> They also add an -input rules for outgoing packet from tap. (I think this for 
> from
> tap to host)
> 
> 
> -A INPUT -j proxmoxfw-chain-INPUT
> -A FORWARD -m physdev --physdev-out tap100i0 --physdev-is-bridged -j
> proxmoxfw-chain
> -A FORWARD -m physdev --physdev-in tap100i0 --physdev-is-bridged -j
> proxmoxfw-chain
> 
> >> -A proxmoxfw-chain-INPUT -m physdev --physdev-in tap110i0 --physdev-is-
> bridged -j tap110i0-OUT

So we can filter from VM to HOST correctly - that conforms to the docs.

But the other direction does not work (HOST to VM).

Maybe no big problem unless the user assigns IP addresses to multiple bridges.

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