Re: Explicit source port mapping

[Eric Leblond <eric@inl.fr>]

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Hi,

I've never heard about such a feature.

Just a simple question :
	Why do you want to do this ?

BR,

Le mercredi 01 novembre 2006 à 16:24 +0100, Andreas Micklei a écrit :
> Greetings,
> 
> I have an unusual (maybe?) request. I have several private IPs (192.168.x.x) 
> behind a Linux gateway. All are NATed to the Internet. Now I want to 
> explicitely map each private IP to a fixed source port range on the WAN 
> interface of the gateway.
> 
> Example:
> 
> Connections from 192.168.42.1 are mapped to source ports 1024 - 1279
> Connections from 192.168.42.2 are mapped to source ports 1280 - 1343
> Connections from 192.168.42.3 are mapped to source ports 1344 - 1408
> ...
> 
> Quetions 1: Can netfilter do this for me?
> Question 2: If not, would it be easy to implement, and can someone give a 
> suggestion where I should start? - Or even better: Has someone already 
> implemented this?
> 
> Sorry if my question sounds stupid. In the HOWTOs I could only find implicit 
> source port mapping. Also I did not find a search interface for the 
> mailinglist. So if this question is already answered, pointers are 
> appreciated.
> 
> regards,
> Andreas Micklei
> 
> 
-- 
Eric Leblond <eric@inl.fr>
INL

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