Date: Thu, 28 Jun 2001 18:53:15 -0600 From: Wes Peters <wes@softweyr.com> 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? Message-ID: <3B3BD17B.4DB9171B@softweyr.com> 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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