> > "is anyone aware of any estimations of fraction of Internet users
> > who are behind firewalls and NATs?"
> So, this question piqued my interest. Figured I'd take a
> bash at estimating NAT usage using the online QuakeIII community
> as a reference. Cobbled together two Q3 servers, logged client
> port numbers, and looked for NAPT 'fingerprint' of clients coming
> in on unexpected UDP ports (Q3 client side seems to always use
> 27960 if not mangled by NAPT). Using an indirect, and somewhat
> arm-wavy method I estimate between 18 and 19% of the players
> on my servers were behind NAT boxes. A bit more discussion is
How about for business users? If the assumption can be made
that most Q3 players are home based (which would probably
have a lower incidence of NATs) ~20% sounds high. Of
course that could be because of sevice providers.
But does anyone have a better idea for business users?
Kyle Lussier
www.AutoNOC.com