I would seriously recommend against building your own network stack for production use. Or writing your own web server for production use. Or database (whatever SQL or NoSQL) also for production use.

These sort of things are more complicated than you could expect and have plentiful pitfalls. Whatever you can do in reasonable amount of time is probably not that good compared to existing alternatives.

If you have actually pressing reason to build one and are ready and have means to spend time and effort on it go ahead. But carefully consider the effort needed...