From owner-freebsd-net  Thu Jun 28 17:48:47 2001
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Date: Thu, 28 Jun 2001 18:53:15 -0600
From: Wes Peters <wes@softweyr.com>
Organization: Softweyr LLC
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To: Dag-Erling Smorgrav <des@ofug.org>
Cc: Ruslan Ermilov <ru@FreeBSD.ORG>, Deepak Jain <deepak@ai.net>,
	net@FreeBSD.ORG, hackers@FreeBSD.ORG
Subject: Re: fastforwarding?
References: <GPEOJKGHAMKFIOMAGMDICEOJDGAA.deepak@ai.net>
		<20010626093545.D49992@sunbay.com> <3B3AB4F8.184A2EFE@softweyr.com> <xzp1yo4wdjh.fsf@flood.ping.uio.no>
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Dag-Erling Smorgrav wrote:
> 
> Wes Peters <wes@softweyr.com> writes:
> > The description there isn't very forthcoming.  fastforwarding caches
> > the results of a route lookup for destination addresses that are not
> > on the local machine, and uses the cached route to short-circuit the
> > normal (relatively slow) route lookup process.  The packet flows
> > directly from one layer2 input routine directly to the opposing
> > layer2 output routine without traversing the IP layer.
> 
> And more importantly, without traversing ipfw or ipfilter.  In other
> words, don't use this on a firewall.

Excellent point, grashopper.  Perhaps we should collect this verbiage
into the man page?  Or, heaven forbid, stuff it into a comment in the
code somewhere?

Nah, that would be blasphemy.

-- 
            "Where am I, and what am I doing in this handbasket?"

Wes Peters                                                         Softweyr LLC
wes@softweyr.com                                           http://softweyr.com/

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