What policy type is selected for a Route-based VPN security configuration?

In a Route-based VPN security configuration, the selected policy type is indeed the Tunnel Interface. This is because route-based VPNs utilize virtual tunnel interfaces to establish secure connections over the internet, allowing for the encapsulation of traffic within a secure IPsec tunnel. The Tunnel Interface acts as a point-to-point interface that can be treated like a traditional interface in the routing table, enabling routing protocols to be used efficiently within the VPN.

In this setup, the VPN behaves similarly to a traditional routed network, where traffic can be sent through the tunnel interface as if it were a standard network interface. This allows for greater flexibility in routing and is especially useful in scenarios where dynamic routing protocols are needed, as it integrates well with routing decisions based on the policies set on the firewall.

This approach contrasts with other policy types, such as Access Policy, which is not specifically related to VPN configuration but rather to controlling traffic based on rules, or Pre-Shared Key, which is a method of authentication rather than a policy type itself. Similarly, while Dynamic Routing Policy involves protocols that can be used in conjunction with VPNs, it is not specifically the configuration type chosen for a Route-based VPN. Thus, the Tunnel Interface is the most appropriate answer for establishing a Route-based VPN