I would really really really like to have one device on my tailnet as the exitnode for all other devices on the tailnet. However, most VPNs make this really difficult. Is there any way to do this? I’ve read it’s possible with split-tunnelling, but ProtonVPN (which I use) doesn’t support that. I just installed Alpine Linux on my RPI 4b. And would like to use this as my exit node. Does anyone have any tips for how this could be done?
I never had to create a new TUN/TAP interface before, so I’m on the same boat as you. I’m brainstorming here with you and hoping for the best
But here is how to create a new tun interface:
https://www.baeldung.com/linux/create-check-network-interfaces
You’ll have to manually set some parameters to make it work, I guess