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)