On Wed, 2007-02-21 at 00:52 +1300, Perry Lorier wrote:
(Sorry for the late reply to this email, I've been doing this in my spare time and it takes at least 4 hours to processes these files)
For the majority of people? No. End-to-End has been gone for a long time, as you correctly point out.
Many people run their own NAT's. That means you can configure your own port forwards, and your modem can support UPnP. People may also be avoiding nat by using USB/Internal modems.
So, how many people actually do more than just "email and web"?
Well, I ran an analysis of DSL customers[1] over the space of 24 hours [4] to see how many different protocols people were using. For each IP I kept track of the number of unique "server ports"[2] were used.[3]
10% of people use =< 5 protocols, 20% use =< 6 30% use =< 11 40% use =< 23 50% use =< 35 60% use =< 58 70% use =< 138 80% use =< 427 90% use =< 2144
At a guess, people that have more than 20 "server ports" are probably involved in some kind of p2p (which usually doesn't interact well with NAT).
Heres some of the top port groups that people use:
Interesting analysis Perry. What makes you certain that actual people are generating use on these ports vs trojans, worms and the like? jamie