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Date: Fri, 15 Dec 2006 12:23:39 -0800
From: Julian Elischer <julian@elischer.org>
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Cc: freebsd-net@freebsd.org, freebsd-arch@freebsd.org
Subject: Re: Runtime control for the IPFIREWALL_FORWARD
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Andrey V. Elsukov wrote:
> Hi, All!
> 
> I want get the IPFIREWALL_FORWARD feature without a kernel rebuild.
> And use forwarding with the ipfw kld. It's possible to have this 
> functional in the base system?  If yes, then which is preferred way: 
> sysctl or kld?
> 

This introduces quite a bit of extra code into the path of IP packets.
Some people are very sensitive about anything that slows down that path.