[e2e] Internet Draft and survey on P2P in the presence of NAT

Henning Schulzrinne hgs at cs.columbia.edu
Tue Apr 8 19:20:36 PDT 2003


There's been a lot more recent work on NAT traversal in the SIP working 
group and surroundings. See, for example, the recent ICE draft by J. 
Rosenberg that combines a number of NAT traversal techniques.

Bryan Ford wrote:

> Hi end2enders,
> 
> I have been working on collecting and consolidating information about making 
> peer-to-peer applications work seamlessly with NAT (you know, that evil 
> anti-end2end technology we all love to hate :)), and have just released the 
> first version of an Internet Draft on which I would be grateful to hear your 
> comments:
> 
> 	http://www.pdos.lcs.mit.edu/~baford/nat/draft-ford-natp2p-00.txt
> 
> In addition, to get a better sense of the compatibility of these techniques 
> with widely deployed NATs, I wrote a short NAT tester program that basically 
> works like a simple STUN (rfc3489) client and outputs relevant stats, and a 
> friend set up an on-line database to collect results.  If you are behind or 
> have access to a NAT that isn't already listed in the database, we'd greatly 
> appreciate if you could run the client and enter the results you get.  The 
> program (source, Linux binary, FreeBSD binary) and database are at:
> 
> 	http://www.pdos.lcs.mit.edu/~baford/nat/
> 
> Thanks for your time!
> Bryan




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