Internet Access for LAN-Based Users Model MTPSR3-100 User Guide
User Guide S0000000 Revision B Serial ProxyServer (Model No MTPSR3-100) This publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-Tech Systems, Inc. All rights reserved. Copyright © 1999, by Multi-Tech Systems, Inc. Multi-Tech Systems, Inc. makes no representations or warranties with respect to the contents hereof and specifically disclaims any implied warranties of merchantability or fitness for any particular purpose.
Contents Chapter 1 - Introduction and Description Introduction ....................................................................................................................................................... 6 Preview of This User Guide ............................................................................................................................... 6 Front Panel Description ..................................................................................................................
Chapter 6 - Warranty, Service and Tech Support Introduction ..................................................................................................................................................... 56 Limited Warranty ............................................................................................................................................. 56 Online Warranty Registration ............................................................................................................
Chapter 1 - Introduction and Description
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.
Chapter 1 - Introduction and Description Chapter 4 - ProxyServer Software Chapter 4 describes the ProxyServer software with the approach of how to make changes to the configuration of your ProxyServer. The major configuration parameters were established during the loading of the software (Chapter 3), and the ProxyServer software and configuration utilities allow you to make changes to that initial configuration.
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. An On/Off switch is provided on the right side near the rear of the unit. C3 C2 C1 RD TD CL LK BT Figure 1-2.
Chapter 1 - Introduction and Description 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.
MTPSR3-100 User Guide Specifications Protocols Point-To-Point Protocol (PPP), MultiLink Point-To-Point Protocol (MLPPP), and Serial Line Internet Protocol (SLIP) Ethernet Lan Interface 10BaseT (twisted pair) RJ-45 connector WAN Interface 3 asynchronous Links (RJ-45 connectors) Command Port Single 19.
Chapter 1 - Introduction and Description 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.
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. A list of the Script commands by function, and an example of a typical script is provided in Appendix B - Script Commands.
Chapter 2 - Installation
MTPSR3-100 User Guide Introduction This chapter is organized to guide you through the unpacking and installation of your ProxyServer. The unpacking section describes the contents of the shipping box and shows how the ProxyServer is packaged. The cabling section describes each cable connection and shows where that cable is connected to the ProxyServer. Software loading and installation will be covered in Chapter 3.
Chapter 2 - Installation 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.
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Chapter 3 - Software Loading and Configuration
MTPSR3-100 User Guide Loading Your ProxyServer Software The ProxyServer software and User Guide are contained on the ProxyServer CD. The CD is autodetectable, so when you insert it into your CD ROM drive it will start up automatically. When you have finished configuring your ProxyServer, you can view and print the User Guide by clicking on the Install Manuals icon.
Chapter 3 - Software Loading and Configuration 4 Press Enter or click Next> to continue. 5 Follow the on-screen instructions to install your ProxyServer software. 6 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.
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.
Chapter 3 - Software Loading and Configuration 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.
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.
Chapter 3 - Software Loading and Configuration 17 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.
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Chapter 4 - ProxyServer Software
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 (Chapter 3), and the ProxyServer software and configuration utilities allow you to make changes to that initial configuration. The ProxyServer software allows you to refine your configuration based on your network connections.
Chapter 4 - ProxyServer Software Proxy Setup The Proxy Setup menu consists of 13 buttons, ten of which allow you to display and change the IP protocol, define the WAN ports, change features such as the Internet, DHCP server, ProxyServer, and Virtual servers, display Statistics on the WAN ports, test the communications link, print messages received from the target ProxyServer, and download setup information to the ProxyServer.
MTPSR3-100 User Guide Changing IP Parameters The IP Setup dialog box establishes the IP addressing for your LAN and WAN ports. To change the IP Setup parameters that were configured during the Wizard Setup, click on the IP button in the Proxy Setup menu. The IP Setup dialog is displayed. The Port Selection list displays the ports that are available for IP configuration. Ports include: LAN, WAN 1, WAN 2 and WAN 3.
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. The WAN Setup dialog box is displayed. From this dialog, you can configure the parameters of the three WAN ports. To enable a specific WAN port, click the associated tab (WAN 1, WAN 2, or WAN 3) and click (check) the Port Enable check box.
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). To change the Internet parameters click on the Internet button in the Proxy Setup menu. The Internet Setup dialog is displayed.
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. Note: In order for link bundling to take place, you need to make sure that the User Name and Password of all the WAN port links are the same.
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. The DCHP Server Setup dialog box appears. Click Enable to enable the ProxyServer’s built in DHCP server. The Manage Addresses group defines the IP address range and those addresses that may be excluded in the Exclude Range.
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. If you want more information about application configuration refer to RFC 1700 (http://www.cis.ohio-state.edu/htbin/rfc/rfc1700.html) which defines the Internet Protocol suite.
MTPSR3-100 User Guide Enabling the Virtual Server The Virtual Server Setup dialog box allows you to assign a virtual address to a statically assigned 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.
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.
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. If the Local Port configuration is set for IP, no diagnostic tests are performed by the ProxyServer.
Chapter 5 - Client Setup
MTPSR3-100 User Guide Introduction The information provided in this chapter enables multiple users to configure their Windows® PCs to 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.
Chapter 5 - Client Setup 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. 1 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.
MTPSR3-100 User Guide 3 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. 4 Click the Bindings tab, then if necessary click on the box to the left of TCP/IP so this entry is enabled (checked). Note: There may be other protocols listed and enabled under your Ethernet adapter. This does not affect the TCP/IP protocol.
Chapter 5 - Client Setup 5 Select TCP/IP, then click Properties to open the TCP/IP Properties window. 6 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.
MTPSR3-100 User Guide 8 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. 9 In the IP Address field, type the IP address assigned to your PC. Remove the default IP address (if any), and begin typing the new address.
Chapter 5 - Client Setup 10 Click on the Gateway tab. 11 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.
MTPSR3-100 User Guide 12 Click on the DNS Configuration tab. Verify that Enable DNS is selected (checked). 13 In the Host field, enter your user name (i.e., jerry). 14 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).
Chapter 5 - Client Setup 16 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: Configuration Checklist IP Address (PC) . . . IP Address (ProxyServer) . . . . . . Host (User Name) Domain DNS Server Address Network Adapter (Manufacturer/Model Number) 17 Reboot the PC for changes to take effect. At this point your client setup is complete. Test your setup by following steps 18 and 19.
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. 1 In the Network dialog, click Add. The Select Network Component Type dialog is displayed with a list of installation options. 2 Select Protocol and click Add. The Select Network Protocol dialog is displayed with protocol options.
Chapter 5 - Client Setup 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. 1 Click Start | Settings | Control Panel and then double click on the Network icon. The Network dialog appears. 2 Click on the Protocols tab. 3 A list of protocols currently present on your PC is displayed. Check the installed protocols.
MTPSR3-100 User Guide 4 Click on the Bindings tab. 5 In the Show Bindings for drop down list, select all adapters. A list of all adapters is displayed. 6 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. Note: There may be other protocols in the list under your Ethernet adapter. This does not affect the TCP/IP protocol.
Chapter 5 - Client Setup 8 In the Network Protocols list select TCP/IP, then click Properties. The Microsoft TCP/IP Properties dialog is displayed. 9 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.
MTPSR3-100 User Guide 11 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. 12 In the IP Address field, type the IP address assigned to your PC. Remove the default IP address (if any), and begin typing the new address.
Chapter 5 - Client Setup 15 Click on the DNS tab. The Domain Name System (DNS) properties are displayed. 16 In the Host Name field, type your user name (i.e., jerry). 17 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). 18 In the DNS Server Search Order group, click Add. The TCP/IP DNS Server dialog is displayed.
MTPSR3-100 User Guide 20 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. If this is the case, add the IP address of the secondary DNS server using the same procedure as with the first.
Chapter 5 - Client Setup 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. 1 While the Network dialog box is open, click Add. 2 The Select Network Protocol dialog is displayed with a list of available protocol options. 3 Highlight TCP/IP Protocol and click OK. If necessary (i.e.
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Chapter 6 - Warranty, Service and Tech Support
MTPSR3-100 User Guide Introduction This chapter will provide you the resources for receiving service or support for your ProxyServer. The chapter starts with a description of the warranty, and continues with instructions for contacting the Service department, Technical Support group, and various Multi-Tech Internet resources. Limited Warranty Multi-Tech Systems, Inc.
Chapter 6 - Warranty, Service and 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 1-800-9722439. 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).
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: • a description of the problem. • return billing and return shipping addresses. • contact name and phone number. • check or purchase order number for payment if the ProxyServer is out of warranty.
Chapter 6 - Warranty, Service and Tech Support 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).
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. can supply you with replacement transformers, cables and connectors for select Multi-Tech products.
Appendixes
MTPSR3-100 User Guide Appendix A - Cabling Diagrams Command Port Cable RJ-45 DB9F PIN NO. PIN NO. To Command Port Connector 1 2 3 4 5 6 7 8 1 4 2 7 3 8 CLEAR TO SEND 4 3 TRANSMIT DATA To DTE Device 5 2 RECEIVE DATA (e.g., PC) 6 6 7 1 8 5 SIGNAL GROUND Note: RJ-45 pins 3,4,5, and 8 are the only ones used.
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. Following the list of commands is an 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); transmit (“DT963^M”); if (waitfor (login_prompt,60)) then t
Appendix C - Regulatory Information Appendix C - Regulatory Information FCC Declaration NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a residential installation.
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). The Modem Types dialog is displayed. This dialog allows you to configure the command and response strings of connectable modems on the WAN ports.
Glossary of Terms
MTPSR3-100 User Guide A B 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). B7ZS (Bipolar 7 Zero Suppression) line coding: One method of T1 line coding (see also “B8ZS” and “AMI”). B7ZS line coding does not place restrictions on user data (AMI does). Accunet Spectrum of Digital Services (ASDS): The AT&T 56K bps leased (private) line service.
Glossary 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. Bit robbing: The use of the least significant bit per channel in every sixth frame for signaling.
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. The encoded control byte is followed by the character that was repeated (unless that character is the prime compression character). 3.
Glossary DTMF (Dual-Tone MultiFrequency): A generic push-button concept made popular by AT&T TouchTone. E E&M: A telephony trunking system used for either switch-toswitch, or switch-to-network, or computer/telephone system-toswitch connection. EIA: The Electronics Industries Association is a trade organization in Washington, DC that sets standards for use of its member companies. (See RS-232, RS-422, RS530.
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. Frame Relay Access Device (FRAD): A piece of equipment that acts as a concentrator or frame assembler/dissassembler that can support multiple protocols and provide basic “routing” functions. G Gateway: 1.
Glossary L 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. LAPD: Link Access Protocol for the D-Channel; based on the ISDN Q.921 specification.
MTPSR3-100 User Guide O 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. Off-hook: The condition of a device which has accessed a phone line (with or without using the line). In modem use, this is equivalent to a telephone handset being picked up.
Glossary 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). 2.
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. A DS1 frame consists of 193 bit positions. A frame overhead bit is in the first position, and it is used for frame and signaling phase alignment only. Subscriber Loop: See “Local loop”.
Glossary 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 packetswitched communications networks and in interconnected systems of such networks.
MTPSR3-100 User Guide Index A Accessories ........................................................... 60 Adding Proxy Applications ..................................... 33 B Back and Side Panel Descriptions .......................... 9 BBS ....................................................................... 59 Boot LED ................................................................. 8 Built in Test ............................................................ 36 C Cabling Diagrams ....................
Index S Scripting ......................................................... 29, 63 Secondary Server ................................................. 28 Service .................................................................. 58 Software ......................................................... 18, 26 Built in Test ..................................................... 36 DCHP Server Setup ........................................ 32 Description ......................................................
