From owner-freebsd-net Fri Dec 31 23:29:30 1999 Delivered-To: freebsd-net@freebsd.org Received: from d12lmsgate-3.de.ibm.com (d12lmsgate-3.de.ibm.com [195.212.91.201]) by hub.freebsd.org (Postfix) with ESMTP id 2564314CE9 for ; Fri, 31 Dec 1999 23:29:28 -0800 (PST) (envelope-from DRHAGER@de.ibm.com) Received: from d12relay01.de.ibm.com (d12relay01.de.ibm.com [9.165.215.22]) by d12lmsgate-3.de.ibm.com (1.0.0) with ESMTP id IAA24696; Sat, 1 Jan 2000 08:28:52 +0100 From: DRHAGER@de.ibm.com Received: from d12mta01.de.ibm.com (d12mta01_cs0 [9.165.222.237]) by d12relay01.de.ibm.com (8.8.8m2/NCO v2.06) with SMTP id IAA57972; Sat, 1 Jan 2000 08:28:51 +0100 Received: by d12mta01.de.ibm.com(Lotus SMTP MTA v4.6.5 (863.2 5-20-1999)) id C1256859.0029151B ; Sat, 1 Jan 2000 08:28:43 +0100 X-Lotus-FromDomain: IBMDE To: fgont@softhome.net Cc: freebsd-net@FreeBSD.ORG, mkc@Graphics.Cornell.EDU Message-ID: Date: Sat, 1 Jan 2000 08:28:42 +0100 Mime-Version: 1.0 Content-type: text/plain; charset=us-ascii Content-Disposition: inline Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org If you are a cracker, you try to take down the other system someway. Duplicate MAC-adresses (the hardware adress of your device) or duplicate IP adresses are very hard to determine - ar least in my expirience. A big segment with PCs and a lot of curios and "skilled" users can be hell. And shooting them or cutting off fingers is considered as unprofessionel. :-< If someone is root on his system, how do you stop him from reading pakets? There is no way to tell a packet to avoid being read by tcpdump - or am I confused? You can scan and search cards in promicuos mode, but this leads back to shooting and cutting fingers. Or you can buy cards which dont provide this feature - this exists for token ring. Happy new year / prosperos ano nuevo Orm To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message