Terminal-Server Mode; Dial-In Modem Mode; Serial-Port Parameters - Belkin OmniView F1DP116S User Manual

Serial Ports
The following parameters are configurable in console-server mode:
Listening TCP Port Number
You can also access a serial port through the IP address of the Console
Server and the listening TCP port number of the serial port.
If the IP address of the Console Server and the serial port are assigned as
192.168.123.100 and the listening TCP port number is 4001, the user can
connect to the port as follows:
telnet 192.168.123.100 4001
Protocol
Select "Telnet", "SSH", or "Raw TCP" as the protocol. If users are using
a telnet client program, select "Telnet". If users are using an SSH client
program, select "SSH". When "Raw TCP" is selected, direct TCP socket
communication is available between the Console Server and the remote host.
Inactivity Time-Out
Enable this feature to avoid a client holding on to a TCP connection when
there has been no activity on a serial port for a long period of time. If
"Inactivity timeout" is enabled, and there is no data activity between
the Console Server and the telnet/SSH client for the specified inactivity
time-out interval (i.e., no data activity through the serial port), the existing
TCP session will automatically be closed. If you want to maintain the
connection indefinitely, configure the inactivity time-out period to "0".
TCP Keep-Alive (No Configuration Required)
In order to avoid TCP-connection lockup, the Console Server will continue to
check the connection status between the telnet/SSH client and the Console
Server by periodically sending "keep alive" packets. If the telnet/SSH client
does not answer the packets, the system will assume that the connection is
down. The Console Server will then close the existing telnet/SSH connection,
regardless of the inactivity setting. This will prevent the TCP connection
from locking when an application is improperly closed or the network link is
interrupted.
Terminal-Server Mode
In terminal-server mode, the Console Server's serial port is configured to
wait for data from the device connected to the port. If data is detected,
the Console Server will initiate a TCP session as a telnet or SSH client to a
predefined server. The server must be defined by users before the port can
be configured for a telnet or SSH client. This mode can be used to access
servers on the network from a serial terminal. RawTCP is also supported with
the terminal-server mode.
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Serial Ports
In order to terminate a telnet/SSH/RawTCP session in terminal-server mode,
you may use these three control-key sequences (Ctrl-Z / Ctrl-X / Ctrl-C).
Dial-in Modem Mode
In this mode, the Console Server assumes an external modem is attached
to the serial port and waits for a dial-in connection from a remote site. When
a user dials in using a terminal application, the Console Server will accept
the connection and display the appropriate prompt or menu for the user that
logged in.
Serial-to-Serial Mode
Please refer to the "Serial-to-Serial Function" section on page 34 for details
for this mode.
Serial-Port Parameters
To connect the serial device to the Console Server's serial port, the serial-port
parameters of the Console Server should match exactly to the requirements
of the attached serial device.
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