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The Effect of NATs on P2PSIP Overlay Architecture

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Dr. Eric C. Cooper , Philip Matthews
Last updated 2007-03-06
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This paper explains the problems created by Network Address Translators (NATs) in Peer-to-Peer (P2P) overlays and recommends some NAT traversal techniques appropriate for P2PSIP networks. Two P2PSIP overlay architectures that accommodate the presence of NATs are described and analyzed. The first is the super-peer scheme used in a number of p2p file-sharing systems today. The second is a scheme where all peers play an equal role in the overlay.


Dr. Eric C. Cooper
Philip Matthews

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