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Date:      Sun, 30 Jun 2013 17:22:46 +0700
From:      Eugene Grosbein <eugen@grosbein.net>
To:        Sami Halabi <sodynet1@gmail.com>
Cc:        freebsd-net@freebsd.org, "Paul A. Procacci" <pprocacci@datapipe.com>, freebsd-ipfw <freebsd-ipfw@freebsd.org>
Subject:   Re: DNAT in freebsd
Message-ID:  <51D006F6.6060809@grosbein.net>
In-Reply-To: <CAEW%2BogZ=a6LZavOtcb_egNWFQ8bJP0gzP6pc90tu1dcWC9K80A@mail.gmail.com>
References:  <CAEW%2BogYp61U2zjicksYekSdfmLLZh5g9QM3GUg4n16ZbudVZtg@mail.gmail.com> <20130629002959.GB20376@nat.myhome> <CAEW%2BogZ=a6LZavOtcb_egNWFQ8bJP0gzP6pc90tu1dcWC9K80A@mail.gmail.com>

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On 29.06.2013 13:50, Sami Halabi wrote:
> I think I was misunderstood...
> Here is the situation i want to handle:
> My box is a router that handles several /24 behind.
> One of my links (em0) is connected to a private network 192.168.0.1 is me,
> my neighbour is 192.168.0.2.
> I want to make that any connection comes to 192.168.0.1  to go to ip
> 193.xxx.yyy.2 using specific public ip 84.xx.yy.1
> And packets comming to my public 84.xx.yy.1 ip to be trsnslated as came
> from 192.168.0.1 and sent to 192.168.0.2/or ant other ips
> behind(192.168.1.xx/24).
> 
> Hope that makes it clearer, and I appreciate any help.

You need to setup 2 ipfw nat instanses, one to translate source IPs,
another to translate destination IPs (this one needs "reverse" mode).





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