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Date:      Sun, 11 Feb 1996 16:07:35 +0000 ()
From:      Pedro A M Vazquez <vazquez@IQM.Unicamp.BR>
To:        terry@lambert.org (Terry Lambert)
Cc:        ejs@bfd.com, ptroot@uswest.com, mc7953@mclink.it, questions@freebsd.org
Subject:   Re: IP Masquerading
Message-ID:  <199602111607.QAA26425@kalypso.iqm.unicamp.br>
In-Reply-To: <199602052232.PAA00445@phaeton.artisoft.com> from "Terry Lambert" at Feb 5, 96 03:32:02 pm

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Terry Lambert said:
> 
> > Actually, this isn't what he's talking about.  The Linux implementation 
> > of IPFW includes some kernel mods that let a firewall translate 
> > (masquerade) "outgoing" requests, so that the packets have the firewall's 
> > IP address, and then retranslates the responses so that they get to the 
> > correct machine/port.
> 
> It's called "proxy".
> 
> It's not "masquerading" because you can't set up incoming FTP requests
> (for instance) to one of the proxied machines.
> 
> 
> The "correct BSD way" of implementing this would be to provide a packet
> forwarding daemon that used the tunneling device to do it's thing.
> 
It seems the latest ip-filter version (3.0.2) comes with NAT to make
something like this ( http://coombs.anu.edu.au/ăvalon/ip-filter.html)

Pedro



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