Configuring network interfaces Configure serial interfaces
Digi TransPort® Routers User Guide
328
Configure port redirection using RealPort
Digi devices use the patented RealPort COM/TTY port redirection for Microsoft Windows.
RealPort software provides a virtual connection to serial devices, no matter where they reside on the
network. The software is installed directly on the host PC and allows applications to talk to devices
across a network as though the devices were directly attached to the host. Actually, the devices are
connected to a Digi device somewhere on the network. RealPort is unique among COM port re-
directors because it is the only implementation that allows multiple connections to multiple ports over
a single TCP/IP connection. Other implementations require a separate TCP/IP connection for each
serial port. Unique features also include full hardware and software flow control, as well as tunable
latency and throughput. Access to RealPort services can be enabled or disabled.
Encrypted RealPort
Digi devices also support RealPort software with encryption. Encrypted RealPort offers a secure
Ethernet connection between the COM or TTY port and a device server or terminal server.
Encryption prevents internal and external snooping of data across the network by encapsulating the
TCP/IP packets in a Secure Sockets Layer (SSL) connection and encrypting the data using Advanced
Encryption Standard (AES), one of the latest, most efficient security algorithms. Access to Encrypted
RealPort services can be enabled or disabled. Digi’s RealPort with encryption driver has earned
Microsoft’s Windows Hardware Quality Lab (WHQL) certification. Drivers are available for a wide range
of operating systems, including Microsoft Windows Server 2003, Windows XP, Windows 2000, Windows
NT, Windows 98, Windows ME; SCO Open Server; Linux; AIX; Sun Solaris SPARC; Intel; and HP-UX. It is
ideal for financial, retail/point-of-sale, government or any application requiring enhanced security to
protect sensitive information.
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