There were emails from Hamchi NAT guys before in this forum, you may want to look in the archives.Vikram Date: Sun, 19 Aug 2007 23:20:36 -0700From: [EMAIL PROTECTED]: [EMAIL PROTECTED]; [EMAIL PROTECTED]: Re: [p2p-hackers] Best NAT traversal optionsThe Skype paper confirms the NAT traversal traffic I observed on my network using ethereal.Arvind"Scott C. Best" <[EMAIL PROTECTED]> wrote: Arvind: Hello! Here's a paper from 2004 that discusses the Skype protocol:http://www1.cs.columbia.edu/~library/TR-repository/reports/reports-2004/cucs-039-04.pdf And this paper's my favorite one in general about NAT traversal:http://www.brynosaurus.com/pub/net/p2pnat/cheers,ScottOn Sun, 19 Aug 2007, arvind singh wrote:> I have heard of three approaches for NAT traversal>> 1. Stun> 2. Skype> 3. Hamachi>>> Does anyone know if Skype & Hamachi just use protocol based on STUN logic or are they doing anything smarter. Has anyone tried to decipher network traffic of Skype or Hamachi and found any interesting patterns/logic ?>> I tried to use network sniffer today on Skype traffic and found UDP packets to open large number of ports on my home router.>> Can anything be done using ICMP packets for NAT traversal?>> Look forward to good discussion on this topic>> Arvind Fussy? Opinionated? Impossible to please? Perfect. Join Yahoo!'s user panel and lay it on us.
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