Date: Fri, 12 Oct 2001 23:28:18 -0700 From: "Crist J. Clark" <cristjc@earthlink.net> To: Jason DiCioccio <geniusj@bluenugget.net> Cc: "Thomas T. Veldhouse" <veldy@veldy.net>, David Kelly <dkelly@hiwaay.net>, Alfatrion <alfatrion@cybertron.tmfweb.nl>, "Maine LOA List Admin (Brent Bailey)" <brentb@loa.com>, "Hartmann, O." <ohartman@klima.physik.uni-mainz.de>, freebsd-stable@FreeBSD.ORG, freebsd-questions@FreeBSD.ORG Subject: Re: IPFW or IPFILTER? Message-ID: <20011012232818.J6274@blossom.cjclark.org> In-Reply-To: <B67B2D46-BFA0-11D5-B5AB-0003930352A4@bluenugget.net>; from geniusj@bluenugget.net on Fri, Oct 12, 2001 at 11:08:25PM -0700 References: <20011012203938.E6274@blossom.cjclark.org> <B67B2D46-BFA0-11D5-B5AB-0003930352A4@bluenugget.net>
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On Fri, Oct 12, 2001 at 11:08:25PM -0700, Jason DiCioccio wrote:
> On Friday, October 12, 2001, at 08:39 , Crist J. Clark wrote:
> > On Fri, Oct 12, 2001 at 01:11:17PM -0500, Thomas T. Veldhouse wrote:
> >> FTP works in passive and active mode using IPNat.
> >>
> >> map dc1 192.168.0.0/24 -> www.xxx.yyy.zzz/32 proxy port ftp ftp/tcp
> >> map dc1 192.168.0.0/24 -> www.xxx.yyy.zzz/32 portmap tcp/udp 1025:60000
> >
> > Except when the ftp proxy is panicing the kernel. When non-ftp data
> > was passed over port 21, up until recently, it could easily crash your
> > system.
>
> I've never seen this behavior before actually.. When was this fixed? Was
> it IPFilter or just IPFilter on FreeBSD?
I don't think it was platform specific. I recall the discussion from
the IPFilter list, ipfilter@coombs.anu.edu.au. Look at list archives
for more info. I believe Kazaa (which, IIRC, does some funky HTTP-like
protocol on port 21 by default) was the particular application causing
people headaches.
--
Crist J. Clark | cjclark@alum.mit.edu
| cjclark@jhu.edu
http://people.freebsd.org/~cjc/ | cjc@freebsd.org
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