IPv4 Connectivity Access in the Context of IPv4 Address Exhaustion: Port Range based IP Architecture

Document Type Expired Internet-Draft (individual)
Authors Mohamed Boucadair  , Pierre Levis  , Gabor Bajko  , Teemu Savolainen 
Last updated 2009-07-03
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This memo proposes a solution, based on fractional addresses, to face the IPv4 public address exhaustion. It details the solution and presents a mock-up implementation, with the results of tests that validate the concept. It also describes architectures and how fractional addresses are used to overcome the IPv4 address shortage. A comparison with the alternative Carrier-Grade NAT (CG-NAT) solutions is also elaborated in the document. The IPv6 variant of this solution is described in a companion draft.


Mohamed Boucadair (mohamed.boucadair@orange-ftgroup.com)
Pierre Levis (pierre.levis@orange-ftgroup.com)
Gabor Bajko (Gabor.Bajko@nokia.com)
Teemu Savolainen (teemu.savolainen@nokia.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)