I want to force the client to use its own internet gateway. In my scenario, the client must definitely use its own internet. Some clients can send all traffic over VPN and the internet can be accessed through the VPN server's internet. I prevent this situation with security rules, but this time the internet cannot be accessed in any way. Even if routing is done to access the internet via VPN, my VPN server must not allow this and force it to use its own gateway. How do I do this?