Lantronix XPort AR User manual

Part Number 900-405
Revision F May 2010
XPort AR
User Guide

XPort AR User Guide 2
Copyright and Trademark
©2009, 2010 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.
Warranty
For details on the Lantronix warranty replacement policy, please go to our web site at
www.lantronix.com/support/warranty.
Contacts
Lantronix Corporate Headquarters
167 Technology Drive
Irvine, CA 92618, USA
Toll Free: 800-526-8766
Phone: [phone]
Fax: [phone]
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 and Revisions
The information in this guide may change without notice. The manufacturer assumes no
responsibility for any errors that may appear in this guide. For the latest revision of this product
document, please check our online documentation at www.lantronix.com/support/documentation.
Compliance
This product has been designed to comply with the limits for a Class B digital device pursuant to
Part 15 of FCC and EN55022:1998 Rules when properly enclosed and grounded. These limits are
designed to provide reasonable protection against radio interference in a residential installation.
This equipment generates, uses, and can radiate radio frequency energy, and if not installed and
used in accordance with this guide, may cause interference to radio communications. For more
information, see Compliance on page 137.

XPort AR User Guide 3
Revision History
Date Rev. Comments
June 2005 A Initial document.
November 2005 B Added V2.0 software information.
December 2006 C Added V3.0 information.
March 2007 D Corrected pin numbers.
June 2009 E Update to firmware v4.0.0.0R16.
May 2010 F Updated for firmware release 5.1.0.0R10.

XPort AR User Guide 4
Table of Contents
1: About This Guide 12
Chapter and Appendix Summaries ____________________________________________12
Conventions______________________________________________________________13
Additional Documentation ___________________________________________________13
2: Overview 15
Key Product Features ______________________________________________________15
Applications ______________________________________________________________15
Protocol Support __________________________________________________________16
Evolution OS™____________________________________________________________16
Software Features _________________________________________________________16
Modem Emulation ______________________________________________________16
Web-Based Configuration and Troubleshooting _______________________________16
Command-Line Interface (CLI) ____________________________________________17
SNMP Management ____________________________________________________17
XML-Based Architecture and Device Control _________________________________17
Really Simple Syndication (RSS) __________________________________________17
Enterprise-Grade Security________________________________________________17
Terminal Server/Device Management_______________________________________18
Troubleshooting Capabilities ______________________________________________18
Configuration Methods______________________________________________________18
Addresses and Port Numbers ________________________________________________19
Hardware Address______________________________________________________19
IP Address____________________________________________________________19
Port Numbers _________________________________________________________19
Product Information Label ___________________________________________________19
3: Using DeviceInstaller 21
Accessing XPort AR using DeviceInstaller_______________________________________21
Device Details Summary ____________________________________________________21
4: Configuration Using Web Manager 23
Accessing Web Manager____________________________________________________23
Web Manager_____________________________________________________________25
Navigating the Web Manager_________________________________________________26
5: Network Settings 28
Network 1 Interface Status___________________________________________________28
Network 1 Interface Configuration _____________________________________________29
Network 1 Ethernet Link_____________________________________________________30

XPort AR User Guide 5
Table of Contents
6: Line and Tunnel Settings 32
Line Settings _____________________________________________________________32
Line Statistics _________________________________________________________32
Line Configuration ______________________________________________________33
Line Command Mode ___________________________________________________35
Tunnel Settings ___________________________________________________________36
Tunnel Statistics _______________________________________________________37
Serial Settings _________________________________________________________38
Packing Mode _________________________________________________________40
Packing Mode using Timeout __________________________________________41
Packing Mode using Send Character ____________________________________42
Accept Mode __________________________________________________________43
Connect Mode_________________________________________________________45
Disconnect Mode_______________________________________________________50
Modem Emulation ______________________________________________________51
Command Mode ____________________________________________________51
7: Terminal and Host Settings 55
Terminal Settings__________________________________________________________55
Network Terminal Configuration ___________________________________________55
Line Terminal Configuration ______________________________________________56
Host Configuration _________________________________________________________58
8: Configurable Pins Manager 60
Overview ________________________________________________________________60
Default Groups ________________________________________________________60
Custom Groups ________________________________________________________60
Configurable Pins__________________________________________________________60
Change CPs __________________________________________________________61
CPM Groups _____________________________________________________________63
View CP Group Status___________________________________________________63
Add Custom CP Groups _________________________________________________63
Remove Custom CP Groups______________________________________________65
Remove CPs from CP Groups_____________________________________________65
9: Services Settings 66
DNS Status and Cache _____________________________________________________66
PPP Configuration _________________________________________________________67
SNMP Configuration _______________________________________________________69
FTP ____________________________________________________________________71
TFTP ___________________________________________________________________72
Syslog __________________________________________________________________73
HTTP ___________________________________________________________________75
HTTP Statistics ________________________________________________________75

XPort AR User Guide 6
Table of Contents
HTTP Configuration_____________________________________________________76
HTTP Authentication ____________________________________________________78
RSS ____________________________________________________________________79
10: Security Settings 81
SSH Server Host Keys______________________________________________________81
SSH Server Authorized Users ________________________________________________83
SSH Client Known Hosts ____________________________________________________85
SSH Client Users__________________________________________________________86
SSL Cipher Suites _________________________________________________________88
SSL Certificates ___________________________________________________________89
SSL RSA or DSA __________________________________________________________89
SSL Certificates and Private Keys_____________________________________________90
SSL Utilities ______________________________________________________________90
SSL Configuration _________________________________________________________91
11: Maintenance and Diagnostics Settings 94
Filesystem _______________________________________________________________94
Filesystem Statistics and Actions __________________________________________94
Filesystem Browser _____________________________________________________95
Protocol Stack ____________________________________________________________98
TCP _________________________________________________________________98
IP ___________________________________________________________________99
ICMP _______________________________________________________________100
ARP ________________________________________________________________101
IP Address Filter__________________________________________________________102
Query Port ______________________________________________________________103
Diagnostics______________________________________________________________104
Hardware____________________________________________________________104
MIB-II_______________________________________________________________105
IP Sockets ___________________________________________________________107
Ping ________________________________________________________________107
Traceroute___________________________________________________________109
DNS Lookup _________________________________________________________110
Memory _____________________________________________________________111
Buffer Pools__________________________________________________________112
Processes ___________________________________________________________112
System_________________________________________________________________114
12: Advanced Settings 116
Email Statistics___________________________________________________________116
Email Configuration _______________________________________________________117

XPort AR User Guide 7
Table of Contents
Command Line Interface ___________________________________________________118
CLI Statistics _________________________________________________________119
CLI Configuration______________________________________________________119
XML Configuration ________________________________________________________121
XML Export Configuration _______________________________________________121
XML Export Status_____________________________________________________123
XML Import Configuration _______________________________________________125
Import Configuration from External File _________________________________125
Import Configuration from Filesystem___________________________________126
Import Line(s) from Single Line Settings on the Filesystem __________________128
13: Branding the XPort AR 131
Web Manager Customization________________________________________________131
Short and Long Name Customization _________________________________________131
14: Updating Firmware 133
A: Technical Support 134
B: Binary to Hexadecimal Conversions 135
Converting Binary to Hexadecimal____________________________________________135
Conversion Table _____________________________________________________135
Scientific Calculator____________________________________________________136
C: Compliance 137
Declaration of Conformity___________________________________________________137
RoHS Notice ____________________________________________________________138
Index 140

XPort AR User Guide 8
List of Figures
Figure 2-1 XPort AR Product Information Label _________________________________________20
Figure 4-1 XPort AR Web Manager Home Page ________________________________________24
Figure 4-2 Components of a Typical Web Manager Page _________________________________25
Figure 5-1 Network 1 (eth0) Interface Status Web Page __________________________________28
Figure 5-2 Network 1 (eth0) Interface Configuration Web Page_____________________________29
Figure 5-3 Network 1 (eth0) Ethernet Link Web Page ____________________________________31
Figure 6-1 Line 1 Statistics Web Page ________________________________________________33
Figure 6-2 Line 1 Configuration Web Page_____________________________________________34
Figure 6-3 Line 1 Command Mode Web Page __________________________________________35
Figure 6-4 Tunnel 1 Statistics Web Page ______________________________________________38
Figure 6-5 Tunnel 1 Serial Settings Web Page__________________________________________39
Figure 6-6 Tunnel 1 Packing Mode Web Page__________________________________________40
Figure 6-7 Tunnel 1 Packing Mode (Timeout)___________________________________________41
Figure 6-8 Tunnel 1 Packing Mode (Send Character) ____________________________________42
Figure 6-9 Tunnel 1 Accept Mode Web Page___________________________________________44
Figure 6-10 Tunnel 1 Connect Mode Page_____________________________________________47
Figure 6-11 Tunnel 1 Disconnect Mode Web Page ______________________________________50
Figure 6-12 Tunnel 1 Modem Emulation Web Page______________________________________53
Figure 7-1 Terminal on Network Configuration Web Page _________________________________55
Figure 7-2 Terminal on Line 1 Configuration Web Page___________________________________57
Figure 7-3 Host Configuration Web Page______________________________________________58
Figure 8-1 CPM CPs Page _________________________________________________________61
Figure 8-2 CPM Groups Page_______________________________________________________64
Figure 9-1 DNS Status and Cache Web Page __________________________________________67
Figure 9-2 PPP Configuration Web Page ______________________________________________68
Figure 9-3 SNMP Web Page________________________________________________________70
Figure 9-4 FTP Web Page _________________________________________________________71
Figure 9-5 TFTP Server Web Page __________________________________________________72
Figure 9-6 Syslog Web Page _______________________________________________________74
Figure 9-7 HTTP Statistics Web Page ________________________________________________75
Figure 9-8 HTTP Configuration Web Page_____________________________________________76
Figure 9-9 HTTP Authentication Web Page ____________________________________________78
Figure 9-10 RSS Web Page ________________________________________________________80
Figure 10-1 SSH Server Host Keys Web Page__________________________________________82
Figure 10-2 SSH Server Authorized Users Web Page____________________________________84
Figure 10-3 SSH Client Known Hosts Web Page________________________________________85
Figure 10-4 SSH Client Users Web Page______________________________________________87
Figure 10-5 SSL Web Page ________________________________________________________91
Figure 11-1 Filesystem Statistics Web Page ___________________________________________95
Figure 11-2 Filesystem Browser Web Page ____________________________________________96
Figure 11-3 TCP Web Page________________________________________________________98

XPort AR User Guide 9
List of Figures
Figure 11-4 IP Web Page __________________________________________________________99
Figure 11-5 ICMP Web Page ______________________________________________________100
Figure 11-6 ARP Web Page _______________________________________________________101
Figure 11-7 IP Address Filter Web Page _____________________________________________102
Figure 11-8 Query Port Web Page __________________________________________________103
Figure 11-9 Diagnostics Hardware Web Page _________________________________________105
Figure 11-10 MIB-II Network Statistics Web Page ______________________________________106
Figure 11-11 IP Sockets Web Page _________________________________________________107
Figure 11-12 Ping Web Page ______________________________________________________108
Figure 11-13 Traceroute Web Page _________________________________________________109
Figure 11-14 DNS Lookup Web Page________________________________________________110
Figure 11-15 Memory Web Page ___________________________________________________111
Figure 11-16 Buffer Pools Web Page ________________________________________________112
Figure 11-17 Processes Web Page _________________________________________________113
Figure 11-18 System Web Page____________________________________________________114
Figure 12-1 Email Statistics Web Page_______________________________________________116
Figure 12-2 Email 1 Configuration Web Page__________________________________________117
Figure 12-3 CLI Statistics Web Page ________________________________________________119
Figure 12-4 CLI Configuration Web Page_____________________________________________120
Figure 12-5 XML Export Configuration Web Page ______________________________________122
Figure 12-6 XML Export Status Web Page____________________________________________124
Figure 12-7 Import Configuration Web Page __________________________________________125
Figure 12-8 Import Configuration from External File Web Page____________________________126
Figure 12-9 Import Configuration from Filesystem Web Page _____________________________127
Figure 12-10 Import Lines from Single Line Settings on the Filesystem Web Page_____________129
Figure 13-1 System Branding Web Page _____________________________________________132
Figure 14-1 System Web Page_____________________________________________________133
Figure B-1 Scientific Calculator_____________________________________________________136
Figure B-2 Hex Display___________________________________________________________136

XPort AR User Guide 10
List of Tables
Table 1-1 Chapter/Appendix and Summary ____________________________________________12
Table 1-2 Conventions Used in This Book _____________________________________________13
Table 3-1 Current Settings and Description ____________________________________________21
Table 4-1 Summary of Web Manager Pages ___________________________________________26
Table 5-1 Network 1 Interface Configuration Fields ______________________________________29
Table 5-2 Network 1 (eth0) Ethernet Link Fields_________________________________________31
Table 6-1 Line 1 Configuration Fields_________________________________________________34
Table 6-2 Line 1 Command Mode Fields ______________________________________________36
Table 6-3 Tunnel 1 Serial Settings Fields______________________________________________39
Table 6-4 Tunnel Packing Mode (Timeout) Fields _______________________________________41
Table 6-5 Tunnel Packing Mode (Send Character) Fields _________________________________42
Table 6-6 Tunnel Accept Mode Fields ________________________________________________44
Table 6-7 Tunnel 1 Connect Mode Fields______________________________________________47
Table 6-8 Tunnel Disconnect Mode Fields _____________________________________________51
Table 6-9 Modem Emulation Commands and Descriptions ________________________________51
Table 6-10 Tunnel Modem Emulation Fields ___________________________________________53
Table 7-1 Terminal on Network Configuration Fields _____________________________________56
Table 7-2 Terminal on Line 1 Configuration Fields_______________________________________57
Table 7-3 Host Configuration Fields __________________________________________________59
Table 8-1 CPM CPs Current Configuration Fields and Descriptions _________________________61
Table 8-2 CPM CPs Status Fields and Descriptions______________________________________62
Table 8-3 CPM Group Status Fields and Descriptions ____________________________________63
Table 8-4 CPM Groups Current Configuration Fields and Descriptions _______________________64
Table 9-1 PPP Configuration Fields __________________________________________________69
Table 9-2 SNMP Fields____________________________________________________________70
Table 9-3 FTP Fields______________________________________________________________72
Table 9-4 TFTP Server Fields_______________________________________________________73
Table 9-5 Syslog Fields____________________________________________________________74
Table 9-6 HTTP Configuration Fields _________________________________________________77
Table 9-7 HTTP Authentication Fields ________________________________________________78
Table 9-8 RSS Fields _____________________________________________________________80
Table 10-1 SSH Server Host Keys Fields______________________________________________82
Table 10-2 SSH Server Authorized Users Fields ________________________________________84
Table 10-3 SSH Client Known Hosts Fields ____________________________________________85
Table 10-4 SSH Client Users Fields__________________________________________________87
Table 10-5 Supported Cipher Suites__________________________________________________88
Table 10-6 SSL Fields_____________________________________________________________92
Table 11-1 Filesystem Browser Fields ________________________________________________97
Table 11-2 TCP Fields ____________________________________________________________98
Table 11-3 ARP Web Page Fields __________________________________________________101
Table 11-4 IP Address Filter Fields__________________________________________________103

XPort AR User Guide 11
List of Tables
Table 11-5 Ping Fields ___________________________________________________________108
Table 11-6 Traceroute Fields ______________________________________________________109
Table 11-7 DNS Lookup Fields_____________________________________________________111
Table 11-8 System Fields _________________________________________________________115
Table 12-1 Email 1 Configuration Fields______________________________________________118
Table 12-2 CLI Configuration Fields _________________________________________________120
Table 12-3 XML Export Configuration Fields __________________________________________122
Table 12-4 XML Export Status Fields ________________________________________________124
Table 12-5 Import Configuration from Filesystem Fields _________________________________128
Table 12-6 Import Lines from Single Line Settings Fields_________________________________129
Table B-1 Conversion Values ______________________________________________________135

XPort AR User Guide 12
1: About This Guide
This guide describes how to configure, use, and update the XPort AR. It is for software developers
and original equipment manufacturers who are embedding the XPort AR in their designs. This
chapter contains the following sections:
Chapter and Appendix Summaries
Conventions
Additional Documentation
Chapter and Appendix Summaries
Table 1-1 lists and summarizes each chapter and appendix.
Table 1-1 Chapter/Appendix and Summary
Chapter/Appendix Summary
2: Overview Main features of the product and the protocols it
supports. Includes technical specifications.
3: Using DeviceInstaller Instructions for viewing the current configuration using
DeviceInstaller.
4: Configuration Using Web Manager Instructions for accessing Web Manager and using it to
configure settings for the XPort AR.
5: Network Settings Instructions for using the web interface to configure
Ethernet settings.
6: Line and Tunnel Settings Instructions for using the web interface to configure
lines and tunnels.
7: Terminal and Host Settings Instructions for using the web interface to configure
terminals and host settings.
8: Configurable Pins Manager Instructions for using the Configurable Pins Manager
(CPM) to set up the configurable pins to work with a
device.
9: Services Settings Instructions for using the web interface to configure
settings for DNS, SNMP, FTP, and other services.
10: Security Settings Description and configuration of SSH and SSL security
settings and instructions for using the web interface to
configure SSH and SSL security settings.
11: Maintenance and Diagnostics Settings Instructions for using the web interface to maintain the
XPort AR, view statistics, files, and logs, and diagnose
problems.
12: Advanced Settings Instructions for using the web interface to configure
email, CLI, and XML settings.
13: Branding the XPort AR Description of PPP on the XPort AR.
14: Updating Firmware Instructions for obtaining the latest firmware and
updating the XPort AR.

1: About This Guide
XPort AR User Guide 13
Conventions
Table 1-2 lists and describes the conventions used in this book.
Additional Documentation
Visit the Lantronix web site at www.lantronix.com/support/documentation for the latest
documentation and the following additional documentation.
XPort AR Integration Guide—Information about the XPort AR hardware, the XPort AR
evaluation board, and integrating the XPort AR into your product.
XPort AR Command Reference—Instructions for accessing Command Mode (the command
line interface) using a Telnet connection or through the serial port. Detailed information about
the commands. Also provides details for XML configuration and status.
XPort AR Getting Started Guide—Instructions for getting the XPort AR on the evaluation
board up and running.
DeviceInstaller Online Help—Instructions for using the Lantronix Windows-based utility to
locate the XPort AR and to view its current settings.
A: Technical Support Instructions for contacting Lantronix Technical Support.
B: Binary to Hexadecimal Conversions Instructions for converting binary values to
hexadecimals.
C: Compliance Lantronix compliance information.
Table 1-2 Conventions Used in This Book
Convention Description
Bold text Default parameters.
Brackets [ ] Optional parameters.
Angle Brackets < > Possible values for parameters.
Pipe | Choice of parameters.
Warning Warning: Means that you are in a situation that could
cause equipment damage or bodily injury. Before you work
on any equipment, you must be aware of the hazards
involved with electrical circuitry and familiar with standard
practices for preventing accidents.
Note Note: Means take notice. Notes contain helpful suggestions,
information, or references to material not covered in the publication.
Caution Caution: Means you might do something that could result in faulty
equipment operation, or loss of data.
Screen Font
(Courier New) CLI terminal sessions and examples of CLI input.
Table 1-1 Chapter/Appendix and Summary (continued)
Chapter/Appendix Summary

1: About This Guide
XPort AR User Guide 14
Com Port Redirector Quick Start and Online Help—Instructions for using the Lantronix
Windows-based utility to create virtual com ports.
Secure Com Port Redirector User Guide—Instructions for using the Lantronix Windows-
based utility to create secure virtual com ports.

XPort AR User Guide 15
2: Overview
The XPort AR embedded Ethernet Device Server is a complete network–enabling solution on a
1.75” x 1.75” PCB. This miniature device server empowers original equipment manufacturers
(OEMs) to go to market quickly and easily with Ethernet networking and web page serving
capabilities built into their products.
This chapter contains the following sections:
Key Product Features
Applications
Protocol Support
Evolution OS™
Software Features
Configuration Methods
Addresses and Port Numbers
Product Information Label
Key Product Features
The XPort AR is designed with additional features above and beyond the original XPort, including:
The Evolution OS operating system.
Two full serial ports with all hardware handshaking signals or three serial ports without
handshaking signals.
Eleven configurable pins .
Fully compliant PoE designs by using PoE compliant magnetics and passing through both the
used and unused pairs.
Increased memory: 4MB Flash and 1.25MB RAM.
Applications
The XPort AR device server connects serial devices, such as those listed below to Ethernet
networks using the IP protocol family:
CNC controllers
Data collection devices
Universal Power Supply (UPS) management unit
Telecommunications equipment
Handheld instruments
Security, alarm, and access control devices
Patient monitoring equipment
Medical instrumentation
Industrial Manufacturing/Automation systems

2: Overview
XPort AR User Guide 16
Building Automation equipment
Point of Sale Systems
ATM machines
Data display devices
Modems
Time/attendance clocks and terminals
Protocol Support
The XPort AR device server supports the following TCP/IP protocols:
ARP, IP, UDP, TCP, ICMP, BOOTP, DHCP, Auto IP, Telnet, DNS, FTP, TFTP, HTTP/HTTPS,
SSH, SSL/TLS, SNMP, SMTP, RSS, PPP and Syslog for network communications and
management.
TCP, UDP, TCP/AES, UDP/AES, Telnet, SSH and SSL/TLS for tunneling to the serial port.
TFTP, FTP, and HTTP for firmware upgrades and uploading files.
Evolution OS™
The XPort AR features the Lantronix 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
Comprehensive troubleshooting tools
Software Features
Modem Emulation
In modem emulation mode, the XPort AR can replace dial-up modems. The unit accepts modem
AT commands on the serial port, and then establishes a network connection to the end device,
leveraging network connections and bandwidth to eliminate dedicated modems and phone lines.
Web-Based Configuration and Troubleshooting
Built upon Internet-based standards, the XPort AR enables configuration, management, and
troubleshooting by using a browser-based interface accessible anytime from anywhere. All
configuration and troubleshooting options are available via the web interface. You can access all
functions via a Web browser, for remote access. As a result, you decrease downtime (using the
troubleshooting tools) and implement configuration changes (using the configuration tools).

2: Overview
XPort AR User Guide 17
Command-Line Interface (CLI)
Making the edge-to-enterprise vision a reality, the XPort AR with Evolution OS™ uses industry-
standard tools for configuration, communication, and control. For example, the Evolution OS™
uses a Command Line Interface (CLI) whose syntax is very similar to that used by data center
equipment such as routers and hubs.
SNMP Management
The XPort AR 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 XPort AR.
XML-Based Architecture and Device Control
XML is a fundamental building block for the future growth of M2M networks. The XPort AR
supports XML-based configuration setup records that make device configuration transparent to
users and administrators. The XML is easily editable with a standard text or XML editor.
Really Simple Syndication (RSS)
The XPort AR supports Really Simple Syndication (RSS) for streaming and managing on-line
content. RSS feeds all the configuration changes that occur on the device. An RSS aggregator can
be used to monitor many RSS feeds at one time. 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
Evolution OS™ provides the XPort AR the highest level of networking 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.
By protecting the privacy of serial data transmitted across public networks, users can maintain
their existing 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 or SSL connection.
In addition to keeping data safe and accessible, the XPort AR has robust defenses to hostile
Internet attacks such as denial of service (DoS), which can be used to take down the network.
Moreover, the XPort AR cannot be used to bring down other devices on the network.

2: Overview
XPort AR User Guide 18
You can use the XPort AR with the Lantronix 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.
Terminal Server/Device Management
Remote offices can have routers, PBXs, servers and other networking equipment that require
remote management from the corporate facility. The XPort AR 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 Login Connect Menu feature on the XPort AR, connections to the console ports of the
attached devices as well as Ethernet hosts, such as Unix servers or another XPort AR, can easily
be picked from a user-defined menu. This allows console ports across multiple devices to be
accessed from one XPort AR.
Troubleshooting Capabilities
The XPort AR 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 XPort AR, including CPU utilization and total stack
space available.
Configuration Methods
After installation, the XPort AR requires configuration. For the unit to operate correctly on a
network, it must have a unique IP address on the network. There are four basic methods for
logging into the XPort AR and assigning IP addresses and other configurable settings:
DeviceInstaller—Configure the IP address and related settings and view current settings on
the XPort AR using a PC GUI attached to a network. See Using DeviceInstaller on page 21.
Web Manager—Use a web browser to configure the XPort AR settings using the Lantronix
Web Manager. See Configuration Using Web Manager on page 23.
Command Line Interface (CLI)—There are two methods for accessing CLI: making a Telnet
connection or connecting a terminal (or a PC running a terminal emulation program) to the
serial port. Refer to the XPort AR Command Reference for instructions and available
commands.
XML—The XPort AR supports XML-based configuration and setup records that make device
configuration transparent to users and administrators. XML is easily editable with a standard
text or XML editor. Refer to the XPort AR Command Reference for instructions and available
commands.

2: Overview
XPort AR User Guide 19
Addresses and Port Numbers
Hardware Address
The hardware address is also referred to as the Ethernet address or MAC address. The first three
bytes of the Ethernet address are fixed and read 00-20-4A, identifying the unit as a Lantronix
product. The fourth, fifth, and sixth bytes are unique numbers assigned to each unit. The following
sample shows a hardware address:
00-20-4A-14-01-18
or
00:20:4A:14:01:18
IP Address
Every device connected to an IP network must have a unique IP address. This address references
the specific unit.
Port Numbers
Every TCP connection and every UDP datagram is defined by a destination and source IP
address, and a destination and source port number. For example, a Telnet server commonly uses
port number 23.
The following is a list of the default server port numbers running on the XPort AR:
TCP Port 22—SSH Server (Command Mode configuration)
TCP Port 23—Telnet Server (Command Mode configuration)
TCP Port 80—HTTP (Web Manager configuration)
TCP Port 443—HTTPS (Web Manager configuration)
UDP Port 161—SNMP
TCP Port 21—FTP
UDP Port 69—TFTP
UDP Port 30718—LDP (Lantronix Discovery Protocol) port
TCP/UDP Port 10001—Tunnel 1
TCP/UDP Port 10002—Tunnel 2
Product Information Label
Figure 2-1 shows the bottom of each unit which has a product information label. The label
contains the following information:
Product ID (name)
Product description

2: Overview
XPort AR User Guide 20
Bar code
Part number
Serial number (which is the hardware address, also referred to as Ethernet or MAC address)
Figure 2-1 XPort AR Product Information Label