Re: Any tool or theorical method on detecting number of computer behind a NAT box?

On Mon, 7 Apr 2008 23:51:55 +0800 (CST) Joe Shen <joe_hznm@yahoo.com.sg> wrote:

hi,

Sharing internet access bandwidth between multiple computers is common today.

Usually, bandwidth sharer bought a little router with NAT/PAT function. After connecting that box to a ADSL/LAN access link, multiple computer could share a single access link.

I heard some company provide prdouct for detecting number of computers behind NAT/PAT box.

Is there any paper or document on how such product work? where could I fint them ?

THere was a paper of mine from a few years ago: http://www.cs.columbia.edu/~smb/papers/fnat.pdf --Steve Bellovin, http://www.cs.columbia.edu/~smb