From owner-freebsd-questions Tue May 29 6:22:32 2001 Delivered-To: freebsd-questions@freebsd.org Received: from clmboh1-smtp3.columbus.rr.com (clmboh1-smtp3.columbus.rr.com [65.24.0.112]) by hub.freebsd.org (Postfix) with ESMTP id D882D37B42C for ; Tue, 29 May 2001 06:22:27 -0700 (PDT) (envelope-from wmoran@iowna.com) Received: from iowna.com (dhcp065-024-023-038.columbus.rr.com [65.24.23.38]) by clmboh1-smtp3.columbus.rr.com (8.11.2/8.11.2) with ESMTP id f4TDJGk06009; Tue, 29 May 2001 09:19:16 -0400 (EDT) Message-ID: <3B13A241.FE7EDA75@iowna.com> Date: Tue, 29 May 2001 09:21:05 -0400 From: Bill Moran X-Mailer: Mozilla 4.76 [en] (X11; U; FreeBSD 4.3-STABLE i386) X-Accept-Language: en MIME-Version: 1.0 To: Brent Bailey Cc: freebsd-questions@FreeBSD.ORG Subject: Re: NAT question References: <002f01c0e83d$9b8e0980$3ab4a8c0@kronos> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Brent Bailey wrote: > > IM running a FBSD 4.3 box as a firewall gateway w/ PPPoE & NATd & > IPFW...anyway everything seems to be ok > although i keep getting an error message saying, > > "natd[109] failed to write packet back permission denied" > > can anyone give me an idea what this means ?? You've got some sort of loop in the firewall/NAT system. Basically, NAT is translating a packet that's destined for the local machine, then getting itself into trouble trying to deliver the packet. (at least, if I remember correctly ...) My experience with this is it's caused by nonsesnse broadcast traffic. You can eliminate it by tightening down the firewall to ignore a lot of traffic (stuff like SMB broadcasts) It doesn't seem to hurt performance noticably, though. -Bill To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message