Our paper can be found at: http://download.peerialism.com/papers/NATCracker.pdf
Or on IEEE Xplore: http://ieeexplore.ieee.org/Xplore/login.jsp?url=http://ieeexplore.ieee.org/iel5/5235208/5235209/05235278.pdf%3Farnumber%3D5235278&authDecision=-203 The version included in the first link contains some corrections on the NAT type combinations table, I strongly suggest to get that one. On top of that, I would recommend not to open the link with the default pdf Chrome plugin as strange artifacts appear in the text, whereas in all other pdf readers that does not happen. Regarding "NAT type discovery", since this thread has generated so much interest in our approach, I started to isolate the code which carries out all the steps for the discovery from the rest of the NAT traversal library my colleagues and me are working on. That part of the library has reached quite a stable state and I'll make sure to publish it in the next days. On Jan 25, 2011, at 10:06 PM, Serguei Osokine wrote: > On Monday, January 24, 2011 Roberto Roverso wrote: >> I'm the author of the paper mentioned in this thread. > > Great! Do you know some place where this paper is available? > The link from google/peerialism does not work at least since > Friday, Jan 21: > > http://www.peerialism.com/download/Roverso-NATCracker.pdf > > Thank you - > S.Osokine. > 25 Jan 2011. > > -----Original Message----- > From: p2p-hackers-boun...@lists.zooko.com > [mailto:p2p-hackers-boun...@lists.zooko.com] On Behalf Of Roberto Roverso > Sent: Monday, January 24, 2011 1:04 AM > To: p2p-hackers@lists.zooko.com > Subject: [p2p-hackers] NAT traversal state of the art > > I'm the author of the paper mentioned in this thread. > > I read the patent application and, however the idea of NAT type discovery is > present and common to our paper (as to others: the STUN RFC above all), the > patent describes just few types (6) of NAT behavior. In our paper, we define > as many as (27). On top of that, the paper outlines how to carry out hole > punching in each specific combination of NAT types (NAT type A against NAT > type B). Although many details are omitted in the document due to space > constraints, the description is probably enough for people to start implement > state of the art NAT traversal logic in their p2p applications. Results from > our test network show that the connection establishment success rate is very > high using this model (~ 90%). > > Regarding open source implementations of updated NAT traversal techniques, I > could't find any. Most of the libraries still implement the old STUN and TURN > techniques. > However, we are working on our Java-based software library which supports > both NAT Traversal (UDP and TCP) and congestion control techniques like > LEDBAT. We hoper to make it available as open source in the coming months. > > We do currently provide a small software in order for people to test their > implementations of NAT Traversal against our model. The software provides a > small NAT box emulator which implements the aforementioned 27 types. I'll be > glad to provide support for anybody who wants to use it. > http://code.google.com/p/natcracker/ > > -------------------------------------------------------------------- > Roberto Roverso > Researcher & Project Manager, Peerialism Inc. > Ph.D. Student, Royal Institute of Technology (KTH) > E-mail: robe...@peerialism.com / rove...@kth.se > > _______________________________________________ > p2p-hackers mailing list > p2p-hackers@lists.zooko.com > http://lists.zooko.com/mailman/listinfo/p2p-hackers > > Confidentiality notice: This message may contain confidential information. > It is intended only for the person to whom it is addressed. If you are not > that person, you should not use this message. We request that you notify us > by replying to this message, and then delete all copies including any > contained in your reply. Thank you. > _______________________________________________ > p2p-hackers mailing list > p2p-hackers@lists.zooko.com > http://lists.zooko.com/mailman/listinfo/p2p-hackers -------------------------------------------------------------------- Roberto Roverso Researcher & Project Manager, Peerialism Inc. Ph.D. Student, Royal Institute of Technology (KTH) E-mail: robe...@peerialism.com / rove...@kth.se
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