About: Address plus Port

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The Address plus Port (A+P) within the network layer communications protocol for Internet networking is an experimental approach to the IPv4 address shortage. It is a technique for sharing single IPv4 addresses among several users without using stateful network address translation (NAT) in the carrier network.

Attributes	Values
rdf:type	topical concept
rdfs:label	Address plus Port (en)
rdfs:comment	The Address plus Port (A+P) within the network layer communications protocol for Internet networking is an experimental approach to the IPv4 address shortage. It is a technique for sharing single IPv4 addresses among several users without using stateful network address translation (NAT) in the carrier network. (en)
foaf:depiction
dcterms:subject	IPv4 Routing software
Wikipage page ID	33115902 (xsd:integer)
Wikipage revision ID	1116811474 (xsd:integer)
Link from a Wikipage to another Wikipage	Internet Protocol Network address translation Communications protocol Stateless protocol IPv4 Routing software Transmission Control Protocol Mapping of Address and Port User Datagram Protocol Network layer IPv4 address exhaustion NAT44 IPv4 Residual Deployment (4rd) Customer premises equipment
sameAs	Address plus Port Address plus Port Address plus Port
dbp:wikiPageUsesTemplate	dbt:Ref_RFC dbt:Compu-network-stub dbt:Portal
thumbnail	wiki-commons:Special:FilePath/A+P.svg?width=300
has abstract	The Address plus Port (A+P) within the network layer communications protocol for Internet networking is an experimental approach to the IPv4 address shortage. It is a technique for sharing single IPv4 addresses among several users without using stateful network address translation (NAT) in the carrier network. Normal routing only uses the IPv4 address to identify which host an IP packet is destined for. A+P uses the destination TCP or UDP port in addition to the IP address to extend the range of available host addresses. Each host is assigned a unique range of ports which they set as the source port in outbound packets and which they use to receive inbound traffic. A+P is a stateless alternative to conventional stateful NAT, as the A+P gateway does not need to keep track of every TCP or UDP flow. However, it does require A+P aware software at the end-point, capable of limiting the range of port numbers used for originating connections to its allocated range, either in the end host, or, in the more common likely scenario, in the customer premises equipment own local NAT44 implementation. (en)
gold:hypernym	Technique
prov:wasDerivedFrom	wikipedia-en:Address_plus_Port?oldid=1116811474&ns=0
page length (characters) of wiki page	1554 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Address_plus_Port
is Link from a Wikipage to another Wikipage of	Network address translation AP Mapping of Address and Port IPv4 Residual Deployment IPv4 address exhaustion IPv6 transition mechanism A+P
is Wikipage redirect of	A+P
is Wikipage disambiguates of	AP
is foaf:primaryTopic of	wikipedia-en:Address_plus_Port

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