On Thu, Dec 12, 2013 at 10:55:53PM +0100, Igor S wrote:
> Dear netfilter guru's
>
> I am trying to build a kind of a dynamic 1:1 SNAT gateway that is
> supposed to build every incoming IP to a unique internal IP in the
> internal network without any port mangling.
Then you should be using the NETMAP target.
NETMAP (IPv4-specific)
This target allows you to statically map a whole network of addresses onto another network of addresses. It can
only be used from rules in the nat table.
--to address[/mask]
Network address to map to. The resulting address will be constructed in the following way: All 'one' bits
in the mask are filled in from the new `address'. All bits that are zero in the mask are filled in from
the original address.
Phil
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