[103577] in North American Network Operators' Group
Re: Any tool or theorical method on detecting number of computer
daemon@ATHENA.MIT.EDU (Steven M. Bellovin)
Mon Apr 7 12:49:20 2008
Date: Mon, 7 Apr 2008 16:39:52 +0000
From: "Steven M. Bellovin" <smb@cs.columbia.edu>
To: Joe Shen <joe_hznm@yahoo.com.sg>
Cc: NANGO <nanog@merit.edu>
In-Reply-To: <165955.60284.qm@web76314.mail.sg1.yahoo.com>
Errors-To: owner-nanog@merit.edu
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
