The 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,
Scott
On 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
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