EDS Device Servers/Terminal Servers
User Guide
EDS4100
EDS8PR
EDS16PR
EDS32PR
Part Number 900-433
Revision F November 2007
Copyright & Trademark
© 2006, 2007 Lantronix. All rights reserved. No part of the contents of this book 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.
Ethernet is a trademark of XEROX Corporation. UNIX is a registered trademark of The
Open Group. Windows 95, Windows 98, Windows 2000, and Windows NT are
trademarks of Microsoft Corp. Netscape is a trademark of Netscape Communications
Corporation.
Contacts
Lantronix Corporate Headquarters
15353 Barranca Parkway
Irvine, CA 92618, USA
Phone: 949-453-3990
Fax: 949-453-3995
Technical Support
Online: www.lantronix.com/support
Sales Offices
For a current list of our domestic and international sales offices, go to the Lantronix web
site at www.lantronix.com/about/contact
.
Disclaimer & Revisions
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.
Changes or modifications to this device not explicitly approved by Lantronix will void the
user's authority to operate this device.
Attention: With the purchase of the EDS, the OEM agrees to an OEM firmware license
agreement that grants the OEM a non-exclusive, royalty-free firmware license to use and
distribute the binary firmware image provided, only to the extent necessary to use the
EDS hardware. For further details, please see the EDS OEM firmware license
agreement.
The information in this guide may change without notice. The manufacturer assumes no
responsibility for any errors that may appear in this guide.
Date Rev. Comments
3/06 A Initial Document
10/06 B EDS16PR and EDS32PR products added.
12/06 D German and English TUV certification added.
1/07 E EDS8PR products added.
11/07 F Added LPD, Terminal, Host, RSS, and RTC pages; updated; XML and
other pages.
EDS Device Servers User Guide 2
Contents
1: Preface 11
Purpose and Audience_______________________________________________ 11
Summary of Chapters _______________________________________________ 11
Additional Documentation ____________________________________________ 12
2: Introduction 13
EDS4100 Overview _________________________________________________ 13
EDS8PR, EDS16PR, and EDS32PR Overview____________________________ 14
Evolution OS™ ____________________________________________________ 15
Features ______________________________________________________________ 14
Features ______________________________________________________________ 15
Web-Based Configuration and Troubleshooting _______________________________ 16
Command-Line Interface (CLI)_____________________________________________ 16
SNMP Management_____________________________________________________ 16
XML-Based Architecture and Device Control__________________________________ 16
Really Simple Syndication (RSS)___________________________________________ 16
Enterprise-Grade Security ________________________________________________ 16
Troubleshooting Capabilities ______________________________________________ 17
Applications _______________________________________________________ 18
Building Automation/Security ______________________________________________ 18
Industrial Automation ____________________________________________________ 18
Medical/Healthcare______________________________________________________ 18
Retail Automation/Point-of-Sale ____________________________________________ 19
Terminal Server/Console Management ______________________________________ 19
Traffic Management _____________________________________________________ 19
3: Installation: EDS4100 20
Package Contents __________________________________________________ 20
User-Supplied Items ________________________________________________ 20
Identifying Hardware Components______________________________________ 21
Serial Ports____________________________________________________________ 22
Ethernet Port __________________________________________________________ 23
Terminal Block Connector ________________________________________________ 23
LEDs_________________________________________________________________ 23
Reset Button___________________________________________________________ 24
Physically Installing the EDS4100 ______________________________________ 24
EDS Device Servers User Guide 3
Contents
Finding a Suitable Location _______________________________________________ 24
Connecting the EDS4100_________________________________________________ 24
4: Installation: EDS8PR, EDS16PR and EDS32PR 26
Package Contents __________________________________________________ 26
User-Supplied Items ________________________________________________ 26
Identifying Hardware Components______________________________________ 27
Serial Ports____________________________________________________________ 28
Ethernet Port __________________________________________________________ 28
LEDs_________________________________________________________________ 28
Reset Button___________________________________________________________ 29
Physically Installing the EDS8/16/32PR__________________________________ 29
Finding a Suitable Location _______________________________________________ 29
Connecting the EDS8/16/32PR ____________________________________________ 29
5: Getting Started 31
Using DeviceInstaller ________________________________________________ 31
Starting DeviceInstaller __________________________________________________ 31
Viewing EDS Properties __________________________________________________ 32
Configuration Methods_______________________________________________ 34
Configuring from the Web Manager Interface _________________________________ 34
Configuring via an SSH/Telnet Session or Serial Port Using the CLI _______________ 34
Configuring from the XML Interface _________________________________________ 35
6: Configuration Using the Web Manager 36
Accessing the Web Manager through a Web Browser ______________________ 36
Navigating Through the Web Manager __________________________________ 38
Device Status Page _________________________________________________ 47
7: Network, Line, Tunnel, and Terminal Settings 48
Network Configuration Page __________________________________________ 48
Line Settings Pages_________________________________________________ 51
Line – Statistics Page____________________________________________________ 52
Line - Configuration Page ________________________________________________ 53
Line – Command Mode Page _____________________________________________ 55
Tunnel Pages______________________________________________________ 56
Tunnel – Statistics Page _________________________________________________ 56
Tunnel – Serial Settings Page _____________________________________________ 57
Tunnel – Start/Stop Characters Page _______________________________________ 59
Tunnel – Accept Mode Page ______________________________________________ 61
Tunnel – Connect Mode Page _____________________________________________ 63
EDS Device Servers User Guide 4
Contents
Tunnel – Disconnect Mode Page ___________________________________________ 66
Tunnel – Packing Mode Page _____________________________________________ 68
Tunnel – Modem Emulation Page __________________________________________ 69
Tunnel – AES Keys Page_________________________________________________ 70
Terminal Page _____________________________________________________ 72
Host Page ________________________________________________________ 73
Login Connect Menu ________________________________________________ 75
8: Services Settings 76
DNS Page ________________________________________________________ 76
SNMP Page _______________________________________________________ 77
FTP Page_________________________________________________________ 79
TFTP Page________________________________________________________ 80
Syslog Page_______________________________________________________ 81
HTTP Pages ______________________________________________________ 82
HTTP Statistics Page ____________________________________________________ 82
HTTP Configuration Page ________________________________________________ 82
HTTP Authentication Page________________________________________________ 85
RSS Page ________________________________________________________ 88
LPD Pages________________________________________________________ 89
LPD Statistics Page _____________________________________________________ 90
LPD Configuration Page _________________________________________________ 91
9: Security Settings 93
SSH Pages _______________________________________________________ 93
SSH Server: Host Keys Page _____________________________________________ 93
SSH Server: Authorized Users Page ________________________________________ 96
SSH Client: Known Hosts Page ____________________________________________ 97
SSH Client: Users Page__________________________________________________ 98
SSL Page________________________________________________________ 101
10: Maintenance and Diagnostics Settings 105
Filesystem Pages__________________________________________________ 105
Filesystem Statistics Page _______________________________________________ 105
Filesystem Browser Page _______________________________________________ 106
Protocol Stack Page _______________________________________________ 109
IP Address Filter Page ______________________________________________ 110
Query Port Page __________________________________________________ 112
Diagnostics Pages _________________________________________________ 113
Diagnostics: Hardware Page _____________________________________________ 113
EDS Device Servers User Guide 5
Contents
MIB-II Network Statistics Page____________________________________________ 114
IP Sockets Page_______________________________________________________ 115
Diagnostics: Ping Page _________________________________________________ 116
Diagnostics: Traceroute Page ____________________________________________ 117
Diagnostics: DNS Lookup Page___________________________________________ 118
Diagnostics: Memory Page ______________________________________________ 118
Diagnostics: Buffer Pools ________________________________________________ 120
Diagnostics: Processes Page ____________________________________________ 120
Real Time Clock Page ______________________________________________ 122
System Page _____________________________________________________ 123
11: Advanced Settings 125
Email Pages______________________________________________________ 125
Email Statistics Page ___________________________________________________ 125
Email Configuration Page _______________________________________________ 126
CLI Pages _______________________________________________________ 128
Command Line Interface Statistics Page ____________________________________ 128
Command Line Interface Configuration Page ________________________________ 129
XML Pages ______________________________________________________ 131
XML: Export Configuration Page __________________________________________ 131
XML: Export Status ____________________________________________________ 133
XML: Import Configuration Page __________________________________________ 135
12: Updating Firmware 141
Obtaining Firmware ________________________________________________ 141
Upgrading Using DeviceInstaller ______________________________________ 141
Loading New Firmware _________________________________________________ 141
Updating the Boot Loader from DeviceInstaller _______________________________ 141
Updating Firmware _____________________________________________________ 142
A: Factory Default Configuration 143
Network Configuration Settings _______________________________________ 143
Serial Port Line Settings ____________________________________________ 143
Tunnel Settings ___________________________________________________ 144
Serial Settings ________________________________________________________ 144
Start/Stop Characters___________________________________________________ 145
Accept Mode _________________________________________________________ 145
Connect Mode ________________________________________________________ 145
Disconnect Mode ______________________________________________________ 146
Packing Mode_________________________________________________________ 146
Modem Emulation _____________________________________________________ 147
EDS Device Servers User Guide 6
Contents
AES Keys ____________________________________________________________ 147
Host Settings _____________________________________________________ 147
Terminal Settings__________________________________________________ 148
DNS Settings _____________________________________________________ 148
SNMP Settings____________________________________________________ 148
FTP Settings _____________________________________________________ 149
TFTP Settings ____________________________________________________ 149
Syslog Settings ___________________________________________________ 149
HTTP Settings ____________________________________________________ 150
Configuration _________________________________________________________ 150
Authentication_________________________________________________________ 150
RSS ____________________________________________________________ 150
CLI Settings ______________________________________________________ 151
Telnet _______________________________________________________________ 151
Email Settings ____________________________________________________ 151
LPD Settings _____________________________________________________ 152
IP Address Filter __________________________________________________ 152
Query Port Settings ________________________________________________ 152
System Settings ___________________________________________________ 153
Real Time Clock___________________________________________________ 153
Protocol Stack ____________________________________________________ 153
TCP ________________________________________________________________ 153
ICMP _______________________________________________________________ 153
ARP ________________________________________________________________ 153
B: Technical Specifications 154
EDS4100 ________________________________________________________ 154
EDS8/16/32PR____________________________________________________ 156
C: Networking and Security 158
SSH ____________________________________________________________ 158
How Does SSH Authenticate? ____________________________________________ 158
What Does SSH Protect Against? _________________________________________ 158
SSL ____________________________________________________________ 159
Benefits of SSL________________________________________________________ 159
How SSL Works _______________________________________________________ 159
Digital Certificates _____________________________________________________ 160
Tunneling ________________________________________________________ 161
Tunneling and the EDS _________________________________________________ 162
EDS Device Servers User Guide 7
Contents
Connect Mode ________________________________________________________ 162
Accept Mode _________________________________________________________ 163
Disconnect Mode ______________________________________________________ 163
Packing Mode_________________________________________________________ 164
Modem Emulation _________________________________________________ 164
Command Mode_______________________________________________________ 165
D: Technical Support 167
E: Lantronix Cables and Adapters 168
F: Compliance 169
Lithium Battery Notice ______________________________________________ 170
Installationsanweisungen____________________________________________ 170
Rackmontage _________________________________________________________ 170
Energiezufuhr _________________________________________________________ 170
Erdung ______________________________________________________________ 170
Installation Instructions _____________________________________________ 170
Rack Mounting ________________________________________________________ 170
Input Supply __________________________________________________________ 171
Grounding____________________________________________________________ 171
G: Warranty 172
Index 173
Figures
Figure 2-1. EDS4100 4 Port Device Server.............................................................. 14
Figure 2-2. EDS16PR Device Server........................................................................ 15
Figure 3-1. Front View of the EDS4100..................................................................... 21
Figure 3-2. Back View of the EDS4100 ..................................................................... 21
Figure 3-3. RS-232 Serial Port Pins (Serial Ports 1, 2, 3, 4) ..................................... 22
Figure 3-4. RS-422/RS-485 Serial Port Pins ............................................................. 22
Figure 3-5. Terminal Block Connector Pin Assignments ........................................... 23
Figure 3-6 .Back Panel LEDs..................................................................................... 23
Figure 3-7. Example of EDS4100 Connections ......................................................... 25
Figure 4-1. Front View of the EDS16PR.................................................................... 27
Figure 4-2. Back View of the EDS16PR .................................................................... 27
Figure 4-3. RJ45 Serial Port ...................................................................................... 28
Figure 4-4. Example of EDS16PR Connections ........................................................ 30
Figure 5-1. Lantronix DeviceInstaller ........................................................................ 32
Figure 5-2. EDS4100 Properties................................................................................ 33
Figure 6-1. Prompt for User Name and Password..................................................... 36
Figure 6-2. Web Manager Device Status Page ......................................................... 37
Figure 6-3. Web Manager Menu Structure (1 of 5).................................................... 40
Figure 6-4. Web Manager Menu Structure (2 of 5).................................................... 41
Figure 6-5. Web Manager Menu Structure (3 of 5).................................................... 42
EDS Device Servers User Guide 8
Contents
Figure 6-6. Web Manager Menu Structure (4 of 5).................................................... 43
Figure 6-7. Web Manager Menu Structure (5 of 5)................................................... 44
Figure 6-8. Components of the Web Manager Page................................................. 45
Figure 6-9. EDS Menu ............................................................................................... 46
Figure 6-10. Device Status Page (EDS4100) ............................................................ 47
Figure 7-1. Network Configuration............................................................................. 49
Figure 7-2. Line – Statistics Page.............................................................................. 52
Figure 7-3. Line – Configuration Page....................................................................... 53
Figure 7-4. Line – Command Mode Page.................................................................. 55
Figure 7-5. Tunnel - Statistics Page.......................................................................... 57
Figure 7-6. Tunnel – Serial Settings Page................................................................. 58
Figure 7-7. Tunnel – Start/Stop Chars Page ............................................................. 60
Figure 7-8. Tunnel – Accept Mode Page .................................................................. 61
Figure 7-9. Connect Mode Page................................................................................ 64
Figure 7-10. Tunnel – Disconnect Mode Page .......................................................... 67
Figure 7-11. Tunnel – Packing Mode Page ............................................................... 68
Figure 7-12. Tunnel – AES Keys Page...................................................................... 71
Figure 7-13. Terminal Page ....................................................................................... 72
Figure 7-14. Host Page.............................................................................................. 74
Figure 8-1. DNS Page................................................................................................ 76
Figure 8-2. SNMP Page............................................................................................. 77
Figure 8-3. FTP Page................................................................................................. 79
Figure 8-4. TFTP Page .............................................................................................. 80
Figure 8-5. Syslog Page ............................................................................................ 81
Figure 8-6. HTTP Statistics Page .............................................................................. 82
Figure 8-7. HTTP Configuration Page ....................................................................... 83
Figure 8-8. HTTP Authentication Page...................................................................... 86
Figure 8-9. RSS Page................................................................................................ 88
Figure 8-10. LPD Statistics Page............................................................................... 90
Figure 8-11. LPD Configuration Page........................................................................ 91
Figure 9-1. SSH Server: Host Keys Page.................................................................. 94
Figure 9-2. SSH Server: Authorized Users Page ...................................................... 96
Figure 9-3. SSH Client: Known Hosts Page .............................................................. 97
Figure 9-4. SSH Client: Users Page .......................................................................... 99
Figure 9-5. SSL Page (top)...................................................................................... 101
Figure 9-6. SSL Page (Bottom)................................................................................ 102
Figure 10-1. Filesystem Statistics Page................................................................... 106
Figure 10-2. Filesystem Browser Page.................................................................... 107
Figure 10-3. Protocol Stack Page............................................................................ 109
Figure 10-4. IP Address Filter Page......................................................................... 111
Figure 10-5. Query Port Page.................................................................................. 112
Figure 10-6. MIB-II Network Statistics Page............................................................ 114
Figure 10-7 IP Sockets Page ................................................................................... 115
Figure 10-8 Diagnostics: Ping Page ........................................................................ 116
Figure 10-9 Diagnostics: Traceroute Page .............................................................. 117
Figure 10-10 Diagnostics: DNS Lookup Page ......................................................... 118
Figure 10-11 Diagnostics: Memory Page ................................................................ 119
Figure 10-12. Diagnostics: Buffer Pools Page......................................................... 120
Figure 10-13. Diagnostics: Processes Page............................................................ 121
Figure 10-14. Real Time Clock Page....................................................................... 122
Figure 10-15. System Page ..................................................................................... 123
Figure 11-1. Email Statistics Page........................................................................... 126
Figure 11-2. Email Configuration Page.................................................................... 127
Figure 11-3. Command Line Interface Statistics Page ............................................ 129
Figure 11-4. Command Line Interface Configuration Page ..................................... 130
Figure 11-5. XML : Export Configuration Page........................................................ 132
EDS Device Servers User Guide 9
Contents
Figure 11-6. XML: Export Status Page .................................................................... 134
Figure 11-7. XML: Import Configuration Page ......................................................... 135
Figure 11-8. XML: Import Configuration from External File ..................................... 136
Figure 11-9. XML: Import from Filesystem .............................................................. 137
Figure 11-10. XML: Import Line(s) from Single Line Settings on the Filesystem ... 139
EDS Device Servers User Guide 10
1: Preface
Purpose and Audience
This guide describes how to install, configure, use, and update the EDS4100 4-Port,
EDS8PR 8-Port, EDS16PR 16-Port, and EDS32PR 32-Port Device Servers. It is for
users who will use the EDS to network-enable their serial devices.
Summary of Chapters
The remaining chapters in this guide include:
Chapter Description
2: Introduction
3: Installation: EDS4100
4: Installation: EDS8PR,
EDS16PR and EDS32PR
5: Getting Started
6:Configuration Using the Web
Manager
7: Network, Line, Tunnel, and
Terminal Settings
8: Services Settings
9: Security Settings
10: Maintenance and
Diagnostics
Main features of the EDS device servers and the applications for which
they are suited.
Instructions for getting the EDS4100 device server up and running.
Includes a description of hardware components.
Instructions for getting the EDS8PR, EDS16PR and EDS32PR device
server up and running. Includes a description of hardware components.
Instructions for starting DeviceInstaller and viewing current configuration
settings. Introduces methods of configuring the EDS.
Instructions for using the web interface to configure EDS device servers.
Instructions for using the web interface to configure network, serial line,
and tunnel settings.
Instructions for using the web interface to configure settings for DNS,
SNMP, FTP, and other services.
Instructions for using the web interface to configure SSH and SSL security
settings.
Instructions for using the web interface to maintain the EDS, view statistics,
files, and logs, and diagnose problems.
11: Advanced Settings
12: Updating Firmware
A: Factory Default
Configuration
B: Technical Specifications
Instructions for using the web interface to configure email, CLI, and XML
settings.
Instructions for upgrading the EDS firmware.
Quick reference of the EDS factory-default configuration settings.
Tables of technical data about the products...
EDS Device Servers User Guide 11
Chapter Description
1: Preface
C: Networking and Security
D: Technical Support
F: Compliance
G: Warranty
Additional Documentation
The following guide is available on the product CD or the Lantronix Web site:
www.lantronix.com
Document Description
EDS Device Server Quick
Start Guide
EDS Device Server
Command Reference
Secure Com Port Redirector
User Guide
.
In-depth description of networking and network security as it relates to the
EDS device servers.
Information about contacting Lantronix Technical Support.
Information about the products' compliance with regulatory standards.
Provides information on the Lantronix warranty for the EDS.
Provides the steps for getting the EDS up and running.
Describes how to configure the EDS using Telnet or the serial
port and summarizes the CLI and XML configuration
commands.
Provides information for using the Lantronix Windows-based
utility to create secure virtual com ports.
EDS Device Servers User Guide 12
2: Introduction
This chapter introduces the Lantronix EDS family of device servers. It provides an
overview of the products, lists their key features, and describes the applications for which
they are suited.
EDS is a unique, hybrid Ethernet terminal and multi-port device server product designed
to remotely access and manage virtually all of your IT/networking equipment and servers,
as well as edge devices such as medical equipment, kiosks, POS/retail terminals,
security equipment and much more.
EDS device servers contain all the components necessary to deliver full network
connectivity to virtually any kind of serial device, a reliable TCP/IP protocol stack, and a
variety of remote management capabilities. They boast an innovative design and run on
Lantronix’s leading-edge Evolution OS™, our powerful real-time networking operating
system that delivers an unprecedented level of intelligence and security to networked
equipment.
Delivering a data center-grade, programmable device computing and networking platform
for integrating “edge” equipment into the enterprise network, rack-mountable EDS models
are available in 8, 16, and 32 port configurations.
EDS4100 Overview
The EDS4100 is a compact, easy-to-use device server that gives you the ability to
network-enable asynchronous RS-232 and RS-422/485 serial devices. It can deliver fully
transparent RS-232/422 point-to-point connections and RS-485 multi-drop connections
without requiring modifications to existing software or hardware components in your
application.
Note: RS-485 circuits support 32 full-load devices or 128 quarter-load devices.
Each EDS4100 RS-485 port, however, counts as one device, leaving up to 31
full-load or 127 quarter-load devices that can be connected to the RS-485 circuit.
The EDS4100 device server supports the Power-over-Ethernet (PoE) standard.
With PoE, power is supplied to the EDS over the Ethernet cable, by either an
Ethernet switch or a midspan device. Being able to draw power through the
Ethernet cable eliminates power supply and cord clutter. It also allows the EDS to
be located in areas where power is not typically available.
Ports 1 through 4 support RS-232 devices.
Ports 1 and 3 also support RS-422/485 devices.
EDS Device Servers User Guide 13
Figure 2-1. EDS4100 4 Port Device Server
Features
The following list summarizes the key features of the EDS4100.
2: Introduction
Dual-purpose Ethernet terminal server and device server design
Includes four serial ports with hardware handshaking signals
Supports RS-232 and RS-422/485
Includes one RJ45 Ethernet port
Supports the IEEE 802.3af standard for Power-over-Ethernet (PoE)
8 MB Flash memory
32 MB Random Access Memory (RAM)
Based on Lantronix’s Evolution OS™
Supports secure data encryption by means of AES, SSH, or SSL sessions
Supports three convenient configuration methods (Web, command line, and
XML)
Print server functionality (LPR/LPD)
EDS8PR, EDS16PR, and EDS32PR Overview
The EDS8PR (8 serial ports), EDS16PR (16 serial ports), and EDS32PR (32 serial ports)
are compact easy-to-use, rack-mountable device servers that give you the ability to
network-enable asynchronous RS-232 serial devices. They provide fully transparent RS232 point-to-point connections without requiring modifications to existing software or
hardware components in your application.
EDS Device Servers User Guide 14
2: Introduction
Figure 2-2. EDS16PR Device Server
Features
The following list summarizes the key features of the EDS8PR, EDS16PR, and
EDS32PR.
Dual-purpose Ethernet terminal server and device server design
Includes 8 (EDS8PR), 16 (EDS16PR) or 32 (EDS32PR) serial ports with
hardware handshaking signals
Supports RS-232
Includes one RJ45 Ethernet port
8 MB Flash memory
32 MB Random Access Memory (RAM)
Based on Lantronix’s Evolution OS™
Includes a dedicated console port
Supports secure data encryption by means of AES, SSH, or SSL sessions
Supports three convenient configuration methods (Web, command line, and
XML)
Print server functionality (LPR/LPD)
Evolution OS™
EDS device servers incorporate Lantronix’s Evolution OS™. Key features of the
Evolution OS™ include:
Built-in Web server for configuration and troubleshooting from Web-based
browsers
CLI configurability
SNMP management
XML data transport and configurability
Really Simple Syndication (RSS) information feeds
Enterprise-grade security with SSL and SSH
EDS Device Servers User Guide 15
2: Introduction
Comprehensive troubleshooting tools
Web-Based Configuration and Troubleshooting
Built upon popular Internet-based standards, the EDS enables users to configure,
manage, and troubleshoot efficiently through a simplified browser-based interface that
can be accessed anytime from anywhere. All configuration and troubleshooting options
are launched from a well-organized, multi-page interface. Users can access all
functionality via a Web browser, allowing them flexibility and remote access. As a result,
users can enjoy the twin advantages of decreased downtime (based on the
troubleshooting tools) and the ability to implement configuration changes easily (based
on the configuration tools).
In addition, users can load their own Web pages onto the EDS to facilitate monitoring and
control of their own serial devices that are attached to the EDS.
Command-Line Interface (CLI)
Making the edge-to-enterprise vision a reality, the EDS with the Evolution OS™ uses
industry-standard tools for configuration, communication, and control. For example, the
Evolution OS™ uses a Cisco
similar to that used by data center equipment such as routers and hubs.
®
-like command line interface (CLI) whose syntax is very
SNMP Management
The EDS supports full SNMP management, making it ideal for applications where device
management and monitoring are critical. These features allow networks with SNMP
capabilities to correctly diagnose and monitor EDS device servers.
XML-Based Architecture and Device Control
XML is a fundamental building block for the future growth of M2M networks. The EDS
supports XML-based configuration setup records that makes device configuration
transparent to users and administrators. The XML is easily editable with a standard text
or XML editor.
Really Simple Syndication (RSS)
The EDS supports Really Simple Syndication (RSS), a rapidly emerging technology for
streaming and managing on-line content. RSS feeds all the configuration changes that
occur on the device. The feed is then read (polled) by an RSS aggregator. More powerful
than simple email alerts, RSS uses XML as an underlying Web page transport and adds
intelligence to the networked device while not taxing already overloaded email systems.
Enterprise-Grade Security
Without the need to disable any features or functionality, the Evolution OS™ provides the
EDS the highest level of security possible. This ‘data center grade’ protection ensures
that each device on the M2M network carries the same level of security as traditional IT
networking equipment in the corporate data center.
With built-in SSH and SSL, secure communications can be established between the EDS
serial ports and the remote end device or application. By protecting the privacy of serial
data being transmitted across public networks, users can maintain their existing
EDS Device Servers User Guide 16
2: Introduction
investment in serial technology, while taking advantage of the highest data-protection
levels possible.
SSH and SSL can:
Verify the data received came from the proper source
Validate that the data transferred from the source over the network has not
changed when it arrives at its destination (shared secret and hashing)
Encrypt data to protect it from prying eyes and nefarious individuals
Provide the ability to run popular M2M protocols over a secure SSH connection
In addition to keeping data safe and accessible, the EDS has robust defenses to hostile
Internet attacks such as denial of service (DoS), which can be used to take down the
network. Moreover, the EDS cannot be used to bring down other devices on the network.
The EDS can be used with Lantronix’s Secure Com Port Redirector (SCPR) to encrypt
COM port-based communications between PCs and virtually any electronic device.
SCPR is a Windows application that creates a secure communications path over a
network between the computer and serial-based devices that are traditionally controlled
via a COM port. With SCPR installed at each computer, computers that were formerly
“hard-wired” by serial cabling for security purposes or to accommodate applications that
only understood serial data can instead communicate over an Ethernet network or the
Internet.
The EDS also supports a variety of popular cipher technologies including:
Advanced Encryption Standard (AES)
Triple Data Encryption Standard (3DES)
RC4
Hashing algorithms such as Secure Hash Algorithm (SHA-1) and MD5
Troubleshooting Capabilities
The EDS offers a comprehensive diagnostic toolset that lets you troubleshoot problems
quickly and easily. Available from the Web Manager, CLI, and XML interfaces, the
diagnostic tools let you:
View critical hardware, memory, MIB-II, buffer pool, and IP socket information.
Perform ping and traceroute operations.
Conduct forward or backup DNS lookup operations.
View all processes currently running on the EDS, including CPU utilization and
total stack space available.
EDS Device Servers User Guide 17
Applications
EDS device servers deliver simple, reliable, and cost-effective network connectivity for all
your serial devices and address the growing need to connect individual devices to the
network over industry-standard Ethernet connections. The EDS is ideal for a variety of
applications, including:
Building automation/security
Industrial automation
Medical/healthcare
Retail automation/point-of-sale
Console management
Traffic management
Building Automation/Security
Automating, managing, and controlling many different aspects of a building is possible
with the EDS. It can overcome the hurdle of stand-alone networks or individual control
systems that are not able to communicate with each other, and not able to share vital
data, in a cost effective way.
2: Introduction
The EDS can also be used to manage equipment and devices centrally over a new or
existing Ethernet network to improve the safety and comfort of building occupants, while
lowering heating, ventilating, air conditioning (HVAC), lighting, and overall energy
operating costs through centralized management and monitoring.
Industrial Automation
Today’s manufacturing facilities face the common challenges of productivity
improvements, inventory management, and quality control. From warehouse to
automotive environments, the need to attach the following devices, whether new or
legacy, continues to grow:
Programmable Logic Controllers (PLCs), Computer Numeric Control and Direct
Numeric Control (CNC/DNC) equipment, process and quality-control equipment
Pump controllers
Bar-code readers and scanners, operator displays, scales, and weighing stations
Printers, machine-vision systems, and other types of manufacturing equipment
The EDS is well suited to deliver network connectivity to all of these devices.
Medical/Healthcare
Hospitals, clinics, and laboratories face rapidly growing needs to deliver medical
information accurately, quickly, and easily, whether at bedside, the nurse’s station, or
anywhere in the facility. The goal to improve healthcare services, however, is balanced
with the need to keep the bottom line from exceeding already constrained budgets.
The EDS can network enable medical equipment and devices using the hospital’s
existing Ethernet network to improve patient care and slash operating costs. This allows
EDS Device Servers User Guide 18
2: Introduction
medical staff members to easily monitor and control equipment over the network, whether
it is located at the point of care, in a laboratory, or somewhere else in the building, all
resulting in improved quality of service and reduced operational costs.
Retail Automation/Point-of-Sale
Having the right solution in the store to manage deliveries, track orders, and keep pricing
current are all improvements that the EDS can offer to make retail operations more
successful. From big to small, one store to thousands of outlets, the EDS can empower
point-of-sale (POS) devices to share information across the network effectively.
With the EDS, retailers can increase and streamline productivity quickly and easily by
network-enabling serial devices like card swipe readers, bar-code scanners, scales, cash
registers, and receipt printers.
Terminal Server/Console Management
Remote offices can have routers, PBXs, servers and other networking equipment that
require remote management from the corporate facility. The EDS easily attaches to the
serial ports on a server, Private Branch Exchange (PBX), or other networking equipment
to deliver central, remote monitoring and management capability.
With the menu system on the EDS, connections to the console ports of the attached
devices as well as Ethernet hosts, such as Unix servers or another EDS, can easily be
picked from a user-defined menu. This allows console ports across multiple networks to
be accessed from one EDS.
Traffic Management
With the ubiquity of Ethernet networks, managing cities over Ethernet is now within
reach. The EDS provides an easy conversion from serial ports on traffic cameras,
billboards, and traffic lights to Ethernet. The EDS obviates the need for long-haul
modems and enables the management of traffic equipment over the network.
EDS Device Servers User Guide 19
3: Installation: EDS4100
This chapter describes how to install the EDS4100 device server.
Package Contents
Your EDS4100 package includes the following items:
One EDS4100 device server
One DB9F-to-DB9Fnull modem cable
One product CD that includes this User Guide, the Command Reference, and the
Quick Start guide.
A printed Quick Start guide
Your package may also include a power supply.
User-Supplied Items
To complete your EDS4100 installation, you need the following items:
RS-232 and/or RS-422/485 serial devices that require network connectivity:
− Each EDS4100 serial port supports a directly connected RS-232 serial
device.
− Ports 1 and 3 also support RS-422/485 and can accommodate 31 full-load
RS-485 multi-drop devices or 127 quarter-load RS-485 multi-drop devices
per port, for a total of 62 full-load or 254 quarter-load devices.
A serial cable for each serial device to be connected to the EDS4100. One end of
the cable must have a female DB9 connector to connect to the EDS4100 serial
port. The connector on the other end must be configured for your serial device.
Note: To connect an EDS4100 serial port to another DTE device, you will need a
null modem cable, such as the one supplied in your EDS4100 package. To
connect the EDS4100 serial port to a DCE device, you will need a straightthrough (modem) cable.
An available connection to your Ethernet network and an Ethernet cable.
A working power outlet if the unit will be powered from an AC outlet.
EDS Device Servers User Guide 20
Identifying Hardware Components
Figure 3-1 shows the hardware components on the front of the EDS4100. Figure 3-2
shows the hardware components on the back of the EDS4100.
Figure 3-1. Front View of the EDS4100
3: Installation: EDS4100
Figure 3-2. Back View of the EDS4100
The bottom of the EDS4100 (not shown) has a product information label. This label
contains the following information:
Bar code
Serial number
Product ID (name)
Product description
Hardware address (also referred to as Ethernet or MAC address)
Agency certifications
EDS Device Servers User Guide 21
3: Installation: EDS4100
Serial Ports
The front of the EDS4100 has four male DB9 serial ports. These ports allow you to
connect up to four standard serial devices:
All four serial ports support RS-232 devices. See Figure 3-3 for pin assignments.
Serial ports 1 and 3 also support RS-422 and RS-485 serial devices.
See Figure 3-4 for pin assignments.
All four serial ports are configured as DTE and support baud rates up to 230,400 baud.
Figure 3-3. RS-232 Serial Port Pins (Serial Ports 1, 2, 3, 4)
Figure 3-4. RS-422/RS-485 Serial Port Pins
RS-422/485 4-wire Pin Assignments
(Serial Ports 1 and 3)
Note: Multi-drop connections are supported in 2-wire mode only.
RS-485 2-wire Pin Assignments
(Serial Ports 1 and 3)
EDS Device Servers User Guide 22
3: Installation: EDS4100
Ethernet Port
The back panel of the EDS4100 provides an RJ45 Ethernet port. This port can connect to
an Ethernet (10 Mbps) or Fast Ethernet (100 Mbps) network. The Speed LED on the
back of the EDS4100 shows the connection of the attached Ethernet network. The
EDS4100 can be configured to operate at a fixed Ethernet speed and duplex mode (halfor full-duplex) or auto-negotiate the connection to the Ethernet network.
Terminal Block Connector
The back of the EDS4100 has a terminal block screw connector for attaching to an
appropriate power source, such as those used in automation and manufacturing
industries. The terminal block connector supports a power range from 42 VDC to
56 VDC. It can be used with the EDS4100’s barrel power connector and PoE capabilities
as a redundant power source to the unit.
Figure 3-5. Terminal Block Connector Pin Assignments
Pin Signal
Top V+
Middle V-
Bottom Ground
LEDs
Light-emitting diodes (LEDs) on the front and back panels show status information.
Back panel. Each serial port has a Transmit and a Receive LED. The Ethernet
connector has Speed and Activity LEDs. In addition, the back panel has a Power
LED and a Status LED.
Front panel. The front panel has a green Power LED.
The table below describes the LEDs on the back of the EDS4100.
Figure 3-6 .Back Panel LEDs
LED Description
Transmit (green) Blinking = EDS is transmitting data on the serial port.
Receive (yellow) Blinking = EDS is receiving data on the serial port.
Power (green) On = EDS is receiving power.
Status (yellow) Fast blink = initial startup (loading OS).
Slow blink (once per second) = operating system startup.
On = unit has finished booting.
On = EDS is connected to a 100 Mbps Fast Ethernet network. Speed (yellow)
Off = EDS is connected to a 10 Mbps Ethernet network.
Activity (green) Blink = EDS is sending data to or receiving data from the Ethernet
network.
EDS Device Servers User Guide 23
Reset Button
The reset button is on the back of the EDS4100, to the left of the power connector.
Pressing this button reboots the EDS4100 and terminates all data activity occurring on
the serial and Ethernet ports.
Physically Installing the EDS4100
Finding a Suitable Location
Place the EDS4100 on a flat horizontal or vertical surface. The EDS4100 comes
with mounting brackets installed for vertically mounting the unit, for example, on
a wall.
If using AC power, avoid outlets controlled by a wall switch.
Connecting the EDS4100
Observe the following guidelines when attaching serial devices:
All four EDS4100 serial ports support RS-232 devices.
3: Installation: EDS4100
Alternatively, ports 1 and 3 support RS-422/485 devices.
To connect an EDS4100 serial port to another DTE device, use a null modem
cable.
To connect the EDS4100 serial port to a DCE device, use a straight-through
(modem) cable.
To connect the EDS4100 to one or more serial devices, use the following procedure.
Note: We recommend you power off the serial devices that will be connected to
the EDS4100.
1. For each serial device you want to connect, attach a serial cable between the
EDS4100 and your serial device.
2. Connect an Ethernet cable between the EDS4100 Ethernet port and your Ethernet
network.
3. Use one or more of the following methods to power-up the EDS4100:
PoE method: Power is supplied to the EDS4100 over the Ethernet cable by
either an Ethernet switch or a midspan device.
Barrel power connector: Insert the round end of the supplied power cord into
the barrel power connector on the back of the EDS4100. Plug the other end into
an AC wall outlet. The barrel power connector supports a power range of 9 to 30
VDC.
Terminal block connector: Attach the power source to the terminal block
connector on the back of the EDS4100. The terminal block connector supports a
power range of 42 VDC to 56 VDC.
EDS Device Servers User Guide 24
3: Installation: EDS4100
The EDS4100 powers up automatically. After power-up, the self-test begins and
Evolution OS™ starts.
Note: These power-up methods can be used together to provide a redundant
power source to the unit.
4. Power up all connected serial devices.
Figure 3-7. Example of EDS4100 Connections
EDS Device Servers User Guide 25
6
4: Installation: EDS8PR, EDS16PR and EDS32PR
This chapter describes how to install the EDS8PR, EDS16PR and EDS32PR device
servers.
Package Contents
Your EDS package includes the following items:
One EDS device server (EDS8PR, EDS16PR or EDS32PR)
One RJ45-to-DB9F serial cable
One product CD that includes this User Guide, the Command Reference, and the
Quick Start guide.
A printed Quick Start guide
Your package may also include a power supply.
User-Supplied Items
To complete your EDS8/16/32PR installation, you need the following items:
RS-232 serial devices that require network connectivity. Each EDS8/16/32PR
serial port supports a directly connected RS-232 serial device.
A serial cable for each serial device to be connected to the EDS8/16/32PR. All
devices attached to the device ports support the RS-232C (EIA-232) standard.
Category 5 cabling with RJ45 connections is used for the device port
connections.
Note: To connect an EDS8/16/32PR serial port to a DTE device, you
need a DTE cable, such as the one supplied in your EDS8/16/32PR
package, or an RJ45 patch cable and DTE adapter. To connect the
EDS8/16/32PR serial port to a DCE device, you need a DCE (modem)
cable, or an RJ45 patch cable and DTE adapter. For a list of the
Lantronix cables and adapters you can use with the EDS8/16/32PR, see
E: Lantronix Cables and Adapters.
An available connection to your Ethernet network and an Ethernet cable.
A working power outlet if the unit will be powered from an AC outlet.
EDS Device Servers User Guide 2
4: Installation: EDS8PR, EDS16PR and EDS32PR
Identifying Hardware Components
Figure 3-1 shows the hardware components on the front of the EDS16PR. Figure 3-2
shows the hardware components on the back of the EDS16PR.
Figure 4-1. Front View of the EDS16PR
Figure 4-2. Back View of the EDS16PR
The bottom of the EDS8/16/32PR has a product information label. This label contains the
following information:
Bar code
Serial number
EDS Device Servers User Guide 27
4: Installation: EDS8PR, EDS16PR and EDS32PR
Product ID (name)
Product description
Hardware address (also referred to as Ethernet or MAC address)
Agency certifications
Serial Ports
The EDS8PR has 8 serial ports, the EDS16PR has 16 serial ports, and the EDS32PR
has 32 serial ports. All serial ports are configured as DTE and support baud rates up to
230,400 baud.
Figure 4-3. RJ45 Serial Port
Ethernet Port
The back panel of the EDS8/16/32PR provides an RJ45 Ethernet port. This port can
connect to an Ethernet (10 Mbps) or Fast Ethernet (100 Mbps) network. The Speed LED
on the back of the EDS8/16/32PR shows the connection of the attached Ethernet
network. The EDS8/16/32PR can be configured to operate at a fixed Ethernet speed and
duplex mode (half- or full-duplex) or auto-negotiate the connection to the Ethernet
network.
LEDs
Light-emitting diodes (LEDs) on the front and back panels show status information.
Back panel. Each serial port has a Transmit and a Receive LED. The Ethernet
connector has a Speed and an Activity LEDs. In addition, the back panel has a
Power LED and a Status LED.
Front panel. The front panel has a green Power LED.
The table below describes the LEDs on the back of the EDS.
Back Panel LEDs
LED Description
Transmit (green) Blinking = EDS is transmitting data on the serial port.
Receive (yellow) Blinking = EDS is receiving data on the serial port.
EDS Device Servers User Guide 28
4: Installation: EDS8PR, EDS16PR and EDS32PR
LED Description
Power (green) On = EDS is receiving power.
Status (yellow) Fast blink = initial startup (loading OS).
Slow blink (once per second) = operating system startup.
On = unit has finished booting.
On = EDS is connected to a 100 Mbps Fast Ethernet network. Speed (yellow)
Off = EDS is connected to a 10 Mbps Ethernet network.
Activity (green) Blink = EDS is sending data to or receiving data from the Ethernet
network.
Reset Button
The reset button is on the back of the EDS8/16/32PR, to the left of the power connector.
Pressing this button for 2-to-3 seconds reboots the EDS8/16/32PR and terminates all
data activity occurring on the serial and Ethernet ports.
Physically Installing the EDS8/16/32PR
Finding a Suitable Location
You can install the EDS8/16/32PR either in an EIA-standard 19-inch rack (1U
tall) or as a desktop unit.
If using AC power, avoid outlets controlled by a wall switch.
Connecting the EDS8/16/32PR
All serial ports support RS-232 devices.
To connect the EDS8/16/32PR to one or more serial devices, use the following
procedure:
Note: We recommend you power off the serial devices that will be connected to
the EDS8/16/32PR.
1. For each serial device you want to connect, attach a CAT 5 serial cable between the
EDS8/16/32PR and your serial device. For a list of cables and adapters you can use
with the EDS8/16/32PR, see E: Lantronix Cables and Adapters.
2. Connect an Ethernet cable between the EDS8/16/32PR Ethernet port and your
Ethernet network.
3. Insert the supplied power cord into the power connector on the back of the
EDS8/16/32PR. Plug the other end into an AC wall outlet. After power-up, the selftest begins.
4. Power up all connected serial devices.
EDS Device Servers User Guide 29
4: Installation: EDS8PR, EDS16PR and EDS32PR
Figure 4-4. Example of EDS16PR Connections
EDS Device Servers User Guide 30
5: Getting Started
Using DeviceInstaller
The product CD included with your EDS package includes a program called
DeviceInstaller. This program lets you view the properties of the EDS and launch EDS
configuration methods.
Note: You can also assign an IP address and other basic network settings. For
instructions, see the online Help.
Starting DeviceInstaller
Follow the prompts to install DeviceInstaller.
To run DeviceInstaller:
1. From the Windows Start menu, click StartÆPrograms, LantronixÆ
DeviceInstallerÆDeviceInstaller.
2. Click the EDS folder. The list of Lantronix EDS devices available displays.
3. Expand the list by clicking the + symbol next to the icon for the desired EDS model.
4. To view the configuration of the EDS, select the unit by clicking its IP address.
EDS Device Servers User Guide 31
Figure 5-1. Lantronix DeviceInstaller
5: Getting Started
Viewing EDS Properties
To view the EDS’s properties, in the right window, click the Device Details tab. The
current properties for the EDS display. Figure 5-2 lists the EDS properties and whether
they are user configurable or read only. The properties of the other EDS models are
similar except for the number of ports.
Note: On this screen, you can change Group and Comments. You can only
view the remaining properties. To change them, use one of the EDS
configuration methods described on page 34.
EDS Device Servers User Guide 32
Figure 5-2. EDS4100 Properties
Property Description
Name*
Displays the name of the EDS, if configured.
5: Getting Started
Group*
Comments
Device Family Displays the EDS’s device family type as EDS.
Type Displays the device type as EDS.
ID
Hardware Address
Firmware Version
Extended Version
Online Status
IP Address
IP Address was Obtained
Subnet Mask
Gateway
Number of Ports
Enter a group to categorize the EDS. Double-click
on the field, enter the value, and press Enter to
complete.
Enter comments for the EDS. Double-click on the
field, type in the value, and press Enter to
complete.
Displays the EDS’s ID embedded within the box.
Displays the EDS’s hardware address.
Displays the firmware currently installed on the
EDS.
Displays the full version of firmware currently
installed on the UDS.
Displays the EDS status.
Online = the EDS is online.
Offline = the EDS is offline.
Unreachable = the EDS is on a different subnet.
Busy = the EDS is currently performing a task.
Displays the EDS’s current IP address. To change
it, click the Assign IP button on the DeviceInstaller
menu bar.
Displays the method by which the IP address was
obtained:
Statically (assigned manually)
Dynamically = one of the following is True:
Obtain via DHCP
Obtain via BOOTP
Displays the subnet mask specifying the network
segment on which the EDS resides.
Displays the IP address of the router of this
network. There is no default.
Displays the number of ports on this EDS.
Supports Email Triggers True indicates that the EDS supports email
triggers.
Telnet Enabled
Telnet Port
Web Enabled
Web Port
Displays whether Telnet is enabled on this EDS.
Displays the EDS’s port for Telnet sessions.
Displays whether Web Manager access is enabled
on this EDS.
Displays the EDS’s port for Web Manager
configuration.
EDS Device Servers User Guide 33
Property Description
Maximum Baud Rate
Supported
Firmware Upgradeable Displays True if the EDS firmware is upgradeable.
*Note: These parameters are stored on the computer running DeviceInstaller.
Configuration Methods
When your EDS boots for the first time, it automatically loads its factory-default
configuration settings. For a list of the factory-default configuration settings, see
A: Factory Default Configuration.
For convenience, there are three ways to configure the EDS.
Using the Web Manager interface
Using the CLI through a SSH/Telnet session or an EDS8/16/32PR serial port.
Using the XML interface
These unified configuration methods provide access to all features, giving you the same
level of control over the EDS8/16/32PR regardless of the configuration method you
choose.
5: Getting Started
Displays the EDS’s maximum baud rate.
Note: The EDS may not be operating at this rate.
Configuring from the Web Manager Interface
With this method, you can use a Web browser to configure the EDS using a Web-based
graphical point-and-click interface. The advantages to this method are ease of use and
location independence. With this method, you can configure the EDS from any location
that has access to a Web browser and the Internet.
Configuring via an SSH/Telnet Session or Serial Port Using the
CLI
The EDS provides a command-line interface (CLI) designed to enable the configuration
and systems management functions that can also be performed through the Web
Manager and XML interfaces. To configure the EDS using the CLI, you must either start
an SSH or Telnet session or use a terminal or a computer attached to one of the EDS
serial ports or the console port on the EDS8/16/32PR.
The difference between the SSH/Telnet and serial interfaces is the physical connection
paths to the EDS. With an SSH/Telnet session, you can configure the unit without having
to be in the same location as the EDS. The serial-interface method, however, requires a
terminal or computer to be attached to an available EDS serial port. This means the
terminal or computer must be in the same location as the EDS.
Note: Before using SSH, you must first load or generate RSA or DSA keys.
For more information, see the EDS Command Reference on the product CD or the
Lantronix web site (www.lantronix.com
).
EDS Device Servers User Guide 34
5: Getting Started
Configuring from the XML Interface
The EDS also provides an XML interface that can be used to perform configuration and
systems-management functions. This configuration method lets you automate the
configuration process using XML configuration files. This method is particularly
convenient if you have multiple EDS device servers that will use the same configuration
settings, because you can define a configuration profile that can be imported by, and
shared among, your other EDS device servers.
For more information, see the EDS Command Reference on the product CD or the
Lantronix web site (www.lantronix.com
).
EDS Device Servers User Guide 35
6: Configuration Using the Web Manager
This chapter describes how to configure the EDS using the Web Manager, Lantronix’s
browser-based configuration tool. The unit’s configuration is stored in nonvolatile memory
and retained without power. All changes take effect immediately, unless otherwise noted.
Accessing the Web Manager through a Web Browser
The following procedure describes how to log into the EDS using a standard Web
browser.
Note: Alternatively, access the Web Manager by selecting the Web
Configuration tab from DeviceInstaller (see Viewing EDS Properties on
page 32).
To access Web Manager:
1. Open a standard Web browser such as Netscape Navigator 6.x and later, Internet
Explorer 5.5. and later, Mozilla Suite, Mozilla Firefox, or Opera.
2. Enter the IP address of the EDS in the address bar. The EDS’s built-in security
requires you to log in with your user name and password.
Figure 6-1. Prompt for User Name and Password
3. Enter your user name and password in the appropriate fields. The Device Status
page displays (see Figure 6-2). This page is the Web Manager home page.
EDS Device Servers User Guide 36
6: Configuration Using the Web Manager
Note: The factory-default user name is admin and the factory-default password
is PASS. After you log in to the Web Manager, we recommend you use the FTP
page to change the default FTP password (see page 79), the HTTP
Authentication Page to change the HTTP authentication password (see page 85),
and the Command Line Interface Configuration Page to change the CLI
password (see page 129).
Figure 6-2. Web Manager Device Status Page
EDS Device Servers User Guide 37
6: Configuration Using the Web Manager
Navigating Through the Web Manager
The Web Manager provides an intuitive point-and-click interface. A menu bar at the left
side of each page provides links you can click to navigate from one page to another.
Some pages are read-only, while others let you change configuration settings.
Note: There may be times when you must reboot the EDS for the new
configuration settings to take effect. The chapters that follow indicate when a
change requires a reboot.
Figure 6-6 shows the structure of the multilevel Web Manager configuration pages.
Summary of Web Manager Pages
Page Description See
Page
Status Displays EDS product information and network, line, and
tunneling settings.
Network Lets you configure the current network interface on the EDS. 48
Line Displays statistics and lets you change the current configuration
and Command mode settings of 4 serial lines for the EDS4100,
8 tunnels for the EDS8PR,16 serial lines for the EDS16PR, and
32 serial lines for the EDS32PR.
Tunnel Displays and lets you change the current configuration settings for
up to 4 tunnels for the EDS4100, 8 tunnels for the EDS8PR, 16
tunnels for the EDS16PR, and 32 tunnels for the EDS32PR.
Terminal Displays and lets you change current settings for a terminal. 72
Host Displays and lets you change settings for a host on the network. 73
DNS Displays the current configuration of the DNS subsystem and lets
you change primary and secondary DNS servers.
SNMP Displays and lets you change the current Simple Network
Management Protocol (SNMP) configuration settings.
FTP Displays statistics and lets you change the current configuration
for the File Transfer Protocol (FTP) server.
TFTP Displays statistics and lets you change the current configuration
for the Trivial File Transfer Protocol (TFTP) server.
Syslog Lets you specify the severity of events to log and the server and
ports to which the syslog should be sent.
HTTP Displays HyperText Transfer Protocol (HTTP) statistics and lets
you change the current configuration and authentication settings.
RSS Displays and lets you change current Really Simple Syndication
(RSS) settings.
CLI Displays Command Line Interface (CLI) statistics and lets you
change the current CLI configuration settings.
Email Displays email statistics and lets you clear the email log,
configure email settings, and send an email.
LPD Displays LPD (Line Printer Daemon) Queue statistics and lets you
configure the LPD and print a test page.
47
51
56
76
77
79
80
81
81
88
89
125
89
EDS Device Servers User Guide 38
6: Configuration Using the Web Manager
Page Description See
Page
SSH Displays and lets you change the configuration settings for SSH
server host keys, SSH server authorized users, SSH client known
hosts, and SSH client users.
SSL Lets you upload an existing certificate or create a new self-signed
certificate.
XML Lets you export XML configuration and status records, and import
XML configuration records.
Filesystem Displays filesystem statistics and lets you browse the filesystem
to create a file or directory, upload files using HTTP, copy a file,
move a file, or perform TFTP actions.
Protocol
Stack
IP Address
Filter
Query Port Displays and lets you change configuration settings for the query
Diagnostics Lets you perform various diagnostic procedures. 105
Lets you perform lower level network stack-specific activities. 136
Lets you specify all the IP addresses and subnets that are
allowed to send data to this device.
port.
125
101
131
105
110
109
RTC Displays and lets you set the real time clock. 122
System Lets you reboot the EDS, restore factory defaults, upload new
firmware, change the EDS’s long and short names, and change
the time setting.
123
EDS Device Servers User Guide 39
6: Configuration Using the Web Manager
Figure 6-3. Web Manager Menu Structure (1 of 5)
(continued on next page)
EDS Device Servers User Guide 40
6: Configuration Using the Web Manager
Figure 6-4. Web Manager Menu Structure (2 of 5)
(continued on next page)
EDS Device Servers User Guide 41
6: Configuration Using the Web Manager
Figure 6-5. Web Manager Menu Structure (3 of 5)
(continued on next page)
EDS Device Servers User Guide 42
6: Configuration Using the Web Manager
Figure 6-6. Web Manager Menu Structure (4 of 5)
(continued on next page)
EDS Device Servers User Guide 43
6: Configuration Using the Web Manager
Figure 6-7. Web Manager Menu Structure (5 of 5)
EDS Device Servers User Guide 44
r
r
Header
Menu Ba
6: Configuration Using the Web Manager
Understanding the Web Manager Pages
Figure 6-8 shows the areas of the Web Manager page.
Figure 6-8. Components of the Web Manager Page
Entry Area
Information
Area
Current
Configuration
Foote
The header always displays at the top of the page. The header information remains the
same regardless of the page displayed.
The menu bar always displays at the left side of the page, regardless of the page
displayed. The menu bar lists the names of the pages available in the Web Manager. To
display a page, click it in the menu bar.
EDS Device Servers User Guide 45
6: Configuration Using the Web Manager
Figure 6-9. EDS Menu
When you click the name of a page in the menu bar, the page displays in the main area.
The main area of most pages is divided into two sections:
The top section lets you select or enter new configuration settings. After you
change settings, click the Submit button to apply the change. Some settings
require the EDS to be rebooted before the settings take effect. Those settings
are identified in the appropriate sections in this chapter.
The bottom section shows the current configuration.
The information area shows information or instructions associated with the page.
The footer displays at the bottom of the page. It contains copyright information and a link
to the Lantronix home page.
EDS Device Servers User Guide 46
Device Status Page
The Device Status page is the first page that displays when you log into the Web
Manager. It also displays when you click the Status link in the menu bar. This read-only
page shows the EDS product information, network settings, line settings, and tunneling
settings.
Figure 6-10. Device Status Page (EDS4100)
6: Configuration Using the Web Manager
EDS Device Servers User Guide 47
7: Network, Line, Tunnel, and Terminal Settings
Network Configuration Page
Clicking the Network link in the menu bar displays the Network Configuration page. Here
you can change the following EDS network configuration settings:
BOOTP and DHCP client
IP address, network mask, and gateway
MAC address
Hostname and domain
DHCP client ID
Ethernet transmission speed
EDS Device Servers User Guide 48
7: Network, Line, Tunnel, and Terminal Settings
Figure 7-1. Network Configuration
EDS Device Servers User Guide 49
7: Network, Line, Tunnel, and Terminal Settings
The bottom part of this page shows the current configuration. The After Reboot column
in the Current Configuration section of this page shows the settings that will take effect
the next time the EDS reboots.
Changes to the following settings require the EDS to be rebooted before the new settings
take effect:
BOOTP Client
DHCP Client
IP Address
Network Mask
MAC Address
DHCP Client ID
Notes: Some settings in the Current Configuration section, such as IP
Address and Network Mask have a Delete link you can click to delete the
setting. If you click this link, a warning message asks whether you are sure you
want to delete the setting. Click OK to delete the setting or Cancel to keep it.
Network Configuration Page Settings
Network
Description
Configuration
Page Settings
BOOTP Client Select whether the EDS should send BOOTP requests. Changing this
value requires the EDS to be rebooted. Choices are:
On = EDS sends BOOTP requests on a DHCP-managed network. This
setting overrides the configured IP address, network mask, gateway,
host name, and domain settings. If DHCP is set to On, the EDS
automatically uses DHCP, regardless of whether BOOTP Client is set to
On.
Off = EDS does not send BOOTP requests.
DHCP Client Select whether the EDS IP address is automatically assigned by a DHCP
server. Changing this value requires the EDS to be rebooted. Choices
are:
On = EDS receives its IP address automatically from a DHCP server,
regardless of the BOOTP Client setting. This setting overrides the
configured IP address, network mask, gateway, host name, and domain
settings.
Off = EDS does not receive its IP address automatically.
IP Address Enter the EDS static IP address. The IP address consists of four octets
separated by a period and is used if BOOTP and DHCP are both set to
Off. Changing this value requires the EDS to be rebooted.
Note: When DHCP is enabled, the EDS tries to obtain an IP address
from DHCP. If it cannot, the EDS uses an Auto IP address in the range of
169.254.xxx.xxx.
EDS Device Servers User Guide 50
7: Network, Line, Tunnel, and Terminal Settings
Network
Description
Configuration
Page Settings
Network Mask Enter the EDS subnet mask. The subnet mask consists of four octets
separated by a period. Changing this value requires the EDS to be
rebooted.
Note: When DHCP is enabled, the EDS tries to obtain a network mask
from DHCP. If it cannot, the EDS uses a network mask of 255.255.0.0.
Gateway Enter the router IP address from the local LAN the EDS is on. The
address consists of four octets separated by a period.
MAC Address Enter the EDS MAC address. Default is factory set. Changing this value
may cause unexpected results. Changing this value requires the EDS to
be rebooted.
Hostname Enter the EDS host name. The host name can be up to 31 characters
with no spaces.
Domain Enter the EDS domain name.
DHCP Client ID Enter a DHCP ID if used by the DHCP server. Changing this value
requires the EDS to be rebooted.
Ethernet Link Select the Ethernet link speed. Default is Auto.
Line Settings Pages
The Line Settings page displays the status and statistics for each of the serial lines
(ports). This page also lets you change the character format and command mode settings
for the serial lines.
To select a line:
EDS4100: Click Line 1, Line 2, Line 3, or Line 4 at the top of the page.
EDS8/16/32PR: Select the line from the Select Line drop-down list at the top of the
page.
After you select a serial line, you can click Statistics, Configuration, or Command
Mode to view and change the settings of the selected serial line. Because all serial lines
operate independently, you can specify different configuration settings for each line.
EDS Device Servers User Guide 51
7: Network, Line, Tunnel, and Terminal Settings
Line – Statistics Page
The Line – Statistics page displays when you click Line in the menu bar. It also displays
when you click Statistics at the top of one of the other Line Settings pages. This readonly page shows the status and statistics for the serial line selected at the top of this
page.
Figure 7-2. Line – Statistics Page
EDS Device Servers User Guide 52
7: Network, Line, Tunnel, and Terminal Settings
Line - Configuration Page
If you click Configuration at the top of one of the Line Settings pages, the Line –
Configuration page displays. This page shows the configuration settings for the serial line
selected at the top of the page and lets you change the settings for that serial line.
Figure 7-3. Line – Configuration Page
EDS Device Servers User Guide 53
7: Network, Line, Tunnel, and Terminal Settings
Line – Configuration Page
Line –
Description
Configuration
Page Settings
Name (optional) Enter a name for the serial port. The name may have up to 25
characters. Lines with names display in the Login Connect
Menu.
Status Select to enable or disable the selected EDS serial port.
Protocol From the drop-down list, select the type of protocol used on the
line. Choices are:
Tunnel = for connecting two serial devices across a network.
LPD = (Line Printer Daemon) for communicating with a printer.
None = use only with CLI and Login Connect Menu.
Interface
(EDS4100 only)
Baud Rate Select the baud rate for the currently selected serial port.
Parity Select the parity used by the currently selected serial line.
Data Bits Select the number of data bits used by the currently selected
Stop Bits Select the number of stop bits used by the currently selected
Flow Control Select the flow control method used by the currently selected
From the drop-down list, select the type of serial interface.
Choices are:
RS232
RS485 Half-Duplex
RS485 Full-Duplex
Choices are:
300 baud to 230,400 baud. Default is 9600 baud.
Custom = lets you enter in the Custom text box a speed other
than those shown.
Choices are:
None (default)
Even
Odd
serial line. Choices are:
7
8 (default)
serial line. Choices are:
1 (default)
2
serial line. Choices are:
None(default)
Hardware
Software
EDS Device Servers User Guide 54
7: Network, Line, Tunnel, and Terminal Settings
Line –
Configuration
Page Settings
Xon char Character to use to initiate a flow of data.
Xoff char
Line – Command Mode Page
If you click Command Mode at the top of one of the Line Settings pages, the Line –
Command Mode page displays. This page shows the command mode settings for the
serial line selected at the top of the page and lets you change the settings for that serial
line.
Figure 7-4. Line – Command Mode Page
Description
When Flow Control is set to Software, specify Xon char. Prefix
a decimal character with \ or a hexadecimal character with 0x, or
provide a single printable character. The default Xon char is
0x11.
When Flow Control is set to Software, specify Xoff char. Prefix
a decimal character with \ or a hexadecimal character with 0x, or
provide a single printable character. The default Xoff char is
0x13.
EDS Device Servers User Guide 55
7: Network, Line, Tunnel, and Terminal Settings
Line – Command Mode Page
Line –
Description
Command
Mode Page
Settings
Mode Select the method of enabling command mode or choose to disable
command mode. Choices are:
Always = immediately enables command mode for the serial line.
Use Serial String = enables command mode when the serial string is
read on the serial line during boot time.
Disabled = Disables command mode.
Wait Time Enter the maximum number of milliseconds the selected serial line waits
to receive the specific serial string at boot time to enter command mode.
Default is 5000 milliseconds.
Serial String Enter the serial string that places the serial line into command mode.
After entering a string, use the buttons to indicate whether the string is a
text or binary value.
Echo Serial
String
Signon
Message
Select whether the serial line echoes the specified serial string at boot
time. Choices are:
Yes = echoes the characters specified in the Serial String text box.
No = does not echo the characters specified in the Serial String text
box.
Enter the boot-up signon message to be sent over the serial line at boot
time. After entering the message, select whether the string is a text or
binary value.
Tunnel Pages
The Tunnel pages let you view and configure settings for tunnels. (For more information,
see Tunneling on page 161.)
To select a tunnel:
EDS4100: Click Tunnel 1, Tunnel 2, Tunnel 3, or Tunnel 4 at the top of the page.
EDS8/16/32PR: Select the tunnel from the Select Tunnel drop-down list at the top of the
page.
After you select a tunnel, you can click Statistics, Serial Settings, Start/Stop Chars,
Accept Mode, Connect Mode, Disconnect Mode, Packing Mode, Modem Emulation,
or AES Keys to view and change the settings of the selected tunnel. Because all tunnels
operate independently, you can specify different configuration settings for each tunnel.
Tunnel – Statistics Page
The Tunnel – Statistics page displays when you click Tunnel in the menu bar. It also
displays when you click Statistics at the top of one of the other Tunnel pages. This readonly page shows the status and statistics for the tunnel currently selected at the top of
this page.
EDS Device Servers User Guide 56
7: Network, Line, Tunnel, and Terminal Settings
Figure 7-5. Tunnel - Statistics Page
Tunnel – Serial Settings Page
If you click Serial Settings at the top of one of the Tunnel pages, the Tunnel – Serial
Settings page displays. This page shows the settings for the tunnel selected at the top of
the page and lets you change the settings. If you change the Buffer Size value, the EDS
must be rebooted for the change to take effect. Changing the other values does not
require a reboot.
EDS Device Servers User Guide 57
7: Network, Line, Tunnel, and Terminal Settings
Under Current Configuration, Buffer Size has a Reset link that lets you reset the buffer
size value shown. If you click this link, a message tells you that you will have to reboot
the EDS. Click OK to proceed or Cancel to cancel the operation.
Figure 7-6. Tunnel – Serial Settings Page
EDS Device Servers User Guide 58
7: Network, Line, Tunnel, and Terminal Settings
Tunnel – Serial Settings Page
Tunnel –
Description
Serial
Settings Page
Line Settings Displays the current serial line settings (set on the Line-Configuration
page.)
Protocol Displays the currently selected protocol (set on the Line Configuration
page).
Buffer Size Enter the size of the buffer used to receive data on the serial line.
Range = 1 to 4096 bytes. Default is 2048 bytes. Changing this value
requires the EDS to be rebooted.
Wait for Read
Timeout
Read Timeout Enter the maximum number of milliseconds that the EDS waits for
DTR Select how DTR should be asserted. Choices are:
Select whether the EDS waits the entire Read Timeout value for incoming
data on the serial line. Waiting occurs even if there is data in the read
buffer ready to be processed. The Read Timeout is ignored only when the
read buffer completely fills with data. Choices are:
Enabled = waits the entire Read Timeout value for incoming data on the
serial line.
Disabled = does not wait the entire Read Timeout value for incoming data
(default).
incoming data on the serial line. Default is 200 milliseconds.
Asserted while connected = DTR is asserted whenever a connect or an
accept mode tunnel connection is active.
Continuously asserted = DTR is asserted regardless of the type and
status of the connection.
Tunnel – Start/Stop Characters Page
If you click Start/Stop Chars at the top of one of the Tunnel pages, the Tunnel –
Start/Stop Chars page displays. This page shows the start and stop characters used for
the tunnel selected at the top of the page and lets you change the settings for that tunnel.
EDS Device Servers User Guide 59
7: Network, Line, Tunnel, and Terminal Settings
Figure 7-7. Tunnel – Start/Stop Chars Page
Tunnel – Start/Stop Chars Page
Tunnel –
Description
Start/Stop Chars
Page Settings
Start Character Enter the start character. When this character is read on the
serial line, it either initiates a new connection (for a tunnel in
Connect mode) or enables a tunnel in Accept mode to start
listening for connections. Default is <none>.
Stop Character Enter the stop character. When this character is read on the
serial line, it disconnects an active tunnel connection. Default is
<none>.
Echo Start
Character
Echo Stop
Character
Select whether the start character is forwarded (or “echoed’)
through the selected tunnel when the serial line is read. Choices
are:
On = echo the start character on the selected tunnel when the
serial line is read.
Off = do not echo the start character. (default)
Select whether the stop character is echoed through the
selected tunnel when the serial line is read. Choices are:
On = echo the stop character on the selected tunnel when the
serial line is read.
Off = do not echo the stop character. (default)
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7: Network, Line, Tunnel, and Terminal Settings
Tunnel – Accept Mode Page
Accept Mode determines how the EDS “listens” for an incoming connection. If you click
Accept Mode at the top of one of the Tunnel pages, the Tunnel – Accept Mode page
displays. Here you can select the method for starting a tunnel in Accept mode and select
other settings for the tunnel selected at the top of the page.
Under Current Configuration, Local Port has a Reset link if it has been changed from
the default. If you click this link, a message tells you that your action may stop an active
connection. Click OK to proceed or Cancel to cancel the operation.
For more information about Accept mode, see Accept Mode on page 163.
Figure 7-8. Tunnel – Accept Mode Page
EDS Device Servers User Guide 61
7: Network, Line, Tunnel, and Terminal Settings
Tunnel – Accept Mode Page
Tunnel –
Description
Accept Mode
Page Settings
Mode Select the method used to start a tunnel in Accept mode. Choices are:
Disabled = do not accept an incoming connection.
Enabled = accept an incoming connection. (default)
Any Character = start waiting for an incoming connection when any
character is read on the serial line.
Start Character = start waiting for an incoming connection when the
start character for the selected tunnel is read on the serial line.
Modem Control Asserted = start waiting for an incoming connection as
long as the Modem Control pin (DSR) is asserted on the serial line until
a connection is made.
Modem Emulation = start waiting for an incoming connection when
triggered by modem emulation AT commands. Connect mode must also
be set to Modem Emulation (see Tunnel – Connect Mode on page 63).
Local Port Enter the number of the local port used to receive (or listen for) packets.
Default is 10001 for Tunnel 1, 10002 for Tunnel 2, and so forth.
Protocol Select the protocol to be used on the connection. Choices are:
TCP (default)
SSH = use this setting if security is a concern. When using SSH, both
the SSH Server Host Keys and SSH Server Authorized Users must be
configured. (See SSH on page 158.)
SSL =
Secure Socket Layer.
Telnet
TCP/AES = use for secure tunneling between two EDS’s or software
that supports AES such as the Secure Com Port Redirector. Secure
Com Port Redirector is on the CD that came with your EDS or on the
Lantronix Web Site (www.lantronix.com
Flush Serial Data Select whether the serial line is flushed when a connection is made.
Choices are:
Enabled = flush the serial line when a connection is made.
Disabled = do not flush the serial line. (default)
Block Serial Data Select whether incoming serial data should be discarded. This setting is
used for debugging purposes. Choices are:
On = discard all incoming serial data on the respective interface.
Off = do not discard all incoming serial data. (default)
Block Network
Data
Select whether incoming network data should be discarded. This setting
is used for debugging purposes. Choices are:
On = discard all incoming network data on the respective interface.
Off = do not discard all incoming network data. (default)
).
EDS Device Servers User Guide 62
7: Network, Line, Tunnel, and Terminal Settings
Tunnel –
Description
Accept Mode
Page Settings
TCP Keep Alive Specify the number of milliseconds the EDS waits during an inactive
connection before checking the status of the connection. If the EDS
does not receive a response from the remote host, it drops that
connection.
Email on Connect Select whether an email is sent when a connection is made.
None = do not send an email.
Email # = send an email corresponding to the tunnel number.
Email on
Disconnect
Password Enter a password that clients must send to the EDS within 30 seconds
Prompt for
Password
Select whether an email corresponding to the tunnel number is sent
when a connection is closed.
None = do not send an email.
Email # = send an email corresponding to the tunnel number.
from opening a network connection to enable data transmission.
The password can have up to 31 characters and must contain only
alphanumeric characters and punctuation. When set, the password sent
to the EDS must be terminated with one of the following: (a) 0x10 (LF),
(b) 0x00, (c) 0x13 0x10 (CR LF), or (d) 0x13 0x00.
Indicate whether the user should be prompted for the password upon
connection.
On = prompt for a password upon connection.
Off = do not prompt for a password upon connection.
Tunnel – Connect Mode Page
Connect Mode determines how the EDS initiates a connection to a remote host or device.
If you click Connect Mode at the top of one of the Tunnel pages, the Tunnel – Connect
Mode page displays. Here you can select the method for starting a tunnel in Connect
mode and select other settings for the tunnel selected at the top of the page.
Any configuration changes you make on the displayed page apply to the tunnel you
selected at the top of this page. For example, if Tunnel 1 is selected, any configuration
changes you make apply to tunnel 1.
Under Current Configuration, both Remote Address and Remote Port have a Delete
link that lets you delete the remote address and port number shown. If you click this link,
a message tells you that your action may stop an active connection. Click OK to proceed
or Cancel to cancel the operation.
For more information about Connect mode, see Connect Mode on page 162.
EDS Device Servers User Guide 63
7: Network, Line, Tunnel, and Terminal Settings
Figure 7-9. Connect Mode Page
EDS Device Servers User Guide 64
7: Network, Line, Tunnel, and Terminal Settings
Tunnel – Connect Mode Page
Tunnel – Connect
Description
Mode Page
Settings
Mode Select the method to be used to start a connection to a remote host
or device. Choices are:
Disabled = an outgoing connection is never started. (default)
Enabled = a connection is attempted until one is made. If the
connection gets disconnected, the EDS retries until a connection is
made.
Any Character = a connection is started when any character is read
on the serial line.
Modem Control Asserted = a connection is attempted as long as the
Modem Control pin (DSR) is asserted until a connection is made.
Start Character = a connection is attempted when the start character
for the selected tunnel is read on the serial line.
Modem Emulation = a connection is started when triggered by
modem emulation AT commands.
Remote Address Enter the address of the remote host to which the selected tunnel will
connect. Default is <none>.
Remote Port Enter the number of the remote port to which the selected tunnel will
connect. Default is <none>.
Local Port Enter the number of the local port that will participate in this tunnel.
Default is Port 1 = 10001, Port 2 = 10002, Port 3 = 10002, and Port 4
= 10004, and so forth.
Protocol Select the protocol to use on the connection. Choices are:
TCP (default)
UDP
SSH = use this setting if security is a concern. This setting requires
you to enter an SSH username.
SSL
Telnet
TCP/AES = use for secure tunneling by means of TCP between two
EDS devices or other devices that support AES.
UDP/AES = use for secure tunneling by means of UDP between two
EDS devices or other devices that support AES.
Reconnect Timer Enter the maximum number of milliseconds to wait before trying to
reconnect to the remote host after a previous attempt failed or the
connection was closed. Default is 15000 milliseconds.
Flush Serial Data Select whether to flush the serial line when a connection is made.
Choices are:
Enabled = flush the serial line when a connection is made.
Disabled = do not flush the serial line. (default)
SSH Username If you selected SSH as the protocol for this tunnel, enter the SSH
client user that is to be used for the SSH connection. Default is
<none>.
EDS Device Servers User Guide 65
7: Network, Line, Tunnel, and Terminal Settings
Tunnel – Connect
Description
Mode Page
Settings
Block Serial Data Select whether incoming block serial data should be discarded. This
setting is used for debugging purposes. Choices are:
On = discard all incoming serial data on the respective interface.
Off = do not discard all incoming serial data. (default)
Block Network Data Select whether incoming block network data should be discarded.
This setting is used for debugging purposes. Choices are:
On = discard all incoming network data on the respective interface.
Off = do not discard all incoming network data. (default)
TCP Keep Alive Specifies the number of milliseconds the EDS waits during an inactive
connection before checking the status of the connection. If the EDS
does not receive a response from the remote host, it drops that
connection.
Email on Connect Select whether email should be sent when a connection is made.
None = no email should be sent.
Email # = send an email corresponding to the tunnel number.
Email on Disconnect Select whether email should be sent when a connection is closed.
None = do not send an email
Email # = send an email corresponding to the tunnel number.
Tunnel – Disconnect Mode Page
If you click Disconnect Mode at the top of one of the Tunnel pages, the Tunnel –
Disconnect Mode page displays. Here you can select the disconnect method for the
tunnel selected at the top of the page. For more information about Disconnect mode, see
Disconnect Mode on page 163.
EDS Device Servers User Guide 66
7: Network, Line, Tunnel, and Terminal Settings
Figure 7-10. Tunnel – Disconnect Mode Page
Tunnel – Disconnect Mode Page
Tunnel –
Description
Disconnect
Mode Page
Settings
Character
Stop
Modem
Control
Timeout Enter the idle time, in milliseconds, that must elapse for a connection
Flush Serial
Data
If enabled, an active connection is disconnected when the specified stop
character is read on the serial line.
If enabled, an active connection is disconnected when the Modem
Control pin (DSR) is de-asserted on the serial line.
before it is disconnected. Enter 0 (zero) to disable (default).
Select whether the serial line should be flushed when a connection is
disconnected. Choices are:
Enabled = flush the serial line when a connection is disconnected.
Disabled = do not flush the serial line. (default)
EDS Device Servers User Guide 67
7: Network, Line, Tunnel, and Terminal Settings
Tunnel – Packing Mode Page
When tunneling, data can be packed (queued) and sent in large chunks on the network
instead of being sent immediately after being read on the serial line. If you click Packing
Mode at the top of one of the Tunnel pages, the Tunnel – Packing Mode page displays.
Here you can select packing settings for the tunnel selected at the top of the page. For
more information about Packing mode, see Packing Mode on page 164.
Figure 7-11. Tunnel – Packing Mode Page
EDS Device Servers User Guide 68
7: Network, Line, Tunnel, and Terminal Settings
Tunnel – Packing Mode Page
Tunnel – Packing
Description
Mode Page
Settings
Mode Select the method used to pack data. Choices are:
Disabled = default packing algorithm. (default)
Timeout = data is sent after the timeout elapses.
Send Character = data is sent when the send character is read on
the serial line.
Timeout Enter the maximum number of milliseconds to wait before sending
queued data across the network. Default is 1000 milliseconds.
Threshold Enter the queued data limit that, when reached, immediately sends
queued data to the network. Default is 512 bytes.
Send Character Enter the send character. When this character is read on the serial
line, it forces the queued data to be sent immediately. Default is
<none>.
Trailing Character Enter the trailing character. This character is inserted into the
outgoing data stream immediately after the send character. Default is
<none>.
Tunnel – Modem Emulation Page
A tunnel in connect mode can be initiated using modem commands incoming from the
serial line. If you click Modem Emulation at the top of one of the Tunnel pages, the
Tunnel – Modem Emulation page displays. Here you can select modem emulation
settings for the tunnel selected at the top of the page. For more information about modem
emulation, see Modem Emulation on page 164.Tunnel – Modem Emulation Page
EDS Device Servers User Guide 69
7: Network, Line, Tunnel, and Terminal Settings
Tunnel – Modem Emulation Page
Tunnel – Modem
Description
Emulation Page
Settings
Echo Pluses Select whether the modem plus (+) command is echoed (sent).
Choices are:
On = modem pluses are echoed.
Off = modem pluses are not echoed. (default)
Echo Commands Select whether modem commands are echoed on the serial line.
Choices are:
On = modem commands are echoed. (default)
Off = modem commands are not echoed.
Verbose Response
Codes
Response Codes Select whether modem response (result) codes sent on the serial
Error Unknown
Commands
Connect String If required, enter a customized string that is sent along with the
Select whether modem response (result) codes are sent on the
serial line. Choices are:
On = modem responses are sent on the serial line. (default)
Off = modem responses are not sent.
line take the form of words or numbers. Choices are:
Text = modem responses are sent as words. (default)
Numeric = modem responses are sent as numbers.
Select whether an ERROR or OK response is sent in reply to
unrecognized AT commands. Choices are:
On = ERROR is returned for unrecognized AT commands.
Off = OK is returned for unrecognized AT commands. (default)
CONNECT response code. Default is <none>.
Tunnel – AES Keys Page
Four Advanced Encryption Standard (AES) Encryption Keys are used for tunneling.
Connect mode and Accept mode contain their own sets of keys. One key is used for
encrypting outgoing data and another key is used for decrypting incoming data. These
AES keys are fixed at 16 bytes. Any keys entered that are less than 16 bytes long are
padded with zeroes.
If you click AES Keys at the top of one of the Tunnel pages, the Tunnel – AES Keys
page displays. Here you can enter key data as text or binary values for the tunnel
selected at the top of the page. Binary values are a string of characters representing
hexadecimal or decimal values.
Notes:
Keys are shared secret keys that must be known by both sides of the connection
and kept secret.
Tunneling using AES encryption uses a non-standard protocol and shared keys,
making it not very secure. The EDS also supports SSH as an alternative method
of secure tunneling. SSH tunneling has the advantage of not using shared keys.
EDS Device Servers User Guide 70
7: Network, Line, Tunnel, and Terminal Settings
Figure 7-12. Tunnel – AES Keys Page
Tunnel – AES
Keys Page
Settings
Accept Mode AES
Keys: Encrypt Key
Accept Mode AES
Keys: Decrypt
Key
Connect Mode
AES Keys:
Encrypt Key
Connect Mode
AES Keys:
Decrypt Key
Tunnel – AES Keys Page
Description
Enter the AES encrypt key for Accept mode. After entering a value,
select an option to specify whether the value is text or binary.
Default is <none>.
Enter the AES decrypt key for Accept mode. After entering a value,
select an option to specify whether the value is text or binary.
Default is <none>.
Enter the AES encrypt key for Connect mode. After entering a
value, select an option to specify whether the value is text or binary.
Default is <none>.
Enter the AES decrypt key for Connect mode. After entering a
value, select an option to specify whether the value is text or binary.
Default is <none>.
EDS Device Servers User Guide 71
Terminal Page
Clicking the Terminal link in the menu bar displays the Terminal page. This page
displays configuration settings for the terminal on a serial line and lets you change them
as necessary.
To select a terminal:
From the drop-down list at the top of the page, select the line that is connected to the
terminal you want to configure.
7: Network, Line, Tunnel, and Terminal Settings
Figure 7-13. Terminal Page
Terminal Page
Terminal Page
Description
Settings
Terminal Type
Login Connect
Menu
Enter text to describe the type of terminal. The text will be sent to a
host via IAC.
Note: IAC means “interpret as command.” It is a way to send
commands over the network such as send break or start
echoing.
Select the interface to display when the user logs in. Choices are:
Enabled = displays the Login Connect Menu.
Disabled = displays the CLI
EDS Device Servers User Guide 72
7: Network, Line, Tunnel, and Terminal Settings
Terminal Page
Settings
Exit Connect
Menu
Send Break Enter a Send Break control character, e.g., <control> Y, or blank to
Break Duration Enter how long the break should last in milliseconds.
Host Page
Clicking the Host link in the menu bar displays the Host page. This page displays current
settings for a remote host and lets you change these settings.
To select a host:
EDS4100: Click Host 1, Host 2, Host 3, or Host 4 at the top of the page.
EDS8/16/32PR: Select the tunnel from the Select Host drop-down list at the top of the
page.
Description
Select whether to display a choice for the user to exit the Login
Connect Menu and reach the CLI. Choices are:
Enabled = a choice allows the user to exit to the CLI.
Disabled = there is no exit to the CLI.
disable.
When the Send Break control character is received from the
network on its way to the serial line, it is not sent to the line;
instead, the line output is forced to be inactive (the break condition).
EDS Device Servers User Guide 73
7: Network, Line, Tunnel, and Terminal Settings
Figure 7-14. Host Page
Host Page
Host Page
Description
Settings
Name Enter a name for the host. This is the name that displays on the
Login Connect Menu. To leave a host out of the menu, leave this
field blank.
Protocol Select the protocol to use to connect to the host. Choices are:
Telnet
SSH
Note: SSH keys must be loaded or created on the SSH page for
the SSH protocol to work.
SSH Username
Remote Address Enter an IP address for the host.
Remote Port Enter the port on the host to which the EDS will connect.
Displays if you selected SSH as the protocol. Enter a username to
select a pre-configured Username/Password/Key (configured on
the SSH: Client Users page), or leave it blank to be prompted for a
username and password at connect time.
EDS Device Servers User Guide 74
Login Connect Menu
An administrator can set up a menu on the EDS for terminal users.
For a terminal attached to serial Line N, set as follows:
Line[N] Protocol = None
Line[N] Command Mode = Always
Terminal[Line N] Login Connect Menu = Enabled.
For Telnet-attached terminals, set:
Terminal [Network] Login Connect Menu = Enabled.
The terminal user will see a menu roughly like this:
Password :
Connection menu: (select by number)
1) Alpha 2) Beta
7: Network, Line, Tunnel, and Terminal Settings
3) Exit to command line interface 4) Log out
Selection =
The administrator adds destination serial line M to the menu by filling in Line[M] Name.
For this purpose, set:
Line[M] Protocol = None
Line[M] Command Mode = Disabled.
The administrator adds a network destination to the menu by setting up a Host entry for
it. Each named Host entry will appear in the menu.
The administrator adds the Exit to command line interface choice to the menu by
setting:
Terminal[Line N] or Terminal[Network] Exit Connect Menu = Enabled.
The Log out choice is always present.
EDS Device Servers User Guide 75
6
8: Services Settings
DNS Page
Clicking the DNS link in the menu bar displays the DNS page. This page displays
configuration settings for the domain name system (DNS) and lets you change them as
necessary.
The DNS page also shows any contents in the DNS cache. When a DNS name is
resolved using a forward lookup, the results are stored in the DNS cache temporarily.
The EDS consults this cache when performing forward lookups. Each entry in the cache
is removed automatically after a certain period, or you can delete it manually.
Figure 8-1. DNS Page
Note: If the current configuration shows an address that comes from DHCP or
BOOTP, the new static address overrides it until you reboot the device.
EDS Device Servers User Guide 7
DNS Page
8: Services Settings
DNS Page
Settings
Primary Server Enter the DNS primary server that maintains the master zone
Secondary Server Enter the DNS secondary server that backs up the primary DNS
SNMP Page
Clicking the SNMP link in the menu bar displays the SNMP page. This page is used to
configure the Simple Network Management Protocol (SNMP) agent. Using this page, you
can configure the SNMP service to send a trap when it receives a request for information
that contains an incorrect community name and does not match an accepted system
name for the service.
Under Current Configuration, several settings have a Delete link that lets you delete
these settings. If you click these links, a message asks whether you are sure you want to
delete this information. Click OK to proceed or Cancel to cancel the operation.
Description
information/file for a domain. No server is configured with DNS. If the
EDS is set to DHCP, it will get the DNS server by means of DHCP.
server for a zone. Default is <none>.
Figure 8-2. SNMP Page
EDS Device Servers User Guide 77
8: Services Settings
SNMP Page
SNMP Page Settings Description
SNMP Agent Select whether SNMP is enabled. Choices are:
On = SNMP is enabled. (default)
Off = SNMP is disabled.
Read Community Enter the case-sensitive community name from which the
EDS will receive trap messages. Default is public. For
security, the read community name displays as <Configured>
to show that one is enabled.
Write Community Enter the case-sensitive community name to which the EDS
will send trap messages. Default is private. For security, the
write community name displays as <Configured> to show that
one is enabled.
System Contact Enter the name of the system contact. No contact is
configured by default.
System Name Enter the EDS’s name.
System Description Enter a system description for the EDS.
System Location Enter the geographic location of the EDS. No location is
configured by default.
Enable Traps Select whether SNMP cold start trap messages are enabled
at boot. Choices are:
On = SNMP cold start trap messages are enabled at boot
time. (default)
Off = SNMP traps are disabled.
Primary TrapDest IP Enter the primary SNMP trap host. None set by default.
Secondary TrapDest IP Enter the secondary SNMP trap host. None set by default.
EDS Device Servers User Guide 78
FTP Page
Clicking the FTP link in the menu bar displays the FTP page. This page displays the
current File Transfer Protocol (FTP) connection status and various statistics about the
FTP server.
Under Current FTP Configuration and Statistics, FTP Password has a Reset link that
lets you reset the FTP password. If you click this link, a message asks whether you are
sure you want to reset this information. Click OK to proceed or Cancel to cancel the
operation.
8: Services Settings
Figure 8-3. FTP Page
FTP Page
FTP Page
Description
Settings
FTP Server Select whether the FTP server is enabled. Choices are:
On = FTP server is enabled. (default)
Off = FTP server is disabled.
FTP Username
FTP Password Enter the password associated with the username. Default is
Enter the username required to gain FTP access. Default is admin.
PASS.
EDS Device Servers User Guide 79
TFTP Page
Clicking the TFTP link in the menu bar displays the TFTP page. This page displays the
status and various statistics about the Trivial File Transfer Protocol (TFTP) server.
8: Services Settings
Figure 8-4. TFTP Page
TFTP Page
TFTP Page Settings Description
TFTP Server Select whether the TFTP server is enabled. Choices are:
On = TFTP server is enabled. (default)
Off = TFTP server is disabled.
Allow TFTP File
Creation
Select whether the TFTP server can create a file if it does not
already exist. If you enable this feature, it exposes the EDS to
possible Denial-of-Service (DoS) attacks against the filesystem.
Choices are:
On = files can be created by the TFTP server.
Off = files cannot be created by the TFTP server. (default)
EDS Device Servers User Guide 80
Syslog Page
Clicking the Syslog link in the menu bar displays the Syslog page. This page shows the
current configuration, status, and statistics for the syslog. Here you can configure the
syslog destination and the severity of the events to log.
8: Services Settings
Figure 8-5. Syslog Page
Syslog Page
Syslog Page
Description
Settings
Host Enter the IP address of the remote server to which system logs
are sent for storage.
Local Port Enter the number of the local port on the EDS to which system
logs are sent.
The system log is always saved to local storage, but it is not
retained through reboots. Saving the system log to a server that
supports remote logging services (see RFC 3164) allows the
administrator to save the complete system log history. The
default is 514.
Remote Port
Severity to Log From the drop-down box, select the minimum level of system
Enter the number of the port on the remote server that supports
logging services. The default is 514.
message the EDS should log. This setting applies to all syslog
facilities. The drop-down list is in descending order of severity
(e.g., Emergency is more severe than Alert.)
EDS Device Servers User Guide 81
HTTP Pages
Clicking the HTTP link in the menu bar displays the HTTP Statistics page. This page has
four links at the top for viewing statistics and for viewing and changing configuration and
authentication settings.
HTTP Statistics Page
The HTTP Statistics page displays when you click HTTP in the menu bar. It also displays
when you click Statistics at the top of one of the other HTTP pages. This read-only page
shows various statistics about the Hyper Text Transfer Protocol (HTTP) server.
Note: The HTTP log is a scrolling log, with the last Max Log Entries lines
cached and viewable. To change the maximum number of entries that can be
viewed, go to the HTTP Configuration page (described on page 82).
8: Services Settings
Figure 8-6. HTTP Statistics Page
HTTP Configuration Page
If you click Configuration at the top of one of the HTTP pages, the HTTP Configuration
page displays. Here you can change HTTP configuration settings.
Under Current Configuration, Logs has View and Clear links that let you view or clear
the log. If you click View, the log displays. If you click Clear, a message asks whether
you are sure you want to delete this information. Click OK to proceed or Cancel to cancel
the operation.
Note: For help changing the format of the log, see Log Format Directives in the
information area or on page 85.
EDS Device Servers User Guide 82
Figure 8-7. HTTP Configuration Page
8: Services Settings
EDS Device Servers User Guide 83
HTTP Configuration Page
8: Services Settings
HTTP
Description
Configuration
Page Settings
HTTP Server Select whether the HTTP server is enabled. Choices are:
On = HTTP server is enabled. (default)
Off = HTTP server is disabled.
HTTP Port Enter the number of the port on which the EDS listens for incoming
HTTP connections from a Web browser. Default is 80.
HTTPS Port Enter the number of the port on which the EDS listens for incoming
HTTPS connections from a Web browser. Default is 443. The EDS
listens on the HTTPS port only when an SSL certificate has been
configured for the device (see SSL on page 101).
Max Timeout Enter the maximum number of seconds that the EDS waits for a
request from a client. This value helps prevent Denial of Service
(DoS) attacks against the HTTP Server. Default is 10 seconds.
Max Bytes Enter the maximum number of bytes allowed in a client request. This
value helps prevent Denial of Service (DoS) attacks against the
HTTP Server. Default is 40960 bytes.
Logging Select whether the HTTP log is enabled. Choices are:
On = HTTP log is enabled. (default)
Off = HTTP log is disabled.
Max Log Entries Enter the maximum number of entries that can be cached and
viewed in the HTTP log. The HTTP log is a scrolling log, with only
the last Max Log Entries lines cached and viewable. Default is 50.
Log Format Enter the format of the HTTP log. The log format directives are as
follows:
%a remote IP address (could be a proxy)
%b bytes sent excluding headers
%B bytes sent excluding headers (0 = '-')
%h remote host (same as '%a')
%{h}i header contents from request (h = header string)
%m request method
%p ephemeral local port value used for request
%q query string (prepend with '?' or empty '-')
%t timestamp HH:MM:SS (same as Apache '%(%H:%M:%S)t' or
'%(%T)t')
%u remote user (could be bogus for 401 status)
%U URL path info
%r first line of request (same as '%m %U%q <version>')
%s return status
The maximum length for each directive is 64 bytes. The exception is
'%r' where each element is limited to 64 bytes (i.e. method, URL
path info, and query string). The default log format string is: %h %t
"%r" %s %B "%{Referer}i" "%{User-Agent}i"
EDS Device Servers User Guide 84
8: Services Settings
HTTP Authentication Page
HTTP Authentication allows you to require usernames and passwords to access specific
web pages or directories on the EDS's built-in web server.
For example, to add web pages to the EDS to control or monitor of a device attached to a
port on the EDS, you can specify the user and password that can access that web page.
If you click Authentication at the top of one of the HTTP pages, the HTTP Authentication
page displays. Here you can change HTTP authentication settings.
Under Current Configuration, URI and Users have a Delete link. If you click Delete, a
message asks whether you are sure you want to delete this information. Click OK to
proceed or Cancel to cancel the operation.
Example:
The following example shows how to add authentication to user-loaded web pages in a
directory called port1control.
1. Create a directory called port1control in the EDS's files system and under the /http
directory (using an FTP client, Windows Explorer, or the EDS Web Manager).
2. Copy the custom web pages to this directory.
3. On the HTTP Authentication page of the EDS Web Manager, add:
A URI of port1control
A Realm of Monitor
An AuthType of Digest
A Username and Password
4. Click the Submit button. The EDS creates a username and password to allow the
user to access all web pages located in the directory port1control in the EDS file
system.
5. You can access the web pages by going to http://<your device>/port/control/ web
server>.
Note: The URI, realm, username, and password are user-specified, freeform
fields. The URI must match the directory created on the EDS file system. The
URI and realm used in the example above are only examples and would typically
be different as specified by the user.
EDS Device Servers User Guide 85
Figure 8-8. HTTP Authentication Page
8: Services Settings
EDS Device Servers User Guide 86
HTTP Authentication Page
8: Services Settings
HTTP
Description
Authentication
Page Settings
URI Enter the Uniform Resource Identifier (URI) of the resource that will
participate in the authentication process.
Note: To refer to a file resource, the URI must begin with /.
Realm Enter the domain, or realm, used for HTTP operations.
AuthType Select an authorization type. Different types of authorization offer
varying levels of security. Choices are (from least to most secure):
None = no authentication necessary.
Basic = encodes passwords using Base64.
Digest = encodes passwords using MD5. (Default)
SSL = page can only be accessed over SSL (no password).
SSL/Basic = page can only be accessed over SSL (encodes
passwords using Base64).
SSL/Digest = page can only be accessed over SSL (encodes
passwords using MD5).
SSL alone does not require a password, but all data transferred to and
from the HTTP Server is encrypted. There is no reason to create an
authentication directive using None, unless you want to override a
parent directive that uses some other AuthType. Multiple users can be
configured within a single authentication directive.
Username Enter the name of the user who will participate in the authentication.
Default is admin.
Password Enter the password that will be associated with the username. Default
is PASS.
EDS Device Servers User Guide 87
RSS Page
If you click RSS on the menu, the RSS page displays. Here you can specify Really
Simple Syndication (RSS) information. RSS is a way of feeding online content to web
users. Instead of actively searching for EDS configuration changes, RSS feeds allow
viewing of only relevant and new information regarding changes made to the EDS via an
RSS publisher.
Under Current Configuration, Data has View and Clear links. If you click View, the data
displays. If you click Clear, a message asks whether you are sure you want to delete this
information. Click OK to proceed or Cancel to cancel the operation.
8: Services Settings
Figure 8-9. RSS Page
EDS Device Servers User Guide 88
RSS Page
8: Services Settings
HTTP RSS Page
Settings
RSS Feed Select whether an RSS feed is enabled or disabled. An RSS
Persistent Select whether the RSS feed is persistent. Choices are:
Max Entries Enter the maximum number of log entries. The RSS feed is a
LPD Pages
Description
syndication feed is served by the HTTP server. This feed contains
up-to-date information about configuration changes that occur on
the EDS. Choices are:
On = RSS feed is enabled.
Off = RSS feed is disabled. (default)
On = data is stored on the filesystem, in the file “/cfg_log.txt.” This
allows feed data to be available across reboots or until the factory
defaults are set.
Off = data is not stored on the filesystem. (default)
scrolling feed, with only the last Max Entries entries cached and
viewable. To be notified automatically about any configuration
changes that occur, register the RSS feed within your favorite RSS
aggregator. Default is 100.
Each RSS feed entry is prefixed with a timestamp.
In addition to its other functions, the EDS acts as a print server if a printer is connected to
one of its serial ports.
Clicking the LPD (Line Printer Daemon) link in the menu bar displays the LPD Statistics
page. This page has three links at the top for viewing print queue statistics, changing
print queue configuration, and printing a test page.
To select a line printer:
EDS4100: Click LPD1, LPD2, LPD3, or LPD 4 at the top of the page.
EDS8/16/32PR: Select the LPD from the Select LPD Line drop-down list at the top of the
page.
After you select an LPD line, you can click Statistics, Configuration, or Print Test Page
to view or change the settings of the selected LPD. Because all LPD lines operate
independently, you can specify different configuration settings for each one.
EDS Device Servers User Guide 89
8: Services Settings
LPD Statistics Page
The LPD Statistics page displays when you click LPD in the menu bar. It also displays
when you click Statistics at the top of one of the other LPD pages. This read-only page
shows various statistics about the LPD server.
Figure 8-10. LPD Statistics Page
EDS Device Servers User Guide 90
8: Services Settings
LPD Configuration Page
If you click Configuration at the top of one of the LPD pages, the LPD Configuration
page displays. Here you can change LPD configuration settings.
Figure 8-11. LPD Configuration Page
EDS Device Servers User Guide 91
LPD Configuration Page
8: Services Settings
LPD
Description
Configuration
Page Settings
Banner
Binary
Start of Job
End of Job
Formfeed Select Enabled to force the printer to advance to the next page at
Convert
Newlines
SOJ String
EOJ String
Queue Name To change the name of the print queue, enter a new name. The
Select Enabled to print the banner even if the print job does not
specify to do so. Selected by default.
Select Enabled for the EDS is to pass the entire file to the printer
unchanged. Otherwise, the EDS passes only valid ascii and valid
control characters to the printer. Valid control characters include the
tab, linefeed, formfeed, backspace, and newline characters. All
others are stripped. Unselected by default.
Select Enabled to print a "start of job" string before sending the print
data.
Select Enabled to send an "end of job" string.
the end of each print job.
Select Enabled to convert single newlines and carriage returns to
DOS-style line endings.
If Start of Job (above) is enabled, enter the string to be sent to the
printer at the beginning of a print job. The limit is 100 characters.
Indicate whether the string is in text or binary format.
If End of Job (above) is enabled, enter the string to send at the end
of a print job. The limit is 100 characters. Indicate whether the string
is in text or binary format.
name cannot have white space in it and is limited to 31 characters.
EDS Device Servers User Guide 92
9: Security Settings
SSH Pages
Clicking the SSH link in the menu bar displays the SSH Server: Host Keys page. This
page has four links at the top for viewing and changing SSH server host keys, SSH
server authorized keys, SSH client known hosts, and SSH client users.
Note: For more information, see SSH on page 158.
SSH Server: Host Keys Page
The SSH Server: Host Keys page displays when you click SSH in the menu bar. It also
displays when you click SSH Server: Host Keys at the top of one of the other SSH
pages. Here you can generate new keys or upload files containing the keys.
SSH server private and public host keys are used by all applications that play the role of
an SSH server, specifically the CLI and Accept mode tunneling. These keys can be
created elsewhere and uploaded to the device, or generated on the device.
Under Current Configuration, Public RSA Key and Public DSA Key have View and
Delete links if these keys have been created. If you click View, the key displays. If you
click Delete, a message asks whether you are sure you want to delete this information.
Click OK to proceed or Cancel to cancel the operation. For security reasons, you cannot
view the private keys.
EDS Device Servers User Guide 93
Figure 9-1. SSH Server: Host Keys Page
9: Security Settings
EDS Device Servers User Guide 94
SSH Server: Host Keys Page
9: Security Settings
SSH Server: Host
Description
Keys Page Settings
Upload Keys
Private Key Enter the path and name of the existing private key you want to
Public Key Enter the path and name of the existing public key you want to
Key Type Select a key type to be used. Choices are:
Create New Keys
Key Type Select a key type to be used for the new key. Choices are:
Bit Size Select a bit length for the new key. Choices are:
upload or use the Browse button to select the key. Be sure the
private key will not be compromised in transit. This implies the
data is uploaded over some kind of secure private network or
an HTTPS connection.
Note: You can upload keys that have up to 2048-bit key length.
upload or use the Browse button to select the key.
RSA = use this key with SSH1 and SSH2 protocols.
DSA = use this key with the SSH2 protocol.
RSA = use this key with the SSH1 and SSH2 protocols.
DSA = use this key with the SSH2 protocol.
512
768
1024
Using a larger bit size takes more time to generate the key.
Approximate times are:
10 seconds for a 512-bit RSA key
1 minute for a 768-bit RSA key
2 minutes for a 1024-bit RSA key
2 minutes for a 512-bit DSA key
10 minutes for a 768-bit DSA key
15 minutes for a 1024-bit DSA key
Some SSH clients require RSA host keys to be at least 1024
bits long.
EDS Device Servers User Guide 95
9: Security Settings
SSH Server: Authorized Users Page
If you click SSH Server: Authorized Users at the top of one of the SSH pages, the SSH
Server: Authorized Users page displays. Here you can change SSH server settings for
authorized users.
SSH Server Authorized Users are accounts on the EDS that can be used to log into the
EDS via SSH. For instance, these accounts can be used to SSH into the CLI or open an
SSH connection to a device port. Every account must have a password.
The user's public keys are optional and only necessary if public key authentication is
wanted. Using public key authentication allows a connection to be made without the
password being asked.
Under Current Configuration, User has a Delete User link, and Public RSA Key and
Public DSA Key have View Key and Delete Key links. If you click a Delete link, a
message asks whether you are sure you want to delete this information. Click OK to
proceed or Cancel to cancel the operation.
Figure 9-2. SSH Server: Authorized Users Page
EDS Device Servers User Guide 96
SSH Server: Authorized Users Page
9: Security Settings
SSH Server:
Description
Authorized Users
Page Settings
Username Enter the name of the user authorized to access the SSH
server.
Password Enter the password associated with the username.
Public RSA Key Enter the path and name of the existing public RSA key you
want to use with this user or use the Browse button to select
the key. If authentication is successful with the key, no
password is required.
Public DSA Key Enter the path and name of the existing public DSA key you
want to use with this user or use the Browse button to select
the key. If authentication is successful with the key, no
password is required.
SSH Client: Known Hosts Page
If you click SSH Client: Known Hosts at the top of one of the SSH pages, the SSH
Client: Known Hosts page displays. Here you can change SSH client settings for known
hosts.
Note: You do not have to complete the fields on this page for communication to
occur. However, completing them adds another layer of security that protects
against Man-In-The-Middle (MITM) attacks.
Figure 9-3. SSH Client: Known Hosts Page
EDS Device Servers User Guide 97
SSH Client: Known Hosts Page
9: Security Settings
SSH Client:
Description
Known Hosts
Page Settings
Server Enter the name or IP address of a known host. If you entered a
server name, the name should match the name of the server used
as the Remote Address in Connect mode tunneling.
Public RSA Key Enter the path and name of the existing public RSA key you want
to configure for with this known host or use the Browse button to
select the key.
Public DSA Key Enter the path and name of the existing public DSA key you want
to configure for this known host or use the Browse button to
select the key.
SSH Client: Users Page
If you click SSH Client: Users at the top of one of the SSH pages, the SSH Client: Users
page displays. Here you can change SSH client settings for users.
SSH client hosts are used by all applications that play the role of an SSH client,
specifically tunneling in Connect mode. At the very least, a password or key pair must be
configured for a user. The keys for public key authentication can be created elsewhere
and uploaded to the device or automatically generated on the device. If uploading
existing keys, be sure the private key will not be compromised in transit. This implies the
data is uploaded over some kind of secure private network, or over an HTTPS
connection.
Note: If you are providing a key by uploading a file, make sure that the key is not
password protected.
EDS Device Servers User Guide 98
Figure 9-4. SSH Client: Users Page
9: Security Settings
EDS Device Servers User Guide 99
SSH Client: Users Page
9: Security Settings
SSH Client: Users
Description
Page Settings
Username Enter the name that the EDS uses to connect to the SSH
client user.
Password Enter the password associated with the username.
Remote Command Enter the command that can be executed remotely. Default
is <default login shell>, which tells the SSH server to
execute a remote shell upon connection. This command
can be changed to anything the remote host can perform.
Private Key Enter the name of the existing private key you want to use
with this SSH client user. You can either enter the path
and name of the key, or use the Browse button to select
the key.
Public Key Enter the path and name of the existing public key you
want to use with this SSH client user or use the Browse
button to select the key.
Key Type Select the key type to be used. Choices are:
RSA = use this key with the SSH1 and SSH2 protocols.
DSA = use this key with the SSH2 protocol.
Create New Keys
Username Enter the name of the user associated with the new key.
Key Type Select the key type to be used for the new key. Choices
Bit Size Select the bit length of the new key. Choices are:
(The user must already exist.)
are:
RSA = use this key with the SSH1 and SSH2 protocols.
DSA = use this key with the SSH2 protocol.
512
768
1024
Using a larger Bit Size takes more time to generate the
key. Approximate times are:
10 seconds for a 512-bit RSA key
1 minute for a 768-bit RSA key
2 minutes for a 1024-bit RSA key
2 minutes for a 512-bit DSA key
10 minutes for a 768-bit DSA key
15 minutes for a 1024-bit DSA key
Some SSH clients require RSA host keys to be at least
1024 bits long.
EDS Device Servers User Guide 100
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