Transparent Mode Behavior For Outgoing Udp Data; Transparent Mode Behavior For Incoming Tcp Connections; Transparent Mode Behavior For Incoming Udp Connections - Digi XBee 3 Cellular LTE-M User Manual

Socket behavior

Transparent mode behavior for outgoing UDP data

To send outgoing UDP data to a remote host, send data to the XBee Smart Modem's serial port. If
(Protocol/Connection Indication)
value of CI indicates why the data failed to be sent.
The RO (Packetization Timeout)
before being sent to the remote host. The first send opens up a UDP socket used to send and receive
data. Any data received by this socket is sent out the XBee Smart Modem's serial port.
Note Set RO to FF for realtime typing by humans. Also, see

Transparent mode behavior for incoming TCP connections

The C0 (Source Port)
incoming connections (TCP) and incoming data (UDP) in Transparent mode. TLS is not currently
supported for incoming connections.
Note For NB-IoT, TCP support is dependent on the network. Contact your network provider for
details.
When the IP setting is TCP and there is no existing connection to or from the XBee Smart Modem, the
device accepts one incoming connection. Any data received on the connection is sent out the XBee
Smart Modem's serial port. Any data sent to the XBee Smart Modem's serial port is sent over the
connection. If the connection is disconnected, it discards pending data.

Transparent mode behavior for incoming UDP connections

When the IP (IP Protocol)
Modem's network port specified by
Any data sent to the XBee Smart Modem's serial port is sent to the network destination specified by
the DL (Destination Address)
unspecified or invalid, the XBee Smart Modem discards data sent to the serial port.
Digi XBee® 3 Cellular LTE-M/NB-IoT Global Smart Modem User Guide
reports a value of 0, the data was successfully sent; otherwise, the
setting provides some control in how the serial data gets packetized
and IP (IP Protocol) settings specify the listening port and protocol used for
setting is UDP any data sent from a remote host to the XBee Smart
C0 (Source Port)
and DE (Destination port)
Transparent mode behavior for outgoing UDP data
TD (Text Delimiter).
is sent out the XBee Smart Modem's serial port.
settings. If the DL and DE settings are
CI
162