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Date:      Thu, 27 Jul 2000 09:49:56 +0200
From:      Pavol Adamec <pavol_adamec@tempest.sk>
Cc:        freebsd-security@freebsd.org
Subject:   Re: ipf or ipfw (was: log with dynamic firewall rules)
Message-ID:  <397FE9A4.1C1B9215@tempest.sk>
References:  <Pine.BSO.4.21.0007270323100.3504-100000@superconductor.rush.net>

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Siobhan Patricia Lynch wrote:
 
> ipfilter has to be flushed and reloaded, I don;t have that luxury
> 
> ipfw I can add rules on the fly.
> 

Sorry, but ipf can add rules on the fly too.
As for ipf and ipfw - their capabilities are almost equal. The are
differencies - ipnat is done within the kernel space, natd is running
in user space. Running in user space in this case means that the
translation slower. BUT you can control where you want your translation
done - before, in-the-middle-of or at the end of the filtering rules.
There's no such choice with ipnat. And more, and more such details. 

Paul


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