Mapping of Address and Port

In this article, the impact that Mapping of Address and Port has had on different aspects of society will be addressed. Since its emergence, Mapping of Address and Port has aroused the interest of researchers, academics, specialists and the general public, due to its relevance in various areas. The influence of Mapping of Address and Port on culture, economy, technology, politics, among other aspects, will be explored with the aim of understanding its role in shaping the current world. In addition, it will be analyzed how Mapping of Address and Port has transformed the way people interact with each other and how they operate in their environment. Through this article, we aim to provide a comprehensive view of Mapping of Address and Port, allowing the reader to obtain a broader and clearer perspective on its impact and significance.
IPv6 transition mechanisms
Standards Track
Experimental
Informational
Drafts
Deprecated

Mapping of Address and Port (MAP) is a proposal that combines A+P port address translation with the tunneling of legacy IPv4 protocol packets over an ISP's internal IPv6 network.

MAP uses the extra bits available in the IPv6 address to contain the extra port range identifier bits of the A+P addressing pair that cannot be encoded directly into the IPv4 address, thus eliminating the need for "port routing" within the carrier network by leveraging the provider's own IPv6 rollout.

In effect, MAP is an (almost) stateless alternative to Carrier-grade NAT and DS-Lite that pushes the IPv4 IP address/port translation function (and therefore the maintenance of NAT state) entirely into the existing customer premises equipment IPv4 NAT implementation, thus avoiding the NAT444 and statefulness problems of carrier-grade NAT.

See also

RFCs

  • Mapping of Address and Port using Translation (MAP-T). doi:10.17487/RFC7599. RFC 7599.
  • Mapping of Address and Port with Encapsulation (MAP-E). doi:10.17487/RFC7597. RFC 7597.

References

Wikious
Boobota
Sagapedia