Introduction
Network connections and data paths
Digi ConnectPort X Family
21
Network/serial clients
A network/serial client connection occurs when a Digi ConnectPort X product initiates a network
connection or opens a serial port for communication. There are several categories of network/serial
client connections:
n
Autoconnect behavior client connections
n
Command-line interface (CLI)-based client connections
n
Modem emulation (pseudo-modem) client connections
Autoconnect behavior client connections
In client connections that involve autoconnect behaviors, a Digi ConnectPort X Family product initiates
a network connection based on timing, serial activity, or serial modem signals. Autoconnect-related
client connections include:
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Raw TCP connection
: The Digi ConnectPort X Family initiates a raw TCP socket connection to
a remote entity.
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Telnet connection
: The Digi ConnectPort X Family initiates a TCP connection using the telnet
protocol to a remote entity.
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Raw TLS encrypted connection
: The Digi ConnectPort X Family initiates an encrypted raw
TCP socket connection to a remote entity.
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Rlogin connection
: The Digi ConnectPort X Family initiates a TCP connection using the rlogin
protocol to a remote entity.
Command-line interface (CLI)-based client connections
CLI-based client connections are available for use when you establish a session with the Digi
ConnectPort X Family product’s CLI. CLI-based client connections include:
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ssh
: Allows you to connect to a remote entity using the ssh protocol.
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telnet
: Allows you to connect to a remote entity using the telnet protocol.
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rlogin
: Allows you to connect to remote entity using the rlogin protocol (bash only).
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scp
: Allows you to transfer files (bash only).
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connect
: Begin communicating with a local serial port.
Note
Additional communication methods include using a bash shell such as scp, tftp, nc, or using
Python.
Modem emulation (pseudo-modem) client connections
When a port is in the modem-emulation or pseudo-modem mode, it can initiate network connections
based on AT command strings received on the serial port. See the
Digi Connect® Family Command
Reference
on
for modem emulation AT commands.
