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8-2

Modem Sharing

Writer: Caroline Juszczak Project: Compaq Integrated Remote Console User Guide Comments: 281862-002

File Name: I-CH08.DOC Last Saved On: 11/20/98 10:32 AM

COMPAQ CONFIDENTIAL - NEED TO KNOW REQUIRED

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-of-
band 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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Содержание 281862-002

Страница 1: ...Integrated Remote Console User Guide Second Edition December 1998 Part Number 281862 002 Compaq Computer Corporation ...

Страница 2: ...nsent from Compaq Computer Corporation 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 Compaq Deskpro Fastart Compaq Insight Manager Systempro Systempro LT ProLiant ROMPaq QVision Smart...

Страница 3: ...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 dir...

Страница 4: ...Terminal 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...

Страница 5: ... 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 Compressio...

Страница 6: ... 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...

Страница 7: ...ts 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 an...

Страница 8: ...ates that failure to follow directions could result in damage to equipment or loss of information IMPORTANT Presents clarifying information or specific instructions NOTE 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 Comp...

Страница 9: ...bers 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...

Страница 10: ...ver 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 l...

Страница 11: ...lude 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 mo...

Страница 12: ...ware 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 CS...

Страница 13: ...ed 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 s...

Страница 14: ... 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 standa...

Страница 15: ...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 th...

Страница 16: ...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 Con...

Страница 17: ... 98 12 54 PM 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 ...

Страница 18: ...ectly 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 desir...

Страница 19: ...Guide Comments 281862 00x File Name C CH02 DOC Last Saved On 11 20 98 12 54 PM 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 ...

Страница 20: ...ary 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 Communic...

Страница 21: ...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 ...

Страница 22: ...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 mod...

Страница 23: ...ary 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 str...

Страница 24: ...on 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 auto answer mode answering on the first ring Assigning Authorized ...

Страница 25: ...er 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...

Страница 26: ...ers 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 ar...

Страница 27: ...ghts 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 A...

Страница 28: ...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 ...

Страница 29: ...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...

Страница 30: ...tegrated Remote Console is available for in band 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 acce...

Страница 31: ...r 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 C...

Страница 32: ...t 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 mod...

Страница 33: ...ou 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 Aft...

Страница 34: ...ings 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 Co...

Страница 35: ...ettings 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...

Страница 36: ... 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...

Страница 37: ...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 no...

Страница 38: ...nection 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 ...

Страница 39: ...H03 DOC Last Saved On 11 20 98 12 55 PM 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 ...

Страница 40: ...ents 281862 00x File Name D CH03 DOC Last Saved On 11 20 98 12 55 PM 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 ...

Страница 41: ...ction 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 st...

Страница 42: ...lidate 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 invo...

Страница 43: ...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...

Страница 44: ...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 list...

Страница 45: ...ndicate 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...

Страница 46: ... 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 usernam...

Страница 47: ...omments 281862 00x File Name D CH03 DOC Last Saved On 11 20 98 12 55 PM 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 ...

Страница 48: ...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 ...

Страница 49: ...he 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 f...

Страница 50: ...ved On 12 21 98 10 32 AM 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 ...

Страница 51: ... 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 ...

Страница 52: ...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 Afte...

Страница 53: ...erver 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 ...

Страница 54: ...t 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 chan...

Страница 55: ...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 m...

Страница 56: ...hat 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 yo...

Страница 57: ...s 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...

Страница 58: ...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 numb...

Страница 59: ...igured 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 ...

Страница 60: ...rator 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 OS based 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 c...

Страница 61: ...uence 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 ...

Страница 62: ...at 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 ...

Страница 63: ... 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 dia...

Страница 64: ...ber 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 b...

Страница 65: ...aded 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 minut...

Страница 66: ... E CH04 DOC Last Saved On 12 21 98 10 32 AM 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 ...

Страница 67: ...ew 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 ...

Страница 68: ...itted 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 th...

Страница 69: ...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 ed...

Страница 70: ...reen 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 ba...

Страница 71: ...creen 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 Sys...

Страница 72: ...on 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...

Страница 73: ...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 Ch...

Страница 74: ...rings 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 o...

Страница 75: ...es 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...

Страница 76: ...nal 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 t...

Страница 77: ...uences 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...

Страница 78: ...n 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 t...

Страница 79: ...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 ...

Страница 80: ... 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...

Страница 81: ...o 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 ...

Страница 82: ... 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 Right Shift 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 ...

Страница 83: ...nate mode much like the alt function keys on a laptop keyboard Note the geographic placement of these sequences as seen on an U S domestic keyboard layout Alt Alt Refresh Screen Alt Ctrl Sequen End Ctrl Menu Ctrl Shift Shift Shift Tab Esc Backspace Enter PgDn PgUp Home Ins End Del Seq Clear Figure 5 1 Example United States Keyboard with Attention Keys indicated Changing the Attention Key See Chapt...

Страница 84: ...ater 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 External Modem High Speed with error negotiation protocol V FC V 42 V ...

Страница 85: ...figured 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 pre configured through switches on the modem for auto answer mode this signal should also be illuminated shortly after the TR ...

Страница 86: ...he 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 mod...

Страница 87: ...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 mode...

Страница 88: ...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...

Страница 89: ...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 modem...

Страница 90: ...f 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...

Страница 91: ...h 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 ...

Страница 92: ... 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 foun...

Страница 93: ...y 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 direct connect configurations it is recom...

Страница 94: ...ctivity 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 p...

Страница 95: ... 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 Terminal Server Management Console Modem Modem Server 1 Server 2 Server 3 Server 4 LAN Figure 7 1 Typical terminal server topology Figure 7 1 shows a typical terminal server topology In such a configuration...

Страница 96: ... in this environment To obtain the necessary connector density terminal servers typically route the serial ports to non standard 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 ar...

Страница 97: ...milarly 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 terminal ready DTR of the managed server must be connected to both the data carrier detect DCD and the data set ready DSR of the terminal server Simila...

Страница 98: ...t 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 ...

Страница 99: ...pplicable 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 Con...

Страница 100: ... 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 Us...

Страница 101: ...LNET 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...

Страница 102: ...em 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 ...

Страница 103: ...ata 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 of band management device IRC To implement this configuration configure asynchronous management a...

Страница 104: ...synchronous 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 asynchron...

Страница 105: ...ANYWHERE 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 remot...

Страница 106: ...rating 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 IR...

Страница 107: ... 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 s...

Страница 108: ...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 ser...

Страница 109: ... 03 536 Send AT cr 9 01 19 1998 16 45 03 866 Recv AT cr 10 01 19 1998 16 45 03 866 Recv 0 cr 11 01 19 1998 16 45 03 866 Interpreted response OK 12 01 19 1998 16 45 03 866 Send AT F cr 13 01 19 1998 16 45 03 866 Recv AT F cr 14 01 19 1998 16 45 03 866 Recv cr lf OK cr lf 15 01 19 1998 16 45 03 866 Interpreted response OK 16 01 19 1998 16 45 03 866 Send AT E0 U2 V0 D2 C1 S0 0 cr 17 01 19 1998 16 45 ...

Страница 110: ...sponse 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 comman...

Страница 111: ...er 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 non Windows NT Environments NOTE The Port Setting for all modems is 8 N 1 Table A 1 Dedicated o...

Страница 112: ...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...

Страница 113: ...odems 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 External Fax Modem 1 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 External Fax Modem 1 57600 AT FE0Q0V1 C1 D2S95 ...

Страница 114: ...emSURFER External 28 8 57600 AT FE0 C1 D2 V1V0W2 ATS7 60S30 0L0M1 N3 C1 Q3B G1X4 Multi Tech MT2834BA External 1 57600 AT FE0X4S25 20 ATS7 60S30 0M1 E1 E15 E4X4 Multi Tech MT5634ZDX External 1 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 6...

Страница 115: ...complete set of modem control signals The exact wiring diagram for this cable is shown in below Cables are occasionally labeled as null modem 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 DCD RX TX DTR GND DSR RTS CTS RI DCD RX TX DTR GND DSR RTS CTS...

Страница 116: ... 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 C ...

Страница 117: ... 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 ...

Страница 118: ...hared 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 correctl...

Страница 119: ...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 th...

Страница 120: ...ization 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 initializa...

Страница 121: ...per operation of the modem has been verified in the operating system with Integrated Remote Console disabled re enable 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...

Страница 122: ... 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 ...

Страница 123: ... 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 ...

Страница 124: ...tem 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 m...

Страница 125: ...rrier 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 null modem 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 be...

Страница 126: ...3 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 Conso...

Страница 127: ...naged 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 ...

Страница 128: ...ains 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...

Страница 129: ...rrow 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 Conso...

Страница 130: ...r 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 c...

Страница 131: ...ng 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 editi...

Страница 132: ... 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 Re...

Страница 133: ... 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 s...

Страница 134: ...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 determini...

Страница 135: ...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 K 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 Keyboard Continued type setting 2 8 4 23 L legacy mode 6 3 line wrap setting for terminal application 3 15 login inv...

Страница 136: ...ry 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 Pla...

Страница 137: ... 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 POST Errors C 2 power cycle dial back figure 4 15 using ANSI terminal emulation figure 4 16 warning figure 4 15 R Reboot Replay Sequence screen figure 4 18 reboot server menu option 4 12 menu option described 4 3 options 4 13 rights de...

Страница 138: ... 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 Setting...

Страница 139: ...or 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 st...

Страница 140: ...ase 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 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 View Boot Sequence Continued option 4 17 View Event Log...

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