Integrated Remote Console
User Guide
Second Edition (December 1998)
Part Number 281862-002
Compaq Computer Corporation
Notice
The information in this publication is subject to change without notice.
COMPAQ COMPUTER CORPORATION SHALL NOT BE LIABLE FOR TECHNICAL OR
EDITORIAL ERRORS OR OMISSIONS CONTAINED HEREIN, NOR FOR INCIDENTAL OR
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This publication contains information protected by copyright. No part of this publication may be
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 1998 Compaq Computer Corporation.
All rights reserved. Printed in the U.S.A.
The software described in this guide is furnished under a license agreement or nondisclosure agreement.
The software may be used or copied only in accordance with the terms of the agreement.
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Other product names mentioned herein may be trademarks and/or registered trademarks of their
respective companies.
Compaq Integrated Remote Console User Guide
Second Edition (December 1998)
Part Number 281862-002
iii
Contents
About This Guide
Text Conventions.......................................................................................................................vii
Symbols in Text....................................................................................................................... viii
Getting Help ............................................................................................................................ viii
Compaq Website .............................................................................................................. viii
Telephone Numbers ............................................................................................................ix
Chapter 1
Introduction
Integrated Remote Console Capabilities ................................................................................. 1-1
Benefits of Using Integrated Remote Console ........................................................................ 1-2
Requirements........................................................................................................................... 1-2
Installation Sequence Outline .................................................................................................. 1-3
Terminology ............................................................................................................................ 1-4
Accessing Integrated Remote Console .................................................................................... 1-5
Expected Audience .................................................................................................................. 1-5
Chapter 2
Setup and Configuration
Installing the Modem............................................................................................................... 2-1
Configuring the Modem .......................................................................................................... 2-2
Configuring a non “plug-n-play” ISA Modem................................................................. 2-2
Configuring an external modem or direct connection ...................................................... 2-4
Configuring Integrated Remote Console ................................................................................. 2-6
Modem Strings ................................................................................................................. 2-9
Assigning Authorized Users ...................................................................................................2-10
User Configuration ..........................................................................................................2-11
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Chapter 3
Establishing a Connection
Establishing a Connection Using Compaq Insight Manager ................................................... 3-1
Configuring Insight Manager for Out-of-Band Remote Console Access......................... 3-2
Establishing an Out-of-Band Remote Console Connection ............................................. 3-4
Invoke Integrated Remote Console Login........................................................................ 3-5
Benefits of Using Insight Manager to Establish the Connection...................................... 3-5
Verifying Modem Settings ............................................................................................... 3-6
Establishing a Connection Using Windows HyperTerminal ................................................... 3-8
Setting up a Connection ..................................................................................................3-10
Invoke Integrated Remote Console Login.......................................................................3-14
Saving a Connection........................................................................................................3-14
Establishing a Connection Using an ANSI Compatible Terminal Emulator..........................3-15
Configuration Guidelines ................................................................................................3-15
Limitations ......................................................................................................................3-16
Establishing a Connection ...............................................................................................3-17
Invoke IRC Login............................................................................................................3-17
Login ......................................................................................................................................3-18
Chapter 4
Using Integrated Remote Console
Main Menu Options................................................................................................................. 4-3
Remote Console Menu Option ................................................................................................ 4-4
Beginning a Remote Console Session .............................................................................. 4-5
Changing the Default Attention Key ................................................................................ 4-9
Changing the Terminal Screen Size ................................................................................4-10
Return to Main Menu ......................................................................................................4-11
Reboot Server Menu Option...................................................................................................4-12
View Reboot Sequence...........................................................................................................4-17
View Event Log......................................................................................................................4-19
Change Password....................................................................................................................4-20
Manage Login Information.....................................................................................................4-21
Modify User Information ................................................................................................4-22
Manage Configuration............................................................................................................4-23
Communications Setup....................................................................................................4-24
Disconnecting .........................................................................................................................4-26
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Chapter 5
Using Attention Key Sequences
Attention Key Command Sequences ....................................................................................... 5-2
Example: Returning to IRC Main Menu .......................................................................... 5-2
Attention Key Support Sequences ........................................................................................... 5-3
Example: Pressing F10 Key ............................................................................................. 5-4
Attention Key Compose Sequences......................................................................................... 5-5
Example: Entering Alt + P ............................................................................................... 5-6
Example: Entering Ctrl + Alt + Del ................................................................................. 5-7
More Attention Key Examples ................................................................................................ 5-8
Attention Key Template .......................................................................................................... 5-9
Changing the Attention Key .................................................................................................... 5-9
Chapter 6
Additional Modem Information
Modem Types .......................................................................................................................... 6-1
External Serial Modems ................................................................................................... 6-2
Internal ISA Plug-n-Play Modems ................................................................................... 6-3
“Windows” Modems ........................................................................................................ 6-3
PCI-based Modems .......................................................................................................... 6-4
Modem Configuration Strings ................................................................................................. 6-5
Computer to Modem Serial Port Speed............................................................................ 6-6
Data Carrier Detect (DCD) Operation.............................................................................. 6-6
Data Terminal Ready (DTR) Interpretation ..................................................................... 6-7
Flow Control .................................................................................................................... 6-7
Error Correction ............................................................................................................... 6-7
Data Compression ............................................................................................................ 6-8
Response Codes................................................................................................................ 6-8
Chapter 7
Direct Connections
Connecting Using a Terminal or Terminal Emulator .............................................................. 7-1
Cable Requirement ........................................................................................................... 7-2
Communication Requirements ......................................................................................... 7-2
Connecting Using a Terminal Server or Concentrator ............................................................ 7-4
Obtaining the Appropriate Cable...................................................................................... 7-5
Configuring Integrated Remote Console .......................................................................... 7-8
Configuring the Terminal Server...................................................................................... 7-9
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Chapter 8
Modem Sharing
Asynchronous Management .................................................................................................... 8-2
Graphical Remote Control....................................................................................................... 8-4
Additional Information ............................................................................................................ 8-6
Determining Proper Initialization Strings in a Windows NT 4.0 RAS Environment....... 8-6
Appendix A
Suggested Modem Settings
Suggested Settings When Modem is Dedicated or Shared in non-Windows NT
Environments...........................................................................................................................A-1
Suggested Settings When Modem is Shared in Windows NT 4.0...........................................A-3
Appendix B
Null-Modem Cable Description
Appendix C
Troubleshooting
POST Errors ............................................................................................................................C-2
Server displays “172-2 IRC Configuration Invalid” message during POST ....................C-2
Connection Problems...............................................................................................................C-3
Connection problems using a modem in dedicated mode ................................................C-3
Connection problems using a modem in shared mode .....................................................C-6
Connection problems using a direct-connection.............................................................C-10
Problems while using IRC.....................................................................................................C-11
Screen temporarily pauses during menus or remote console text...................................C-11
Terminal doesn’t scroll correctly in Remote Console Mode..........................................C-11
Terminal loses characters or doesn’t paint correctly in Remote Console Mode ............C-12
“View Reboot Sequence” is grayed out .........................................................................C-13
Index
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vii
About This Guide
This guide is designed to be used as step-by-step instructions for installation,
and as a reference for operation, troubleshooting, and future upgrades.
Text Conventions
This document uses the following conventions to distinguish elements of text:
Keys
Keys appear in boldface. A plus sign (+) between two
keys indicates that they should be pressed
simultaneously.
USER INPUT
User input appears in a different typeface and in
uppercase.
FILENAMES
File names appear in uppercase italics.
Menu Options
These appear in italic initial capital letters
Command Names,
Dialog Box Names
These appear in initial capital letters.
COMMANDS,
DIRECTORY
NAMES, and DRIVE
NAMES
These always appear in uppercase.
Type
When you are instructed to type information, type the
information without pressing the Enter key.
Enter
When you are instructed to enter information, type the
information and then press the Enter key.
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viii About This Guide
Symbols in Text
These symbols may be found in the text of this guide. They have the following
meanings.
WARNING: Indicates that failure to follow directions in the
warning could result in bodily harm or loss of life.
CAUTION: Indicates that failure to follow directions could result
in damage to equipment or loss of information.
IMPORTANT:
NOTE:
Presents clarifying information or specific instructions.
Presents commentary, sidelights, or interesting points of information.
Getting Help
If you have a problem and have exhausted the information in this guide, you
can get further information and other help in the following locations.
Compaq Website
The Compaq website has information on this product as well as the latest
drivers and Flash ROM images. You can access the Compaq website by
logging on to the Internet at http://www.compaq.com.
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Telephone Numbers
For the name of your nearest Compaq Authorized Reseller:
In the United States, call 1-800-345-1518
In Canada, call 1-800-263-5868
For Compaq technical support:
In the United States and Canada, call 1-800-OK COMPAQ (For continuous
quality improvement, calls may be monitored or recorded.)
For Compaq technical support phone numbers outside the United States and
Canada, visit the Compaq website at:
http://www.compaq.com.
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1-1
Chapter 1
Introduction
Compaq Integrated Remote Console (IRC) is an integrated hardware function
that provides remote access and remote control to diagnose server failures
interactively. IRC gives authorized users direct access to the managed server,
independent of the operating system or other software, from locations a few
feet away or from another continent.
Ability to control the server is not dependent upon any special software running
on the server, nor is it restricted to when the managed server is in a particular
state (like running BIOS). An administrator now has the ability to access the
server, perform diagnostics, reset the system, watch the reset process remotely,
and view Automatic Server Recovery sequences, regardless of whether the
server operating system is online or offline.
IRC capability is built into your server. No add-on system management board is
required.
Integrated Remote Console
Capabilities
The primary capabilities of IRC let you:
■
Access the server via modem from a distant location
■
Access the server via direct-line connection to a terminal or terminal
server
■
Remotely control the managed server with complete remote console
access, regardless of the state of the server operating system
■
Perform a controlled reset of the server, regardless of the state of the
server operating system
■
Cycle the power, unconditionally resetting all features and internal
peripherals, followed by automatic reconnection to Integrated Remote
Console
■
View a complete boot sequence including all ROM POST messages and
operating system load information following an Automatic Server
Recovery event
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Introduction
■
View a log of Integrated Remote Console events
■
Allow users without supervisory access to modify their login passwords
Allow supervisory users to control access by other users
■
Remotely change the configuration parameters of Integrated Remote
Console
Benefits of Using Integrated Remote
Console
IRC advantages include:
■
Integrated, low-cost, hardware-based out-of-band management
■
Support for most standard, high-speed modems
■
Independent of the server operating system
■
Full-text mode support
■
Realistic remote console performance
■
ANSI compatible
Requirements
To use IRC, you must have:
■
A Compaq server equipped with IRC (listed in your server’s features)
■
Hayes-compatible, controller-based modem for the managed server (for
modem-based out-of-band access) or appropriate cable to couple server
to a terminal or terminal server
■
Management console equipped with the appropriate communications
hardware to establish a connection to IRC
■
Communications software that includes the ANSI terminal emulation
feature
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Installation Sequence Outline
In preparation for using IRC, the following tasks must be performed:
■
Prepare the management console with the necessary hardware and
software for out-of-band communication
■
Prepare the managed server for out-of-band communications by
installing a modem or connecting the managed server to a suitable
communications device
■
Configure the usage and communication parameters of IRC
■
Set up a list of authorized users and their permissions in the IRC user
database
figure2.EPS
CSR
TSR
CSR
CSR
TSR
CSR
CSR
CSR
CSR
TSR
CSR
CSR
TSR
CSR
CSR
CSR
Figure 1-1. Communication topology showing a modem-based out-of-band connection between a
managed server, left, and a management console, right
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1-4
Introduction
Terminology
Table 1-1 lists the standard terms used throughout this guide.
Table 1-1
IRC Terminology
Term
Definition
Managed Server
Server that contains IRC or server which can be
remotely managed through a variety of Compaq tools.
Management Console
Computer that runs management applications or
collects management data.
Management Application
Software running on the management console that
collects management data and/or provides access to
the managed server.
Terminal Server
Multiple port device that includes several serial port
connections and allows access to the managed
server via direct-line connection.
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1-5
Accessing Integrated Remote
Console
Integrated Remote Console can be accessed through either Compaq Insight
Manager or through any communications package that supports ANSI terminal
emulation. It can be accessed through Compaq Insight Manager by configuring
the modem remote console feature associated with the managed server. When
accessed through Insight Manager, Integrated Remote Console supports
dynamic text mode changes and extended keyboard functionality, including the
function and alternate keys.
Integrated Remote Console can also be accessed through any ANSI terminal
emulation program. This gives you multiple options in the choice of a server
management console application. In addition, Integrated Remote Console
supports complex keystroke combinations. You can synthesize complex
combinations, such as function and alternate keys, which would otherwise be
unavailable through the ANSI standard. As a result, virtually any keystroke
combination can be entered from any terminal emulation package. Integrated
Remote Console also supports different terminal line modes (for example, 80 x
25 or 80 x 50) in both monochrome and color.
Expected Audience
This document assumes that you are familiar with the setup and configuration
of Compaq server hardware and that you have a working knowledge of
Compaq Insight Manager. The Compaq Insight Manager User Guide is referred
to throughout this document.
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Chapter 2
Setup and Configuration
This chapter describes the steps required to implement Integrated Remote
Console (IRC) using an internal modem, external modem, or direct serial port
connection.
See Chapter 6 for information on supported modems and for additional
information pertaining to the appropriate configuration of modems with IRC.
To operate IRC by modem, the management console must be equipped with a
modem that is compatible with the modem in the managed server. Using
different classes of modems in the management console and managed server,
particularly if they are from different manufacturers, can cause various
connection problems, including the inability to obtain a login prompt. Using the
same type of modem from the same manufacturer in both the management
console and managed server is strongly recommended.
IMPORTANT: Most connectivity problems are caused by modems that
default to a “floating” computer-to-modem (or DCE-to-DTE) port speed. (U.S.
Robotics modems and others). For Integrated Remote Console to function
properly, both the modem in the management console and the modem in the
managed server must have the computer-to-modem port speed set to
“fixed.” This can be configured through initialization strings in both
Integrated Remote Console and the management application. See Chapter 6
and your modem's documentation for more information.
Installing the Modem
Consult the instructions for installing hardware options in the documentation
that accompanied your Compaq server. Consult the user documentation that
accompanied your modem for additional instructions specific to the modem,
including default settings.
For internal modems, the Compaq System Configuration Utility can be used to
determine the appropriate COM port and IRQ jumper settings.
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Setup and Configuration
Configuring the Modem
Configuring a non “plug-n-play” ISA Modem
The Compaq System Configuration Utility does not automatically detect non
plug-n-play ISA devices. Therefore, you must manually account for system
resources used by an installed ISA modem. To configure the modem:
1.
Boot the server and run the Compaq System Configuration Utility. This
utility can be run from floppies or by booting the Compaq SmartStart
and Support Software CD included with your server. If you created a
system partition during the initial setup of the server, you can invoke
this utility by pressing the F10 key when prompted during the server’s
power-on-self-test sequence.
2.
Select the System Configuration menu option from the utilities main
menu.
3.
Select Configure Hardware from the configuration menu.
4.
Select Step 2: Add or Remove Boards from the System Configuration
main menu.
5.
Press Insert to manually add a board to the server configuration.
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2-3
6.
Select !ISA0010.CFG Generic Modem (for use with IRC) from the list of
boards that appears.
Figure 2-1. Example: Selecting a configuration file
7. Select the slot where the modem is installed when the Configuration
Utility identifies appropriate slots for the modem, then press Enter.
8.
Press F10 to return to the System Configuration Main Menu.
9.
Select Step 3: View or Edit Details.
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Setup and Configuration
10. Set the COM and IRQ IRQ resources to match the jumper settings on
the modem. Note these settings as they are needed when configuring
Integrated Remote Console.
Figure 2-2. Example: Setting the COM and IRQ resources
Configuring an external modem or direct connection
If you are using an external modem or want to connect IRC directly to another
computer, terminal, or terminal server, you must first configure one of the
integrated serial ports on the managed server.
1.
In the System Configuration Utility, move the selector to Integrated
Interfaces in Step 3: View or Edit details. Highlight the serial port that
will be connected to the external device. Either serial port can be used
with Integrated Remote Console.
2.
Select the desired COM port resource setting. The recommended
settings are COM1 for Serial (A) or COM2 for Serial (B).
3.
Check the interrupt setting for the desired integrated serial port by
selecting Edit Resources (F6) when the COM port selection is
highlighted. Make sure that the configured interrupt setting is “edge”
triggered.
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4.
Note the COM and interrupt settings for the desired integrated serial
port; these are needed when configuring IRC.
Figure 2-3. Example: Configuring an integrated serial port
Figure 2-4. Example: Viewing the resources of an integrated serial port
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Setup and Configuration
Configuring Integrated Remote
Console
Use the System Configuration Utility to configure IRC. Table 2-1 summarizes
the System Configuration Utility configuration options and their default values.
Table 2-1
Integrated Remote Console Configuration Summary
Parameter
Configuration Value
(default settings in bold)
General Integrated Remote Console Information
Remote Console Functions
Enabled/Disabled
Communication Device
External Modem/Internal Modem/Direct Connect
Keyboard
United States, Belgian, British, Danish, Finnish,
French, French Canadian, German, Italian,
Japanese, Latin American, Norwegian, Portuguese,
Spanish, Swedish, Swiss French, Swiss German
Communication Settings
COM Port
COM1, COM2, COM3, COM4
Interrupt (Internal Modem only)
IRQ3, IRQ4, IRQ5
Sharing Options
Shared, Dedicated
Maximum DTE Baud Rate
19200, 38400, 57600, 115200
Data Bits
7, 8
Parity
None, Even, Odd
Stop Bits
1,2
Continued
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Integrated Remote Console Configuration Summary Continued
Parameter
Configuration Value
(default settings in bold)
Modem Settings (not required for direct connection)
Initialization String (primary)
ATZ
Initialization String (secondary)
AT&C1&D2
Dial Prefix
ATDT
Answer String
ATS0=1
Security Access
Supervisor
Yes/no
Remote Console
Yes/no
Reboot Server
Yes/no
Replay Boot Sequence
Yes/no
Force Dial-back
Yes/no
1.
Select Remote Console Functions from View or edit details, and set to
Enabled.
Figure 2-5. Example: Enabling Remote Console Functions
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2-8
Setup and Configuration
2.
Set the Keyboard type to match the layout of the keyboard on the
managed server. For proper remote keyboard operation, this setting must
match the keyboard country configuration of the server’s operating
system.
3.
Set Communications Device according to your hardware configuration:
a.
Internal Modem
b.
External Modem or
c.
Direct Connect if connecting with a null modem serial cable to
another computer, terminal, or terminal server.
4.
Configure the IRC modem resources. Set the COM port and interrupt
setting to match the hardware jumper settings on the internal modem , or
integrated serial port settings if connecting to an external device.
5.
To use this modem only for the IRC feature, select Dedicated under
Sharing Options.
To use a single modem for both IRC and Asynchronous System
Management, or to allow the operating system to access the modem,
accept the default setting of Shared.
NOTE: To use the “shared” modem setting, you must ensure that Integrated
Remote Console is configured identically to the modem configuration settings
of the operating system. See Chapter 8 and Appendix A for more information.
6.
Configure the COM port settings. Set the baud rate to the highest
reliable DTE rate for your modem. Most high-speed modems will
tolerate DTE rates as high as 38,400, 57,600 or 115,200 bps. Consult the
instructions supplied with the modem for the appropriate computer to
modem serial port speed. This setting will be greater than or equal to the
desired connection rate. The Data, Parity, and Stop settings should be
set to 8-None-1 respectively unless a 7-bit parity mode is required.
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Modem Strings
Configure the Modem Command Strings (not required for direct connect):
1.
Set the Primary and Secondary Initialization strings. These command
strings are used to initialize the modem used by IRC.
The Primary Initialization string must include the appropriate AT
command to reset the modem to a known state. Since AT command
strings can contain multiple configuration and command sub-strings,
this string can also contain additional configuration commands. (For
example, AT&F and AT&C1&D2 can usually be combined into one
command: AT&F&C1&D2.) Not all command strings can be
concatenated. For example, most modems ignore commands following
the ATZ command.
The Secondary Initialization string must include additional AT
configuration commands necessary to properly configure the modem for
use with IRC.
The configuration utility sets the Primary and Secondary Initialization
strings to “ATZ” and “AT&C1&D2,” respectively. These strings were
chosen since they generally apply to all modems. Your modem may
require different strings to operate properly. These initialization strings
must place the modem in the following state for proper operation with
Integrated Remote Console.
■
Computer to modem serial port speed:computer to modem, to fixed
(&B1 or \J0)
■
DCD serial port signal assertion to “normal” (&C1)
■
Modem responds correctly to DTR assertion (&D2)
■
Computer to modem serial port set for hardware flow control
■
Error correction enabled
Additional configuration options may be necessary if you have the modem
in the shared configuration. These settings are necessary to ensure that
Integrated Remote Console and the operating system have configured the
modem similarly. Additional configuration settings include:
■
Modem response format (numeric or verbose)
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Setup and Configuration
■
Modem result code options
Chapter 6 explains modem command strings in more detail. Chapter 8
provides additional information on using the modem in shared mode.
Appendix A contains suggested entries for proper initialization strings for
several common modems.
2.
Set Dial Prefix to either ATDT (tone - default) or ATDP (pulse)
dialing.
3.
The Answer String should contain the command string necessary to
place the modem in “auto-answer” mode. It will not accept calls if this
string is not set appropriately.
The default string, ATS0=1 places a Hayes-compatible modem in autoanswer mode, answering on the first ring.
Assigning Authorized Users
Before any users can log into IRC, the system administrator must set up a valid
user database. This is also performed through the System Configuration Utility.
Figure 2-6. Example: Configuring users
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User Configuration
You must have at least one user configured in the database to access IRC. The
maximum number of users is eight. Use the System Configuration Utility to
add, delete, or modify user entries. Users can also be added, deleted, or
modified online from the IRC Main Menu if the connected user has supervisor
privileges.
To edit user information:
1.
Select View or edit details from the System Configuration Utility.
2.
Highlight Configure Users, then press Enter.
Figure 2-7. Example: Selecting a user to modify
3. Highlight the desired user line, then press Enter. To add a user, simply
choose one of the unassigned entries.
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Setup and Configuration
4. Edit the following user information:
a.
User Name — Case-sensitive name that must be used when logging
into the Integrated Remote Console. User names can be up to 11
characters in length.
b.
Password — Case-sensitive password that the user must use when
logging into IRC. It must contain at least four characters and no
more than 15. When setting passwords, the administrator is
prompted for verification.
c.
Dial-Back Number — If dial-back security is desired for this user,
enter the user’s dial-back number and enable the Dial-Back option
in Security Access. When enabled, IRC logs the user out after
successful authentication and calls the user back at this number.
This prevents the user from logging in from an arbitrary location.
When entering telephone numbers, use only the following
characters: 0, 1, 2 ,3 ,4 ,5, 6, 7, 8, 9, ), (, space, comma, and hyphen.
Any other characters are ignored. The following are examples of
valid entries:
(713) 123-4567
(011612) 213231234
*70, 713-123-4567
1265312653612536
(73847) - 38 - 834378
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5. Verify/Change the user’s security settings. Position the highlight to
Security Access and press Enter. Ensure the correct setting of the
following security attributes:
Figure 2-8. Example: Edit User screen
a.
Supervisor Rights — A user with supervisor rights can remotely
modify all Integrated Remote Console configuration parameters,
including the addition, deletion, and modification of other users.
The default setting is disabled.
b.
Remote Console Rights — Authenticated user has remote access
to the managed server’s console. Users can be assigned login
access, but have no access to the server console. The default setting
is enabled.
c.
Reboot Server Rights — Authenticated user can remotely reboot
or power-cycle the managed server. The default setting is enabled.
d.
Boot Sequence Replay Rights — Authenticated user can replay
boot sequences stored in the Integrated Remote Console. The
default setting is enabled.
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Setup and Configuration
e.
Force Dial-back — Integrated Remote Console logs out the user
after successful authentication and calls the user back at the number
specified in the Dial Back Number entry of the user’s data structure.
This prevents the user from logging in from an arbitrary location.
Figure 2-9. Example: Setting Security Access
6. Press F10 until you return to the User Maintenance screen.
Repeat steps 1-6 for additional users.
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Chapter 3
Establishing a Connection
You can establish a connection to Integrated Remote Console (IRC) from any
ANSI X3.64 compatible terminal or terminal emulator. This section contains
specific information on how to establish a connection using either Compaq
Insight Manager or Windows HyperTerminal. In addition, this section contains
general guidelines necessary if an administrator wants to use a different
terminal emulator application.
Establishing a Connection Using
Compaq Insight Manager
Compaq Insight Manager is the recommended application for accessing IRC in
a managed server. Although IRC is designed to be accessible from any ANSI
compatible terminal, Insight Manager incorporates several keyboard and
terminal extensions to make certain tasks easier from within IRC. In addition,
Insight Manager combines access to the Compaq suite of remote management
tools into one convenient location.
Compaq Insight Manager provides the ability to manage multiple servers either
through a local area network (LAN) or a dial-up connection. In addition to
providing in-band manageability to these machines, Insight Manager provides
the ability to establish an out-of-band modem remote console session with any
of the managed servers. Out-of-band remote console access to a server’s
Integrated Remote Console feature can be enabled simply by supplying Insight
Manager with that server’s out-of-band management phone number. Once
completed, the Remote Console menu item is activated for this server and you
are able to use this menu item to establish a connection with Integrated Remote
Console.
To use the Insight Manager out-of-band remote console feature, both the
managed server and the management console must be equipped with
compatible (preferably identical) modems.
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Establishing a Connection
Configuring Insight Manager for
Out-of-Band Remote Console Access
To contact the IRC function of a server, there must be an entry for that server in
the Insight Manager device list. If an entry already exists for this server,
proceed to step #2.
1.
If the server containing Integrated Remote Console is available for inband management through a LAN connection, create an IPX or IP entry
for the server using methods described in the Compaq Insight Manager
User’s Guide.
Create a “PPP” entry if the server is accessible only via a point-to-point
connection.
This step is necessary for any server managed through Insight Manager
regardless of whether out-of-band remote console access is configured
or desired.
2.
Right-click the server name created in step #1 from the Insight Manager
Device List window to display a list of functions you can perform on the
selected server.
3.
Select Device Setup. The Device Setup dialog box is displayed.
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Figure 3-1. Device Setup window
4.
Enter the phone number of the managed server in the Modem Remote
Console configuration group.
5.
Verify the COM port settings to ensure they are correct and reflect the
configuration of the modem in the management console.
NOTE: The COM port used for this configuration setting is based entirely
upon the hardware setup of the management console and is not related in any
way to the COM port setup of IRC.
6. Click OK to complete the configuration.
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Establishing a Connection
Establishing an Out-of-Band Remote Console
Connection
Right-click the managed server in the device list to display a list of menu items,
as shown in Figure 3-2.
Figure 3-2. Establishing a connection using Compaq Insight Manager
If the server is configured for out-of-band remote console access, the Remote
Console menu option is available. Select this menu item to initiate a remote
console, out-of-band session with the managed server. In certain circumstances,
Insight Manager may prompt you to select between a network or modem
remote console session. Select Modem Remote Console to access the IRC
feature on the managed server.
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Insight Manager launches a terminal window and dials the number configured
above. The call progress is displayed in the terminal window’s status bar. If
configured correctly, IRC on the managed server answers the call. If the server
does not answer (possibly indicating that the OS currently owns the modem),
wait 60 seconds and try again. For more troubleshooting information, see
Appendix C.
Invoke Integrated Remote Console Login
When Insight Manager indicates that the connection is established
(“Connected” is displayed in the terminal status window), press Enter three
times. This tells the managed server that the incoming call is intended for
Integrated Remote Console.
IMPORTANT: After connection has been established, you have 10 seconds
to press the ENTER key three times to validate the call. Pressing any other
key combination or pressing the correct key combination after the 10-second
interval causes the call to be forwarded to the OS and does not invoke IRC. If
this occurs and modem sharing is enabled, IRC is unavailable for at least 60
seconds following the failed login attempt. Wait 60 seconds and try again.
After the login is successfully invoked, see the section “Login” later in this
chapter.
Benefits of Using Insight Manager to
Establish the Connection
One of the benefits of accessing IRC through Insight Manager is enhanced
keyboard support. Certain key sequences, like the function and Alt keys, are
not available through strict ANSI emulation. These key sequences are
necessary to perform certain remote server operations. (Pressing F10 to invoke
system partition utilities, for example). If IRC detects Insight Manager is the
control application, many of these key sequences are directly supported and do
not require attention sequences. See chapter 4 for the enhanced key sequences
available directly through Insight Manager.
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Establishing a Connection
In addition to enhanced keyboard support, Insight Manager also offers
enhanced display support. If the server console changes to a different display
mode, this change is automatically updated in the Insight Manager terminal
window. This is particularly useful when managing a Microsoft NT server,
which changes from 25-line to 50-line text modes during the OS load process.
An additional feature is the Switch Consoles button, which appears below the
status bar in the terminal window. This button conveniently switches between
the Remote Console mode and the Integrated Remote Console main menu.
Verifying Modem Settings
A majority of IRC connection problems are actually caused by improper
configuration of the modem on the management console. For consistent and
reliable out-of-band connections to IRC, the modem in the management
console must be configured as follows:
■
Computer to modem serial port speed to “fixed” (&B1 or \J0)
■
DCD serial port signal assertion to “normal” (&C1)
■
Modem responds correctly to DTR assertion (&D2)
■
Computer to modem serial port set for “hardware flow control”
■
Error correction “enabled”
Chapter 6 contains additional information on the settings listed above. If you
are having trouble connecting to the Integrated Remote Console feature on a
managed server, particularly if a connection is established but you are unable to
obtain a login prompt, check the modem initialization strings within Compaq
Insight Manager. To verify or modify the out-of-band modem initialization
strings:
1.
Select Setup →COM Ports… from within Insight Manager.
2.
Click Setup next to the COM port used for out-of-band access.
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Figure 3-3. COM port settings
3.
The COM port settings dialog box is displayed. The modem
initialization string for out-of-band access on the management console is
listed in the Modem Control Strings control group. The default value is
“AT&F&C1&D2E0S0=0”. Additional configuration settings may need
to be appended to this string (for example, some modems may require
appending an &B1 (set computer-to-modem speed to fixed) resulting in
a string like “AT&F&C1&D2E0S0=0&B1”). To finish configuration,
click OK.
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Establishing a Connection
Establishing a Connection Using
Windows HyperTerminal
HyperTerminal is a terminal emulation application generally available on any
Windows-based management console. Since it supports ANSI terminal
emulation and is a standard part of Microsoft Windows 95 and Windows NT, it
serves as a good example of how an administrator could manage an Integrated
Remote Console-based server from a standard ANSI terminal. Although the
following information is specific to HyperTerminal, many of the concepts
apply to other terminal emulation applications.
There are some limitations if you are not connecting to Integrated Remote
Console through Compaq Insight Manager. Limitations specific to the
HyperTerminal application include:
■
Server video is limited to 24 lines — The terminal size for ANSI
emulation within HyperTerminal is 24 lines and is not configurable. As
a result, Integrated Remote Console can only display the first 24 lines of
server video, regardless of the video mode currently displayed on the
server. Be sure to set the terminal size within Integrated Remote
Console to 24 lines for remote console video to be drawn correctly.
■
Must use attention sequence [Atn] Esc to return to the IRC main menu
from remote console mode.
■
Must use attention key sequences to generate the following key
sequences to the server:
❏
function keys (F1-F12)
❏
ALT- keys (ALT-F, and so on)
❏
Editing keys (Insert, Delete, Home, End, Page Up, Page Down)
NOTE:
See Chapter 5 for more information on attention key sequences.
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■
No auto-answer support — Must manually enter modem commands in
the terminal window to take advantage of call back.
IMPORTANT: Make sure your IRC firmware revision revision is 1.41 or
greater if you wish to use HyperTerminal to connect to IRC. In certain
circumstances, HyperTerminal may not accurately transmit characters until
is has received characters from the remote system. Consequently, the Enter,
Enter, Enter sequence may not be correctly sent by HyperTerminal, even
though it was typed correctly by the administrator. If IRC receives any
characters other than the three carriage return sequence, it rejects the call
and does not display the login prompt. IRC Firmware revisions 1.41 or
greater automatically detect this condition to work-around the HyperTerminal
anomaly. To update your IRC firmware, obtain the latest ROMPaq ROM
update for your server.
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Establishing a Connection
Setting up a Connection
To access IRC from within HyperTerminal, you must first create a “connection
file.” This file contains the phone number and session-specific settings, which
can be used for future connections.
To create a connection file:
1.
Select New Connection from the File menu. The initial dialog box,
shown in Figure 3-4, prompts you for a name for the connection file.
Figure 3-4. Entering a connection file name
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2.
Enter a name that describes the managed server, then click OK.
3.
Enter the server phone number. Also verify that the modem identified
under “Connect using:” correctly describes the modem in the
management console, then click OK.
Figure 3-5. Entering connection details
HyperTerminal is now ready to dial into the managed server.
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Establishing a Connection
4.
Verify that HyperTerminal has the correct phone number, complete with
any prefix codes that may be required to access outside lines or long
distance services. Use Modify… and Dialing Properties… to make any
corrections.
Figure 3-6. Connection window
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5.
After verifying the phone number, click Dial. You should be prompted
with a status dialog box and hear the modem establishing connection
with the managed server.
Figure 3-7. Establish a connection using HyperTerminal
The HyperTerminal application should indicate that a call is in progress. If
configured correctly, IRC answers the call. If the server does not answer answer
(possibly indicating that the OS currently owns the modem), wait 60 seconds
and try again. For more troubleshooting information, see Appendix C.
Upon connection, the status dialog box closes and returns you to the terminal
window. Notice that the status bar of the terminal window indicates
“Connected.”
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Establishing a Connection
Invoke Integrated Remote Console Login
After HyperTerminal establishes a connection, press Enter three times. This
indicates that the incoming call is intended for Integrated Remote Console.
IMPORTANT: After connection has been established, you have 10 seconds
to press Enter three times to validate the call. Pressing any other key
combination or pressing the correct key combination after the 10-second
interval will cause the call to be forwarded to the OS and will not invoke
Integrated Remote Console. If this occurs and modem sharing is enabled, IRC
is unavailable for at least 60 seconds following the failed login attempt. Wait
60 seconds and try again.
After the login is successfully invoked, see the section “Login” later in this
chapter.
Saving a Connection
After verifying the connection information, select File Save so that future
Remote Console sessions can be invoked by selecting File Open, or by
simply clicking the saved name.ht file from Windows Explorer.
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Establishing a Connection Using an
ANSI Compatible Terminal Emulator
The ANSI terminal standard allows access to IRC from most standard terminal
emulation applications.
Configuration Guidelines
The following are general guidelines for using ANSI terminal emulation
programs to access Remote Console.
Display Settings
Display font — If the display font of your terminal application can be
configured, choose a font that supports the OEM (Original Equipment
Manufacturer) character set. The “terminal” font is usually a good choice. If
your terminal application is configured for a non-OEM-based font, some of the
graphic line-draw characters used in the Remote Console menu system may not
be drawn correctly.
Terminal settings
Terminal Size — If the terminal size of your terminal application is
configurable, set it to the maximum number of lines to be displayed on the
server console. For Netware and Unix applications, 25 lines is the appropriate
setting to ensure that all lines on the server console are visible on the remote
terminal. Windows NT, however, switches to a 50-line mode during OS load
and during “blue-screen” error conditions. To insure that this information is
also visible on the terminal, set the terminal size to 50 lines. The terminal size
setting within Integrated Remote Console must be set to match the setting of
your terminal application to function correctly.
■
Line Wrap — Make sure your terminal application is configured to wrap
lines that exceed terminal width. This is the default in most terminal
applications.
■
Backspace key mapping — Some terminal applications allow the
backspace key to either be mapped to Backspace (Ctrl+H) or Delete.
Make sure that Backspace is mapped to Ctrl+H and not Delete.
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Establishing a Connection
■
Screen Scroll — Make sure that screen scroll is enabled. Again, this is
the default in most terminal applications.
Modem settings
A majority of IRC connection problems are actually caused by improper
configuration of the modem on the management console. If your terminal
emulation application supports TAPI (like HyperTerminal), the application
should configure the modem correctly using information in the Windows
modem database. If your terminal emulation application directly accesses the
modem in the management console, make sure the modem initialization strings
in the management console place the modem in the following state:
■
Computer to modem serial port speed to “fixed” (&B1 or \J0)
■
DCD serial port signal assertion to “normal” (&C1)
■
Modem responds correctly to DTR assertion (&D2)
■
Computer to modem serial port set for “hardware flow control”
■
Error correction “enabled”
Chapter 6 contains additional information on the settings listed above.
Limitations
Many aspects of IRC accommodate any ANSI terminal emulation application.
There are, however, some limitations to be aware of when operating IRC from
these applications. These include:
■
Screen Size — The screen size of the terminal window must be
manually configured in both the terminal application and IRC.
■
Keyboard Support — Attention key sequences will usually need to be
used to simulate keystrokes for the function, Alt, arrow, and editing
keys (Page Up, Page Down, Home, End, Insert, Delete).
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■
Callback Support — You need to manually place the modem in autoanswer mode if either of the following situations occur:
❏
callback authentication is required to complete your login
❏
you want IRC to automatically reestablish a connection following a
remote power cycle
Establishing a Connection
After verifying the proper configuration of the terminal emulator settings,
instruct the application to dial into the managed server. The terminal emulator
application should indicate that a call is in progress. If configured correctly,
IRC answers the call. If the server does not answer (possibly indicating that the
OS currently owns the modem), wait 60 seconds and try again. For more
troubleshooting information, see Appendix C.
Invoke IRC Login
When the terminal emulator verifies that the connection is established, press
Enter three times. This action indicates that the incoming call is intended for
IRC.
IMPORTANT: After connection has been established, you have 10 seconds
to press Enter three times to validate the call. Pressing any other key
combination or pressing the correct key combination after the 10-second
interval causes the call to be forwarded to the OS and does not invoke IRC. If
this occurs and modem sharing is enabled, IRC is unavailable for at least 60
seconds following the failed login attempt. Wait 60 seconds and try again.
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Establishing a Connection
Login
After a connection has been established using one of the management
applications described above, and the call has been validated by pressing Enter
three times, IRC responds by displaying a login prompt, as shown in
Figure 3-8.
Figure 3-8. Remote Console displays login prompt after successful call identification
To log in to IRC:
1.
Enter a valid username, then press Enter.
2.
Enter a valid password, then press Enter.
If dial-back security is not turned on for your login and you have entered a
valid username and password, you are successfully logged into the Integrated
Remote Console application.
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If you established your connection using any standard terminal emulation
program that supports ANSI, the Integrated Remote Console application main
menu displays as shown in Figure 3-9 after you have successfully logged in.
Figure 3-9. Remote Console Main Menu
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Establishing a Connection
If you established your connection with Insight Manager through the Remote
Console menu option, Insight Manager automatically switches you into Remote
Console mode following login, as shown in Figure 3-10. To return to the main
menu, simply click Switch Consoles, located at the bottom of the Insight
Manager terminal window.
Figure 3-10. Remote Console mode
The Remote Console main menu, as shown in Figure 3-9, is the main control
center for the various functions available through IRC. See Chapter 4 for
information on using the functions of Remote Console.
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Chapter 4
Using Integrated Remote
Console
Use the instructions in Chapter 3 to establish a connection to the managed
server and to log in to Integrated Remote Console (IRC).
If you establish your connection using an application other than Compaq
Insight Manager, the Integrated Remote Console Main Menu displays, as
shown in Figure 4-1, after you have successfully logged in.
Figure 4-1. Remote Console Main Menu
The Main Menu is the main control center for the various functions available
through IRC.
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Using Integrated Remote Console
If you establish your connection through the “Remote Console” menu option
within Insight Manager, you are automatically switched into Remote Console
mode following login, as shown in Figure 4-2. To return to the Main Menu,
simply click Switch Consoles, located at the bottom of the Insight Manager
terminal window.
Figure 4-2. Remote Console mode
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Main Menu Options
The following options are available from the Main Menu.
■
Remote Console — Redirects the managed server’s console to the
management console to provide the user with remote control
capabilities, regardless of the software running on the managed server.
■
Reboot Server — Lets you reset the managed server. Use this only as a
last resort; it performs an unconditional reset of the server.
■
View Reboot Sequence -— Lets you view all recorded video activity
following an Automatic Server Recovery (ASR) event. This includes all
ROM POST messages and operating system load information.
■
View Event Log — Lets you examine the IRC event log.
■
Change Password — Lets users without supervisory access modify
their login password.
■
Manage Login Information — Lets a user with supervisory access add
or delete users or modify an existing user’s configuration.
■
Manage Configuration — Lets an administrator remotely change the
configuration parameters of Integrated Remote Console.
■
Disconnect — Lets the user terminate the connection with IRC.
This chapter discusses each of the menu options in the order listed above.
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Using Integrated Remote Console
Remote Console Menu Option
One of the primary control features offered by IRC is its ability to allow a user
remote access to the managed server’s console.
Enter remote console mode by selecting Remote Console… from the Main
Menu. This can be done by positioning the cursor, then pressing Enter. If your
terminal emulation program supports arrow keys (as does Insight Manager and
HyperTerminal), the UP and DOWN arrow keys can be used to move the
highlight bar to the various items available from this menu. If your application
does not support the arrow keys, the I and M keys can be used to perform this
function. See Table 4-1 for more information about navigating from within
Integrated Remote Console. After selecting Remote Console… from the main
menu, the Remote Console submenu is displayed as shown in Figure 4-3. This
menu allows you to:
■
Begin a Remote Console Session
■
Change the default attention key
■
Change the terminal screen size
■
Return to the Main Menu
Figure 4-3. Remote Console submenu
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Beginning a Remote Console Session
If the attention key and terminal size settings are correct, select Begin a Remote
Console Session to enter the Remote Console mode. The managed server
console is displayed if the following conditions are met:
■
The user has remote console access to the server.
■
The managed server is in text mode. If the managed server is in graphics
mode, an appropriate message is displayed.
In this mode, characters typed into the terminal emulation window are
redirected to the managed server. Figure 4-4 shows an example of remote
console mode. In this example, the server is running the Windows NT operating
system and is currently waiting for input at the initial OS Loader.
Figure 4-4. Using Remote Console mode
In this example, the arrow keys can be used to move the selector to the
appropriate operating system choice. Again, if your terminal emulator supports
arrow keys (true for Insight Manager and HyperTerminal), you can move the
selector bar using these keys, as you would at the server console.
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Using Integrated Remote Console
Table 4-1
Key Functions for Navigating the IRC Menu System
Key
Function
1-9
Moves and selects the corresponding menu item
↑ or I
Scrolls the highlighted selection up. The “I” key can be used to
navigate the menus from ANSI terminal programs that do not support
the up and down arrow keys.
↓ or M
Scrolls the highlighted selection down. The “M” key can be used to
navigate the menus from ANSI terminal programs that do not support
the up and down arrow keys.
Tab
Moves to the next selection.
[Atn] Esc
Exits the Remote Console session. This is a two-key sequence
performed by first pressing the user-definable attention key and then
pressing the Esc key. See Chapter 5 for more information on entering
attention key sequences.
Enter
Displays the next level menu, detail information for a selected item, or
terminates editing and accepts changes.
Esc
Cancels the current event and returns to the previous screen. A
confirmation message is displayed to verify that you have saved any
changes.
Page Up or O
Displays the previous page.
Page Down or ,
(comma)
Displays the next page.
Space
Toggles between two options.
Home or U
Returns to the top.
End or N
Moves to the bottom.
If your terminal emulator does not support the arrow keys, you can still
generate these keys by using attention key sequences (described in detail in
Chapter 5). The attention key sequence for generating the up and down arrow
keys in Remote Console mode is [Atn]I and [Atn]M respectively. For this
example, the attention key method is used to move the selector to the “MSDOS” entry.
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In this example, the attention key is defined to its default: Ctrl+A. To perform
a down-arrow attention key sequence:
1.
Hold the Ctrl key down while pressing the A key on the terminal
keyboard.
2.
Release both keys making sure to release the Ctrl key last. This informs
IRC that you want to generate an enhanced key sequence. There is no
change to the server console, since Remote Console is waiting for the
next key to complete the sequence.
3.
Press the M key. The down-arrow key sequence is complete.
Since the M key was preceded by the attention key [Ctrl + A], IRC presses the
down-arrow key on the managed server’s keyboard. The M key used to
complete the attention sequence is not case sensitive.
NOTE: Remote Console interprets the character sequence the same
regardless of the state of the CAPS LOCK key on the terminal emulator
keyboard.
Keep in mind that your are actually composing this character sequence by
entering two distinct characters: first the [Ctrl+A] and then the M. It is
incorrect, for example, to hold down all three keys (Ctrl+A+M) at the same
time. If you have entered this sequence correctly, Remote Console generates a
down-arrow to the managed server, which moves the highlight down one entry.
You can move the highlight down one more entry by repeating the above
sequence.
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The terminal emulator interactively displays any changes to the server console
as they are typed, as shown in Figure 4-5.
Figure 4-5. Selecting MS DOS as the operating system
Press Enter to select the operating system.
Returning to the Main Menu
To return to the Main Menu from remote console mode, you must enter an
attention key sequence to distinguish this command from keys that might be
valid or desired for server control. The attention key sequence to return to the
Main Menu is [Atn] Esc. This is done by entering the attention key as
described in the down-arrow example, followed by Esc. The same rules apply.
That is, the sequence consists of Ctrl+A followed by Esc. It is incorrect to
press all three keys at the same time. Successful entry of this character
sequence returns you to the Main Menu.
If you are using Compaq Insight Manager as the terminal emulation
application, the process of switching between the main menu and remote
console mode is greatly simplified by the Switch Consoles button, located at
the bottom of the terminal emulation window. Click this button to toggle
between the two modes and bypass the Remote Console submenu.
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In addition to the Switch Consoles feature, Insight Manager offers enhanced
keyboard and terminal support. As a result, the function keys (F1-F12) and Alt
sequences can be performed on the terminal console, without having to use
attention sequences. In addition, the Insight Manager terminal window
dynamically resizes itself to match the screen size of the server console.
Windows NT, for example, changes between 25-line and 50-line mode during
its boot process.
Note that your ability to control the server is not dependent upon any special
software running on the server, nor it is restricted to when the managed server
is in a particular state (like running BIOS). This allows you to inspect and
control the server between operating system transitions or when the server is
completely off line.
Changing the Default Attention Key
The attention key is important since it must be used to exit from remote console
mode and return to the Main Menu. Be sure to note the currently defined
attention key before entering Remote Console mode. Figure 4-3 illustrates the
default attention key setting of Ctrl + A.
The Change Attention Key menu option lets you modify the key that is used to
generate unavailable key sequences and special command sequences from
standard ANSI terminal emulation programs.
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Using Integrated Remote Console
When the Change Attention Key menu option is selected, IRC prompts you to
enter a new attention key. A screen similar to Figure 4-6 is displayed.
Figure 4-6. Change Attention Key screen
The default attention key for a new user is Ctrl + A. If a user modifies the
attention key, the modified value is saved in the user database. Different users
can use different attention keys.
An attention key may be any ASCII key, preferably a key that is infrequently
used. For this reason, numbers and upper and lower case numbers are not
allowed to be assigned as the attention key.
See Chapter 5 for a complete listing of attention key sequences.
Changing the Terminal Screen Size
This option allows you to accurately view the server console from the remote
terminal program. Users accessing IRC from Compaq Insight Manager do not
need to change this setting, since Insight Manager’s terminal window
automatically adjusts to the correct number of lines as the server changes video
modes.
For proper operation, this setting must match the number of lines currently
displayed by the remote user’s ANSI terminal. Most standard ANSI terminal
emulation packages, like HyperTerminal, default to a screen size of 80 columns
by 24 rows. This mode can be accommodated by IRC by changing the terminal
size setting to 24 rows. However, since the server display usually contains at
least 25 rows, all rows which extend beyond the terminal size setting are
shortened.
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Most of the more advanced ANSI terminal emulation packages allow
adjustment of the number of displayed rows. If this is the case, it is
recommended that both the remote terminal and the terminal size settings be
adjusted to accommodate the maximum number of lines which will usually be
displayed on the server console. For instance, if the managed server operating
system is Windows NT, the recommended terminal size is 50 lines, since
Windows NT uses this video mode during operation system load and during
“blue screen” trap conditions. If both the terminal emulation application and
IRC are configured for more lines than are currently being displayed on the
managed server, IRC adjusts the output so it is correctly displayed on the
Management Console. This allows you to use one terminal size setting for all
display modes.
If you are using a terminal emulation package that supports 25 lines, make sure
that the terminal application is correctly configured for 25 lines. If the terminal
emulation package does not support 25 lines (like HyperTerminal), IRC must
be configured to match this limitation. In either case, the terminal size setting in
IRC and the terminal emulation application must match for correct display. IRC
saves this setting in your user profile, so changes to the terminal size are
retained between sessions. If the terminal size requires adjustment, select the
“Change Terminal Size” option from the Remote Console submenu. Adjust the
terminal size to either 24, 25, 43, or 50 lines.
Return to Main Menu
You can return to the IRC Main Menu by pressing Esc or selecting this option.
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Using Integrated Remote Console
Reboot Server Menu Option
It may become necessary to reboot a server that has gone off line and is no
longer accessible through the OS. Compaq Automatic Server Recovery can be
configured to reboot the server automatically when this condition is
determined. In some instances, however, the administrator may want to control
this reset event so that it can be interactively invoked and monitored.
For this example, a catastrophic error was intentionally introduced in the
Windows NT operating system. This server is no longer available through OSbased tools since the operating system is off line. If this server is equipped with
IRC, it is still accessible and can be rebooted remotely.
To establish a connection with IRC in this server, use the steps described in
Chapter 3. Upon entering Remote Console mode, notice that the operating
system is currently off line and is displaying valuable information about the
failure, as shown in Figure 4-7.
Figure 4-7. Example of a failure situation
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This debug information can be easily captured for later analysis by using the
Copy to Clipboard function of the terminal emulator application. In Insight
Manager this can be done by clicking Copy, located at the bottom of the
terminal window.
From visual inspection of the server console, you can see that the operating
system is off line. To restore this server to an online state, it must rebooted.
This can be done by returning to the Main Menu and selecting the Reboot
Server… menu option.
To return to the Main Menu, press the [Atn] Esc sequence, described earlier in
this chapter. If you are using the terminal window from within Insight Manager,
click Switch Consoles.
After switching to the Main Menu, select Reboot Server…. This invokes the
Reboot Server submenu shown in Figure 4-8.
Figure 4-8. Server Reboot menu
From this menu, you can reboot the server in one of two ways:
■
Perform a low-level reset of the server and all connected peripherals.
This is the same type of reset that occurs following an Automatic Server
Recovery event. Although the server itself is reset, you remain
connected and can monitor the reboot process from within Remote
Console mode.
■
Cycle Power to the Server is available on servers that support this
feature. Since both Remote Console and the modem rely on server
power to function, you cannot remain connected to the server through
this type of reset. However, Remote Console can be configured to
automatically reestablish the connection when power returns.
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Using Integrated Remote Console
In this example, the server is reset by selecting Reboot Server…. Remote
Console prompts you for verification, since this unconditionally resets the
server.
Figure 4-9. Reboot Server warning
Press Y to begin the server reboot process. Following the server reset event,
Remote Console automatically places you in Remote Console mode so that you
can interactively monitor the reset process. After several seconds, the server
initializes its video controller, and you see the power-on-self-test (POST)
messages of the server’s reboot process. Note that in this mode, you can control
the reset flow by entering commands at the terminal keyboard. These are
interpreted in the same way as commands entered at the server console. This
allows you to run diagnostics or pause the reset process to inspect possible error
messages.
You may choose to perform the Complete Power Cycle option for the Reboot
Server submenu. Since both IRC and the modem will lose power, IRC asks you
if you want to be called back when the power returns. A screen similar to
Figure 4-10 is displayed.
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Figure 4-10. Power Cycle warning
Type Y to instruct Remote Console to attempt to automatically reestablish the
connection upon power-up. Integrated Remote Console prompts for the phone
number of the management console. After entering the phone number of the
management console, you are prompted for verification one last time. Type Y
to initiate the remote server power down sequence.
Figure 4-11. Power Cycle dial back
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Using Integrated Remote Console
If you are using Insight Manager as the terminal application, as shown in Figure
4-11, the reconnection is reestablished without user intervention. The Insight
Manager terminal window is placed into “Callback mode”, indicated by the
phrase “Waiting for Callback…” located in the status window. When power
returns to the server, Remote Console uses the supplied phone number to
attempt to reestablish a connection. Insight Manager answers the incoming call
and redisplays the Main Menu.
If you are using a standard ANSI terminal emulation application, like Windows
HyperTerminal, the method for putting the modem in auto-answer mode varies.
Some applications, like HyperTerminal, do not provide for answering incoming
calls. The modem can be manually placed in auto-answer mode by entering the
modem auto answer string (usually “ATS0=1”) followed by Enter. The modem
responds by displaying “OK” in the terminal window. The modem answers the
incoming call from Remote Console.
NOTE: Insight Manager is the recommended management application if this
functionality is desired.
Figure 4-12. Power Cycle using ANSI terminal emulation emulation
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View Reboot Sequence
Selecting the View Reboot Sequence option from the IRC Main Menu lets you
view a stored boot sequence. The IRC boot sequence recorder starts
automatically following an Automatic Server Recovery (ASR) event. The boot
sequence contains all ROM POST messages and operating system load
messages that were displayed on the managed server console while it was being
rebooted. If the Compaq Health Driver for your particular operating system is
loaded, this sequence will also include a snapshot of the server console at the
time the ASR event occurred. Boot sequences are stored in system memory and
are not available once the server power has been deactivated.
When the boot sequence recorder is activated, all text-mode video data is
collected until the boot sequence recorder is full or the recorder duration timer
expires (approximately five minutes). The recorder duration timer insures that
even the minimal overhead necessary to sustain the boot sequence recorder will
not affect server performance.
If IRC contains a valid boot sequence, the View Reboot Sequence menu option
is available. If this menu option is gray or inactive, there is no boot sequence to
view. Select View Reboot Sequence from the Main Menu to display a screen
similar to Figure 4-13, showing the commands that control sequence playback.
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Using Integrated Remote Console
Figure 4-13. Reboot Replay Sequence screen
You can adjust the playback speed using keys 1-9. The space bar can be used to
stop/start the playback. After the sequence has been played, you are returned to
the main menu. Pressing Esc terminates the sequence replay and immediately
returns you to the main menu.
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View Event Log
Select View Event Log from the Main Menu to view the IRC Event Log, as
shown in Figure 4-14.
Figure 4-14. Event Log screen
If the event log contains multiple pages of information, you may navigate
through these pages using Page Up, Page Down, Home, or End (or character
equivalents). The following events are logged as they occur:
■
IRC user login
■
Failed login attempt
■
IRC user logout
■
Server logged critical error(s)
■
Event log cleared
■
Server reset
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Using Integrated Remote Console
Additional events may be present or available through future firmware
upgrades. To clear the contents of the event log, press Delete. To return to the
Main Menu, press Esc.
Change Password
The Change Password option is available to users without supervisory access.
These users are permitted to change their own passwords, but are prohibited
from viewing or changing any other user attributes in the user database. IRC
prompts the user for the old password, the new password, and for new password
confirmation. A screen similar to the one shown in Figure 4-15 displays.
Figure 4-15. Change Password screen
The password is changed if the following conditions are met:
■
The old password matches the current password for the user
■
The new password confirmation matches the new password
■
The new password is at least 4 characters in length
■
Password entry has not been terminated by pressing Esc
Valid passwords must contain at least four characters and not more than 15.
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Manage Login Information
Manage Login Information is available to users with supervisory rights. This
option enables an administrator to add or delete users or modify an existing
user’s configuration remotely. Select Manage Login Information to display a
screen similar to that shown in Figure 4-16.
Figure 4-16. Manage Login Information screen
Press A to add a user. You are then prompted to fill in the added user
information.
To delete or modify a user, position the highlight next to the desired user and
press Enter to edit the highlighted user, or D to delete the highlighted user. A
confirmation message is displayed before a user is deleted.
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Using Integrated Remote Console
Modify User Information
After selecting a user from the Manage Login Information screen, a screen
similar to the one in Figure 4-17 displays. For new users, all fields are set to
defaults.
Figure 4-17. Example: Modify User Information screen
See “User Configuration” in Chapter 2 for a description of the various fields in
the Modify User Information dialog box.
To edit, position the highlight next to the desired field and press Enter to
select. Security rights may be toggled by pressing the space bar. To accept
changes, select Save Modified Information. To cancel changes, press Esc.
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Manage Configuration
The Manage Configuration option, available to users with supervisory rights,
allows an administrator to view or change the configuration parameters of IRC
remotely. Since many configuration options are necessary for the proper
operation of IRC, care must be exercised when making changes. Selecting
Manage Configuration presents a screen similar to that shown in Figure 4-18.
Figure 4-18. Manage Configuration screen
From this screen, the administrator can perform the following functions:
■
Remote Console Functions — Toggles the status of Remote Console
Functions from Enabled to Disabled.
IMPORTANT: If Remote Console Functions are remotely disabled, IRC no
longer accepts incoming calls. IRC can only be re-enabled by running the
Compaq System Configuration Utility.
■
Keyboard Type — Specifies which country-specific keyboard is
attached to the managed server. For proper remote keyboard operation,
this setting must match the keyboard country configuration of the
server’s OS. This option allows the administrator to ensure that the
keyboard type matches the keyboard configuration of the server.
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Using Integrated Remote Console
■
Communications Setup… — Allows the administrator to view or
change all communication parameters used by Integrated Remote
Console.
■
System Information… — Displays hardware and firmware revision
information pertaining to the managed server.
■
IRC Information — Displays hardware and firmware revision
information pertaining to Integrated Remote Console.
To edit or select a particular item, position the highlight to the desired field and
press Enter. To accept changes, select Save Modified Information. To reject
changes, press Esc.
Changes made in the Communications Setup configuration screen are
permanent if you accept these changes as they are applied. The Save Modified
Information pertains only to changes made to the Remote Console Functions
and Keyboard Type fields.
Communications Setup
Selecting Communications Setup from the Manage Configuration screen
displays the administrator screen, similar to the one shown in Figure 4-19.
Figure 4-19. Communications Setup screen
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NOTE: The Compaq System Configuration Utility helps in the initial setup of
communications setup parameters.
The following communications parameters can be changed from this screen:
■
Baud Rate
■
Data Bits
■
Stop Bits
■
Parity
See Chapter 2 for detailed information on these parameters. To edit or select a
particular item, position the highlight on the desired field and press Enter. To
accept changes, select Save Modified Information. To reject changes, press
Esc.
Modem Strings
Select Edit Modem Strings at the Communications Setup screen to display a
screen similar to that shown in Figure 4-20. Again, see Chapter 2 for detailed
information on how these strings should be set. See Appendix A for additional
information on modem configuration commands and parameters.
Figure 4-20. Edit Modem Strings screen
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Using Integrated Remote Console
From this screen, the administrator can change the strings used to initialize and
communicate with the modem. See Chapter 2 for detailed information on the
modem strings.
To change any of the modem strings, position the highlight next to the desired
field and press Enter. To accept changes made to these strings, select Save
Modified Information. To restore default modem strings, select Restore Default
Modem Strings. To cancel changes, press Esc.
Disconnecting
You can terminate an IRC session at any time either by selecting Disconnect
from the Main menu or the Close or Disconnect option from terminal emulation
applications. The logout event is appended to the IRC connection log.
Figure 4-21. Terminating the connection
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Chapter 5
Using Attention Key Sequences
You can use attention key sequences in Remote Console mode to maximize
ANSI terminal emulation functionality. Integrated Remote Console (IRC)
provides a mechanism to enter complicated key sequences otherwise
unavailable from a standard ANSI terminal emulation program. This
mechanism consists of key sequences where you press a configurable “attention
key” followed by a standard ANSI key.
The attention key is actually a combination of key strokes (usually two) that
alerts the server that a command is about to follow. IRC lets you define the
attention key, or you can use the default selection Ctrl + A.
Attention key sequences are used to perform three types of functions:
■
Attention Key Command Sequences
■
Attention Key Support Sequences
■
Attention Key Compose Sequences
Each of the items is described in detail in the following sections.
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Using Attention Key Sequences
Attention Key Command Sequences
These sequences, listed in Table 5-1, issue an instruction to IRC from within
remote console mode.
Table 5-1
Attention Key Command Sequences
Key
Command
[Atn] Esc
Exits the Remote Console mode and displays the IRC Main
Menu.
[Atn] Space
Instructs the Integrated Remote Console application to refresh
the server console screen on the remote terminal. This
command is only necessary if the remote terminal program is
reset or instructed to clear its screen.
Example: Returning to IRC Main Menu
For example, to exit the Remote Console mode and display the Main Menu:
1.
Enter the attention key. In this example the attention key is set to its
default: Ctrl+A. Press both the Ctrl and the A keys down
simultaneously. Release both keys, making sure to release the Ctrl key
last.
2.
Enter the command to exit Remote Console mode and return to the main
menu. This command is key is Esc.
Step 1 signals IRC that a special key sequence is to follow. The Esc key
pressed in step 2 is therefore interpreted as the “exit to Remote Console mode”
command and not interpreted as a keystroke needing to be typed at the server
keyboard.
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Attention Key Support Sequences
These sequences emulate special PC keyboard keys that are not part of the
ANSI standard, such as function keys and Page Up and Page Down.
Table 5-2 lists the attention key sequences for entering special non-ANSI key
sequences from any ANSI terminal program. Included are keys such as Home,
End, Page Up, Page Down, and function and arrow keys.
NOTE: Some of the sequences described in Table 5-2 are not required with
Compaq Insight Manager or other ANSI terminal programs that support
function keys, Page Up, Page Down, Home, and End.
Table 5-2
Attention Key Support Sequences
Key
Key it is equal to on the server console
[Atn] 1-9, 0
Corresponding F1-F10
[Atn] - (minus)
F11
[Atn] =
F12
[Atn] I
↑ (up arrow)
[Atn] M
↓ (down arrow)
[Atn] Y
Insert
[Atn] B
Delete
[Atn] J
← (left arrow)
[Atn] K
→ (right arrow)
[Atn] O
Page Up
Continued
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Using Attention Key Sequences
Attention Key Support Sequences Continued
Key
Key it is equal to on the server console
[Atn] , (comma)
Page Down
[Atn] U
Home
[Atn] N
End
[Atn] [Atn]
Generates a literal Atn sequence to the server console.
For instance, if the attention key was assigned to Ctrl +
A, but an actual Ctrl + A was required as input to the
server console, the user could insert a literal Ctrl + A by
pressing this sequence twice.
Example: Pressing F10 Key
For example, if you wanted to press the F10 key on the managed server:
1.
Enter the attention key. In this example the attention key is set to its
default: Ctrl+A. Press both the Ctrl and the A keys down
simultaneously. Release both keys, making sure to release the Ctrl key
last.
2.
Enter the command to type an F10 at the server’s keyboard. This
command key is 0 (zero).
Step 1 signals IRC that a special key sequence is to follow. Pressing 0 (zero) in
step 2 generates an F10 on the managed server.
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5-5
Attention Key Compose Sequences
These sequences extend the ability to enter complex keyboard sequences
necessary in the PC environment, like Ctrl + Alt + Delete.
Table 5-3 identifies keystroke sequences used to enter complex keyboard
commands. These settings are automatically cleared after an ANSI key is
entered, or if the Sequence Clear or Sequence End attention code is entered.
Table 5-3
Attention Key Compose Sequences
Key
Function
[Atn] A
Emulates holding down the left Shift key.*
[Atn] X
Emulates holding down the left Alt key.*
[Atn] Z
Emulates holding down the left Ctrl key.*
[Atn] ‘ (single quote)
Emulates holding down the right Shift key.*
[Atn] . (period)
Emulates holding down the right Alt key (This key
corresponds to the AltGr key on the International
keyboards).*
[Atn] /
Emulates holding down the right Ctrl key.*
[Atn] Backspace
Sequence Clear - Clears all Shift, Alt, and Ctrl flags
without entering any key sequence into the server console.
It provides a means of canceling the composition of any
special-key sequence.
[Atn] Enter
Sequence End – Signals the end of the special-key
composition sequence, instructing Remote Console to
generate a key sequence based upon the Shift, Alt, and
Ctrl flags set through other attention sequences. This is
used if the special key sequence does not end with a nonattention key, like Alt-Shift.
*Other attention key signals can be used simultaneously if the appropriate attention
sequence(s) are entered before terminating the sequence.
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Using Attention Key Sequences
Example: Entering Alt + P
For example, if you needed to enter a command such as Alt + P on the
managed server:
1.
Enter the attention key. In this example the attention key is set to its
default: Ctrl+A. Press both the Ctrl and the A keys down
simultaneously. Release both keys, making sure to release the Ctrl key
last.
2.
Enter the command to press and hold the Alt key on the managed
server’s keyboard. This command key is X.
3.
Press P.
Steps 1 and 2 signal IRC that you wish to compose a key sequence on the
managed server’s keyboard with the Alt key pressed down. Pressing the P key
in step 3 completes your key sequence. IRC generates an Alt+P on the
managed server keyboard.
If you performed steps 1 and 2 above but then decided that you did not want to
continue with the intended command, you could abort the key sequence and
release the Alt key by entering the sequence clear command:
1.
Enter the attention key. In this example the attention key is set to its
default: Ctrl+A. Press both the Ctrl and the A keys down
simultaneously. Release both keys, making sure to release the Ctrl key
last.
2.
Press Backspace.
The [Atn] Backspace sequence cancels the Alt key flag that was set by
pressing [Atn] X.
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5-7
Example: Entering Ctrl + Alt + Del
The attention key compose sequences can be combined together and with other
attention key support sequences to compose virtually any key combination. For
example, if you needed to perform a Ctrl + Alt + Del key sequence on the
managed server:
1.
Enter the attention key. In this example the attention key is set to its
default: Ctrl+A. Press both the Ctrl and the A keys down
simultaneously. Release both keys, making sure to release the Ctrl key
last.
2.
Enter the command to press and hold the Ctrl key on the managed
server’s keyboard. This command key is Z.
3.
Enter another attention key to begin the sequence to add the Alt key to
list of keys that should be pressed down on the managed server’s
keyboard. Press Ctrl + A as above in step 1.
4.
Enter the command to add the Alt key to the list of keys pressed down
on the managed server’s keyboard. This command key is X.
5.
Enter another attention key to begin the Del key support sequence. Press
Ctrl + A as above in step 1.
6.
Enter the command to press the Del key on the managed server’s
keyboard. This command key is B.
Steps 1 and 2 signal IRC that you wish to compose a key sequence on the
managed server keyboard with the Ctrl key pressed down. Steps 3 and 4 signal
IRC that you additionally want to hold down the Alt key on the managed server
keyboard. Steps 5 and 6 generate a Del key on the managed server keyboard.
Since the Del key was preceded by the Ctrl and Alt compose sequences, all
three are pressed simultaneously on the server’s keyboard. The Del support
sequence, since it is not an attention compose sequence, automatically ends the
compose sequence, releasing both the Ctrl and Alt keys following the Ctrl +
Alt + Del sequence.
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5-8
Using Attention Key Sequences
More Attention Key Examples
Table 5-4 summarizes how to compose some common key sequences within
the Remote Console mode from any ANSI terminal program. The abbreviations
L-Shift, L-Ctrl, and L-Alt are used to represent Left-Shift, Left-Ctrl, and
Left-Alt respectively. Similarly, R-Shift, R-Ctrl, and R-Alt represent RightShift, Right-Ctrl, and Right-Alt, respectively.
Table 5-4
Attention Key Composition Examples
Desired Key sequence
Attention Key sequence
F10
[Atn] 0 (emulates pressing the F10 key)
Alt + F
[Atn] X F (emulates pressing both L-Alt, and F
simultaneously)
Ctrl + Alt + Del
[Atn] Z [Atn] X [Atn] B (emulates pressing L-Ctrl, LAlt, and Delete simultaneously)
Alt + L-Shift
[Atn] X [Atn] A [Atn] Enter (emulates pressing L-Alt
and L-Shift simultaneously.)
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5-9
Attention Key Template
Figure 5-1 illustrates the layout of the attention key sequences. Essentially the
attention key places the keyboard in an alternate mode, much like the “altfunction” keys on a laptop keyboard. Note the geographic placement of these
sequences as seen on an U.S. domestic keyboard layout.
Esc
Menu
Backspace
Seq Clear
Tab
Ins
Home
PgUp
Shift
Shift
Enter
Sequen End
Shift
Ctrl
Ctrl
Alt
Alt
Del
End
PgDn
Alt
Ctrl
Refresh Screen
Figure 5-1. Example: United States Keyboard with Attention Keys indicated
Changing the Attention Key
See Chapter 4 for instructions on how to change the attention key. The attention
key may be changed to any ASCII key, preferably a key that is infrequently
used.
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6-1
Chapter 6
Additional Modem Information
Integrated Remote Console (IRC) has been tested and is compatible with a wide
variety of internal and external modems. IRC requires a high-speed (14400
baud or greater) Hayes-compatible serial modem. Virtually all external RS-232
serial modems meet this requirement.
Modem Types
Internal modems must be ISA and must be controller-based. The following
sections describe many of the commercially available types of modems and
their compatibility with IRC.
Table 6-1
Modem Requirements
Internal Modem
■
■
■
■
High-Speed with error negotiation
protocol (V.FC, V.42, V.34, LAPM,
V.90)
Controller-based (16550 or
equivalent)
ISA adapter card
Jumper-able resource settings
(COM & IRQ)
External Modem
■
■
High-Speed with error
negotiation protocol (V.FC, V.42,
V.34, LAPM, V.90)
Serial (RS-232) Interface
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Additional Modem Information
External Serial Modems
IRC supports most external high-speed serial modems. Some modems, like the
Compaq Microcom 510, offer both a serial and parallel (APT) interface. Such
modems must be connected through the serial interface to operate correctly
with IRC.
External modems are cabled to the managed server using a standard straightthrough DTE to DCE style cable. A standard DB-9F to DB-25M cable can be
used and there are no specific requirements specific to IRC.
Important Tip
Most external modems offer modem state indicator lights, which can be useful
troubleshooting tools, particularly if you are configuring IRC for the first time.
If IRC is configured for the proper COM port, the TR or DTR indicator should
be illuminated shortly after the Compaq ProLiant splash screen is displayed
during power-on-self-test (POST). The AA indicator indicates that the modem
has been placed in auto-answer mode. If the modem has not been preconfigured (through switches on the modem) for auto-answer mode, this signal
should also be illuminated shortly after the TR indicator. This indicates that
IRC can communicate with the modem and the modem has correctly received
the auto-answer string configured through the Compaq System Configuration
Utility. If the managed server is running Windows NT as its primary operating
system, this indicator can also reflect the ownership of the modem in the shared
configuration. Windows NT 4.0 generally does not program the modem for
auto-answer mode. As a result, if the AA indicator is illuminated after
Windows NT has booted, IRC currently owns the modem. Similarly, if the AA
indicator is not illuminated, the modem is currently in use by the operating
system.
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Internal ISA Plug-n-Play Modems
Internal ISA Plug-n-Play modems, designed for the PC consumer industry, are
designed to be easy to install and configure. Such modems rely on the operating
system for resource configuration, eliminating the need for the user to set predetermined jumpers. The modem’s COM port and interrupt settings are
automatically configured by the operating system and can be adjusted at runtime to resolve resource conflicts when new hardware is installed. Although
these modems greatly simplify the hardware configuration process, they require
the operating system for proper operation.
IRC must be able to access the communications device, regardless of the state
or health of the server operating system. If the managed server is unable to load
the operating system, IRC is unable to access the communications device. In
addition, the operating system may readjust the modem resources at run-time.
For IRC to function correctly the modem configuration must be fixed and it
must be available regardless of the state of the managed server.
Fortunately, however, most ISA internal Plug-n-Play modems contain jumpers
that allow the modem to be configured in “legacy” mode. These jumpers ensure
that the modem can be used whether or not the operating system loads. For
proper operating with Integrated Remote Console, internal plug-n-play modems
must be jumpered for “legacy” mode, with the resources manually configured
using methods described in Chapter 2.
“Windows” Modems
Since these modems require the operating system and a proprietary driver to
function correctly, they cannot be used with IRC. “Windows” modems, offered
by some modem manufacturers, attempt to reduce the hardware complexity and
cost of internal modems by replacing the industry standard controller interface
with a proprietary one. Functions that would normally be performed on the
modem in hardware are shifted to the main CPU. These modems require a
specific driver and considerable CPU resources to function correctly. These
modems are usually a poor choice in a server environment.
“Windows” modems were not designed to be accessible from anywhere except
through the operating system. As mentioned above, IRC must be able to access
the communications device regardless of the state or health of the server
operating system.
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Additional Modem Information
PCI-based Modems
PCI-based modems have recently been introduced to the industry to replace the
need for internal modems in computers without ISA slots. Most PCI-based
modems are based on proprietary “windows” modem interfaces and are not
supported by IRC (see above on “windows” modems). If an internal modem is
desired, use a controller-based ISA modem. If an ISA modem is unable to be
accommodated, use an external serial modem.
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Modem Configuration Strings
For IRC to function correctly, the modem must be configured correctly. The
modem is configured using the primary and secondary initialization strings,
which are specified during the configuration process. For many modems, the
proper initialization strings can be found in Appendix A. This section provides
the information necessary to determine the proper initialization strings for
modems not listed in this chapter.
To function in a wide array of computing environments, modems have many
configuration options. Table 6-2 provides a summary of those settings which
are important for compatibility with IRC.
Table 6-2
Modem Configuration Setting Summary
Parameter
Configuration Value (AT Command)
Computer to Modem serial port speed
Fixed (varies)
Data Carrier Detect Operation
Normal (&C1)
Data Terminal Ready Interpretation
Normal (&D2)
Flow Control
Hardware (varies)
Error Control
Enabled (varies)
Response Codes
Only important if using modem sharing –
Configure identically to operating system
(varies)
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Additional Modem Information
Computer to Modem Serial Port Speed
Some modems have a configuration option that controls whether the DTE serial
port interface is fixed at a predetermined baud rate or changed dynamically
based upon the modem to modem connect rate. In “floating DTE” mode, the
Computer to Modem speed is automatically adjusted based upon the Modem to
Modem negotiated baud rate. For IRC to operate properly, the DTE (server to
modem) baud rate must be set to fixed. For many enhanced high-speed
modems, this is the default setting following a modem reset. This configuration
command must be appended to the IRC initialization string if your modem does
not default to the fixed setting (particularly a problem with U.S. Robotics
modems). Improper setting of the DTE speed configuration results in the
inability to obtain a login prompt from IRC after establishing a connection.
(See Appendix C, “Troubleshooting”). Refer to your modem documentation for
more details. Modem vendors differ on the specific nomenclature used to refer
to this setting. Look for terms such as “Fixed/Floating DTE,” port-rate adjust,
speed conversion, or buffered mode. Look for the &B or \J setting in your
modem’s AT command reference.
Data Carrier Detect (DCD) Operation
Most modems have a configuration option that controls the assertion of the
DCD serial port interface signal. Typically DCD can be configured so that it is
either always asserted (DCD Override) or only asserted when connected to
another modem (DCD Normal). For Integrated Remote Console to function
properly, the modem must be configured to assert DCD only when a carrier is
established with another modem. Improper setting of this configuration option
results in the inability to obtain a login prompt from Integrated Remote Console
after establishing a connection. The &C AT command controls this setting in
most modems. Since modem vendors differ with respect to the default setting
of this configuration option, appending an &C1 to the Integrated Remote
Console initialization string ensures proper DCD operation.
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6-7
Data Terminal Ready (DTR) Interpretation
Most modems have a configuration option that controls the interpretation of the
DTR serial port interface signal. For IRC to function properly, the modem must
be configured to terminate a connection whenever DTR is dropped. Improper
setting of this configuration option results in the improper termination of an
existing IRC session and may result in the inability to establish a future IRC
connection. The &D AT command controls this setting in most modems. Since
modem vendors differ with respect to the default setting of this configuration
option, appending an &D2 to Integrated Remote Console’s initialization string
insures proper DTR interpretation.
Flow Control
IRC is designed to use hardware flow control on the serial port interface. For
IRC to function properly, the modem must be set to hardware flow control for
both receive and transmit operations. Improper setting of this configuration
option could result in the loss of characters, causing the remote terminal to
display incomplete or garbled information. Modem manufacturers differ with
respect to how this configuration option is implemented and controlled. Typical
AT commands to configure flow control include &K, &H, &R, &J, &E, \G or
\Q. Refer to your modem’s AT command reference for more details.
Error Correction
Most high-speed modems, by default, automatically negotiate an error control
protocol such as v.42 (LAPM) or MNP upon establishing a connection to
another modem. For connection speeds in excess of 1200 baud, error control is
essential to insure proper communication between IRC and the management
console. If error control is not negotiated between modems, erroneous data may
result in either the inability to obtain a login prompt, garbled characters on the
terminal display, or incorrect or extra keystrokes being sent to the server. Error
control is normally negotiated, unless it is explicitly turned off on either modem
or the modems are incompatible. If you encounter any of the problems
mentioned above, try using identical modems for both the server and the
management console. Typical AT commands to configure error control include
\N, &Q, &M, &E, and S-Register settings. Refer to your modem’s AT
command reference for more details.
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6-8
Additional Modem Information
Data Compression
Most high-speed modems also try to negotiate a compression protocol such as
v.42 bis or MNP5 upon establishing a connection to another modem.
Compression settings do not effect the ability to connect to IRC. However,
negotiating such a protocol is advantageous, since it greatly accelerates
responses from the server, particularly in remote console mode. Typically,
compression is normally negotiated, unless it is explicitly turned off on either
modem or the modems are incompatible. Typical AT commands to configure
compression include &K, %C, &E, and S-Register settings. Refer to your
modem’s AT command reference for more details.
Response Codes
The way a modem responds to commands and events is also highly
configurable. Through AT command strings, the modem can be instructed to
communicate this information numerically or through verbal descriptions. For
instance, based on its configuration, the modem may return “RING” in
response to an incoming call, or the number 2. In addition, the modem can be
configured return varying levels of information in several different formats.
Since modems vary greatly in how and what they send in response to event,
IRC does not use modem response codes when communicating with the
modem. Consequently, it does not matter what response code format it chosen
or what is communicated in the response codes. IRC uses the modem control
signals to determine events such as connect and ring.
Response code format commands are important, however, if you are sharing the
modem with the operating system. In this case, IRC must have the modem
configured to respond in a way that the operating system will expect and
understand. See Appendix A for instructions in how to determine how the
operating system has configured the modem under Windows NT 4.0.
There are several different AT commands on each modem to configure
different attributes of the response codes. Typical AT commands used to
configure the response codes include, V, \V, W, X, Q, &A, and S-register
settings (particularly S95). Refer to your modem’s AT command reference for
more details.
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7-1
Chapter 7
Direct Connections
In a data-center environment, connecting a modem to each server may be
undesirable. For this reason, Integrated Remote Console (IRC) supports
configurations whereby access can be obtained through companion hardware,
such as a “buddy server” or terminal server. In a “buddy server” configuration,
two servers are directly connected to each other’s serial ports. If either server
fails, the other server can be used to gain out-of-band access to the failing one.
In a terminal server configuration, a cluster of servers can be connected to a
terminal server or terminal concentrator, allowing out-of-band access to any of
the servers through either a LAN (telnet) connection, or through a shared
modem or bank of modems.
For both configurations, identical concepts apply. The following section
entitled “Connecting Using a Terminal or Terminal Emulator” describes the
elements necessary to setup a direct-connection to IRC from a generic terminal
device. Additional information necessary for terminal server configurations is
found later in this chapter in the section entitled “Connecting to a Terminal
Server.”
Connecting Using a Terminal or
Terminal Emulator
The following section contains information necessary to connect IRC directly
to a terminal or terminal emulator. For simplicity, the terminal or terminal
emulator is referred to as the “terminal.”
For proper operation in direct connect mode mode, IRC requires the following:
1.
A null-modem cable, with the complete set of modem control signals.
2.
A terminal or terminal emulator that supports the complete set of
modem control signals, including hardware flow control, proper DTR
assertion, and DCD interpretation.
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Direct Connections
Cable Requirement
For proper communication, IRC requires a null-modem cable with a complete
set of modem control signals. The exact wiring diagram for this cable is shown
in Appendix B. Cables are occasionally labeled as “null-modem” which do not
conform to this diagram. Check with your cable vendor to ensure that the cable
meets the requirements shown in Appendix B. Cables that differ from this
specification may not function correctly.
Communication Requirements
For proper operation, both IRC and the terminal must be configured and
operate compatibly. The following communication attributes are important for
proper out-of-band access:
■
Managed Server Serial Port Configuration — For a direct-connect
configuration, one of the server’s integrated serial ports is used as the
communication device. Verify that the desired port is enabled and
configured correctly. See “Configuring an external modem or direct
connection” in Chapter 2 for more details. One suggested configuration
is using integrated serial port B configured as COM2, IRQ3.
■
IRC Configuration — Make sure you have configured IRC’s
communication device as direct connect. Also ensure that the COM port
and interrupt settings match the serial port selected above. In directconnect configurations, it is recommended that the serial port sharing
options be set to dedicated, making the selected serial port into a
dedicated out-of-band management port. Configure and note the baud
rate and communication settings, as the terminal needs to mirror these
settings to gain access.
■
Terminal Communication Settings — Configure the terminal to match
to communication settings specified for IRC. This includes the
communication baud rate, number of data bits, whether a 7-bit parity
mode is selected, and the number of stop bits. If the terminal is not
configured correctly, you can not obtain a login prompt from IRC.
■
Flow Control — Configure the terminal for hardware flow control. An
improper flow control setting could result in the loss of characters,
causing the terminal to display incomplete or garbled information,
especially during peak video activity.
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■
DTR Control — For compatibility with IRC, the terminal must assert
DTR whenever a communication session is open. IRC uses the DCD
control signal (which is driven by the terminal’s DTR output) to
determine whether a remote session is open. IRC ignores any serial port
activity whenever DCD is inactive. Consequently, if the terminal does
not assert it’s DTR output, it is impossible to establish a connection with
IRC. Conversely, the terminal must lower DTR whenever a
communication is closed. This ensures that the current user is properly
logged out and IRC will return to a passive state.
■
DCD Interpretation — IRC asserts it’s DTR serial port control signal
whenever it is prepared to accept an incoming login request. Through
the null-modem cable, this signal is wired to the terminal’s DCD input,
which is usually reflected by the terminal’s status bar as “CARRIER” or
“ONLINE.” IRC drops DTR in response to a logout or close session
request.
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7-4
Direct Connections
Connecting Using a Terminal Server
or Concentrator
A terminal server can be a perfect compliment to IRC, particularly in a datacenter environment where servers are grouped in clusters. Through one terminal
server, a remote administrator can gain access to a number of different servers
either through a shared modem or through a local area network connection.
This topology greatly decreases or eliminates the need for multiple modems
and phone lines. This topology also provides another level of security since
access can be restricted to a trusted private network or a centralized remote
access server.
LAN
Management
Console
Terminal
Server
Modem
Modem
Server 1
Server 2
Server 3
Server 4
Figure 7-1. Typical terminal server topology
Figure 7-1 shows a typical terminal server topology. In such a configuration,
the terminal server is directly connected to the integrated serial ports on a
cluster of servers. The Integrated Remote Console feature of each server is
configured for direct-connect access through the selected integrated serial port.
Out-of-band access to any connected server can be obtained by establishing a
TELNET connection through the terminal server to the appropriate port.
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Such an implementation has three requirements:
1.
You must select or obtain an appropriate cable or adapter to connect the
terminal server asynchronous serial port to the managed server DB-9F
serial port.
2.
You must properly configure the IRC feature of each server for this
environment.
3.
You must configure each port of the terminal server with the necessary
serial port settings.
Each of these requirements is described in detail in the following sections.
Obtaining the Appropriate Cable
Unfortunately, this is usually the biggest obstacle preventing proper operation
of Integrated Remote Console in this environment. To obtain the necessary
connector density, terminal servers typically route the serial ports to nonstandard connectors. Typically, the serial port connections are provided in an
RJ-45 style connector located either on the terminal server or available through
a special high-density “break-out” cable. Although the use of the RJ-45
connector is somewhat standard, the way the signals are routed to this
connector differ from manufacturer to manufacturer. Consequently, the adapter
required to connect to the DB-9F connector on the managed server differs with
each brand of terminal server. Adapters offered by the terminal server vendors
are typically constructed to connect to simple RS-232 devices and may not
contain the complete set of serial port control signals which Integrated Remote
Console requires to operate correctly. The requirements of the necessary
adapter are listed in Table 7-1. Check with your terminal server vendor to make
sure all these conditions are satisfied.
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Direct Connections
IRC requires a complete null-modem cable connection to operate correctly. For
proper connectivity, the serial port signals must be wired in a fashion identical
to the diagram shown in Appendix B. As shown in the diagram, the managed
server serial port transmit (TX or TxD) must be wired to the serial port receive
(RX or RxD) of the terminal server. Similarly, the managed server serial port
receive (RX or RxD) must be wired to the serial port transmit (TX or TxD) of
the terminal server. For proper flow-control, the request-to-send (RTS) and
clear-to-send (CTS) signals must be similarly cross-wired. The data-terminalready (DTR) of the managed server must be connected to both the data-carrierdetect (DCD) and the data-set-ready (DSR) of the terminal server. Similarly,
DTR signal of the terminal server must be connected to both DCD and DSR of
the managed server. The DTR and DCD cross-connections are extremely
important. Improper connection of these signals inhibits the ability to open a
connection to IRC. Lastly, the ground (GND) connection of both devices must
be connected together.
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Connector Example
To demonstrate the proper adapter, a serial port found on the Cisco 2509/2511
terminal server is used as an example. On this terminal server, a breakout cable
provides the serial port connectivity through individual RJ-45 style connectors.
The RJ-45 connector is defined with the following pinouts:
Table 7-1
Example: Cisco 2509/2511 RJ-45 Connector Pinout
8-Pin RJ-45
Signal
Direction with respect to
terminal server
1
CTS
Input
2
DSR/DCD
Input
3
RXD
Input
4
RXD/GND
--
5
TXD/GND
--
6
TXD
Output
7
DTR
Output
8
RTS
Output
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Direct Connections
Using the information provided above from the terminal server manufacturer
and the cable specified in Appendix B, the following adapter can be obtained.
Table 7-2
Example: Cisco 2509/2511 RJ-45 to DB-9F Adapter
Terminal Server
8-Pin RJ-45
Signal
Managed Server
9-Pin DB-9F
Signal
1
CTS
7
RTS
2
DSR/DCD
4
DTR
3
RXD
3
TXD
4
RXD/GND
5
GND
5
TXD/GND
5
GND
6
TXD
2
RXD
7
DTR
1&6
DCD & DTR
8
RTS
8
CTS
NOTE: The above table is only applicable to the Cisco 2509/2511 terminal server and is
only provided as an example of how such an adapter is to be constructed.
Configuring Integrated Remote Console
See “Configuring Integrated Remote Console” in Chapter 2 for details on how
to make the appropriate configuration settings to the managed server using the
Compaq System Configuration Utility. Ensure the following settings are
correct.
■
Configure the Managed Server Serial Port — Since the terminal
server is typically directly connected to one of the managed server’s
integrated serial ports, you must verify that the desired port is enabled
and configured correctly. See “Configuring an external modem or direct
connection” in Chapter 2 for more details. One suggested configuration
is using integrated serial port B configured as COM2, IRQ3.
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■
Integrated Remote Console Communication Device Settings — Set
the communication device to direct connect and ensure that the
communication device COM port and interrupt settings match the serial
port selected above.
■
Integrated Remote Console Sharing Options — In instances where a
terminal server is used, in-band management information is typically
available directly through a LAN connection. Consequently, the serial
port sharing option should be set to dedicated, making the selected serial
port a dedicated out-of-band management port.
■
Integrated Remote Console Communication Settings — Set the baud
rate and communication settings to match those configured on the
terminal server. A baud rate of 19200 is sufficient for most applications,
although a higher rate can be selected provided the cable and terminal
server can accommodate it. The recommended setting of data, parity,
and stop bits are 8, none, and 1 respectively. Keep in mind that these
settings must match the settings configured for the corresponding port
on the terminal server.
Configuring the Terminal Server
Typically, terminal servers are extremely adaptable and configurable. The exact
configuration mechanisms and commands differ between manufacturers. Use
the following guidelines along with your terminal server documentation to
correctly configure the terminal server to communicate with Integrated Remote
Console.
■
Communication Settings Settings — Configure each port on the
terminal server to match to communication settings specified for
Integrated Remote Console. This includes the communication baud rate,
number of data bits, whether a 7-bit parity mode is selected, and the
number of stop bits. If the receive and transmit baud rates are each
configurable, make sure they are both set to match maximum baud rate
settings specified in IRC. Note that the terminal server’s default
configuration almost always needs to be modified. If the communication
settings are not configured correctly, you will not be able to obtain a
login prompt from Integrated Remote Console.
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Direct Connections
■
Flow Control — Configure each port on the terminal server for
hardware flow control. If the receive and transmit functions are each
configurable, make sure they are both set for hardware flow control. An
improper flow control setting could result in the loss of characters,
causing the remote terminal to display incomplete or garbled
information.
■
DTR Control — This setting is crucial to the operation of the Integrated
Remote Console. The terminal server must be programmed to assert
DTR whenever a communication (TELNET) session is open on the
selected serial port. Integrated Remote Console uses the DCD control
signal (which is driven by the terminal server’s DTR output) to
determine whether a remote session is open. Integrated Remote Console
ignores any serial port activity whenever DCD is inactive.
Consequently, if the terminal server does not assert it’s DTR output, it is
impossible to establish a connection with Integrated Remote Console.
Conversely, if the terminal server always asserts DTR, IRC always
thinks a remote session is being requested, which could result in a slight
performance penalty on the managed server. In addition, IRC does not
automatically log out a user whenever the communication port is closed.
For proper operation of IRC, the DTR output of the terminal server must
be asserted whenever a communication session is opened, and removed
whenever a communication session is closed.
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Chapter 8
Modem Sharing
The modem sharing feature of Integrated Remote Console (IRC) allows you to
use the same modem for hardware and operating system-based management. If
asynchronous management is installed on the managed server, the management
console can remotely monitor and receive traps from the managed server
through an operating system-based dial-up connection on the shared modem.
This same connection can be used to obtain graphical remote control through
applications such as pcANYWHERE or Compaq Carbon Copy. In the event
that the server goes off-line and these utilities are unavailable, access to the
server can still be obtained through IRC.
The modem sharing feature does not require any additional software or drivers
to be installed on the managed server. In this mode, IRC owns the configured
modem and performs the function of modem arbitrator. If IRC detects the
operating system attempting to access the modem or if an incoming call is
identified as destined for the operating system, the modem is given to the
operating system, allowing the connection to complete normally. Once IRC has
relinquished the modem, it monitors the modem usage, reclaiming the modem
once the call completes and 60 seconds of inactivity is detected.
For incoming calls, it is essential that IRC configure the modem in a way that
the operating system will expect and understand. Consequently, the
communication settings of IRC must be identical to the communication settings
used by the operating system. In addition, the modem must likewise be
configured identically. This is accomplished through the primary and secondary
initialization string configuration settings of IRC.
To aid in the proper selection of these strings, Appendix A contains a table of
commonly used modems and the suggested initialization strings. It is strongly
suggested that you use one of these modems along with the recommended
initialization strings. If your modem is not listed in this table, see Chapter 6 in
conjunction with your modem’s AT command reference to determine the
proper string. Advanced Windows NT 4.0 users can use the procedure found
later in this chapter to extract the operating system initialization strings.
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Modem Sharing
Asynchronous Management
Asynchronous Management is a Compaq software option that allows you to
monitor server health and receive traps through an asynchronous (modem)
connection. This feature is essential to properly manage remote servers that
may not be connected through a local area network. For servers with a LAN
connection, this feature provides an important backup communication path in
instances when the network is down.
Asynchronous Management runs on top of the operating system’s dial-up
networking capability. To gain access to the managed server, a point-to-point
protocol (PPP) connection is established, providing the necessary virtual
networking transport to carry the full suite of SNMP management data.
If modem sharing is enabled, this same modem can be used to invoke IRC. IRC
automatically detects incoming and outgoing PPP connections, forwarding the
call on to the operating system. If, however, the connection is originating from
an ANSI or telnet client, the call is accepted by the hardware-based, out-ofband management device: IRC.
To implement this configuration, configure asynchronous management as you
would on a server without IRC. Once the operating system-based management
utilities are configured and tested, enable IRC. If configured correctly, IRC
should act as a communication “wrapper,” transparently allowing the modem to
be used by both applications.
Since a wide body of documentation already exists on installing dial-up
networking and asynchronous management, that information is not repeated
here. Consult the instructions supplied with your operating system to install
dial-up networking. See the Compaq Insight Manager User’s Guide for
detailed instructions on setting up asynchronous management. IRC does not
change the way these utilities are installed or configured.
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A general outline of the configuration process is shown below.
1.
Disable IRC — It is highly recommended that IRC be disabled before
the operating system based utilities are installed. This step is not
required, but can eliminate communication problems introduced by an
incorrectly configured IRC.
2.
Install and Configure Dial-up Networking — Install PPP
communication software on the managed server. See the Compaq
Insight Manager User’s guide for detailed information on how to
configure dial-up networking to accommodate asynchronous
management.
3.
Install and Configure Asynchronous Management — Install
asynchronous management using the SmartStart Management CD
supplied with your server. See the Compaq Insight Manager User’s
Guide for detailed information on configuring asynchronous
management.
4.
Test Dial-up Networking and Asynchronous Management — Once
configured, test the configuration by dialing into the managed server. If
dial-up networking is installed correctly, you should be able to establish
a PPP connection with the server. Once connected, you should be able to
browse management data if asynchronous management is configured
correctly. Test dial-out asynchronous traps using the test facility
provided by the asynchronous management software.
5.
Configure and Enable IRC — Once proper operation with the
operating system has been verified, enable IRC paying close attention to
the communication port and modem initialization settings.
6.
Test OS Dial-in Capability — Once enabled, you should be able to
access either IRC or operating system-based management. Test the
configuration by attempting to establish a dial-up networking
connection. Wait several minutes after booting the operating system to
insure that IRC has had a chance to regain ownership of the modem after
the operating system initialization process. If the call does not connect
properly, review your IRC configuration settings. See Appendix C for
additional troubleshooting information. Test the connection several
times, allowing at least 60 seconds to transpire between connections.
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Modem Sharing
7.
Test OS Dial-out Capability —Test the operating system’s ability to
dial out by sending a test trap using the “test” feature of the
asynchronous communication software. Again, test the connection
several times, allowing at least 60 seconds to transpire between
connections.
8.
Test IRC Dial-in Capability — Finally, test the ability to invoke the
IRC login prompt by dialing into the server using an ANSI or telnet
based client application. Once connected, you should be able to invoke
the IRC login prompt by entering three carriage returns. If this attempt
fails, wait at least 60 seconds and try again. See Appendix C for
troubleshooting information if repeated attempts fail.
Graphical Remote Control
The modem sharing feature of IRC can also be used to obtain graphical remote
control through OS-based applications such as pcANYWHERE or Compaq
Carbon Copy. Typically, these programs support several communication
methods, including several network transports as well as direct modem access.
The recommended configuration is to use these programs in conjunction with
dial-up networking. In this configuration, the same PPP connection can support
both asynchronous management and graphical remote control.
To implement graphical remote control in this way, you must install both dialup networking and the graphical remote control application. If you have already
successfully installed asynchronous management or dial-up networking, you
simply need to install the graphical remote control application.
A general outline of the configuration process is shown below.
1.
Disable IRC — It is highly recommended that IRC be disabled before
the operating system based utilities are installed. This step is not
required, but can eliminate communication problems introduced by an
incorrectly configured IRC.
2.
Install and Configure Dial-up Networking — Install PPP
communication software on the managed server. See the documentation
supplied with your network operating system for detailed information on
how to configure dial-up networking.
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3.
Install and Configure Graphical Remote Control Application —
Install graphical remote control application using directions supplied by
the software vendor. Configure the host for network TCP/IP access. The
client application should also be configured for TCP/IP access,
specifying the managed server’s PPP IP address or server name.
4.
Test Dial-up Networking and Graphical Remote Control — Once
configured, test the configuration by dialing into managed server. If
dial-up networking is installed correctly, you should be able to establish
a PPP connection with the server. Once connected, you should be able to
open a graphics remote control session using the TCP/IP transport.
5.
Configure and Enable IRC — Once proper operation with the
operating system has been verified, enable IRC paying close attention to
the communication port and modem initialization settings.
6.
Test OS Dial-in Capability — Once enabled, you should be able to
access either IRC or operating system-based management. Test the
configuration by attempting to establish a dial-up networking
connection. Wait several minutes after booting the operating system to
insure that IRC has had a chance to regain ownership of the modem after
the operating system initialization process. If the call does not connect
properly, review your IRC configuration settings. See Appendix C for
additional troubleshooting information. Test the connection several
times, allowing at least 60 seconds to transpire between connections.
7.
Test IRC Dial-in Capability — Finally, test the ability to invoke the
IRC login prompt by dialing into the server using an ANSI or telnet
based client application. Once connected, you should be able to invoke
the IRC login prompt by entering three carriage returns. If this attempt
fails, wait at least 60 seconds and try again. See Appendix C for
troubleshooting information if repeated attempts fail.
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Modem Sharing
Additional Information
Determining Proper Initialization Strings in a
Windows NT 4.0 RAS Environment
Each modem supported under Windows NT is uniquely described by an entry
in a modem information file (*.INF). This file, which is either provided by
Microsoft as part of the Windows NT installation or provided by the modem
vendor, contains specific configuration information necessary for Windows NT
applications to fully utilize the modem. Consequently, a given application may
send out completely different and mutually incompatible initialization strings,
depending upon which modem is configured.
Since modems can be configured to operate in any number of modes, it is
important to ensure that IRC has programmed the modem in such as way that a
forwarded call makes sense to the operating system. For example, Windows NT
may expect numeric response codes from modem A, and verbose response
codes from modem B.
Determining exactly how Windows NT has configured the modem is difficult,
since the exact modem initialization strings are abstracted by the operating
system.
Configuration strings which allow the modem to be used both by IRC and
Windows Remote Access Server (RAS) for Windows NT 4.0 are shown in
Table A-2 in Appendix A. If your modem does not appear in this table, the
following procedure can be used to determine the proper initialization strings
for your modem.
NOTE: This is an advanced procedure that assumes familiarity with Windows
NT and Hayes AT command strings. Obtain a complete listing of the AT
command reference for your modem from your modem manufacturer before
proceeding. This procedure assumes that Windows Remote Access Server
(RAS) is configured, installed, working, and completely tested with IRC
disabled.
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Temporarily disable IRC
If IRC is enabled, temporarily disable IRC using the Compaq System
Configuration Utility. This prevents incorrect settings from interfering with
RAS.
Turn on Modem Log File
1.
From the Windows Control Panel, double-click on Modems.
2.
From the Modem Properties dialog box, select the modem that you want
to share with IRC and click Properties.
3.
Click the Connection tab control. Click Advanced to display the
Advanced Connection Settings dialog box.
4.
Check the Record a log file option in the Advanced Connection Settings
dialog box.
5.
Click OK to dismiss the Advanced Connection Settings and Modem
Properties dialog boxes.
6.
Click Close to finish modem configuration.
7.
Shutdown and Restart Windows NT to allow this new configuration
setting to take effect.
View Modem Log File
After restarting Windows NT, a log file is recorded containing all activity to the
modem. When the RAS service starts, the modem initialization commands are
recorded in this log file.
1.
From Windows Explorer, navigate to the directory where Windows NT
is installed.
2.
Locate the modem log file. This file is named ModemLog_<name of
modem>. One way to quickly locate this file is by clicking the Modified
column tab to sort the directory entries by their modified timestamp. The
modem log should be one of the most recently modified entries.
3.
Double-click the log file to view the contents in Windows notepad.
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Modem Sharing
8-8
Locate the Modem Initialization Strings
The modem log file should contain information similar to the following:
Line #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
01-19-1998 16:45:03.526
Serial in use.
01-19-1998 16:45:03.526
Fax Modem Serial
01-19-1998 16:45:03.526
01-19-1998 16:45:03.526
01-19-1998 16:45:03.526
01-19-1998 16:45:03.526
01-19-1998 16:45:03.536
01-19-1998 16:45:03.536
01-19-1998 16:45:03.866
01-19-1998 16:45:03.866
01-19-1998 16:45:03.866
01-19-1998 16:45:03.866
01-19-1998 16:45:03.866
01-19-1998 16:45:03.866
01-19-1998 16:45:03.866
01-19-1998 16:45:03.866
01-19-1998 16:45:03.866
01-19-1998 16:45:03.866
01-19-1998 16:45:03.866
01-19-1998 16:45:03.866
01-19-1998 16:45:03.876
01-19-1998 16:45:03.876
01-19-1998 16:45:03.876
01-19-1998 16:45:03.876
- Compaq Microcom 510 56K Ext Fax Modem
- Modem type: Compaq Microcom 510 56K Ext
-
Modem inf path: cpq510.inf
Modem inf section: Modem1
115200,N,8,1
115200,N,8,1
Initializing modem.
Send: AT<cr>
Recv: AT<cr>
Recv: 0<cr>
Interpreted response: OK
Send: AT &F<cr>
Recv: AT &F<cr>
Recv: <cr><lf>OK<cr><lf>
Interpreted response: OK
Send: AT E0 %U2 V0 &D2 &C1 S0=0<cr>
Recv: AT E0 %U2 V0 &D2 &C1 S0=0<cr>
Recv: 0<cr>
Interpreted response: OK
Send: ATS7=60\T0L1M1\N3%C3\Q3B0X4<cr>
Recv: 0<cr>
Interpreted response: OK
Waiting for a call.
Send: ATS0=0<cr>
Line 5 shows the baud rate, parity, data bits and stop bits. Lines 12, 16, and 20
show the operating system initialization strings.
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8-9
The initialization strings invoked by Remote Access Server are located between
the “Initializing modem” and “Waiting for a call” lines in the modem log file.
Typically, there are three or four AT command sequences listed. The last
command sequence is usually constructed using the options you have selected
in the Modem Properties dialog box. This string usually contains entries for
compression, error control, timeout settings, and so on. The strings proceeding
the options init string are common to all configurations of this modem and
contain reset, mode, and response code configuration. AT commands which are
particularly important to proper modem sharing operation are those which
specify the response format of the modem. These strings define how the
modem reports negotiated speed, error control, and compression information
upon establishing a carrier and whether this information is to be reported in
numeric (V0) or verbose (V1) mode. Using your modem’s AT command
reference, determine which commands strings differ from the modems default
settings and construct new initialization strings for IRC using these settings. If
you are unsure of which settings may be important, try using the strings
verbatim. In this example, the IRC primary initialization string could be set to
“AT &F E0 %U2 V0 &D2 &C1 S0=0” and secondary initialization string to
“ATS7=60\T0L1M1\N3%C3\Q3B0X4.”
Re-enable IRC with Proper Initialization
Strings
Re-enable IRC using the COM port and initialization string settings determined
from the modem log file.
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A-1
Appendix A
Suggested Modem Settings
The following tables provide suggested settings for when a modem is dedicated
or shared in non-Windows-NT environments, and when the modem is shared in
a Windows NT 4.0 environment.
NOTE: Some of the initialization string entries in Tables A-1 and A-2 may be
too long to be completely displayed on one line and consequently wrap to
another line. When entering the string into IRC’s modem configuration,
combine wrapped lines into one string.
Pay special attention to the numbers 0 and 1 to distinguish them from the
letters O and I. The letter “O” does not appear in any of the modem strings.
Suggested Settings When Modem is
Dedicated or Shared in nonWindows NT Environments
NOTE:
The Port Setting for all modems is 8-N-1.
Table A-1
Dedicated or Shared in non-Windows NT Environment Modem Settings
Modem Selected
Baud
Init String #1
Init String #2
Cardinal Connecta 56K External
Fax Modem
115200
AT&F1Q0V1&C1&D2
AT&M4&K1&H1&R2&I0B0X4
Compaq SpeedPaq 144 Data Fax
Modem
19200
AT&FV1&C1&D2W1X4S95=47
AT\N3%C1S101=35\Q3B0N1X4
Compaq Microcom 415 External
Fax Modem
57600
AT&FQ0V1&C1&D2S95=47
AT\N3%C3&K3B0N1X4
Continued
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A-2 Suggested Modem Settings
Dedicated or Shared in non-NT Environment Modem Settings Continued
Modem Selected
Baud
Init String #1
Init String #2
Compaq Microcom 510 56K Ext
Fax Modem
57600
AT&F%U2V1&D2&C1
AT\N3%C3\Q3B0X4
Compaq Netelligent 56K ISA Fax
Modem
57600
AT&FV1&C1&D295=47
AT\N3%C3&K3X4
Diamond SupraExpress 56e
115200
AT&F2&C1&D2V1Q0W2
ATL&Q5\N3%C3&K3BN1X4
Hayes Accura 144 Data Fax
Modem
11900
AT&FV1W1&C1&D2S95=47
AT&Q5S36=7S48=7S46=138&K3
Hayes Accura 366 Fax + Voice
115200
AT&FV1&C1&D2S95=47
AT&Q5S46=138&K3B0N1X4
Hayes Accura 56k External Fax
Modem 4703
115200
AT&F&C1&D2V1\V1
AT\N3%C1&K3B0B15X4
Hayes Accura 56k External Fax
Modem 5674
115200
AT&FV1&C1&D2S95=47
AT&Q5S46=138&K3B0N1X4
Motorola Lifestyle 28.8
External
57600
AT&F&D2&C1V1\V3S95=47S90=249
AT\N7%C1\Q3B0N1X4
Motorola ModemSURFER
External 28.8
57600
AT&F&C1&D2\V1V1W2
AT\N3%C1\Q3B%G1X4
Multi-Tech MT2834BA
57600
AT&FX4S25=20
AT&E1&E15&E4X4
Multi-Tech MT5634ZDX
115200
AT&F&C1&D2V1\V1
AT\N3%C1&K3B0B15N1X4
USR Sportster 14400 Fax
19200
AT&FV1&A3&B1&D2&S0
AT&M4&K1&H1&R2&I0B0X4
USR Sportster 28800 Internal
57600
AT&F1V1&C1&D2Q0&B1&A3
AT&M4&K1&H1&R2&I0B0X4
USR Sporster 28800-33600
External
57600
AT&F1V1&C1&D2Q0&B1&A3
AT&M4&K1&H1&R2&I0B0X4
USR Sportster 56000 External
FAX Modem
57600
AT&F1Q0V1&C1&D2
AT&M4&K1&H1&R2&I0B0X4
USR Courier V.Everything/V.34
57600
AT&F1&B1&C1&D2Q0V1&A3
AT&M4&K1&H1&R2&I0B0X4
Zoom VFX14.4V
19200
AT&FV1Q0W1&C1&D2S95=47
AT&Q5S36=7S48=7\N3
Zoom Dualmode FaxModem
56Kx
115200
AT&FV1&C1&D2W1S95=47
AT\N3%C3&K3B0X4
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A-3
Suggested Settings When Modem is
Shared in Windows NT 4.0
The following table contains the suggested configuration settings for Integrated
Remote Console when the modem usage is set to shared. These settings are
dependent upon how the operating system is configured and assume that the
modem was installed with the default settings. It is also assumes that the correct
INF file is used when the modem is installed under Windows NT. Modems
which require an INF file other than the set shipped standard with the operating
system are noted.
NOTE:
The Port Setting for all modems is 8-N-1.
Table A-2
Shared in Windows NT 4.0 Environment Modem Settings
Modem Selected
Baud
Init String #1
Init String #2
Cardinal Connecta 56K
1
External Fax Modem
115200
AT&F1E0Q0V1&C1&D2
ATS7=60S19=0M1&M4&K1&H1&R2&I0B0X4
Compaq SpeedPaq 144 Data
Fax Modem
19200
AT&FE0V1&C1&D2W1X4S95=47
ATS7=60S30=0L0M1\N3%C1S101=35\Q3B0
N1X4
Compaq Microcom 415
1
External Fax Modem
57600
AT&FE0Q0V1&C1&D2S95=47
ATS7=60S30=0L0M1\N3%C3&K3B0N1X4
Compaq Microcom 510 56K
1
Ext Fax Modem
57600
AT&FE0%U2V0&D2&C1
ATS7=60\T0L1M1\N3%C3\Q3B0X4
Compaq Netelligent 56K ISA
1
Fax Modem
57600
AT&FE0V1&C1&D2S95=47
ATS7=60S30=0L1M1\N3%C3&K3B+MS=,1,,,,
X4
115200
AT&F2E0&C1&D2V1Q0W2
ATS7=60S30=0LM1&Q5\N3%C3&K3BN1X4
11900
AT&FE0V0W1&C1&D2S95=47
ATS7=60S30=0L0M1&Q5S36=7S48=7S46=1
38&K3
Diamond SupraExpress 56e
Hayes Accura 144 Data Fax
Modem
1
Continued
1
Requires INF file from modem manufacturer to complete modem installation in Windows NT. (Appropriate
INF file not shipped with Windows NT.)
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A-4 Suggested Modem Settings
Shared in NT 4.0 Environment Modem Settings Continued
Modem Selected
Baud
Init String #1
Init String #2
1
Hayes Accura 366 Fax + Voice
115200
AT&FE0V1&C1&D2S95=47
ATS7=60S30=0L0M1&Q5S46=138&K3B0
N1X4
Hayes Accura 56k External Fax
1
Modem 4703
115200
AT&FE0&C1&D2V1\V1
ATS7=60S30=0L0M1\N3%C1&K3B0B15X4
Hayes Accura 56k External Fax
1
Modem 5674
115200
AT&FE0V1&C1&D2S95=47
ATS7=60S30=0L1M1&Q5S46=138&K3B0
N1X4
Motorola Lifestyle 28.8
External
57600
AT&F&D2&C1E0V1\V3S95=47S90=249
ATS7=60\T0L0M1\N7%C1\Q3B0N1X4
Motorola ModemSURFER
External 28.8
57600
AT&FE0&C1&D2\V1V0W2
ATS7=60S30=0L0M1\N3%C1\Q3B%G1X4
Multi-Tech MT2834BA
1
External
57600
AT&FE0X4S25=20
ATS7=60S30=0M1&E1&E15&E4X4
Multi-Tech MT5634ZDX
1
External
115200
AT&FE0&C1&D2V1\V1
ATS7=60L0M1\N3%C1&K3B0B15N1X4
USR Sportster 14400 Fax
19200
AT&FE0V1&A3&B1&D2&S0
ATS7=60S19=0L0M1&M4&K1&H1&R2&I0
B0X4
USR Sportster 28800 Internal
57600
AT&F1E0V1&C1&D2Q0&B1&A3
ATS7=60S19=0L0M1&M4&K1&H1&R2&I0
B0X4
USR Sporster 28800-33600
External
57600
AT&F1E0V1&C1&D2Q0&B1&A3
ATS7=60S19=0L0M1&M4&K1&H1&R2&I0
B0X4
USR Sportster 56000 External
1
FAX Modem
57600
AT&F1E0Q0V1&C1&D2
ATS7=60S19=0M1&M4&K1&H1&R2&I0B0
X4
USR Courier V.Everything/V.34
57600
AT&F1&B1&C1&D2E0Q0V1&A3
ATS7=60S19=0L0M1&M4&K1&H1&R2&I0
B0X4
Zoom VFX14.4V
19200
AT&FE0V0Q0W1&C1&D2S95=47
ATS7=60S30=0L1M1&Q5S36=7S48=7\N3
Zoom Dualmode FaxModem
1
56Kx
115200
AT&FE0V1&C1&D2W1S95=47
ATS7=60S30=0L0M1\N3%C3&K3B0X4
1
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B-1
Appendix B
Null-Modem Cable Description
For proper communication, Integrated Remote Console requires a null-modem
cable with a complete set of modem control signals. The exact wiring diagram
for this cable is shown in below. Cables are occasionally labeled as “nullmodem” which do not conform to this diagram. Check with your cable vendor
to insure that the cable meets the requirements shown below. Cables that differ
from this specification may not function correctly.
Terminal or PC
DCD 1
RX 2
TX 3
DTR 4
GND 5
DSR 6
RTS 7
CTS 8
RI 9
Male
Female
1
2
3
4
5
6
7
8
9
Modem
DCD
RX
TX
DTR
GND
DSR
RTS
CTS
RI
Female
Male
Figure B-1. Null-modem cable requirements
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C-1
Appendix C
Troubleshooting
Table C-1
Error Table of Contents
Error
Page #
Post Errors
C-2
Server displays “172-2 IRC Configuration Invalid” message during POST
Connection Problems
C-2
C-3
Connection problems using a modem in dedicated mode
C-3
IRC does not answer the phone in dedicated mode
C-3
Cannot obtain a login prompt in dedicated mode
C-4
Connection problems using a modem in shared mode
C-6
Managed Server does not answer the phone in shared mode
C-6
Cannot obtain a login prompt in shared mode
C-7
Cannot dial into operating system-based management in shared mode
C-9
Connection problems using a direct-connection
C-10
Cannot obtain a login prompt using a direct-connection
Problems while using IRC
C-10
C-11
Screen temporarily pauses during menus or remote console text
C-11
Terminal doesn’t scroll correctly in Remote Console Mode
C-11
Terminal loses characters or doesn’t paint correctly in Remote Console
Mode
C-12
“View Reboot Sequence” is grayed out
C-13
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C-2 Troubleshooting
POST Errors
Server displays “172-2 IRC Configuration
Invalid” message during POST
Explanation: Before initializing, IRC does a quick check of the configured
communications device before using it. If the configuration settings do not
match a valid COM port, you receive the above message followed by either
“COM Port Invalid,” “Incorrect IRQ,” or “PCI COM Port.”
Solution: Return to the Compaq System Configuration Utility and check the
following:
■
If you are using a non plug-n-play internal ISA modem, make sure that
you have manually inserted a configuration file as described in the
“Configuring a non “plug-n-play” ISA Modem” in Chapter 2.
■
If you are using an integrated serial port for connection to an external
modem, terminal, or terminal server, make sure that the integrated serial
port is configured for an edge triggered interrupt. See “Configuring an
External Modem or Direct Connection” in Chapter 2 for more details.
■
Make sure the COM port and interrupt settings of Integrated Remote
Console exactly match the hardware jumper settings on the internal
modem, or integrated serial port settings if connecting to an external
device.
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C-3
Connection Problems
Due to the complexity and diversity of communications hardware, you may
experience problems reliably connecting to IRC. A majority of these problems
are due to improper configuration settings and can usually be remedied quickly
by correcting the configuration error. The following section guides you through
some possible configuration errors and their remedies.
This section is divided into three categories:
■
Connection problems using a modem in dedicated mode
■
Connection problems using a modem in shared mode
■
Connection problems using a direct-connection
Refer to the appropriate section depending upon your hardware configuration.
Connection problems using a modem in
dedicated mode
Integrated Remote Console does not
answer the phone in dedicated mode
The management console attempts to establish a connection with the managed
server, but the phone is never answered.
Explanation: IRC cannot correctly place the modem in auto-answer mode.
Solution: This is most likely the result of a configuration or cabling error.
Review the configuration, specifically:
■
If you are using an external modem, make sure that the modem is
powered on and connected properly with the correct cable. The cable
must be a straight-through cable with full modem control signal support.
If the modem has configuration switches, make sure they are set to
factory defaults.
■
Make sure IRC is enabled and at least one user is defined in the user
database
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C-4 Troubleshooting
■
Make sure the COM port and interrupt settings of IRC exactly match the
hardware jumper settings on the internal modem, or integrated serial
port settings if connecting to an external device.
■
Make sure that the value for Maximum Baud Rate is compatible with
your modem. This setting should normally be 19200 for 14.4k modems,
38400 for 28.8k modems, and 57600 or 115200 for 33.6k, and 56k
modems.
■
Make sure IRC is configured for either an Internal Modem or External
Modem.
■
Make sure that a valid Answer String is configured. This should be
ATS0=1 unless your modem requires a different string.
Cannot obtain a login prompt in
dedicated mode
When dialing into the managed server, the phone is answered and the modems
complete negotiation, but a login prompt does not appear on the management
console after three carriage returns are entered.
Explanation: IRC uses three carriage returns to verify a stable connection and
to positively identify the call is for IRC. If this sequence is not correctly
received by IRC, you do not receive a login prompt.
Solution: A number of different conditions can inhibit the correct reception of
the carriage return sequence. In many instances, the problem may actually be
caused by the management console and has nothing to do with how Integrated
Remote Console is configured on the managed server. Possible solutions are
listed below.
■
Insure that you are sending three carriage returns (Enter key) after a
connection had been established with IRC.
■
Try using the same type and brand of modem in both the managed
server and the management console. Differences in modem negotiation
protocols, particularly if the modems are different speeds (33.6k vs.
14.4), may produce spurious characters before and after the modems
have established a connection which can interrupt the carriage return
sequence.
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C-5
■
If you are using Compaq Insight Manager as the terminal application
and have either a Compaq SpeedPaq 33.6 or U.S. Robotics modem
installed in the management console, change the “initialize” string under
Insight Manager’s COM port setup from “AT&F&C1&D2E0S0=0” to
“AT&F1&C1&D2&B1E0S0=0”. This selects the hardware-flow control
template and also specifies a fixed DTE baud rate.
■
If you have either a Compaq SpeedPaq 33.6 or U.S. Robotics modem in
the managed server, make sure that &B1 is included in either the
primary or secondary initialization string. If this type of modem is used
in the management console, make sure that the initialization string used
by your communications package includes &B1. See chapter 2 for
information on correctly configuring the management console.
■
Double check the primary and secondary modem initialization strings
with the requirements specified in Chapter 2. Check Appendix A for the
appropriation initialization strings for your modem.
■
If you are using HyperTerminal to establish the connection, make sure
that your IRC firmware is 1.41 or greater. Obtain the latest system ROM
upgrade for your server to upgrade the Integrated Remote Console
firmware.
■
Try the connection again following a cold power-cycle of the managed
server. If problem only occurs after the server is warm-booted, obtain
the latest system ROM upgrade for your server. IRC firmware versions
1.51 and greater fix a problem where IRC is unavailable following a
warm boot.
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C-6 Troubleshooting
Connection problems using a modem in
shared mode
If you are unable to login to the IRC in shared mode, it is strongly
recommended that you first troubleshoot the problem with modem sharing
options set to dedicated. Once proper operation has been verified, return to
shared mode and proceed in this section if the problem still exists.
If you are able to login to IRC, but are either unable or not consistently able to
connect through Integrated Remote Console to operating system-based
management, it is strongly recommended that you troubleshoot the problem by
temporarily disabling IRC. Once proper operation of the modem has been
verified in the operating system with Integrated Remote Console disabled, reenable Integrated Remote Console and proceed in this section if the problem
still exists.
This section assumes that there are no connection problems with IRC when the
modem is configured as dedicated, and there are no connection problems to
operating system-based management when Integrated Remote Console is
disabled.
Managed Server does not answer the
phone in shared mode
The management console attempts to establish a connection with IRC, but the
phone is not answered.
Explanation: Operating system has taken ownership of the modem and
disabled auto-answer mode.
Solution: Check the following:
■
Make sure that the operating system is not currently using the modem
for another connection.
■
The operating system may have recently accessed the modem. IRC will
regain ownership of the modem if no activity is detected for 60 seconds.
Wait 60 seconds and try again.
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C-7
■
If the modem is not configured correctly in the operating system, the
operating system may fail to communicate with the modem and
periodically retry this operation. These periodic attempts will gain
ownership of the modem from IRC making it unavailable for login.
Check for proper operation of the modem by temporarily disabling IRC.
When proper operation with the operating system has been verified, reenable IRC.
Cannot obtain a login prompt in shared
mode
When dialing into the managed server, the phone is answered and the modems
complete negotiation, but a login prompt does not appear on the management
console after three carriage returns are entered.
Explanation: Three carriage returns are used to positively identify that an
incoming call is intended for IRC. If this sequence is not correctly received by
IRC or if IRC did not own the modem at the time the call was received, you do
not receive a login prompt.
Solution: Assuming that the login prompt can reliably be obtained when the
modem is in dedicated mode, the following are possible solutions:
■
Insure that you are sending three carriage returns (Enter key) within 10
seconds after a connection had been established with IRC. If any other
character is received, or the carriage returns are received after the
timeout period, the call is incorrectly forwarded to the operating system.
■
The modems on the managed server and the management console may
be incompatible – even if the modems seem to work properly in
dedicated mode. If the modems do not establish a consistently clean
connection, spurious and/or erroneous characters received after the data
carrier detect (DCD) signal interfere with the carriage return sequence,
incorrectly forwarding the incoming call to the operating system. This is
a problem particularly if the modems are from different manufacturers
or of different speed classes. Try using the same type and brand of
modem in both the managed server and the management console.
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C-8 Troubleshooting
■
If you are using a Compaq SpeedPaq 56K or Rockwell-based 56k-flex
modem in the managed server, make sure that you have upgraded the
modem firmware to the latest version offered by the modem
manufacturer. Early 56kflex firmware versions (before 1.12) incorrectly
generate the data carrier detect signal (DCD) while the modem is
reporting the connect string. This interferes with the reception of the
carriage return sequence necessary to invoke the login prompt.
■
The operating system may have recently accessed the modem.
Integrated Remote Console regains ownership of the modem if no
activity is detected for 60 seconds. Wait 60 seconds and try again.
■
If the modem is not configured correctly in the operating system, the
operating system may fail to communicate with the modem and
periodically retry this operation. These periodic attempts gain ownership
of the modem from Integrated Remote Console making it unavailable
for login. Check for proper operation of the modem by temporarily
disabling Integrated Remote Console. When proper operation with the
operating system has been verified, re-enable Integrated Remote
Console.
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C-9
Cannot dial into operating system-based
management in shared mode
You can connect to IRC, but attempts to dial into the server’s operating system
fail.
Explanation: If an incoming call is not positively identified as destined for
Integrated Remote Console, the call is forwarded to the operating system.
Integrated Remote Console uses its configured initialization strings to reset the
modem after it regains ownership. If these initialization strings are not
compatible with the initialization strings used by the operating system, the
modem may not return data in the format which the operating system expects.
This is typically a problem with the response code format. Windows NT, for
example, configures many modems (but not all) for numeric response codes.
(V0). If the configured initialization string in IRC does not specifically contain
the command to configure the modem for numeric responses, the modem
returns to its default state which is usually verbose responses. As a result, the
operating system may be returned a verbose connect string like:
“CONNECT 38400/V34/LAPM/V42BIS/33600:TX/33600:RX”
when it is expecting a numeric code like “17.” For incoming calls to be
processed correctly, the modem must be configured identically by both the
operating system and IRC.
Solution: Reconfigure IRC’s communication settings to more accurately match
those of the operating system.
■
Make sure that IRC’s primary and secondary initialization strings are
compatible with how the modem is used by the operating system. See
Chapter 6 for more information on modems and Appendix A for
suggested initialization strings.
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C-10 Troubleshooting
Connection problems using a directconnection
Cannot obtain a login prompt using a
direct-connection
After opening a direct serial connection to IRC, a login prompt does not appear
on the management console after three carriage returns are entered.
Explanation: In direct connect mode, IRC waits for three carriage returns to
invoke the login prompt after the data carrier detect (DCD) signal is driven
active by the terminal or terminal server. Failure to obtain a login prompt either
means that the carriage returns are not being received correctly by IRC, or the
data carrier detect (DCD) signal is inactive.
Solution: Check the following:
■
Make sure you are using the appropriate null-modem cable as described
in Appendix B. Unfortunately, many cables are labeled as “nullmodem” but do not contain the full complement of necessary control
signals. IRC requires a full null-modem cable as shown in Appendix B
to operate correctly.
■
Make sure that the communication settings match between the terminal
or terminal server and IRC. These include baud rate, data bits, stop bits
and parity settings.
■
Make sure that the terminal or terminal server is configured for
hardware flow control.
■
Make sure that the terminal or terminal server is configured to assert
DTR when a connection is opened and de-assert DTR when a
connection is closed.
■
If you are using HyperTerminal to establish the connection, make sure
that your IRC firmware is 1.41 or greater. Obtain the latest system ROM
upgrade for your server to upgrade the IRC firmware.
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C-11
■
Try the connection again following a cold power-cycle of the managed
server. If the problem only occurs after the server is warm-booted,
obtain the latest system ROM upgrade for your server. Integrated
Remote Console firmware versions 1.51 and greater fix a problem where
IRC is unavailable following a warm boot.
Problems while using IRC
Screen temporarily pauses during menus or
remote console text
Screen inexplicably pauses for several seconds while menus or remote console
text is being drawn.
Explanation: Certain U.S. Robotics 28.8 or 33.6 modems contain a firmware
bug that results in this condition during ANSI text connections.
Solution: Obtain a firmware upgrade from modem manufacturer.
■
If you are using either a Compaq SpeedPaq 33.6 or U.S. Robotics 28.8
or 33.6 modem in either the managed server or management console and
see this behavior, contact U.S. Robotics for a firmware update.
Terminal doesn’t scroll correctly in Remote
Console Mode
When entering remote console mode, screen is painted and is immediately
scrolled. Actions that cause the screen on the managed server to scroll are not
be properly echoed on the management console.
Explanation: To scroll correctly, IRC needs to know the size of the terminal
window on the management console.
Solution: Check the following:
■
Adjust the terminal size setting by returning to the IRC Main menu and
selecting the “Remote Console…” submenu. For most ANSI terminal
emulators and TELNET clients, the default terminal size is 24 rows.
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C-12 Troubleshooting
Terminal loses characters or doesn’t paint
correctly in Remote Console Mode
Terminal contains a jumbled representation of the managed server’s screen,
particularly after heavy video activity (large number of scrolls or repaints) on
the managed server.
Explanation: IRC uses hardware RTS/CTS handshaking to control the data
rate to the management console. If hardware flow control is not enabled on both
the management console and the managed server, character overruns can occur
resulting in loss of characters and incorrect display.
Solution: Insure that hardware flow control is enabled and used on both the
management console and the managed server.
■
If you are using Compaq Insight Manager as the terminal application
and have either a Compaq SpeedPaq 33.6 or U.S. Robotics modem
installed in the management console, change the “initialize” string under
Insight Manager’s COM port setup from “AT&F&C1&D2E0S0=0” to
“AT&F1&C1&D2&B1E0S0=0”. This chooses the hardware-flow
control template and also specifies a fixed DTE baud rate.
■
Make sure that either the primary or secondary initialization string
contains the appropriate AT command to place the modem in hardwareflow control on the managed server. See Chapter 2 for information on
this modem setting.
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C-13
“View Reboot Sequence” is grayed out
Menu item “3. View Reboot Sequence” is gray and cannot be selected.
Explanation: The “View Reboot Sequence” menu option is only available if
IRC contains a valid boot sequence. The boot sequence recorder is only
activated under certain conditions. See Chapter 4 “View Reboot Sequence” for
more information on this feature.
Solution: If you believe a valid boot sequence should be available, check the
following:
■
Make sure that the server has not been power-cycled since the capture
event.
■
If you have the modem sharing options set to shared, obtain the latest
system ROM upgrade for your server. IRC firmware versions 1.51 and
greater fix a problem where IRC would accidentally clear the boot
sequence during certain modem sharing events.
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Index-1
Index
A
About This Guide vii
add user 4-21
additional modem information 6-1
answer string
default setting 2-7
setting 2-10
assigning authorized users 2-10
asynchronous management
configuration outline 8-3
configuring 8-2
defined 8-2
attention key
changing the default 4-9
command sequence 5-2
example 5-2
command sequences
table 5-2
compose sequence 5-5
compose sequences
table 5-5
composition examples
table 5-8
default for new user 4-10
defined 5-1
down-arrow sequence, performing
4-7
sequences
using 5-1
support sequence 5-3
example 5-4, 5-6
support sequences
table 5-3
template 5-9
valid alternatives 4-10
audience, expected 1-5
auto-answer mode 3-17
initiating 4-16
auto-answer support
HyperTerminal 3-9
Automatic Server Recovery 4-12,
4-17
B
backspace key mapping for terminal
applications 3-15
baud rate
changing 4-25
setting 2-8
beginning a Remote Console session
4-5
benefits
using Insight Manager to establish
the connection 3-5
boot sequence recorder 4-17
C
cable
null-modem, description B-1
requirement for direct connect 7-2
callback support, terminal emulation
3-17
calling Compaq ix
CAPS LOCK key, significance to
Remote Console 4-7
Change Attention Key
menu option 4-9
screen, figure 4-10
Change Password
menu option 4-20
menu option, described 4-3
screen, figure 4-20
changing the terminal screen size
4-10
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Index-2
COM port
default setting 2-6
recommended settings for external
modem or direct connect 2-4
setting for internal modem 2-4
settings, figure 3-7
communication
parameters
setting 4-24
communication settings for terminal
server 7-9
communications
device
selecting 2-8
requirements for direct-connect 7-2
setup
menu option 4-24
setup screen, figure 4-24
topology between a managed server
and a management console,
figure 1-3
Compaq
Health Driver 4-17
Insight Manager
benefits of using to establish the
connection 3-5
configuring for out-of-band
remote console access 3-2
device list, creating an entry
3-2
using to establish a connection
3-1
Compaq Continued
System Configuration Utility
using F10 key to invoke 2-2
using to determing COM port
and IRQ 2-1
website viii
computer to modem serial port
setting 3-6
setting for terminal emulation
3-16
speed, explained 6-6
speed, setting 2-9, 3-6
speed, setting for terminal emulation
3-16
concentrator 7-4
configuration strings, modem 6-5
configuring
integrated serial port, figure 2-5
IRC for terminal server
configuration 7-8
managed server serial port for
terminal server 7-8
terminal server 7-9
users, figure 2-10
connecting
using a terminal or terminal
emulator 7-1
using a terminal server or
concentrator 7-4
connection
file, creating 3-10
information, saving 3-14
reestablishing after power cycle
4-15
reestablishing without user
intervention 4-16
window, figure 3-12
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Index-3
connection problems 3-16, C-3
caused by floating port speed
2-1
improper configuration 3-6
using a direct-connection C-10
using a modem in dedicated mode
C-3
using a modem in shared mode C-6
using different modems 2-1
conventions
symbols viii
D
data
setting 2-8
data bits
changing 4-25
default setting 2-6
Data Carrier Detect (DCD)
interpretation for direct-connect
7-3
operation, explained 6-6
serial port signal assertion
setting for terminal emulation
3-16
serial port signal assertion, setting
3-6
data compression
explained 6-8
DCD
serial port signal assertion, setting
2-9
debug information, capturing 4-13
Dedicated or Shared in non-NT
Environment Modem Settings, table
A-1
default modem strings
restoring 4-26
default settings 2-6
delete user 4-21
Device Setup window, figure 3-3
diagnostics, running 4-14
dial prefix
default setting 2-7
setting 2-10
dial-back
force, editing 2-14
number, editing 2-12
security 3-18
dialing properties
correcting 3-12
direct connect
COM port recommended settings
2-4
configuring 2-4
configuring integrated serial ports
2-4
IRQ
setting 2-4
mode, requirements 7-1
direct connection 7-1
Disconnect
menu option, described 4-3
disconnecting 4-26
display font of terminal application
3-15
down-arrow attention key sequence,
performing 4-7
DTE speed 6-6
DTR
assertion, setting 2-9, 3-6
assertion, setting for terminal
emulation 3-16
control for direct-connect 7-3
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Index-4
DTR Continued
control for terminal server 7-10
interpretation
explained 6-7
E
Edit Modem Strings screen, figure
4-25
edit user information 2-11
Edit User screen, figure 2-13
Enabling Remote Console Functions,
figure 2-7
enhanced display support 3-6
enhanced keyboard support 3-5
Entering a connection file name, figure
3-10
Entering connection details, figure
3-11
error
cannot dial into operating systembased management in shared
mode C-9
control
protocol 6-7
correction
explained 6-7
setting 3-6
setting for terminal emulation
3-16
correction, setting 2-9
erroneous data, cause 6-7
extra keystrokes sent 6-7
incoming calls not accepted
4-23
incorrect keystrokes sent 6-7
loss of characters, cause 6-7
managed server does not answer
C-6
error Continued
POST C-2
screen temporarily pauses during
menus or remote console text
C-11
server does not answer 3-5, 3-13
Table of Contents, table C-1
terminal doesn’t scroll correctly in
Remote Console Mode
C-11
terminal loses characters or doesn’t
paint correctly in Remote
Console Mode C-12
unable to establish a IRC connection
6-7
View Sequence Replay is grayed out
C-13
establishing a connection
using an ANSI compatible terminal
emulator 3-15
using Compaq Insight Manager,
figure 3-4
using HyperTerminal, figure
3-13
using terminal emulation 3-17
using Windows HyperTerminal 3-8
event log
clearing contents 4-20
navigating 4-19
screen, figure 4-19
example
attention key command sequence
5-2
attention key support sequence 5-4,
5-6
Cisco 2509/2511 RJ-45 Connector
Pinout, table 7-7
Cisco 2509/2511 RJ-45 to DB-9F
Adapter, table 7-8
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Index-5
example Continued
failure situation, figure 4-12
Modify User Information screen,
figure 4-22
United States Keyboard with
Attention Keys indicated, figure
5-9
expected audience 1-5
external modem
requirements 6-1
serial, support defined 6-2
F
F10 key, using to invoke Compaq
System Configuration Utility 2-2
failed login attempt 3-5
failure, Windows NT 4-12
figure
Change Attention Key screen
4-10
Change Password screen 4-20
COM port settings 3-7
Communication topology between a
managed server and a
management console 1-3
Communications Setup screen 4-24
Configuring an integrated serial port
2-5
Configuring users 2-10
Connection window 3-12
Device Setup window 3-3
Edit Modem Strings screen 4-25
Edit User screen 2-13
Enabling Remote Console Functions
2-7
Figure Continued
Entering a connection file name
3-10
Entering connection details 3-11
Establish a connection using
HyperTerminal 3-13
Establishing a connection using
Compaq Insight Manager
3-4
Event Log screen 4-19
Example of a failure situation
4-12
Example: Modify User Information
screen 4-22
Example: United States Keyboard
with Attention Keys indicated
5-9
Manage Configuration screen
4-23
Manage Login Information screen
4-21
Null-modem cable requirements
B-1
Power Cycle dial back 4-15
Power Cycle using ANSI terminal
emulation 4-16
Power Cycle warning 4-15
Reboot Replay Sequence screen
4-18
Reboot Server warning 4-14
Remote Console displays login
prompt after successful call
identification 3-18
Remote Console Main Menu
3-19, 4-1
Remote Console mode 3-20, 4-2
Remote Console submenu 4-4
Selecting a configuration file
2-3
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Index-6
Figure Continued
Selecting a user to modify 2-11
Selecting MS DOS as the operating
system 4-8
Server Reboot menu 4-13
Setting Security Access 2-14
Setting the COM and IRQ resources
2-4
Terminating the connection 4-26
Typical terminal server topology
7-4
Using Remote Console mode
4-5
Viewing the resources of an
integrated serial port 2-5
firmware revision
information displayed 4-24
requirement for HyperTerminal 3-9
flow control
explained 6-7
for direct-connect 7-2
terminal server 7-10
G
garbled characters 6-7
getting help viii
graphical remote control 8-4
guidelines for using ANSI terminal
emulation 3-15
H
hardware information displayed 4-24
http
//www.compaq.com viii, ix
Hyperterminal
auto-answer support 3-9
described 3-8
establishing a connection 3-8
firmware revision requirement for
3-9
limitations 3-8
I
improper termination of an existing IRC
session 6-7
initialization strings
determining 6-5, 8-6
determining in a Windows NT 4.0
RAS Environment 8-6
primary
default setting 2-7
setting 2-9
secondary
default setting 2-7
setting 2-9
Integrated Remote Console (IRC)
accessing 1-5
benefits 1-2
capabilities 1-1
communication device settings for
terminal server 7-9
communications
settings for terminal server 7-9
Configuration Summary, table 2-6
configuring 2-6
described 1-1
establishing a connection to 3-1
installation outline 1-3
Main Menu 4-1
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Index-7
Integrated Remote Console (IRC)
Continued
modem
resources, configuring 2-8
modem requirements 6-1
preparing to install 1-3
requirements 1-2
setup and configuration 2-1
sharing options for terminal server
7-9
integrated serial ports
configuring for external modem or
direct connect 2-4
internal ISA Plug-n-Play modems
6-3
internal modem
configuring 2-2
requirements 6-1
invoke Integrated Remote Console login
3-14
invoke IRC login 3-5
IRC configuration for direct-connect
7-2
IRQ
default setting 2-6
setting for external modem or direct
connect 2-4
setting for internal modem 2-4
Keyboard Continued
type
setting 2-8, 4-23
L
legacy mode 6-3
line wrap setting for terminal application
3-15
login
invoke
using terminal emulation
3-17
invoke Integrated Remote Console
3-14
invoke IRC 3-5
prompt 3-18
cannot obtain in shared mode
C-7
cannot obtain using a directconnection C-10
unable to obtain 3-6, 6-6,
6-7
unable to obtain in dedicated
mode C-4
to remote console 3-18
login prompt
unable to obtain 2-1
K
M
Key Functions for Navigating the IRC
Menu System, table 4-6
keyboard
default setting 2-6
enhanced support 3-5
support
terminal emulation 3-16
main menu
options 4-3
returning to 3-20, 4-2, 4-8
Manage Configuration
menu option 4-23
menu option, described 4-3
screen, figure 4-23
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Index-8
Manage Login Information
menu option 4-21
menu option, described 4-3
screen, figure 4-21
managed server
configuring the serial port for
terminal server 7-8
defined 1-4
serial port configuration for directconnect 7-2
management application
defined 1-4
management console
configuring 3-6
defined 1-4
maximum DTE baud rate, default setting
2-6
modem
additional information 6-1
auto answer string 4-16
command strings, configuring
2-9
compatibility requirements 2-1
configuration setting summary, table
6-5
configuration strings 6-5
external
COM port recommended
settings 2-4
configuring 2-4
configuring integrated serial
ports 2-4
IRQ
setting 2-4
requirements 6-1
serial, support defined 6-2
information file 8-6
modem Continued
initialization strings
appending 3-7
setting for terminal emulation
3-16
installing 2-1
internal
COM port
setting for 2-4
IRQ
setting for 2-4
internal ISA Plug-n-Play 6-3
log file
example 8-8
locating 8-7
PCI-based 6-4
requirements
IRC 6-1
requirements, table 6-1
resources, configuring 2-8
response format, setting 2-9
result code options, setting 2-10
same type recommended 2-1
settings
defaults 2-7
suggested A-1
verifying 3-6
sharing
defined 8-1
requirements 8-1
strings
default, restoring 4-26
editing 4-25
types 6-1
Windows 6-3
modify
out-of-band modem initialization
strings 3-6
user information 4-21, 4-22
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Index-9
N
Netware
setting terminal size 3-15
null-modem cable
description B-1
requirements, figure B-1
POST Errors C-2
power cycle
dial back, figure 4-15
using ANSI terminal emulation,
figure 4-16
warning, figure 4-15
R
O
obtaining the appropriate cable for
terminal server 7-5
operating system
selecting 4-5
outline
asynchronous managment
configuration 8-3
graphical remote control
configuration 8-4
out-of-band access initialization string
default value 3-7
out-of-band remote console access
3-1
out-of-band Remote Console
Connection, establishing 3-4
P
parity
changing 4-25
default setting 2-6
setting 2-8
password
conditions to change 4-20
editing 2-12
PCI-based modems 6-4
playback speed, adjusting 4-18
port speed
set to fixed 2-1
Reboot Replay Sequence screen, figure
4-18
reboot server
menu option 4-12
menu option, described 4-3
options 4-13
rights
default setting 2-13
editing 2-13
Reboot Server warning, figure 4-14
Remote Console
beginning a session 4-5
functions
changing status 4-23
default setting 2-6
enabling 2-7
main menu, figure 4-1
menu option, described 4-3
mode 3-20, 4-2
figure 4-2
rights
default setting 2-13
editing 2-13
submenu options 4-4
submenu, figure 4-4
Remote Console displays login prompt
after successful call identification,
figure 3-18
Remote Console Main Menu, figure
3-19
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Index-10
Remote Console mode, figure 3-20
requirements
cable for direct connect 7-2
communication for direct-connect
7-2
direct connect mode 7-1
external modem 6-1
internal modem 6-1
IRC modem 6-1
terminal server configuration
7-5
reset flow, controlling 4-14
response codes
explained 6-8
when modem sharing 6-8
Return to Main Menu option 4-11
S
screen scroll, setting for terminal
applications 3-16
screen size
terminal emulation 3-16
security access
default setting 2-7
security settings
editing 2-13
Selecting a configuration file, figure 2-3
Selecting a user to modify, figure 2-11
Selecting MS DOS as the operating
system, figure 4-8
sequence replay, terminating 4-18
serial port speed
computer to modem,setting 2-9
server
ability to control 1-1
functions, display list 3-2
server Continued
reboot menu, figure 4-13
response, accelerating 6-8
Setting Security Access, figure 2-14
Setting the COM and IRQ resources,
figure 2-4
Shared in NT 4.0 Environment Modem
Settings, table A-3
sharing options
default setting 2-6
selecing 2-8
standard terms 1-4
stop bits
changing 4-25
default setting 2-6
setting 2-8
suggested modem settings A-1
supervisor rights
default setting 2-13
editing 2-13
Switch Consoles button 3-6
symbols in text viii
T
table
Attention Key Command Sequences
5-2
Attention Key Compose Sequences
5-5
Attention Key Composition
Examples 5-8
Attention Key Support Sequences
5-3
Dedicated or Shared in non-NT
Environment Modem Settings
A-1
Error Table of Contents C-1
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Index-11
table Continued
Example: Cisco 2509/2511 RJ-45
Connector Pinout 7-7
Example: Cisco 2509/2511 RJ-45 to
DB-9F Adapter 7-8
Integrated Remote Console
Configuration Summary 2-6
Key Functions for Navigating the
IRC Menu System 4-6
Modem Configuration Setting
Summary 6-5
modem requirements 6-1
Shared in NT 4.0 Environment
Modem Settings A-3
TAPI support 3-16
technical support ix
telephone numbers ix
format 2-12
terminal application
backspace key mapping for 3-15
display font of 3-15
limitations 3-16
line wrap setting for 3-15
screen scroll, setting for 3-16
terminal size, setting 3-15
terminal communication settings for
direct-connect 7-2
terminal emulation
callback support 3-17
computer to modem serial port
setting 3-16
computer to modem serial port
speed 3-16
connect using 7-1
establishing a connection with 3-17
guidelines for using 3-15
keyboard support 3-16
terminal emulation Continued
login
invoke 3-17
screen size 3-16
seting DTR assertion 3-16
setting error correction 3-16
setting modem
initialization strings 3-16
terminal emulator
establishing a connection using
3-15
terminal screen size
changing 4-10
terminal server
communication settings for 7-9
configuration 7-1
configuration requirements 7-5
configuring 7-9
configuring the managed server
serial port for 7-8
connect using 7-4
connector example 7-7
defined 1-4
DTR control for 7-10
flow control for 7-10
IRC communication settings for
7-9
IRC sharing options for 7-9
IRCcommunication device settings
for 7-9
obtaining the appropriate cable for
7-5
terminal size 3-8
adjusting 4-11
Netware 3-15
setting using terminal application
3-15
Unix 3-15
Windows NT 3-15
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Index-12
terminal size setting
saving 4-11
Terminating the connection, figure 4-26
text conventions vii
Troubleshooting C-1
Typical terminal server topology, figure
7-4
View Boot Sequence Continued
option 4-17
View Event Log
menu option 4-19
menu option, described 4-3
Viewing the resources of an integrated
serial port, figure 2-5
U
W
unable to obtain a login prompt in
dedicated mode C-4
Unix
setting terminal size 3-15
users
adding 2-11, 4-21
assigning authorized 2-10
database, setting up 2-10
deleting 4-21
edit information 2-11
editing information 2-12
maximum number 2-11
modify information 4-21
name, editing 2-12
Using Remote Console mode, figure
4-5
website viii
Windows modems 6-3
Windows NT
example of error 4-12
failure 4-12
recommended terminal size 4-11
terminal size 3-15
text mode changes 3-6
V
verify
modem settings 3-6
out-of-band modem initialization
strings 3-6
server 3-8
View Reboot Sequence
menu option, described 4-3
menu option, gray or inactive
4-17
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