From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pascal Hambourg <pascal.mail@plouf.fr.eu.org>
Subject: Re: Status open , filtered
Date: Fri, 23 Jun 2006 17:30:36 +0200
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Hello,

Fabio S. Silva a =E9crit :
> Hi all, i have a question, i make a firewall but when i make a scan
> using nmap it returns to me that the ports are in state filtered no
> close

What type of scan ? Which iptables target do you use to filter=20
connection attempts on ports you want to close ? DROP or REJECT (if so,=20
what type of reject) ?

My results with nmap 2.54 various TCP scans :
(better displayed with a fixed-sized font)

Target / TCP scan type  -T(connect) -S(syn)  -F(fin) -X(Xmas) -N(null)
DROP                     filtered  filtered   open     open     open
REJECT icmp-port-unreach  closed   filtered filtered filtered filtered
REJECT tcp-reset          closed    closed   closed   closed   closed