> So... this is basically fragrouter?
No, not really. GoodbyeDPI does not perform IP-level fragmentation, it does not generate/send any packets at all, it only modifies them or drop them.
What's called "Fragmentation" in GoodbyeDPI is TCP Window Size shrinking, to force OS to send TCP packets of small size.
I'm aware of fragroute, and I have plans to implement some of its techniques in GoodbyeDPI.