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Date:      Mon, 3 Dec 2001 19:56:35 +0100
From:      Kjell <la3sg@sensewave.com>
To:        "Thor Legvold" <tlegvold@hotmail.com>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: Firewall rules (ipfw)
Message-ID:  <20011203195625.933A480D2@mail.broadpark.no>
In-Reply-To: <F86oqciWBXxbT9RVoP80001cf60@hotmail.com>
References:  <F86oqciWBXxbT9RVoP80001cf60@hotmail.com>

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On Monday 03 December 2001 3:18 pm, you wrote:
> Axel wrote:
> >What about ipfilter/ipnat combo for this setup ? ipfilter has way >better
> >performance than ipfw (or you should mess up the config) since it >doesn't
> >have
> >to copy packets from kernel to userland. At home (cable) I use it on a
> >
> > >486-33/
> >
> >16MB. I had natd running for a while but that caused a 100% cpu load >when
> >there was much traffic, now with ipnat it never gets higher then 20% ;->)
>
> I can look into it. I'd kind of like to get ipfw/nat working right since
> I've invested so much time in it - learning a copletely different ruleset
> syntax is not something I look forward to right now. I'd like to just get
> everything up and semi-ok, and then spend time tweaking here and there as I
> have time.  IPF and ipnat would also require a kernel rebuild, which isn't
> difficult or impossible, just more work when I already have little spare
> time.

IPFILTER is part of the GENERIC kernel, so no rebuild is required. You just 
have to enable it in the rc.conf file. I just switched from ipfw to ipfilter, 
and I found ipfilter easier to set up. Using the ipfiler/ipnat combination I 
was able to implement filters I never managed to get working under ipfw.....
mvh from Kjell

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