Designed as a cross-platform solution, Serial to Ethernet Connector supports serial over LAN on Windows or on the Linux OS. This RS232 to TCP/IP converter enables the redirection of COM ports to virtual PC, Hyper-V, VMWare, etc. The application lets you create a virtual serial port pair which can then be connected to a program allowing it to communicate with serial devices or other serial-enabled software running on another network-attached computer. The parameters and functionality of physical serial ports are emulated in all of the virtual COM ports that you create and share.
Serial to Ethernet Connector supports Windows operating systems from XP (32-bit and 64-bit) to Windows 10 (32-bit and 64-bit) as well as Windows server 2012.
A Linux version is available for users of ARM-based devices.
TCP/Com program is a basic solution suitable for accessing serial devices as well as RS232 to LAN conversion implementations. Some of the connectivity tasks it can resolve include: turning a computer into a Serial Device Server; communicate over the network with any serial device or application; enact remote control of Serial ports as if they were local; mapping of TCP/IP interfaces; split data from a single physical COM port and send it to multiple serial apps. It runs on versions of the Windows OS from 98 to Windows 10 (32- and 64-bit).
3. Network Serial Port Kit
Network Serial Port Kit is another software tool designed for COM port over LAN sharing. The serial over IP application makes a physical serial ports accessible to other network-attached computers. This lets you connect your machine to a remotely located COM device simply and easily. The program fully emulates serial port internals so that the virtual ports look and function as if they were physical ports.
Network Serial Port Kit is supported on the Windows 32- and 64-bit operating systems and lets you share and access any number of serial devices.
Serial-TCP/IP is an application that enables serial on LAN transmission and makes your current TCP/IP control software available from remote locations. Its built-in "Ping", "Resolve IP Address / HostName", "COM Port State LEDs", and "Data Logging" options facilitate analysis of your TCP/IP network and COM devices. As with the other solutions discussed, this tool makes the testing and debugging work of serial software and hardware developers easier. A limitation of this software is that it only runs on Windows 8, 7, Vista, and XP (32 and 64 bits).
5. Advanced Virtual COM port
Advanced Virtual COM Port is a communications application that offers COM port to LAN functionality as well as the ability to create virtual serial ports. Your apps will treat these ports as if they were physical interfaces as they are created with all parameters and functionality fully emulated. You can dynamically create, remove, and monitor up to 255 virtual ports with no need of rebooting your machine.
Advanced Virtual COM port supports Windows 2000 - Windows 8.1 (32 and 64-bit) and Windows Server 2012 R2. It also supports Windows CE versions: CE 5.0 (x86), CE 5.0 - 6.0 (arm), Mobile 2003 SE, and Mobile 5.0 - 6.5.
Based on your requirements, one of these COM to LAN applications will solve your problem. Some of them are free, and some carry a cost. Keep in mind, that the benefit of using paid software is that you will get program updates and technical support. This can be critical in helping you use the software if you run into any potential issues. So, the decision about the app choice totally depends on your particular situation, and the requirements you have for the software performance. All these apps are a good helper in solving serial over LAN issues.