From owner-freebsd-questions@FreeBSD.ORG Mon Mar 31 05:47:40 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B538D37B404 for ; Mon, 31 Mar 2003 05:47:39 -0800 (PST) Received: from megs19.100mwh.com (megs19.100mwh.com [209.151.94.27]) by mx1.FreeBSD.org (Postfix) with ESMTP id DB3B343FBD for ; Mon, 31 Mar 2003 05:47:38 -0800 (PST) (envelope-from rseals@vdsi.net) Received: from [204.193.75.20] (helo=[10.200.10.14]) by megs19.100mwh.com with asmtp (Exim 3.36 #1) id 18zzdR-00056O-00 for freebsd-questions@FreeBSD.ORG; Mon, 31 Mar 2003 06:47:38 -0700 From: Ray Seals To: FreeBSD Questions Content-Type: text/plain Organization: Message-Id: <1049118454.310.3.camel@rsealslaptop.magellanhealth.com> Mime-Version: 1.0 X-Mailer: Ximian Evolution 1.2.0 Date: 31 Mar 2003 07:47:35 -0600 Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - megs19.100mwh.com X-AntiAbuse: Original Domain - freebsd.org X-AntiAbuse: Originator/Caller UID/GID - [0 0] / [0 0] X-AntiAbuse: Sender Address Domain - vdsi.net Subject: Arp cache needs clearing or machine stops responding X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 31 Mar 2003 13:47:43 -0000 I have a FreeBSD 5.0 box running IPFW in the OPEN configuration mode. Using natd to hide my inside addresses. The Internet connection will work fine for about 5 minutes and then stop. When I mean stop, the internal interface will allow me to ssh to it but when I try to ping something on the Internet, no response. The only way to get it to work again is to clear the arp cache for the default gateway entry. Currently I have a cron job setup to clear it every minute. Any ideas on why this would happen? -- Ray Seals