Lantronix MSS1-T User manual

Serial Server Installation Guide

For Lantronix MSS1-T and MSS1-T2 Micro Serial Servers

and MSS100 Fast Ethernet Micro Serial Servers

The information in this guide may change without notice. The manufacturer

assumes no responsibility for any errors which may appear in this guide.

DEC, thickwire, thinwire, and VMS are trademarks of Digital Equipment

Corporation. UNIX is a registered trademark of AT&T. Ethernet is a trademark of

XEROX Corporation. HP-UX is a trademark of Hewlett-Packard Corporation.

SunOS and Solaris are trademarks of Sun Microsystems, Inc. NetWare is a

trademark of Novell Corp. Windows NT and Windows 95 are trademarks of

Microsoft Corporation.

may be transmitted or reproduced in any form or by any means without the

written permission of Lantronix. Printed in the United States of America.

The revision date for this manual is

October 7, 1998

Part Number: 900-148

Rev. A

WARNING

This equipment has been tested and found to comply with the limits for a Class A

digital device pursuant to Part 15 of FCC Rules. These limits are designed to

provide reasonable protection against such interference when operating in a

commercial environment. This equipment generates, uses, and can radiate radio

frequency energy, and if not installed and used in accordance with this guide, may

cause harmful interference to radio communications.

Operation of this equipment in a residential area is likely to cause interference in

which case the user, at his or her own expense, will be required to take whatever

measures may be required to correct the interference.

Warning: Changes or modiÞcations to this device not explicitly approved by

Lantronix will void the user's authority to operate this device.

Cet appareil doit se soumettre avec la section 15 des statuts et r•glements de FCC.

Le fonctionnement est subjectŽ aux conditions suivantes:

(1) Cet appareil ne doit pas causer une interfŽrence malfaisante.

(2) Cet appareil do”t accepter n'importŽ quelle interfŽrence re“ue qui peut causer

une opŽration indŽsirable.

Contents

1 Introduction

1.1 Terms ......................................................................................... 1-2

1.2 Protocols.................................................................................... 1-2

1.3 Software..................................................................................... 1-3

1.4 Configuration ........................................................................... 1-3

2 Installation

2.1 MSS Components..................................................................... 2-1

2.2 Installation ................................................................................ 2-2

2.2.1 Power-up Diagnostics................................................... 2-4

2.3 Is It Working? ........................................................................... 2-5

3 Getting Started

3.1 IP Address Configuration....................................................... 3-2

3.1.1 Using a DHCP, BOOTP, or RARP Reply ................... 3-2

3.1.2 Using an ARP Entry and the Ping Command........... 3-2

3.1.3 Using the Serial Console............................................... 3-4

3.2 Incoming Logins....................................................................... 3-4

3.2.1 Controlling Incoming Logins....................................... 3-4

3.2.2 EZWebCon Login and Configuration ........................ 3-5

3.2.3 Other Incoming TCP/IP Logins .................................. 3-5

3.2.4 Incoming LAT Logins ................................................... 3-5

3.3 Serial Port Logins..................................................................... 3-6

3.4 Remote Console Logins........................................................... 3-6

3.5 Starting Outbound Connections............................................ 3-7

3.5.1 Telnet ............................................................................... 3-7

3.5.2 SPX................................................................................... 3-7

3.5.3 LAT .................................................................................. 3-7

3.6 Logout........................................................................................ 3-8

4 Basic Configuration

4.1 Command Set ........................................................................... 4-1

4.2 System Passwords.................................................................... 4-1

4.2.1 Privileged Password...................................................... 4-1

4.2.2 Login Password.............................................................. 4-2

4.3 Protocol Configuration............................................................ 4-2

4.3.1 TCP/IP Parameters ....................................................... 4-2

4.3.2 IPX/SPX Parameters ..................................................... 4-3

4.3.3 LAT Parameters ............................................................. 4-4

4.4 Serial Port Configuration........................................................ 4-4

5 Using the MSS

5.1 Incoming Connections............................................................. 5-1

5.1.1 Socket Connections........................................................ 5-1

5.1.2 LAT Connections ........................................................... 5-2

5.1.3 Host Applications.......................................................... 5-3

5.1.4 Code Examples............................................................... 5-4

5.2 Interactive Connections........................................................... 5-4

5.2.1 Session Control............................................................... 5-4

5.2.2 Outgoing Connections .................................................. 5-6

5.2.3 Status Displays............................................................... 5-9

5.3 Emulating a Direct Serial Connection................................... 5-11

5.4 Multihost Mode........................................................................ 5-12

5.4.1 Configuring Multihost Mode....................................... 5-13

A Contact Information

B Troubleshooting

C Pinouts

iii

D Updating Software

E Specifications

Warranty Statement

Declaration of Conformity

Index

Introduction

1 - 1

1 - Introduction

The MSS1-T and MSS1-T2 are multiprotocol micro serial servers that provide

Ethernet connections for personal computers, terminals, modems, and

devices that would not otherwise be connected to a network. The MSS100

additionally provides Fast Ethernet support.

NOTE:

In this manual, all MSS models will be referred to as Òthe MSSÓ

or Òthe ServerÓ unless a distinction needs to be made between the

models.

The MSS can be used to start outbound Ethernet connections to hosts on

TCP/IP, IPX/SPX, and LAT networks. It can also provide interactive access to

a device connected to its serial port. However, unlike traditional print servers,

the MSS does not support printing protocols such as LPR, RTEL, and

PCONSOLE, or queueing.

This manual explains how to install the MSS products.

¥ The remainder of this chapter outlines MSS functionality.

¥ Chapter 2,

Installation

, explains how to install the MSS hardware

and boot the server.

¥ Chapter 3,

Getting Started

, details different ways to log into the

MSS and prepare the server for configuration.

¥ Chapter 4,

Basic ConÞguration

, covers basic conÞguration.

¥ Chapter 5,

Using the MSS

, provides an overview of how to use the

MSS interactively and with host applications.

¥ Appendices provide information on Contact Information,

Troubleshooting, Pinouts, Updating Software, and SpeciÞcations.

¥ The hypertext version of this manual, located on CD-ROM,

includes more speciÞc information about conÞguring and using

the MSS and reloading MSS software.

Be sure to read the section of the conÞguration chapter that applies to the

protocol you are using (TCP/IP, IPX/SPX, or LAT).

For more detailed information on the MSS, including a complete command

reference, see the

MSS Reference Manual

located on the CD in HTML and PDF

formats.

Terms Introduction

1 - 2

The PDF versions of the MSS manuals are located in the

manuals

directory of

the CD. Use the Adobe Acrobat Reader (widely available on the Internet at no

charge) to read and print all or parts of the manual from the PDF Þle.

1.1 Terms

In this manual, the following terms are used to describe parts of a network.

Host

A computer attached to the network. The term host is

generally used to denote interactive computers, or

computers that people can log into.

Node

Any intelligent device directly connected to the Ethernet

network such as a host, a printer, or a terminal server. All

nodes have their own Ethernet addresses. The MSS is a

node. Devices connected to the MSS are not nodes.

Session

A logical connection to a service. A typical session is a

terminal connected to a host through the server.

Local mode

The MSS user interface. It is used to issue conÞguration

and session management commands and to establish

connections. When in Local mode, users will see a

Local>

prompt.

1.2 Protocols

A network protocol is a method of communicating over the Ethernet. Each

protocol speciÞes a certain arrangement of data in the Ethernet packets, and

provides different services for its users. The MSS supports the following

protocols:

¥ TCP/IP

Support includes Telnet, Rlogin, UDP, and DNS. The Telnet

terminal protocol, supported on most UNIX systems, is an easy-to-

use interface that creates terminal connections to any network host

supporting Telnet. Rlogin is a protocol that allows users to initiate a

TCP/IP login session. UDP (User Datagram Protocol) is a

connectionless protocol that results in smaller packet headers, no

session overhead, and the ability to send to multiple hosts. The

MSS also supports the use of Domain Name Servers (DNS),

allowing a network nameserver to translate text node names into

numeric IP addresses.

Introduction Software

1 - 3

The MSS also implements basic Simple Network Management

Protocol (SNMP) functionality. SNMP commands enable users,

usually system administrators, to get information from and control

other nodes on a local area network (LAN), and respond to queries

from other network hosts. The MSS allows conÞguration of one

community name with read/write access.

¥ IPX/ SPX (NetWare)

The MSS provides IPX/SPX access to the serial device from

NetWare and any other IPX/SPX nodes. It allows users to

download system Þles from NetWare hosts and log into the MSS

via NetWare for remote conÞguration.

The MSS supports all four NetWare frame types: Ethernet v2,

Native mode, 802.2, and 802.2 SNAP.

¥ Local Area Transport (LAT)

LAT is a protocol developed by Digital Equipment Corporation

(DEC) for local network connections and is supported on most

DEC operating systems. The MSS provides logins to remote hosts

and host-initiated connections, as well as access to the MSS serial

port from LAT hosts.

1.3 Software

The CD-ROM shipped with the MSS contains operational software. It also

contains EZWebCon software which can be used to conÞgure the unit.

The MSS is equipped with Flash ROM, so it is not necessary to download

software each time the unit boots. Software must only be reloaded if there is a

problem with the Flash ROM, or if a new software version is released.

1.4 Conﬁguration

Each MSS has a unique name and network address printed on its underside.

The name is based on the MSS Ethernet address and is referred to in the

manual as

MSS_xxxxxx

. The xxxxxx string represents the last six digits of the

MSS Ethernet address. Be sure to note the Ethernet address before

conÞguring the unit.

Configuration Introduction

1 - 4

When using IPX or LAT, it is possible to power up the MSS and have it work

properly with no additional conÞguration required. TCP/IP users must give

the unit an IP address.

NOTE:

For more information about methods used to configure an IP

address, see IP Address Configuration in.

Lantronix has provided EZWebCon software to help users install and

conÞgure the MSS. It is also possible to conÞgure the MSS settings by logging

into it over a network via Telnet or Rlogin. See the

Getting Started

chapter

for

more information.

Additionally, the MSS can be conÞgured to download a conÞguration Þle

containing boot commands from a NetWare or TCP/IP host at boot time. See

the

Change Startup

command in the

MSS Reference Manual

on the CD-ROM

for more information.

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