Asus-Merlin: Route vpn client to connected VPN server? [OpenVPN]

[Ritte]

Hi, I have an ac68 that acts as a openvpn server. At my paretns house I have a ubuntu server that has openvpn server too.
Beside using ac68 as a vpn server, its connected as a client to the ubuntu server, with the following redirect rule:

• 192.168.1.0/24 192.168.2.0/24 VPN
• Flow chart: LAN -> AC68 -> Ubuntu Server -> LAN

Using this all my devices connected through ac68 lan can access the private subnet at the ubuntu server, but the normal internet traffic isn't redirected. Great!

Now I want to be able to connect my iphone on 3g to the ac68 server through vpn. By using this redirect rule, i hoped that I could access the ubuntu server too:

• 10.8.0.0/24 192.168.2.0/24 VPN
• Flow chart: VPN-> AC68 -> Ubuntu server -> LAN

This doesnt work. I can't access the ubuntu server when I'm on my phone connected to my ac68 through vpn.

Is this possible? And how if so?

Thanks!