It’s generally recommended to avoid using the Virtual IP (VIP) to access the GUI for security reasons. The VIP is typically exposed to more traffic and potential attacks, so accessing the GUI through it could expose sensitive administrative interfaces. Instead, it’s safer to access the GUI from a management interface or VPN that’s not directly exposed to the internet. When you route all traffic from the Test subnet through the pfSense firewall using a specific LAN IP, you’re essentially creating a single point of failure. If you want to use the VIP (10.0.2.101) and still have the traffic appear to come from the load balancer’s public IP, you’ll need to ensure that the VIP is correctly configured for outbound NAT and that the load balancer is set up to handle outbound traffic from the VIP address.