User manual
set service
194 Chapter 2  Command Descriptions 
Service Services Provided
Default 
Network 
Port Number
Advanced Digi Discovery Protocol 
(ADDP), also known as 
Device Discovery
Discovery of Digi Connect products on a network. 2362
Encrypted (Secure) RealPort Secure Ethernet connections between COM or TTY 
ports and device servers or terminal servers.
1027
Hypertext Transfer Protocol 
(HTTP), also known as 
Web Server
Access to web pages for configuration that can be 
secured by requiring a user login.
80
Hypertext Transfer Protocol over 
Secure Socket Layer (HTTPS), 
also known as Secure Web Server
Access to web pages for configuration that can be 
secured by requiring a user login, with encryption for 
greater security.
443
Line Printer Daemon (LPD) Allows network printing over a serial port. 515
Modem Emulation Pool (pmodem) Allows the Digi Connect product 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.
5000
Modem Emulation Passthrough Allows the Digi Connect product to emulate a modem. 
This service is for dialing in to a particular serial port 
that has been set up for modem emulation.
5001
RealPort A virtual connection to serial devices, no matter 
where they reside on the network. 
771
Remote login (Rlogin) Allows users to log in to the Digi Connect device and 
access the command-line interface via Rlogin.
513
Remote shell (Rsh) Allows users to log in to the Digi Connect device and 
access the command-line interface via Rsh.
514
Secure Shell (SSH) Allows users secure access to log in to the Digi 
Connect 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 Connect 
devices.
2601
Simple Network Management 
Protocol (SNMP)
Managing and monitoring the Digi Connect device. 
If you want to run SNMP, but 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.
161
Transmission Control Protocol 
(TCP) Echo
Used for testing the ability to send and receive over a 
TCP connection, similar to a ping.
7
Telnet  Allows users an interactive Telnet session to the Digi 
Connect product’s command-line interface. 
23










