On Fri, March 30, 2018 8:30 pm, [email protected] wrote:
> Looking at the network traffic, the UDP packets that are not making it
> through have a destination of 255.255.255.255 (broadcast), so I'm
> guessing a simple Port forwarding NAT won't work. Would a MASQUERADE work
> better?
>
> Summary question - how do I forward UDP broadcast (255.255.255.255)
> traffic from a separate Win10 machine, to a Qubes 4.0 VM running Debian
> 9?

I'm not sure it's possible to inbound NAT broadcast traffic, have never
heard of a need for it. There's no way to change Steam to send to a
specific IP/port? The ugly hack approach would be to directly attach a
secondary NIC inside the VM you want to receive broadcast traffic but of
course, you lose a lot of layers of protection by doing that.

> Also, should I just take this to a networking forum?

Possibly, maybe some iptables wizard could figure out a way to turn that
broadcast traffic into directed.

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