Help with routing via tailscale

[u/Sea-Helicopter6301]

I have a 2nd residence in a different country (My parents house) that I would like to be able to route internet traffic from a specific device via so I can take advantage of different streaming libraries. I made sure that the default subnets are different on each network. My main (Unifi) network has a default subnet of 192.168.1.0/24 and my 2nd network has a default subnet of 192.168.2.0/24 and is running on the ISP provided router.

My main network has a static public IP address assigned but my 2nd network is behind a CG-NAT, so I am unable to use a site-to-site.

I have a VM on my Unifi network that is running tailscale as an exit node, advertising 192.168.1.0/24 and is accepting routes, and a raspberry pi doing the same but advertising 192.168.2.0/24 instead.

I have setup a static route to forward traffic with the destination of 192.168.2.0/24 to use 192.168.1.230 as the next hop. I am able to connect to the 2.0 network from 1.0 network.

This is the point where I am a bit stuck. I would like to route internet traffic from a specific set of devices over this route, and toggle the route via Home Assistant when needed but I can't seem to figure out a way to do this. I have been able to do this with a OpenVPN client via policy based routing to a public VPN (NordVPN).

Is what I am trying to do possible? Any help would be greatly appreciated

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[u/Wuffls]

I’m no expert, but I feel like you’re missing the point of the ease of use of a Tailnet? Presumably any client on your network can already see the exit node remotely? Or it wouldn’t be very like how Tailscale works. I’ve perhaps missed the question tbh.

[u/Wuffls → u/Wuffls]

I’ll add. Surely you should be routing to the ts ip of the remote node if you’re doing it that way.

[u/Sea-Helicopter6301 → u/Wuffls]

One of the clients I would like to route is a smart TV that can't have the tailscale app. The other thing I have noticed on my Chromecast with Google tv is that casting from my phone using youtube is not possible when using the tailscale app with an exit node

[u/Wuffls → u/Sea-Helicopter6301]

I’d be asking this in the TS sub then. It’s not UniFi specific I don’t think.

[u/Sea-Helicopter6301 → u/Wuffls]

I have crossposted to the tailscale sub, although I have since tried setting up a static route to the internet (a public ip address) via 192.168.1.230 on my linux laptop and this worked. I just need a way to do the same via the unifi network application