The .7z extension indicates the file was compressed using , a popular open-source archiver known for high compression ratios and strong encryption. To access the tool, you will need a utility like 7-Zip or WinRAR .
The primary function of this utility is to diagnose NAT behavior to ensure "Full Cone" (often called or Open NAT ) for optimal gaming performance. NAT Type Detection : Identifies whether your network is: Nat.7z
: Only allows traffic from external hosts the internal user has previously contacted. Nat.7z
: Uses STUN (Session Traversal Utilities for NAT) servers to discover the public IP address and port mapping assigned by your router. Nat.7z
: Players with "Open" NAT can host games and connect to any other player.