Can smoltcp be used as a virtual userspace networking stack?

[clarkmcc]

I'm not familiar with this project, but I noticed that it has nice abstractions at multiple networking layers so it got me thinking, could I use this to run user-space networking? Specifically, I'm looking for a Rust replacement for Google's netstack so that I can tunnel L2 over something else (like L4). See this project as an example.

[strobecat]

I'm trying to make one, for Python strobecat/pytun-pmd3
Though facing some problems now