By default, OpenVPN automatically uses the server's settings for DNS and routing.
If you want to change these settings, go to Network > VPN > Open VPN > [Session Name] > IPv4. Here you can:
-
Deactivate Automatic DNS
-
Add Extra nameserver(s)
-
Add Extra search domains
-
Deactivate Automatic Routes
-
Deactivate VPN is the default route
Additionally, you can enable three custom routes in Network > VPN > Open VPN > [Session Name] > Route [0,1,2]. For each enabled route you can configure:
-
whether it is a Network Route or a Host Route
-
Network/Host IP
-
Network Mask (for Network Route only)
-
Optional: Gateway
-
Optional: Metric (a quality rating used for routing decisions, 0 being the best)