Carrier Grade NAT
Definitions
Carrier Grade NAT is a NAT Traversal and P2P Gaming term for the service-provider deployment pattern for large-scale NAT used during IPv4 exhaustion, commonly associated with shared address space and NAT444 designs. 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.
“Carrier Grade NAT saved addresses, then the multiplayer match asked why every player looked like the same house.”
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