[donor20]

The idea of the a linux distribution is going to be using the WINDOWS firewall?? seems a bit crazy to me.

I expect the distributions on WSL to use their own firewall - that's half of the fun of using WSL.

PLEASE don't push fake news like this that results in distribution on WSL having to deal with / modify the window firewall - that would be a total nightmare!

[mehrdadn]

My guess is people are confused because Microsoft has marketed WSL2 as a replacement for WSL1, and it makes sense for WSL1 to go through the Windows firewall, so people assumed WSL2 would behave similarly.

[fphhotchips]

If nothing else, I now understand that I'm going to have to read up more on how WSL2 actually works, because I found WSL1 to be a really elegant way of running Linux on Windows without having a whole bunch of virtualisation in place, but it sounds like there's more virtualisation now, and also Hyper V networking has previously broken my network stack.

[dataflow]

tl;dr is WSL2 is just a VM running under Hyper-V. The host is hence Hyper-V, not Windows.