I am not sure where to post this so if this is not the correct forum please let me know where I should post it. First, I am a noob so please bear with me. The bottom line is can I set up a wireless vlan that always uses a vpn client setup on my router so that any device using that vlan will be connected to that vpn without conflicting with my normal Wi-Fi? My goal is to connect my Sonos Connect to the “wireless VPN” so that I can emulate being at my home in the USA not my home in Brazil. I don’t want to interfere with the “normal” Wi-Fi, I want just this one device to connect to the VPN Wi-Fi.

I currently have a guest network setup using the instructions I got from this website, »somethingkdotcom/main/?p=323 but I don’t really use it. I was thinking that I could use it for this project but I don’t know if I can or if it can how to do it.

Here is what I am working with:
Hardware: ASUS RT-AC68P/U B1
Firmware: Tomato Shibby Version 1.28.0000 -3.5-140 K26ARM USB AIO-64K

Can anyone provide suggestions and guidance?
Thanks