8-1
Compaq Integrated Remote Console User Guide
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
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.
