Hairpin NAT Loop

Hairpin NAT Loop is a NAT Traversal and P2P Gaming term for hairpin nat loop work that shows why a multiplayer lobby, voice call, or real-time app can fail when address translation hides peers behind layers of private or shared network space. 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.

“The team used Hairpin NAT Loop after the TURN relay became the adult in the room, and the public-safe part stayed open and the protected part stayed locked.”