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Date:      Tue, 13 Nov 2001 13:28:48 +0100 (CET)
From:      =?iso-8859-1?q?Fabrizio=20Ravazzini?= <freefabri@yahoo.it>
To:        freebsd-isp@freebsd.org
Subject:   Nat Gateway Firewall rules
Message-ID:  <20011113122848.68215.qmail@web20104.mail.yahoo.com>

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Hello all,I'm in this situation:

               Internet
                  |
                  |
                +---------+
                |fBSD Nat |
                |     Gw  |
                +---------+
                  |     |
              +-----+   |
              |Http |   |
              |Proxy|   |
              +-----+   |
                  |     |
                  |     | 
                  LAN   |DMZ    +-------+
                        +-------|Web srv|
                        |       +-------+
                        |       +--------+
                        +-------|Smtp srv|
                                |pop3    |
                                +--------+

The internal LAN goes on Internet only for http,ftp.
The Lan also goes on the Dmz to use the Web srv &
smtp,pop3.
The Web,smtp,pop3 are accessible from Internet by
clients.
I must provide a strong Firewall set of rules on the
nat, where can I find some docs to do such a thing?

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