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network and nmap doubt
From: Joao Daniel <joaodanielnevesss () hotmail com>
Date: Tue, 11 Oct 2011 15:39:00 -0300


I was figuring out if I can discoverer how many computers are behind a NAT. As far as I know a NAT works like state firewall by blocking some types of TCP packages.

I assumed that NAT will (of course?) block SYN packages. So, I tried to ran:

nmap -PA IP
nmap -sA IP

Both gave me just 1 Host Up. This is not true.  My questions are:

1) Why it did not work ?

2) Is it possible to do it ? (I want to find out how, dont tell, just say yes or no)
    2a) Will it need scripts?

3) Where I can look out for Nmap's scripts ?


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