Windows Clients Registering Home Router Adapter Assigned IP in DNS

I have vpn users running both Win8.1 and Win10.

Forticlient version is 6.0.10, managed by EMS server

Clients run SSL vpn and IPSec connections.

On the EMS server there is a setting 'Prefer SSL VPN DNS'

If unchecked, SSL clients only register the Vpn IP address in DNS.

With it checked, SSL clients also register their home router IP address.

Question, for IPSec connections is there a similar setting that performs the same behaviour?

We don't want IPSec users home IP addresses registering within DNS.

Thanks