9: Administration
SGX 5150 IoT Device Gateway User Guide 121
Table 9-50). If the connection attempt fails or the connection drops, then it retries after a timeout.
The remote node on the network must listen for the Connect Mode’s connection.
For Connect Mode to function, it must be enabled, have a remote station (node) configured, and a
remote port configured (TCP or UDP). When established, Connect Mode is always on. Enter the
remote station as an IPv4 or IPv6 address or DNS name. The SGX 5150 will not make a
connection unless it can resolve the address. For Connect Mode using UDP, the SGX 5150
accepts packets from any device on the network. It will send packets to the last device that sent it
packets.
Note: The port in Connect Mode is not the same port configured in Accept Mode. Telnet
protocol is not supported in Tunnels on USB interfaces. The TCP keepalive time is the
time in which probes are periodically sent to the other end of the connection. This ensures
the other side is still connected.
Table 9-50 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 SGX 5150 gateway 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 1 Click on the displayed information to expand it for editing. Complete the Host
fields that appear according to Table 9-51.
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.
Reconnect Timer
Set the value of the reconnect timeout (in milliseconds) for outgoing
connections established by the SGX 5150 gateway. Valid range is 1 to 65535
milliseconds. Default is 15000.
Flush Serial Data
Set whether the serial Line data buffer is flushed upon a new network
connection. Choices are:
Enabled = serial data buffer is flushed on network connection
Disabled = serial data buffer is not flushed on network connection (default)
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