7: Line and Tunnel Settings
EDS-MD® Medical Device Server User Guide
53
Table 7-6 Tunnel Connect Mode Settings
Tunnel Connect Mode
Settings
Description
Mode
Set the method to be used to attempt a connection to a remote host or device.
Choices are:
Disable
= an outgoing connection is never attempted. (
default
)
Always
= a connection is attempted until one is made. If the connection gets
disconnected, the device retries until it makes a connection.
Any Character
= a connection is attempted when any character is read on
the serial line.
Start Character
= a connection is attempted when the start character for the
selected tunnel is read on the serial line.
Modem Control Asserted
= a connection is attempted as long as the
Modem Control pin (DSR) is asserted, until a connection is made.
Modem Emulation
= a connection is attempted when triggered by modem
emulation AT commands.
Local Port
Enter an alternative Local Port. The Local Port is set to <Random> by default but
can be overridden. Blank the field to restore the default.
Host (Number)
Click on the displayed information to expand it for editing. If <None> is
displayed, clicking it will allow you to configure a new host. At least one Host is
required to enable Connect Mode as this information is necessary to connect to
that host. Once you start to edit Host 1, a box for Host 2 will show up. Editing
Host 2 will cause a Host 3 box to appear. Up to 32 hosts are available.
Complete the following fields to configure a host:
Address:
enter the address for the remote host connection. Either a DNS
address or an IP address maybe provided.
Port:
designate the TCP or UDP port on the remote host for connection.
Protocol:
select the desired security protocol. SSH is recommended for
circumstances with high security concerns. When using SH, both the SSH
server host keys and the SSH server authorized users must be configured.
TCP Initial Keep Alive:
specify the amount of time to wait before the first
Keep Alive probe is sent to the remote host in order to keep the TCP
connection up during idle transfer periods. Set to 0 to disable and blank the
display field to restore the default.
TCP Keep Alive Interval:
specify the amount of time to wait before probing
the remote host, after the initial probe, in order to keep the TCP connection up
during idle transfer periods. Blank the display field to restore the default.
TCP Keep Alive Probes:
specify the number of TCP Keep Alive probes
(after the TCP Initial Keep Alive Probe) to send before closing the connection
if no response is received. Valid values are between 1 and 16. Blank the
display field to restore the default.
