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[Acronym] for __N__etwork __A__ddress __P__ort __T__ranslation. A derivative of [NAT], NAPT is all about taking incoming requests to an IP address and rewriting them to all go to a single IP address and port, based on what port they are aimed at. This leads to the common name of PinHoling (you poke a pin hole in your firewall, allowing all access on a certain port to statically map to a (potentially different) port on an internet machine, such as a public web or email server. NAPT is defined in RFC:3022. Because NAPT deals with ports, it only applies to [TCP], [UDP] and [ICMP].
4 pages link to
NAPT
:
NAT
PinHoling
PAT
DSL-302G
