Which NAT feature redirects communication requests from one address and port to another?

Which NAT feature redirects communication requests from one address and port to another?

• A. Forwarding
• B. Masquerading
• C. Port Forwarding
• D. Tunneling

Answer: (A)

Port forwarding is the NAT feature that redirects incoming traffic from a specific external address and port to a designated internal address and port. This lets external clients reach a service inside your private network by mapping, for example, external port 80 on the router to an internal server like 192.168.1.10:80. Masquerading, on the other hand, translates internal addresses to the router’s external address for outbound connections, without directing inbound requests to a chosen internal host. Tunneling encapsulates data to traverse another network, which isn’t about redirecting to a different internal address and port. Simply “forwarding” is too vague in NAT terms, whereas port forwarding precisely defines the redirection you’re asking about.

Port forwarding is the NAT feature that redirects incoming traffic from a specific external address and port to a designated internal address and port. This lets external clients reach a service inside your private network by mapping, for example, external port 80 on the router to an internal server like 192.168.1.10:80.

Masquerading, on the other hand, translates internal addresses to the router’s external address for outbound connections, without directing inbound requests to a chosen internal host. Tunneling encapsulates data to traverse another network, which isn’t about redirecting to a different internal address and port. Simply “forwarding” is too vague in NAT terms, whereas port forwarding precisely defines the redirection you’re asking about.