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Date:      Wed, 1 Nov 2000 12:04:21 -0500 (EST)
From:      Kenneth Wayne Culver <culverk@wam.umd.edu>
To:        Ruslan Ermilov <ru@sunbay.com>
Cc:        cjclark@alum.mit.edu, freebsd-questions@FreeBSD.ORG
Subject:   Re: natd errors.
Message-ID:  <Pine.GSO.4.21.0011011203390.27725-100000@rac5.wam.umd.edu>
In-Reply-To: <20001101104131.A41690@sunbay.com>

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my oip and onet are real, and I still have the same problem... my iip and
inet are not real however..


=================================================================
| Kenneth Culver              | FreeBSD: The best NT upgrade    |
| Unix Systems Administrator  | ICQ #: 24767726                 |
| and student at The          | AIM: muythaibxr                 |
| The University of Maryland, | Website: (Under Construction)   |
| College Park.	              | http://www.wam.umd.edu/~culverk/|
=================================================================

On Wed, 1 Nov 2000, Ruslan Ermilov wrote:

> On Wed, Nov 01, 2000 at 12:27:36AM -0800, Crist J . Clark wrote:
> > On Wed, Nov 01, 2000 at 09:34:21AM +0200, Ruslan Ermilov wrote:
> > > On Tue, Oct 31, 2000 at 04:24:12PM -0500, Kenneth Wayne Culver wrote:
> > > > I just decided to make my firewall rules more strict, so I set my type to
> > > > "simple" in rc.conf... and now I get this error 
> > > > Oct 31 16:16:07 culverk natd[139]: failed to write packet back (Permission
> > > > denied)
> > > > 
> > > This happens when ipfw blocks packets written back by natd(8).
> > > 
> > > > my rules are the same rules as the "simple" specification in rc.firewall. 
> > > > 
> > > There was a problem with the stock "simple" firewall, which has now been
> > > fixed in 4.1-STABLE (/etc/rc.firewall, rev 1.30.2.5).
> > > 
> > > > Could someone tell me how to get rid of this error?
> > > > 
> > > Make sure your rc.firewall is rev 1.30.2.5 or higher.
> > 
> > Hmmm, I have a 1.30.2.6 file right here and it still looks to me like
> > it does not have a chance of working for your average natd(8) setup.
> > 
> If ${oip} and ${onet} are set to some real values, the "simple" firewall
> should work.  If they are set to some RFC1918 or draft-manning-dsua ones,
> this (of course) will not work, and you will have to either delete two
> "deny" rules (one before and one after the divert rule) that include your
> ${onet}:${omask} network.  Anything else?
> 
> 
> -- 
> Ruslan Ermilov		Oracle Developer/DBA,
> ru@sunbay.com		Sunbay Software AG,
> ru@FreeBSD.org		FreeBSD committer,
> +380.652.512.251	Simferopol, Ukraine
> 
> http://www.FreeBSD.org	The Power To Serve
> http://www.oracle.com	Enabling The Information Age
> 



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