Which mode requires the specification of static routes for inbound client requests?

Single Gateway (Restricted) Mode requires the specification of static routes for inbound client requests because, in this mode, the access to network resources is strictly controlled and limited to specific routes. This means that when a client requests access to resources through the SonicWall Secure Mobile Access appliance, the system needs to know the exact paths for directing those requests.

Static routes in this context are necessary because they define the network paths that traffic can take when coming from clients to the internal resources. This configuration allows for enhanced security and control, as only designated routes are permitted, reducing potential exposure to unauthorized access. It ensures that the traffic flows through only the specified routes, enabling administrators to maintain tighter control over the network traffic and enforce security policies effectively.

In contrast, other modes like Dual Gateway or Single Gateway (Unrestricted) may not require defined static routes to the same extent because they offer a more flexible approach to routing and may dynamically adapt to the connected clients’ requests without requiring the same level of route specification.