the ISP Wizard button You will see the information you entered previously 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 This configuration covers ...

Страница 51: ...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 if you prefer not to run the SPID Wizard Also sup...

Страница 52: ...re 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 Cont...

Страница 53: ...r profiles Associating service providers with workstations Configuring LAN parameters Changing data call parameters Changing voice call routing Reserving DHCP addresses Changing your password 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 ...

Страница 54: ...al 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 on the LAN can connect to that ISP and therefore the Internet You may want to review the profile for thi...

Страница 55: ...etwork parameters Figure 41 Direct Connection to a Private Network Setting Up a Connection to an ISP 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 Telephone number s you must dial to access this ISP User ID and password DNS IP address es This information is required only if...

Страница 56: ...window appears Figure 43 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 In the Telephone Number 1 field enter the telephone number you must dial in order to reach your ISP ...

Страница 57: ...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 10 Under Miscellaneous specify the B channel rate or select TollMizer 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 TollMizer makes a 56...

Страница 58: ... packets delivered to the specified default workstation 17 Click Submit 18 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 Setting Up a Connection to a Private Network This section d...

Страница 59: ...ders 61 Figure 44 Private Network Service Provider Selection Window 2 Select New Private Network from the drop down list box and then click Select The Private Network Parameters window appears Figure 45 Private Network Parameters Window ...

Страница 60: ...ted 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 sel...

Страница 61: ...re delivered to the default workstation 17 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 Enable Intelligent 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 ...

Страница 62: ...ange the association between service provider connections and a particular computer on the LAN do the following 1 From the ISDN LAN Modem main page click Workstations 2 From the Workstations drop down list box select the Workstation for which you would like to change the accessible service providers 3 Check or clear the boxes of the service providers you would like to associate or disassociate 4 C...

Страница 63: ...rkstation 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 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 Eth...

Страница 64: ...ng dynamic IP addresses if you have Windows 98 or 95 launch Winipcfg 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 aut...

Страница 65: ...s 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 This section describes how to change the defaul...

Страница 66: ... 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 0 note that you...

Страница 67: ...hput falls below 60 for 20 seconds a B channel is removed Configuring the Data Call Parameters To configure data call parameters do the following 1 From the ISDN LAN Modem main page click Data Call Parameters 2 Specify the minimum call duration 3 Specify the inactivity period for an automatic data call 4 Specify the inactivity period for a manual data call 5 If you specified that you want to use t...

Страница 68: ...oice calls to telephone number 2 are routed to Phone port 2 This default setting is illustrated in Figure 48 Voice calls to 732 555 1212 will only be routed to the telephone while voice calls to 732 555 1211 will only be routed to the fax machine Figure 48 Default Voice Call Routing Configuration Changing Voice Call Routing To change the voice call routing setting do the following 1 From the ISDN ...

Страница 69: ...CP server 3 Check the box labeled IP 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...

Страница 70: ...your configuration which includes all service provider profiles and ISDN parameters For instructions refer to Chapter 9 Resetting the ISDN LAN Modem Setting Up Your ISDN Line Manually This section describes how to set up your ISDN line manually During initial setup the SPID Wizard will already have configured these parameters for you unless you aborted the SPID Wizard If you aborted the SPID Wizar...

Страница 71: ... this field empty 6 In the Service Profile ID SPID 2 field enter the SPID associated with Telephone Number 2 7 Click Submit Note that supplementary voice services may also be configured from the ISDN Parameters page For more information refer to Chapter 7 Supplementary Voice Call Services If you want to password protect the configuration profile of the ISDN LAN Modem refer to Locking and Unlocking...

Страница 72: ...he other one can be on the 192 168 2 x network 2 Create a Private Network entry for the remote router No user name or password is needed You must use an arbitrary numbered WAN link that is different from the two networks 3 Run your web browser and enter the IP address of the remote LAN Modem as the URL Once an ISDN connection is established you can remotely manage your LAN Modem Configuring the IS...

Страница 73: ...7 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 18 Click Connect Your local computer will dial and establish a connection with your remote ISDN LAN Modem 19 Once your call has been established launch a Web browser on your local computer The Web browser attempts to load...

Страница 74: ...ant to have these services added To use Call Conference as well as Call Transfer your ISDN line must support Flexible Calling To use ISDN Call Waiting your ISDN line must support Additional Call Offering ACO Additional line configuration may also be required for Caller ID Blocking Call Forwarding and Voice Mail Check with your telephone company to determine whether or not these services are suppor...

Страница 75: ...ll have to have this capability added to your ISDN line For more information refer to Appendix E How to Configure Call Waiting To change the default setting do the following 1 Go to the ISDN LAN Modem s main configuration page http 3com oc lanmodem 2 Click ISDN Parameters 3 Locate Call Waiting Enable and then clear the check box for the port s for which you want Call Waiting disabled or check the ...

Страница 76: ...rings to indicate that there is 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 Disconnect a call on hold To disco...

Страница 77: ... powered on If the date and time is incorrect connect a workstation to the ISDN LAN Modem that has the correct date and time and then power cycle the ISDN LAN Modem Once it is powered up launch your Web browser and go to the ISDN LAN Modem s main page at http 3com oc lanmodem Caller ID Blocking To allow or prevent your telephone number from being displayed on a remote Caller ID device do the follo...

Страница 78: ...ant to enable Flexible Calling on telephone number 2 so that you can use Call Conference and Call Transfer from telephones connected to either ISDN LAN Modem phone port To enable or disable Flexible Calling do the following 1 Go to the ISDN LAN Modem s main configuration page http 3com oc lanmodem 2 Click ISDN Parameters 3 Next to Flexible Calling Enable select the telephone number check box es fo...

Страница 79: ... phone to abort the attempted call The phone will then ring indicating that the first call is on hold Answer the phone to reconnect to the first call What if I hear a dial tone when I attempt to conference all three parties A dial tone indicates that one of the parties has dropped their call Press and release the switch hook button to return to the previously active call You can then conference a ...

Страница 80: ... Message Service Enabled feature is disabled If it is enabled and you do not have Voice Mail on your ISDN line then callers always hear a ringing signal whenever that number is dialed whether or not you are on the line Call Forwarding Call Forwarding is a voice service provided by your telephone company that lets you forward your incoming calls to another telephone number To use this feature enter...

Страница 81: ...84 CHAPTER 7 SUPPLEMENTARY VOICE CALL SERVICES ...

Страница 82: ... 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...

Страница 83: ...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 Placing a Call Manually to a Temporary Service Provider To place a call manually to a service provider that has not been previously configured do the following Note that for this type of manua...

Страница 84: ...on 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 Placing Multilink PPP C...

Страница 85: ...em to distinguish between telephone 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 1 Go to the ISDN LAN Modem s main configuration...

Страница 86: ... is 15 minutes Bandwidth on Demand Parameters 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...

Страница 87: ...90 CHAPTER 8 PLACING RECEIVING AND DISCONNECTING CALLS ...

Страница 88: ... 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 I...

Страница 89: ...y 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 and SPIDs are configured accurately click ISDN Parameters from the WebWizard main page If your telephone numbers are configured correctly check with your telephone company...

Страница 90: ...your computer or application software or incompatible local or toll telephone company Carefully monitor the B1 and B2 LEDs while attempting a call These LEDs flash during call establishment and then remain green or amber once the connection is established If neither LED flashes make sure that your computer is turned on and operational If you are able to place a voice call but not a data call then ...

Страница 91: ...nnect 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 computer and then launch your Web browser The wrong cable may be connected to the LAN port on the ISDN LAN Modem and your PC Make sure you are using the 8 pin to 8 pin cable labeled Ethernet th...

Страница 92: ...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 Calls cannot be placed from analog equipment If you cannot place calls there may be a problem with the configuration of your ISDN line Calls from the analog port may be blocked Call the telephone com...

Страница 93: ...There is an interoperability mismatch between the local and remote applications Make sure that the local and remote data applications have communications capability and are properly configured Calls continue to reconnect or calls do not timeout and disconnect An application or LAN device is sending IP packets Go to Current or Last Call Statistics and check Reason for call coming up Or set the work...

Страница 94: ...Once it is powered up launch your web browser and go to the LAN Modem s main page at http 3Com oc lanmodem Cannot place a call over the LAN Modem s phone port using a Sportster PC Card modem Modem mistakes analog phone line for digital line Add the following command to the Sportster modem init string AT L0 Cannot place or receive two simultaneous voice calls Your ISDN line may not support simultan...

Страница 95: ...rd 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 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...

Страница 96: ...r specified by the workstation allowing the e mail to be sent Co ordinate the sending of your e mail with the other workstations or have each workstation use a different SMTP mail server Compression does not work Compression is not configured Go to the appropriate Service Provides page and ensure compression is enabled Compression negotiation was not successful Although compression is enabled on t...

Страница 97: ...ion 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 factory reset restores the ISDN LAN Modem 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 t...

Страница 98: ...information Understanding System Statistics The system statistics provided are as follows Table 7 Description of System Statistics System Statistics Description Product ID Displays product identification number such as 3C892 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 firm...

Страница 99: ...ata 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 th...

Страница 100: ...atically launched and the workstation knows the IP address Table 10 Current Call Information Description Current Call Information For This Call Type Description Last Call Information For This Call 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 in...

Страница 101: ...ollowing 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 Last Call Information For This Call Type Description Table 12 Service Provider Information Descript...

Страница 102: ...e linked together using some type of cabling Typically Ethernet cabling is used There are three main types of Ethernet networks 10BASE T 10BASE 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 Th...

Страница 103: ... 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 Figure 54 ISDN BRI Line Each BRI telephone line consists of two 64 Kbps bearer or B channels and one 16 Kbps D...

Страница 104: ...ur 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...

Страница 105: ...er 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...

Страница 106: ...our LAN network is static that is an IP address is assigned to your computer by your MIS department or ISP and manually configured What are numbered and unnumbered links 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...

Страница 107: ...110 APPENDIX A NETWORKING PRIMER ...

Страница 108: ... The following custom buttons provide direct links to ISDN LAN Modem configuration and information Web sites Configure Modem Click here to jump to the ISDN LAN Modem configuration main page 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 Mo...

Страница 109: ...ernet 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 1 Insert the 3Com Companion...

Страница 110: ...o Telephone 2 Routed to Phone Port 2 only Use Data Compression No Use NAT Yes Bandwidth on Demand Connect Disconnect Threshold for 2nd B channel 60 Connect Delay 10 seconds Disconnect Delay 20 seconds Supplementary Voice Services Call Waiting Enabled on port 1 Disabled on port 2 Caller ID Blocking Disabled Flexible Calling which includes Call Conference Hold Drop Transfer Enabled on telephone numb...

Страница 111: ...114 APPENDIX C ISDN LAN MODEM FACTORY DEFAULTS ...

Страница 112: ...d NT1 LAN Interface Ethernet IEEE 802 3 10BASE T standard Physical Dimensions Length 8 66 in 22 0 cm Width 5 44 in 13 8 cm Height 1 56 in 4 0 cm Environmental Operating Range Operating temperature 0 to 122 F 18 to 50 C Relative humidity Up to 90 noncondensing Power Input 120 VAC Output 13 VDC Ringer Equivalence Number REN 3 per analog phone port on up to 200 feet of AWG 26 or heavier AWG wiring Ph...

Страница 113: ...ar 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 ...

Страница 114: ...mber If You Place Your ISDN Order Through the Telephone Company To simplify the many features available for ISDN Bellcore has created several packages called ISDN Ordering Codes IOC for choosing an ISDN line configuration that best fits your needs Of these packages 3Com has two recommendations each of which allows you to take the fullest advantage of the supplementary voice features supported by t...

Страница 115: ...s adds Call Waiting and Dynamic Bandwidth Allocation to your second line Flexible Call Offering FCO this adds Call Conference Three Way Calling and Call Transfer to your second line Call Forwarding Variable this adds Call Forwarding to your second line Voice Mail if you are ordering V or EZ ISDN 1A this adds Voice Mail to your second line 4 If you would like outgoing Caller ID Blocking ask to have...

Страница 116: ...oned under them as described here Simultaneous Voice and Data on the Same Telephone Number Under U EZ ISDN 1 V and EZ ISDN 1A support for simultaneous voice and data on the same telephone number is not provided This means that while you are on a circuit switched data call you will not be able to place or receive a telephone or fax call on telephone number 2 A circuit switched data call always uses...

Страница 117: ...Only Caller ID is automatically supported on both telephone numbers under packages U EZ ISDN 1 V and EZ ISDN 1A There may be a charge for adding these services to your line Check with your telephone company If You Must Have Simultaneous Voice and Data Capability on Both Numbers If you must have the ability to place a circuit switched data and voice call simultaneously on the same telephone number ...

Страница 118: ...ntary voice features supported by the ISDN LAN Modem Call Conference Call Transfer and Call Forwarding which are available under U EZ ISDN 1 and V EZ ISDN 1A Note also that S1 does not support Voice Mail All three ordering codes S1 U EZ ISDN 1 and V EZ ISDN 1A provide automatic support for Caller ID on both Directory Numbers None of them provides automatic support for Caller ID Blocking If You Are...

Страница 119: ...Voice and Data Capability on Both Numbers Table of ISDN Ordering Code Capabilities Table 15 lists the exact supplementary voice services included under Capability Packages U EZ ISDN 1 V and EZ ISDN 1A 3Com s recommended ISDN Ordering Codes for use with the ISDN LAN Modem Table 15 Package U or EZ ISDN 1 Package V or EZ ISDN 1A Supplementary Voice Service Automatic Support on Telephone Number1 Autom...

Страница 120: ...y 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 Compression is a method of reducing the size of data packets without losing any information The ISDN modem au...

Страница 121: ...virtual single digital connection of 112 Kbps or 128 Kbps National ISDN An ISDN standard that enables consistency in ISDN service features across different vendors equipment and switches for North America NetBIOS Filtering NetBIOS filtering is a LAN Modem feature that helps prevent the LAN Modem from establishing unwanted calls by filtering the DNS requests made by NetBIOS that inadvertently cause...

Страница 122: ...es a 56 Kbps data call over a voice circuit allowing you to save the typical cost difference between a voice and data call Note that the destination you are calling must also support this feature UDP 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 therefo...

Страница 123: ...126 GLOSSARY ...

Страница 124: ... ISDN cable installation 28 manual configuration 72 L LAN parameters configuring 65 understanding 65 LEDs description 26 monitoring 92 locking the configuration 73 M manually 72 message service See also voice mail 83 Multilink PPP 21 placing calls 87 N NAT configuration for a private network 63 for an ISP 59 NetBIOS filtering 66 network interface 112 113 115 NT1 28 O online help 100 P password cha...

Страница 125: ...Internet games 15 unlocking the configuration 73 V voice call routing changing 70 understanding 70 voice features See supplementary voice services voice mail 83 See also message service 83 W warranty 15 Y year 2000 compliance 116 ...

Страница 126: ...s 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 produ...

Страница 127: ...FITS 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 REFUND OF THE PURCHASE PRICE PAID AT 3COM S OPTION THIS D...

Страница 128: ...lows a call is unanswered a busy tone is received a recorded tone is received CANADIAN NOTICE The Industry Canada label identifies certified equipment This certification means that the equipment meets certain telecommunications network protective operation and safety requirements The Department does not guarantee the equipment will operate to the users satisfaction Before installing this equipment...

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