Hi,
On this layout below, should the client be on the same IP range from the server (Cloud Gateway), isn't?
Checking on https://www.dnscheck.tools, the Client IP is still the same as when the Astrowarp was off
The client is off-line on this screenshot, but consider it was on 
Your Brume2 does not use the cloud gateway, you need to connect them as well.
When I drag and drop Brume to the gateway, a message pop-up saying I need to pay, but according to Astronet page, the Free Account has 10Gb free, that I never used.
There are some tutorials of AstroWarp , maybe it would help you Overview - AstroWarp Docs
The free network can realize remote access to the router by the client. For example, if you want to access the NAS connected to the router, you can use the free network.
Can you describe your needs so that we can give you better suggestions?
When the client (Mobile Phone) is connected to the router (at home), can it get the IP of my ISP (or from the Astrowarp gateway), similar to what happens when using a VPN?
As Tailscale do, but without the 10Gb/month limit?
I think this scenario will suit you.
Thanks.
It seems it's not available for the free plan, but thanks anyway 
