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Date:      Sat, 6 Sep 2008 21:41:55 +0200
From:      <secucatcher@free.fr>
To:        "David DeSimone" <fox@verio.net>
Cc:        freebsd-pf@freebsd.org
Subject:   Re: bidirectional NAT in PF?
Message-ID:  <20080906214155.52c6f2e7@desktop>
In-Reply-To: <20080906191403.GJ1949@verio.net>
References:  <1220706618.48c2813ab9cc6@imp.free.fr> <20080906204042.16491860@desktop> <20080906191403.GJ1949@verio.net>

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> Is this true, that PF supports bidirectional NAT?  That is, NAT of
> both the source and the destination IP in a connection, at the same
> time?
> 
> I had attempted this in the past but I could not find a rule syntax
> that would accomplish it.  Looking at the above, it appears that this
> may be possible because PF processes the rulebase twice for forwarded
> traffic; once on input, and again on output.  If the inbound packet
> matched a "rdr" rule, and the outbound matched a "nat" rule, this
> would accomplish bidirectional NAT?
> 
> Interesting technique, if it works.

"binat" was not working for u ?
binat on $ifext from private-ip to any -> public-ip



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