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Digi PortServer II User Manual

Digi PortServer II
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Page 66 Basic Configuration 90030500B
PortServer II TCP/IP Port Numbers
PortServer II provides two ranges of TCP/IP service numbers to which you can con-
nect from other systems:
2001 - 2099 Telnet Connect
2101 - 2199 Raw Connect
A connection made to any 20
XX
port uses the Telnet protocol, providing full Telnet
compatibility. Use the 20
XX
ports in commands like:
pr myfile
|
telnet dbps-nodename 2001
A connection to any 21
XX
service is a raw connection, passing eight bit “clean” data.
Use the 21XX ports with RTTY (see
Chapter 9
) and custom applications.
The last two digits in each number indicate the port or group the user is connected to.
If the last two digits are in the range 01 through 64, the user is connected to the speci-
fied port. Numbers greater than 64 indicate a
port group number
, as configured with
set
port
group=
group_number
(See
Command Reference Guide
).
When several PortServer II ports are configured with the same group number, they
work like a telephone “hunt group.” Any attempted connection goes to the lowest
numerical port number that can currently accept a connection.
The
set
altip
command (See
Command Reference Guide
) can be used to define
alternate IP addresses for telnetting to a port or hunt group. (This command does not
support raw connections.) For example, you could replace
telnet
abc
2088
with
telnet
abcalt
, if that
abcalt
has an IP address associated with group 88 in the
altip
table, and
abcalt
is defined in a host table.
Note:
Choosing the wrong range of service numbers, (for example, 20
xx
instead of
21
xx
) is a common source of user problems.

Table of Contents

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Digi PortServer II Specifications

General IconGeneral
Product TypeSerial Server
Ports8
Serial InterfaceRS-232
Network InterfaceEthernet
ProtocolsTCP/IP, Telnet, SNMP
ManagementSNMP
Operating Temperature0°C to 50°C (32°F to 122°F)
Humidity5% to 95% non-condensing

Summary

Important Information

Federal Communications Commission (FCC) Statements

Details FCC compliance statements including RFI, labeling, modifications, and cable requirements.

Industry Canada Compliance Statements

Provides Industry Canada compliance statements and certification standards met by the PortServer II.

About this User's Guide

Where do I look for more information?

Guides users on how to find information within the user guide and other documentation.

Document Conventions

Other PortServer II Documentation

Lists additional documentation available for further information on PortServer II and its related software.

Chapter 1 Introduction

Features and Functions

Introduces the PortServer II, detailing its capabilities, connectivity options, and support for various serial devices.

Basic Operation

Explains the basic configuration of serial ports, terminals, users, and printers for PortServer II operation.

Typical Applications

Terminal server configuration - local devices and RealPort

Illustrates a configuration with local terminals connected to application servers via PortServer II and RealPort.

Specifications

Network compatibility

Details the Ethernet standards, connectors, and compatibility features of the PortServer II.

Ports

Lists the serial port specifications, speed capabilities, protocol support, and expansion module connector.

Power Requirements

Specifies the external power supply requirements and internal supply voltages for the PortServer II.

Chapter 2 Operation

PortServer II Front Panel

Details the front panel controls, indicators, and alphanumeric display for status and diagnostics.

Interpreting the LED Indicators

Explains how to interpret the status shown by the LED indicators for serial ports and Ethernet.

PortServer II Side and Rear Panels

Details the connectors and controls on the side and rear panels of the PortServer II.

Chapter 3 Installation

Before you Begin

Lists essential steps and considerations before starting the installation of PortServer II.

Safe installation practices

Provides essential safety warnings and practices to follow during the installation of PortServer II.

Connecting PortServer II to serial devices

Explains how to connect various serial devices using different RJ-45 and RJ-11 plugs.

Chapter 4 Basic Configuration

Entering Configuration Commands

Explains how to enter commands at the PortServer II command line prompt for configuration.

Logging on to PortServer II

Details the procedure for logging into PortServer II using a terminal or PC for configuration.

Configuring the Ethernet Connection

Guides users through setting up essential network parameters like IP address and node name.

Configuring a User

Details how to create and configure user accounts with basic access and network parameters.

Chapter 5 Configuring Terminals

Setting Up a Terminal

Details the procedure for configuring PortServer II for a connected terminal, including type and baud rate.

Chapter 7 Configuring Multiple Sessions and Multiple Screens

Multiple Sessions

Details how users can start and manage multiple login sessions per port, up to a limit of nine.

Multiple Screens

Explains how to configure ports for terminals supporting multiple screens for enhanced usability.

Chapter 8 Configuring WAN Connections

WAN Connections Explained

Defines WAN connections and the required user/filters table entries for incoming, outgoing, and bidirectional links.

Incoming WAN Connections

Explains how incoming WAN connections are established and configured, including user and port settings.

Outgoing WAN Connections

Details how outgoing WAN connections are initiated, including options like dialout and ActivateTime.

Filters

Explains the use of filters for PPP, SLIP, CSLIP connections to manage traffic and security.

Chapter 9 Configuring Modem Connections

Configuring the Modem Connection

Details setting serial port speed, device type, and flow control for modem connections.

Dialer and Login Scripts

Explains creating scripts for dialing modems and logging into remote systems, including state definitions.

Chapter 10 Configuring TCP/IP Routing

Types Of Routing Available

Describes PortServer II's routing capabilities: Passive and Active, and sources for Route Table information.

Passive Routing

Guides on configuring a PortServer II port for passive routing, including WAN connections and static routes.

Active Routing

Explains configuring PortServer II for active routing, including WAN connections, static routes, and forwarding states.

Chapter 11 Configuring RealPort Connections

RealPort Basics

Explains the RealPort protocol, its advantages over TCP/IP, and driver software requirements.

Configuring PortServer II for RealPort Operation

Details setting authorization, changing RealPort TCP port, and setting device types for RealPort connections.

Chapter 12 Configuring SNMP

Configuring the SNMP Agent

Explains the SNMP command syntax for enabling the agent, setting trap destinations, and administrator contact information.

Monitoring SNMP status on PortServer II

Shows how to check the current SNMP agent configuration and status using the 'snmp' command.

Chapter 13 Configuring Printer Connections

Configuring a Printer Connection

Details setting serial port speed, character size, parity, and flow control for printer connections.

Printing using lpd Protocol

Explains configuring the printer with the lpd protocol by specifying queue names and options.

Chapter 17 Troubleshooting

Power On Self Test

Details the POST sequence, tests performed, and corresponding LED indicators for hardware diagnostics.

User Diagnostics

Describes running diagnostics from a terminal or the front panel to check PortServer II hardware functionality.

Statistics

Details how to view and clear network statistics tables such as framerelay, ip, icmp, tcp, and udp.

Hardware Error Counts

Lists and explains various hardware error counts related to Ethernet overruns, collisions, and frame errors.

Trace Messages

Explains how to enable trace messages for troubleshooting, including modes, states, and masks.

Troubleshooting Frame Relay

Provides guidance on troubleshooting Frame Relay link issues: link not coming up or not routing packets.

Chapter 18 Digi Support Services

Technical Support

Explains the process for resolving product difficulties and how to contact Digi Technical Support for assistance.

Glossary

Index

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