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Date:      Mon, 8 Mar 2004 20:28:11 -0800 (PST)
From:      darrenr@FreeBSD.ORG (Darren Reed)
To:        Tim Robbins <tjr@freebsd.org>
Cc:        src-committers@FreeBSD.org
Subject:   Re: cvs commit: src/sys/contrib/pf/net if_pflog.c if_pflog.hif_pfsync.c src/sys/contrib/pf/netinet in4_cksum.c
Message-ID:  <20040309042811.97EF816A4CF@hub.freebsd.org>
In-Reply-To: <20040226080517.GA29763@cat.robbins.dropbear.id.au>

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In some mail I received from Tim Robbins, sie wrote
> 
> You forgot about ip6fw. I agree that having 4 firewalls in the base system
> is somewhat excessive, but not importing pf is not a solution to the
> problem of having too many firewalls. What I'd like to see is ipfw,
> ipfilter and ip6fw implemented in terms of the pf kernel code, then
> eventually phased out after a few releases. With the exception of dummynet,
> this should be fairly straightforward.

What you're assuming is that this is possible.

If you were familiar with the code for all three, you'd know it isn't.

I have, however, tried to architect IPfilter in such a way that it
could use the rule syntax for ipfw2 at some point in the future IF
the ipfw2 microcode guff is properly organised (I believe I had a
long email thread with Luigi about this for some modest progress but
more is really needed to use it.)  Then there's the question of
Checkpoint's patent...

Darren



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