Multitech ProxyServer MTPSR3-100 User Manual
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Multitech ProxyServer MTPSR3-100 User Manual

Internet access for lan-based users
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Internet Access for
LAN-Based Users
Model MTPSR3-100
User Guide

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Summary of Contents for Multitech ProxyServer MTPSR3-100

  • Page 1 Internet Access for LAN-Based Users Model MTPSR3-100 User Guide...
  • Page 2 Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this publication and to make changes from time to time in the content hereof without obligation of Multi-Tech Systems, Inc. to notify any person or organization of such revisions or changes.

  • Page 3: Table Of Contents

    Chapter 1 - Introduction and Description Introduction ... 6 Preview of This User Guide ... 6 Front Panel Description ... 8 Back and Side Panel Descriptions ... 9 Power Connector ... 9 Command Port Connector ... 9 Ethernet 10BaseT Connector ... 9 WAN Link Connectors ...
  • Page 4 Service ... 58 The Multi-Tech BBS ... 59 About Multi-Tech’s Internet Presence ... 60 About Ordering Accessories ... 60 About the Multi-Tech Fax-Back Service ... 60 Appendixes Appendix A - Cabling Diagrams ... 62 Appendix B - Script Commands ... 63 Appendix C - Regulatory Information ...

  • Page 5: Chapter 1 - Introduction And Description

    Chapter 1 - Introduction and Description...

  • Page 6: Introduction

    MTPSR3-100 User Guide Introduction Welcome to Multi-Tech’s new Serial ProxyServer, model MTPSR3-100, a single, secure gateway that provides multiple LAN users with high performance Internet access. The ProxyServer functions as a TCP/IP proxy server that resides on the outer edge of your firewall. It features a 10BaseT port for...
  • Page 7 ProxyServer at the factory, a statement of the limited warranty, information about our Internet presence, and space for recording information about your ProxyServer prior to calling Multi-Tech’s Technical Support. Chapter 1 - Introduction and Description...

  • Page 8: Front Panel Description

    MTPSR3-100 User Guide Front Panel Description The front panel contains LEDs that provide the status of the three channels, receive and transmit data indicators that define transmission of data to and from the channels and the LAN. The Collision and Link indicators provide status of the LAN, and the Boot indicator lights when the unit is rebooting.

  • Page 9: Back And Side Panel Descriptions

    Back and Side Panel Descriptions The cable connections for the ProxyServer are made at the back panel. In addition to the Power (PWR) connector, three groups of connectors are used on the ProxyServer: the Command Port (CMD), Ethernet (LAN) and WAN Links (WAN1, 2 and 3). The connectors are shown in Figure 1-3 and then described.

  • Page 10: Specifications

    MTPSR3-100 User Guide Specifications Protocols Ethernet Lan Interface WAN Interface Command Port WAN Links Electrical/Physical Requirement Point-To-Point Protocol (PPP), MultiLink Point-To-Point Protocol (MLPPP), and Serial Line Internet Protocol (SLIP) 10BaseT (twisted pair) RJ-45 connector 3 asynchronous Links (RJ-45 connectors) Single 19.2K bps asynchronous Command Port (uses a short...

  • Page 11: A Typical Internet Application

    A Typical Internet Application A typical Internet application is shown in Figure 1-4. In this example, the workstations are tied to the HUB (LAN) and the ProxyServer is connected to the HUB via an unregistered IP Address. The WAN ports were all configured to connect to an external Data Communications Equipment (DCE) device that was connected to the ISP during the loading of the software.
  • Page 12 MTPSR3-100 User Guide The ProxyServer supports scripting on any WAN ports that are configured as asynchronous. This feature can be very useful when some special handling has to be done on the WAN port (e.g., extra authentication, special communications equipment, etc.). On the WAN Setup dialog box, click on the Script button to create or edit a script for the WAN port.

  • Page 13: Chapter 2 - Installation

    Chapter 2 - Installation...

  • Page 14: Introduction

    Inspect the contents for signs of any shipping damage. If damage is observed, do not power up the unit, contact Multi-Tech’s Technical Support for advice (refer to place the ProxyServer in its final location and perform the Cabling procedures that follow.

  • Page 15: Cabling Your Proxyserver

    Cabling Your ProxyServer Cabling your ProxyServer involves making the proper Power (PWR), Ethernet (LAN), and WAN (WAN1, 2, 3) connections. Figure 2-2 shows the back panel connectors and the associated cable connections. The procedures that follow detail the process of making each connection. Note: The Command (CMD) port connection is used to connect a PC directly to the ProxyServer for local configuration and management.
  • Page 16 MTPSR3-100 User Guide...

  • Page 17: Chapter 3 - Software Loading And Configuration

    Chapter 3 - Software Loading and Configuration...

  • Page 18: Loading Your Proxyserver Software

    Chapter 5 - Client Insert the ProxyServer CD into your CD ROM drive. The CD is auto-detectable, so it starts automatically. It may take 10 to 20 seconds for the Multi-Tech Installation CD screen to appear. Note: If your system is not configured to support autorun, you can start the Installation CD by browsing the contents using My Computer (on your Windows desktop).
  • Page 19 Press Enter or click Next> to continue. Follow the on-screen instructions to install your ProxyServer software. Once the software is loaded, the Serial Proxy Server dialog box asks if you are configuring your ProxyServer over the LAN or directly connected to the Command port. If you are configuring the ProxyServer via your network, click OK to continue.

  • Page 20: Wizard Setup

    MTPSR3-100 User Guide Wizard Setup The Wizard Setup provides you with a process to input the basic configuration information needed to configure your ProxyServer. The Wizard Setup will guide you through the configuration of your LAN address and net mask information, and through the WAN, DHCP Server, and Domain Name Server configuration.

  • Page 21: Ip Wizard Setup

    IP Wizard Setup The IP Wizard Setup dialog guides you through the assignment of LAN and WAN IP address information. In addition, this dialog aids in determining whether or not your LAN is already running a DHCP Server (which automatically assigns client IP addresses). If not, and if you want to enable the built-in DHCP Server in the ProxyServer, you do so through this dialog.

  • Page 22: Wan Link(S) Wizard Setup

    MTPSR3-100 User Guide WAN Link(s) Wizard Setup The WAN Link(s) Wizard Setup guides you through two main processes. First you are instructed to enable (if you choose) MultiLink Point to Point Protocol (MLPPP), which binds the WAN ports together. And second, you are guided through the configuration of each WAN link, including the determination of the Data Communications Equipment (DCE) device type attached to each link (modem, DSU, etc.), and the configuration of the User Name, Password and Dial Number (all...
  • Page 23 During the reboot, the BT (Boot) LED will be on. Wait for the BT LED to go off before proceeding. Once the configuration has been written to the ProxyServer, you are returned to the Multi-Tech Installation CD screen. At this time your ProxyServer is fully operational. It is recommended that you verify that each client PC has an IP stack loaded, workstation IP address assigned, gateway pointed to the ProxyServer, and that the DNS name(s) supplied by the ISP are entered.
  • Page 24 MTPSR3-100 User Guide...

  • Page 25: Chapter 4 - Proxyserver Software

    Chapter 4 - ProxyServer Software...

  • Page 26: Introduction

    MTPSR3-100 User Guide Introduction This chapter describes the ProxyServer software with the intent to show you how to make changes to the configuration of your ProxyServer. The major configuration parameters were established during the loading of the software configuration utilities allow you to make changes to that initial configuration.

  • Page 27: Proxy Setup

    ProxyServer, and download setup information to the ProxyServer. Note: The Other button is not supported on the MTPSR3-100, and the Built In Test, and Print Console buttons, shown as active in the screen below, are only active when the ProxyServer is directly connected to the PC.

  • Page 28: Changing Ip Parameters

    The LAN network of the ProxyServer connects to a host of clients that will go through the proxy server in order to access servers on the internetwork. The Client Side Internet Parameters group defines the parameters that affect the ProxyServer’s ability to serve these clients.

  • Page 29: Changing Wan Port Parameters

    Chapter 4 - ProxyServer Software Changing WAN Port Parameters In order to change the WAN port parameters of Data Communications Equipment (DCE) devices connected to the WAN connectors on the ProxyServer, click on the WAN button in the Proxy Setup menu.

  • Page 30: Changing Internet Parameters

    MTPSR3-100 User Guide Changing Internet Parameters The Internet Setup dialog box is used to establish the Internet options for the WAN ports. Parameters for individual ports are configured through their respective tabs (i.e., WAN 1, WAN 2 or WAN 3). The Advanced tab allows you to configure various general parameters for a Point-to-Point Protocol (PPP).
  • Page 31 Chapter 4 - ProxyServer Software Clicking the Advanced tab brings up the parameters that affect all of the WAN links. The ProxyServer is capable of performing MultiLink Point-to-Point Protocol (MLPPP). MLPPP provides the opportunity for greater bandwidth by bundling WAN port links. Check MultiLink PPP (MLPPP) to enable this option if your ISP provides this support.

  • Page 32: Enabling The Dhcp Server

    MTPSR3-100 User Guide Enabling the DHCP Server The DHCP Server feature manages all IP address assignments within a workgroup, and is enabled in the DHCP Server Setup dialog box. To enable the DHCP Server, click on the DHCP Server button in the Proxy Setup menu.

  • Page 33: Adding Proxy Applications

    Chapter 4 - ProxyServer Software Adding Proxy Applications Certain software on your LAN may require a TCP or UDP port usage that is not currently supported by the ProxyServer. If this is the case, you will need to add the port usage using the Proxy Applications Configuration dialog.

  • Page 34: Enabling The Virtual Server

    For example, if the ISP assigns static address of 200.2.9.1, you can set up a virtual server so that any requests sent to 200.2.9.1 will access 192.168.0.102. To configure virtual servers, click on the Virtual Servers button in the Proxy Setup menu.

  • Page 35: Viewing Statistics

    Chapter 4 - ProxyServer Software Viewing Statistics The ProxyServer is capable of providing statistics for each port and for the whole system. These statistics can be useful for troubleshooting and management purposes. To access this information, click Statistics in the Proxy Setup menu. The Statistics dialog is displayed. From this menu, you can observe total system statistics such as Total Up Time, and Total Calls.

  • Page 36: Running Diagnostics

    MTPSR3-100 User Guide Running Diagnostics Proxy Setup lets you perform various hardware tests on the LAN and WAN links. The Diagnostics dialog box is displayed by clicking on the Built in Test button in the Proxy Setup dialog box. Diagnostic tests are performed if the Communication type of the Local Port configuration is set to COM Port.

  • Page 37: Chapter 5 - Client Setup

    Chapter 5 - Client Setup...

  • Page 38: Introduction

    MTPSR3-100 User Guide Introduction The information provided in this chapter enables multiple users to configure their Windows access the Internet through a ProxyServer. The procedures are divided into two sections, based on operating platform. The first section covers configuration of Windows 95/98 PCs, and the second section covers configuration of Windows NT (4.0 Workstation) PCs.

  • Page 39: Configuring In Windows 95/98

    Configuring in Windows 95/98 Perform the following steps to set up your Windows 95/98 PC: Note: All of the hardware and screens used in this section are intended as examples only. Please select options appropriate to your system. Click Start | Settings | Control Panel and then double click on the Network icon. The Network dialog appears displaying the Configuration tab, which shows all the components (i.e., clients, adapters, protocols, and any services) installed on your PC.
  • Page 40 MTPSR3-100 User Guide Check for binding between the adapter and TCP/IP. In the Network dialog, click on your Ethernet adapter to select it, then click Properties to display the Adapter Properties window. Click the Bindings tab, then if necessary click on the box to the left of TCP/IP so this entry is enabled (checked).
  • Page 41 Select TCP/IP, then click Properties to open the TCP/IP Properties window. Select the IP Address tab. The IP addressing method depends on how your ProxyServer’s DHCP Server option was configured. If DHCP Server is active, your IP address is issued automatically. If your network administrator did NOT activate DHCP Services on the ProxyServer, you will have to assign your IP address manually.
  • Page 42 MTPSR3-100 User Guide If DHCP Services are NOT active on the ProxyServer, you will have to manually enter your IP address. Select manual addressing by clicking the Specify an IP address option. The IP Address and Subnet Mask fields become active.
  • Page 43 Click on the Gateway tab. In the New gateway field, enter the IP address of the ProxyServer’s Ethernet port and click Add. The new gateway address appears in the list of Installed gateways. Chapter 5 - Client Setup...
  • Page 44 MTPSR3-100 User Guide Click on the DNS Configuration tab. Verify that Enable DNS is selected (checked). In the Host field, enter your user name (i.e., jerry). In the Domain field, enter your company’s domain name (usually the company name followed by one of the following extensions: .com, .edu, .gov, .org, .mil, or .net. For example, multitech.com).
  • Page 45 In the Network dialog, Click OK. You are returned to the Control Panel. Use the following checklist to record all the configuration settings for future use: IP Address (PC) IP Address (ProxyServer) Host (User Name) Domain DNS Server Address Network Adapter (Manufacturer/Model Number) Reboot the PC for changes to take effect.

  • Page 46: Installing Tcp/Ip (Win95/98)

    MTPSR3-100 User Guide Installing TCP/IP (Win95/98) If TCP/IP is not already installed, perform the following steps: Note: For this procedure you may need your Windows installation disks or CD ROM. In the Network dialog, click Add. The Select Network Component Type dialog is displayed with a list of installation options.

  • Page 47: Configuring In Windows Nt

    Configuring in Windows NT Perform the following steps to set up your Windows NT workstation PC: Note: All of the hardware and screen samples in this section are intended as examples only. Please select options appropriate to your network. Click Start | Settings | Control Panel and then double click on the Network icon. The Network dialog appears.
  • Page 48 MTPSR3-100 User Guide Click on the Bindings tab. In the Show Bindings for drop down list, select all adapters. A list of all adapters is displayed. Double click on the entry for your Ethernet card adapter to expand the list of bindings. Verify that TCP/IP Protocol is included in the bindings below your adapter.
  • Page 49 In the Network Protocols list select TCP/IP, then click Properties. The Microsoft TCP/IP Properties dialog is displayed. Click on the IP Address tab. The IP addressing method depends on how your ProxyServer’s DHCP Server option was configured. If DHCP Server is active, your IP address is issued automatically. If your network administrator did NOT activate DHCP Services on the ProxyServer, you will have to assign your IP address manually.
  • Page 50 MTPSR3-100 User Guide If DHCP Services are NOT active on the ProxyServer, you will have to manually enter your IP address. Select manual addressing by clicking the Specify An IP Address option. The IP Address and Subnet Mask fields become active.
  • Page 51 Click on the DNS tab. The Domain Name System (DNS) properties are displayed. In the Host Name field, type your user name (i.e., jerry). In the Domain field, enter your company’s domain name (usually the company name followed by one of the following extensions: .com, .edu, .gov, .org, .mil, or .net. For example, multitech.com).
  • Page 52 MTPSR3-100 User Guide Click Add. You are returned to the Microsoft TCP/IP Properties dialog, DNS tab, and the new address appears in the DNS Search Order list. Your network may have more than one DNS server, allowing you to use a secondary DNS server if the primary DNS server is not available.

  • Page 53: Installing Tcp/Ip (Winnt)

    Installing TCP/IP (WinNT) If TCP/IP is not already installed, perform the following steps: Note: For this procedure you may need your Windows NT installation CD ROM. While the Network dialog box is open, click Add. The Select Network Protocol dialog is displayed with a list of available protocol options. Highlight TCP/IP Protocol and click OK.
  • Page 54 MTPSR3-100 User Guide...

  • Page 55: Chapter 6 - Warranty, Service And Tech Support

    Chapter 6 - Warranty, Service and Tech Support...

  • Page 56: Introduction

    Service department, Technical Support group, and various Multi-Tech Internet resources. Limited Warranty Multi-Tech Systems, Inc. (“MTS”) warrants that its products will be free from defects in material or workmanship for a period of two years from the date of purchase, or if proof of purchase is not provided, two years from date of shipment.

  • Page 57: Tech Support

    Tech Support Multi-Tech has an excellent staff of technical support personnel available to help you get the most out of your Multi-Tech product. If you have any questions about the operation of this unit, call 1-800-972- 2439. Please fill out the ProxyServer information (below), and have it available when you call. If your ProxyServer requires service, the tech support specialist will guide you on how to send in your equipment (refer to the next section).

  • Page 58: Service

    MTPSR3-100 User Guide Service If your tech support specialist decides that service is required, your ProxyServer can be sent (freight prepaid) to our factory. Return shipping charges will be paid by Multi-Tech Systems. Include the following with your ProxyServer: •...

  • Page 59: The Multi-Tech Bbs

    The Multi-Tech BBS For customers who do not have Internet access, Multi-Tech maintains a bulletin board system (BBS) that mirrors its FTP site. Information available from the BBS includes new product information, product upgrade files, and problem-solving tips. The phone number for the Multi-Tech BBS is (800) 392-2432 (USA and Canada) or (612) 785-3702 (international and local).

  • Page 60: About Multi-Tech's Internet Presence

    MTPSR3-100 User Guide About Multi-Tech’s Internet Presence Multi-Tech is a commercial user on the Internet, and we retrieve messages from our customers on a periodic basis. Multi-Tech’s presence includes a Web site at: http://www.multitech.com and an ftp site at: ftp://ftp.multitech.com About Ordering Accessories SupplyNet, Inc.

  • Page 61: Appendixes

    Appendixes...

  • Page 62: Appendix A - Cabling Diagrams

    MTPSR3-100 User Guide Appendix A - Cabling Diagrams Command Port Cable LAN Cable 10BaseT (RJ-45) Circuit Signal Name Data Transmit Positive Data Transmit Negative Data Receive Positive Data Receive Negative WAN Cables (RJ-45) WAN1 RJ-45M PIN NO. To WAN Port JACK RJ-45 PIN NO.

  • Page 63: Appendix B - Script Commands

    Appendix B - Script Commands Appendix B - Script Commands A script file can be used to automate certain operations. The script file is a text file containing a sequence of the following commands (listed here according to their functions). This is similar to what you will find in the Help file in your ProxyServer software.

  • Page 64: Example Script

    MTPSR3-100 User Guide Example Script: proc main; string login_prompt; string user_name; string password_prompt; string password; string shell_menu; string shell_menu_response; integer timeout; timeout=10; login_prompt=”login:”; user_name=”user1”; password_prompt=”Password:”; password=”user1”; shell_menu=”choice:”; shell_menu_response=”1”; transmit(“A”); wait(1) transmit(“T^M”); waitfor (“OK”,10); transmit (“A”); wait (1); transmit (“T”); wait (1);...

  • Page 65: Appendix C - Regulatory Information

    Modem CE Mark EMC and Safety Compliance The CE mark is affixed to the enclosed Multi-Tech product to confirm compliance with the following European Community Directives: Council Directive 89/336/EEC of 3 May 1989 on the approximation of the laws of Member States relating to electromagnetic compatibility;...

  • Page 66: Appendix D - Modifying Command And Response Strings

    MTPSR3-100 User Guide Appendix D - Modifying Command and Response Strings Modem Types To add, edit or delete a modem configured for use on the WAN links, click on the Advanced tab in the WAN Setup dialog. Select the desired function by clicking the associated button (Add, Edit, Delete).

  • Page 67: Glossary Of Terms

    Glossary of Terms...
  • Page 68 MTPSR3-100 User Guide Access: The T1 line element made up of two pairs of wire that the telephone company brings to the customer premises. The Access portion ends with a connection at the local telco (LEC or RBOC). Accunet Spectrum of Digital Services (ASDS): The AT&T 56K bps leased (private) line service.
  • Page 69 Bit Error Rate Test (BERT): A device or routine that measures the quality of data transmission. A known bit pattern is transmitted, and the errors received are counted and a BER (bit error rate) is calculated. The BER is the ratio of received bits in error relative to the total number of bits received, expressed in a power of 10.
  • Page 70 MTPSR3-100 User Guide Compression: 1. The process of eliminating gaps, empty fields, redundancies, and unnecessary data to shorten the length of records or blocks. 2. In SNA, the replacement of a string of up to 64-repeated characters by an encoded control byte to reduce the length of the data stream to the LU-LU session partner.
  • Page 71 DTMF (Dual-Tone MultiFrequency): A generic push-button concept made popular by AT&T TouchTone. E&M: A telephony trunking system used for either switch-to- switch, or switch-to-network, or computer/telephone system-to- switch connection. EIA: The Electronics Industries Association is a trade organization in Washington, DC that sets standards for use of its member companies.
  • Page 72 MTPSR3-100 User Guide Frame Relay Implementors Forum: A group of companies supporting a common specification for frame relay connection to link customer premises equipment to telco network equipment. Their specification supports ANSI frame relay specs and defines extensions such as local management.
  • Page 73 LAPB: Link Access Procedure Balanced; based on the X.25 Layer 2 specification. A full-duplex point-to-point, bit-synchronous protocol commonly used as a data link control protocol to interface X.25 DTEs. LAPB is the link initialization procedure that establishes and maintains communications between the DTE and the DCE.
  • Page 74 MTPSR3-100 User Guide Object-Oriented: A method for structuring programs as hierarchically organized classes describing the data and operations of objects that may interact with other objects. Office Channel Unit - Data Port (OCU-DP): The CO channel bank used as the interface between the customer’s DSU and the channel bank.
  • Page 75 Public Switched Telephone Network (PSTN): The group of circuit-switching voice carriers, which are commonly used as analog data communications services. Pulse Code Modulation (PCM): 1. In data communication, variation of a digital signal to represent information; for example, by means of pulse amplitude modulation (PAM), pulse duration modulation (PDM), or pulse position modulation (PPM).
  • Page 76 MTPSR3-100 User Guide Stop Bit: One of the variables used for timing in asynchronous data transmission. Depending on the devices, each character may be trailed by 1, 1.5, or 2 stop bits. Superframe (D4): A T1 transmission format that consists of 12 DS1 frames, or 2316 bits.
  • Page 77 Topology: Physical layout of network components (cables, stations, gateways, and hubs). Three basic interconnection topologies are star, ring, and bus networks. Transmission Control Protocol (TCP): A communications protocol used in Internet and in any network that follows the US Department of Defense standards for internetwork protocol. TCP provides a reliable host-to-host protocol between hosts in packet- switched communications networks and in interconnected systems of such networks.
  • Page 78 MLPPP ... 22, 31 Modifying Command and Response Strings ... 66 MTPSR3-100 ... 6 Multi-Tech BBS ... 59 Multi-Tech Fax-Back Service ... 60 Multi-Tech’s Internet Presence ... 60 On-line Warranty Registration ... 56 Ordering Accessories ... 60 Point-to-Point Protocol (PPP) ... 30 Power Connector ...
  • Page 79 Scripting ... 29, 63 Secondary Server ... 28 Service ... 58 Software ... 18, 26 Built in Test ... 36 DCHP Server Setup ... 32 Description ... 26 Internet Setup ... 30 IP Setup ... 28 Loading ... 18 Proxy Applications Configuration ... 33 Proxy Setup ...

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