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Date:      Wed, 30 Jun 1999 08:17:10 +1200
From:      "Dan Langille" <junkmale@xtra.co.nz>
To:        "Art Neilson, KH7PZ" <art@hawaii.rr.com>
Cc:        freebsd-questions@FreeBSD.ORG
Subject:   Re: ipfilter vs ipfw (was Re: tcp_wrappers)
Message-ID:  <19990629202026.CZWS3789.mta1-rme@wocker>
In-Reply-To: <3.0.6.32.19990629072506.03085c60@clients1.hawaii.rr.com>
References:  <19990629090654.GLCL112692.mta2-rme@wocker>

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On 29 Jun 99, at 7:25, Art Neilson, KH7PZ wrote:

> OK ipfilter does indeed look robust!!  Looks like it can do
> both natd and ipfw's job!!

Yes, but for NAT, ipf uses ipnat.  I wrote something about that at:

	http://www.freebsddiary.org/freebsd/ipnat.htm

> I have been slowly hardening my
> system with wrappers and ipfw, is ipfilter a complete replacement
> for ipfw?

Yes, you either use natd or ipf, not both.

> I'll have to look closely and compare the two.  Does
> it make sense given ipfilters capabilities to have both
> options IPFILTER and options IPFIREWALL  in the kernel
> at the same time?  Do I still need options IPDIVERT in order
> to use ipfilter's nat ?  I know natd needs it. 

OK.  Now you're asking me hard questions. <grin>

The installation process for IPFILTER will add in what it needs.  It won't 
remove what it doesn't.  So if you start with a "clean" kernel (no natd), 
you'll have what you need.

Checking my kernel, I don't have neither IPDIVERT nor IPFIREWALL.  But I 
do have IPFILTER and IPFILTER_LOG.  And I'm using ipf.
--
Dan Langille - DVL Software Limited
The FreeBSD Diary     - http://www.FreeBSDDiary.org/freebsd/
NZ FreeBSD User Group - http://www.nzfug.nz.freebsd.org/
The Racing System     - http://www.racingsystem.com/racingsystem.htm


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