In which scenario can you view a visitor's real IP address in IIS logs?

To view a visitor's real IP address in IIS logs, installing the "F5XForwardedFor" extension is the correct approach. This extension helps to append the original client's IP address to the request headers, making it possible for IIS to log the real IP address instead of the IP address of the proxy or load balancer that might be in front of the server.

In web environments where proxies or load balancers are employed, the client's real IP address can often be masked. The "F5XForwardedFor" extension specifically addresses this issue by ensuring that the original IP address is captured and included in the logs, allowing for more accurate tracking and analytics regarding visitor traffic.

This functionality is critical for debugging, traffic analysis, and security monitoring, as knowing the real IP addresses allows administrators to take more informed actions based on user behavior and access patterns.