I have one WAN interface and a total of five vtunX interfaces which speak to their respective OpenVPN servers over the WAN link.
Furthermore, I have segmented my private network into several 802.1q VLANs, one for each subnet. The hosts in each of the subnets go out to the internet through a dedicated vtunX interface respectively.
What I would like to accomplish now is to set up a QoS shaper that prioritizes incoming traffic from the internet by the destination’s VLAN ID.
My question is: Which interface(s) do I apply the shaping policy to? All the OpenVPN instances connect through the WAN interface, but logically, the internal subnets do not. And they all use a different vtunX interface to go out to the internet. I hope this is not to badly explained and I am making myself clear here.
Thank you all in advance!