I currently use Download Station on my Synology NAS to download torrents. I have a NordVPN subscription and I am wondering if I can set my NAS so that only traffic to/from the Download Station app goes through the VPN.
Edit. Called Download Station download manager.
Download Manager? Or Download station?
The answer is no. You can either put your whole NAS behind the VPN (which is what I do) or run a docker container with VPN support for Transmission, which will put only Transmission behind the VPN but leave the rest of your NAS alone.
This is a job for a router. I have several WAN interfaces such VPN’s. The router will select which WAN Interface to use for outgoing packets based on policies.
https://en.wikipedia.org/wiki/Policy-based_routing “Policy-based routing may also be based on the size of the packet, the protocol of the payload, or other information available in a packet header or payload.” [My emphasis]
You could probably do this on the NAS with networking tools but it’s simple in an enterprise quality router.
Download Station, sorry, got the name wrong. I will research the option of using a docker container with VPN support, as I am not interested in putting the whole NAS behind the VPN. Any pointers as to where to look for information on how to do this?