Strict NAT
Definitions
Strict NAT is a NAT Traversal and P2P Gaming term for a gaming and console label for NAT behavior that makes direct multiplayer connections difficult or impossible without relays or port configuration. It helps people and agents name the signal, source, and safe next step without pretending an automation, campaign, DNS record, RFC, or network path did more than the evidence shows. Source context: RFC 6598 shared address space; RFC 8445 ICE; RFC 1918 private address space.
“Strict NAT was the bouncer that made every friend wait outside the party.”
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