User`s guide

Configure Digi devices
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The table shows network services, services provided, and the default network port number for each
service.
Service Services provided Default
network
port
number
Device Discovery, also known as
Advanced Digi Discovery Protocol
(ADDP)
Discovery of Digi devices on a network. Disabling this service
disables use of the Digi Device Discovery utility to locate the device,
either on its own or as part of running the Digi Device Setup Wizard.
The network port number for ADDP cannot be changed from its
default.
2362
Encrypted (Secure) RealPort Secure Ethernet connections between COM or TTY ports and device
servers or terminal servers.
1027
RealPort A virtual connection to serial devices, no matter where they reside on
the network.
771
Line Printer Daemon (LPD) Allows network printing over a serial port. 515
Modem Emulation Pool (pmodem) Allows the Digi device to emulate a modem. Modem emulation sends
and receives modem responses to the serial device over the Ethernet
instead of Public Switched Telephone Network (PSTN). Telnet
processing can be enabled or disabled on the incoming and outgoing
modem-emulation connections. The pmodem service is for
connecting to whatever serial port will answer.
50001
Modem Emulation Passthrough Allows the Digi device to emulate a modem. This service is for dialing
in to a particular serial port that has been set up for modem emulation.
50001
Remote login (Rlogin) Allows users to log in to the Digi device and access the command-line
interface through Rlogin.
513
Remote shell (Rsh) Allows users to log in to the Digi device and access the command-line
interface through Rsh.
514
Secure Shell Server (SSH) Allows users secure access to log in to the Digi device and access the
command-line interface.
22
Secure Shell (SSH) Passthrough Accessing a specific serial port set up for SSH. 2501
Secure Socket Service Authentication and encryption for Digi devices. 2601
Simple Network Management Protocol
(SNMP)
Managing and monitoring the Digi device.
To run SNMP in a more secure manner, note that SNMP allows for
“sets” to be disabled.This securing is done in SNMP itself, not through
this command.
If disabled, SNMP services such as traps and device information are
not used.
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