Fix Mac Address spoofing in Hyper-V 2019
When we have a virtual router as a VM on Hyper-V 2019 running a setup that requires Mac Address Spoofing to be enabled, then performance is really bad.
We have testet with routers based on Windows Server 2019, Linux and BSD, and the results are the same.
Migrating the same VM's to a Windows Server 2016 node, the problem is gone.
It seems to be a problem related to Hyper-V 2019 "Mac Address Spoofing" function