Hello,
Could you please explain me some topics, or link me the manual with definition, what is the meaning of the "Passthrough=yes, passthrough=no" in the firewall mangle?
It means that you are able to mark connection (with 'passthrough=yes') and next mark it with routing mark, for example.passthrough (yes | no; default: yes) - whether to let the packet to pass further (like action passthrough) after marking it with a given mark (property only valid if action is mark packet, connection or routing mark)