From owner-freebsd-security Tue Jul 29 13:08:09 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id NAA09654 for security-outgoing; Tue, 29 Jul 1997 13:08:09 -0700 (PDT) Received: from khavrinen.lcs.mit.edu (khavrinen.lcs.mit.edu [18.24.4.193]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id NAA09618 for ; Tue, 29 Jul 1997 13:08:01 -0700 (PDT) Received: (from wollman@localhost) by khavrinen.lcs.mit.edu (8.8.5/8.8.5) id QAA15592; Tue, 29 Jul 1997 16:07:57 -0400 (EDT) Date: Tue, 29 Jul 1997 16:07:57 -0400 (EDT) From: Garrett Wollman Message-Id: <199707292007.QAA15592@khavrinen.lcs.mit.edu> To: Christopher Petrilli Cc: Poul-Henning Kamp , Warner Losh , Robert Watson , security@FreeBSD.ORG Subject: Re: Detecting sniffers (was: Re: security hole in FreeBSD) In-Reply-To: References: <284.870203173@critter.dk.tfs.com> Sender: owner-freebsd-security@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk < said: > well, it does only allow a MAC to appear once, so you would realise this > quite quickly. But a switch is the same as well, unless you've hard > coaded VLAN type information based on MAC addresses into the > switch---which is unmaintainable. But which some organizations do anyway, because it allows them to force their users to get permission to install any new machine. -GAWollman -- Garrett A. Wollman | O Siem / We are all family / O Siem / We're all the same wollman@lcs.mit.edu | O Siem / The fires of freedom Opinions not those of| Dance in the burning flame MIT, LCS, CRS, or NSA| - Susan Aglukark and Chad Irschick