Matthew Toseland wrote: > Some feedback from #azureus : > > <The_8472> nat traversal + UPnP + NAT-PMP can solve about 80% of the > NATed problems > <toad_> you have any quantitative numbers btw? > <The_8472> nope > <The_8472> it's 2nd-hand info i got from the devs > > Anyone got anything more concrete?
There are some useful stats in this paper: http://nutss.gforge.cis.cornell.edu/pub/imc05-tcpnat.pdf Here's the raw data: http://www.guha.cc/saikat/stunt-results.php It looks like about 70% of deployed NATs are full cone, so 81% of NAT-to-NAT connections should work without UPnP, NAT-PMP or manual port forwarding. Cheers, Michael
