UDP Packet Forwarder

This project implements a UDP packet forwarder using the ASIO library, simulating NAT behavior for packet forwarding. It's designed with multi-user support and is cross-platform, functioning seamlessly across all major operating systems and architectures.

Features✨

• Facilitates UDP packet forwarding, akin to NAT behavior.
• Supports multiple users concurrently.
• Cross-platform compatibility: Works on Windows, Linux, and macOS.
• Leverages the ASIO library for high-performance asynchronous I/O operations.
• Development environment requirements:
  • Visual Studio Code
  • Git
  • CMake、Ninja
  • For Windows compilation: Visual Studio 2017 or newer
  • For Linux compilation: Docker

Quick Start🚀

Clone the Repository

git clone https://github.com/iGwkang/udp_forward.git
cd udp_forward

Compilation

Using VSCode (Recommended for Development)

1. Install the C/C++, CMake, clangd, and Dev Containers extensions in VSCode.
2. For Windows compilation, select the Visual Studio toolchain in the CMake extension. For Linux compilation, press F1 in VSCode, select "Reopen in Container," then choose the GCC toolchain in the CMake extension. Finally, initiate the build process.

Using Command Line

mkdir build
cd build
cmake ..
cmake --build . --config Release

Usage Example💬

1. Configure forwarding parameters following the format specified in config/forward.ini.

  [Forward]
  10000=10.10.1.1:12000
  10001=10.10.1.2:12000
  10002=10.10.1.3:12000

2. Run udp_forward with the command ./udp_forward -c config/forward.ini. This will cause udp_forward to listen on 0.0.0.0:10000 and forward packets to 10.10.1.1:12000.

Contribution

Contributions via issues or pull requests to enhance this project are welcomed.

License

MIT License