maybe its a simple question but cant find the reason why
all the packets marking for the download packets are using the Forward chain on the in-interface connected to the internet
using the Postrouting chain with the destination address of the local network
BUT didn't seen any configuration where the download packets are being marked with the Prerouting chain
whats wrong with using the Prerouting chain to mark the incoming/download packets coming from the internet to the local network as "download packets"