A COM port redirector is a specialized software application that enables remote access to peripheral devices by redirecting COM data over a network. Serial port redirector interfaces with your network software to provide extended capabilities regarding locally attached COM devices.

Here are the five best software solutions that allow you to redirect COM ports over a network:

COM Port Redirector by Electronic Team, Inc.

Redirect serial ports over Ethernet

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COM Port Redirector lets you share a single COM port and its attached device with multiple network-connected computers no matter where they are located. This versatile virtual serial port redirector app enables up to 500 serial port devices to be shared over a network. You can use a company LAN or the Internet to remotely work with any type of serial device that can communicate with your machine. Both the remote physical ports and virtual interfaces created by the software appear as actual ports with a direct connection to your computer.

There are multiple benefits that can be achieved through the use of the COM port redirector utility. Peripheral devices attached to a network-connected computer can be used by any other computer that is on the same network. COM port redirector software can also solve the problem of connecting to serial devices from computers that are not equipped with COM ports.

With RS232 port redirection, remote devices are presented to users as if they had a direct connection to the peripheral and enables them to access their full functionality.

COM Port Redirector features:

• The tool’s server capabilities easily redirect serial ports over a TCP/IP network.
• Client connections enable remote computers to access and use network-attached serial devices.
• The TCP serial port redirector supports both Windows and Linux systems.
• The UDP/IP transport protocol is fully supported for port redirection.
• Virtual environments such as Hyper-V and VMWare can take advantage of COM port redirection.

Electronic Team's COM Port Redirector can be run on Windows and Linux systems.

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Serial Port Redirector by FabulaTech LLP

Serial Port Redirector by FabulaTech LLP is an RS232 port redirector application that enables remote access to COM devices attached to a TCP/IP-based network. Virtual serial ports are created and the utility redirects all data transmission to the port to a host specified with an IP-address and TCP-port.

Serial Port Redirector is usually used to enable a connection to serial devices by a remote client. Virtual serial ports are created on the local side to establish communication. An IP-address and TCP-port on a remote machine are specified to configure the virtual interface. The connection between host and client is established immediately upon communication software opening the local virtual serial port.

A Hardware Serial Device Server is deployed on the remote side to accept the incoming network connection from the Ethernet COM port redirector. It forwards the data stream and control signals to an attached COM device.

Serial Port Redirector by FabulaTech LLP can only be run on Windows systems.

Secure Com Port Redirector by Lantronix

Secure Com Port Redirector (SCPR) is a software solution that establishes secure communication between a computer and peripheral devices attached to a serial port. It allows legacy equipment to be used securely throughout an organization.

Secure Com Port Redirector configuration

The software uses advanced encryption algorithms and TCP/IP protocols to map Lantronix device servers to virtual COM ports. Data is encrypted at both ends of the connection, allowing fully secure communication over the Internet or local networks. Data security is persevered, enabling the devices to be managed from any network-attached computer.

Note:
- The software only supports the Windows operating system.
- Device servers must support the Rijndael AES encryption protocol to use the virtual COM port redirector.

SERIAL-TCP/IP by CommFront

Serial-TCP/IP lets you access control systems remotely by redirecting serial port traffic. It facilitates analysis of TCP/IP networks with pre-defined "Ping", "Data Logging”, ”Resolve IP Address / HostName", and "COM Port State LEDs" features.

It is a valuable tool for technicians who need to test and debug serial hardware and software solutions.

Note:
- The program is limited to support of Windows 8, 7, Vista, and XP (32 and 64 bits) operating systems.
- SERIAL-TCP/IP has a free license but it can only be used for non-commercial projects.

Serial/IP® Virtual Serial Port Redirector by Tactical Software

Tactical’s Serial Port Redirector provides the same level of functionality to network-attached serial devices as that furnished by a local connection. The software creates virtual serial interfaces which it makes available to Windows compatible applications. Serial servers from over 30 manufacturers are supported by the software solution.

Virtual Serial Port Redirector by Tactical Software interface

This tool lets you use virtual ports to replace local COM ports by adding them through the app’s control panel.

Features include:

• the ability to open, read, and enter virtual COM ports through a standard application programming interface,
• monitoring serial port operation,
• transmitting data streams,
• and automatically creating TCP / IP connections to the serial server.

Remote access is accomplished by accepting the Serial / IP Redirector connection and converting the data streams which are then transmitted to the server ports. Serial servers can be replaced by wireless modems when configuring the environment.

Serial/IP® Virtual Serial Port Redirector by Tactical Software only supports the Windows OS.

TalTech TCP/Com

Users can quickly and easily access their serial port devices with TCP/com port redirector utility software. This is done using a UDP, TCP, or IP network—as well as by redirecting data from an Ethernet/IP to a virtual or physical RS232 serial port.

Such flexibility means that users can transmit data across any type of IP/TCP network with their pre-existing Windows RS232 communication/serial port redirector applications.

TCP/com redirector tools are an easy solution for a large variety of issues revolving around device interfacing and RS232 or TCP/IP conversion. Below we’ll share a few examples:

• Configuring a PC to act as a Serial Device Server (Terminal Server)
• Creating Virtual COM ports
• Transmitting network (Ethernet) data to COM ports
• Transferring data back and forth via a TCP/IP port using serial communication programs
• Opening COM ports on another computer sharing your network so that they behave as if they were local to the machine you’re operating from
• Implementing an Internet or Ethernet network to act as a large serial RS232 cable (Serial Tunneling)

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Serial to Ethernet Connector

Access remote serial port over IP Network for Windows

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Requirements

Requirements: Windows (32-bit and 64-bit): 2008 R2 SP1/7 SP1/8/10/11; Windows Server 2012/2016/2019/2022; Windows 10/11 on ARM.

Latest version

Latest version: v8.0.1203, Released 8 Mar, 2022 Release notes

Best COM Port Redirector Utilities