Chapter 8 – Auto Dial-in Feature
Multi-Tech Systems, Inc. MultiConnect Serial-to-Serial Adapter User Guide (S000354A) 73
Chapter 8 – Auto Dial-in Feature
Introduction
The auto dial-in feature enables the MultiConnect IP to act as a Telnet client thus facilitating the serial
device to access any Telnet/terminal servers on the IP network (over the built-in modem interface). Once
the session (Serial Client to Server) is opened successfully, it allows two-way traffic between the serial
device and the remote server.
The MultiConnect IP, acting as a Telnet/RAW-TCP client, accommodates the following features when
configured:
• Support to open the session using Telnet client (residing in the MultiConnect IP) in Telnet Mode or
RAW Mode.
• Support to open the session to the specified port from a Serial Command prompt (Manual Dial-in).
• Switching between a Command prompt and a Dial-in session when the session is in Telnet mode.
• Support to open the session to the configured port directly (Serial Auto Dial-in) whenever the serial
port is free.
Prerequisites
Mandatory Configuration Settings
The following items must be configured in order to use the dial-in feature:
• Enable Auto dial-in globally on all the serial ports.
# set serial auto-telnet enable
• Enable Auto dial-in on the serial port S0.
# set serial s0 auto-dial-in enable
• Set the Auto dial-in protocol.
# set serial s0 auto-dialin-protocol telnet
• Set the Auto dial-in Server IP Address.
# set serial s0 auto-dialin-ipaddress <ipaddress>
• Set the port to the one, which the Telnet client will be connected.
# set serial s0 auto-dialin-port <port_number>
An ERROR message will display if any of the above details are not configured or not valid.
Optional Configuration Settings
The following commands can be used for optional configurations:
• Enable/Disable Switching-between-Dial-in and the Command Prompt feature.
# set serial escape-monitor <enable/disable>
• Set the Escape-Monitor-String to switch between Dial-in and Command Prompt sessions.
# set serial escape-string "+++inet"
• Set the Serial Dial-in Trigger mode. It dictates the criterion for establishing a connection.
The options provided are on reception of <char/ dtr/ dtr-char/ none>.
Refer to the command line configuration section for details about this command.
# set serial s0 auto-dialin trig-mode <char/dtr/dtr-char/none>
• Enable/Disable the RAW mode globally for all Auto-Dial-in sessions.
# set ip telnet raw-mode <enable/disable>
• Enable/Disable the RAW mode for Auto-Dial-in session on serial port S0.
# set serial s0 raw-dial-in <enable/disable>
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