How to configure IGMP routing right?

My server need to pass multicast UDP streams from physical NIC to a virtual NIC. Network layout is this: Ubuntu Server (ffmpeg) in Hyper-V <---> Windows Server (Wowza) <---> Multicast subnet.
Here is what I've done: Enabled RRAS service. Added IGMP protocol to IPv4 routing. Added pNIC and vNIC as interfaces. pNIC is in Proxy mode, vNIC is in Router mode.
That way I can at least see: 1) new records in IGMP group table when someone is requesting IGMP membership, 2) UDP packets flooding pNIC multicast interface when request from vNIC is received. However, I can't listen vNIC interface with Wireshark from guest
or host by some reason so I don't know if packets are actually reaching the player on VM. I assume they aren't, because I can't play it with VLC or ingest the stream by ffmpeg (but who knows, maybe it just can't be played in Hyper-V?).
If both interfaces are in IGMP router mode, no UDP traffic can be detected.
The question is where exactly the problem is. That Router/Proxy layout I've did seems to be "one-way". But I think in theory it is possible that both subnets have their own multicasts, and both subnets can have different consumers to play all those
multicast streams, so that Windows should route it correctly both ways.
Did I configured IGMP routing on Windows Server correctly? Because I'm not really sure.
Update:I tried to restream the udp-stream via VLC Player right into Ubuntu VM's interface. This way ffmpeg was able to catch something. It has another problems, though, but clearly is receiving some data now. So IGMP isn't configured right
by me, right? Then the topic question is the actual question.

Hi,
To verify if the VM receives the multicast packet, please try to perform a network capture by using Network Monitor.
To download Network Monitor, please click the link below,
Microsoft Network Monitor 3.4 (archive)
https://www.microsoft.com/en-hk/download/details.aspx?id=4865
If the packets are revceived, it should be an software issue. Please check the settings of Ubuntu.
If the packets are not received, due to it is more related to Hyper-V, to get better help, please post this question on the Hyper-V forum.
Here is the address,
https://social.technet.microsoft.com/Forums/windowsserver/en-US/home?forum=winserverhyperv
Best Regards.
Steven Lee Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Support, contact [email protected]

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