From owner-freebsd-hackers@FreeBSD.ORG Fri Sep 9 20:44:00 2005 Return-Path: X-Original-To: hackers@freebsd.org Delivered-To: freebsd-hackers@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 55CC716A41F; Fri, 9 Sep 2005 20:44:00 +0000 (GMT) (envelope-from brdavis@odin.ac.hmc.edu) Received: from odin.ac.hmc.edu (Odin.AC.HMC.Edu [134.173.32.75]) by mx1.FreeBSD.org (Postfix) with ESMTP id F027843D46; Fri, 9 Sep 2005 20:43:59 +0000 (GMT) (envelope-from brdavis@odin.ac.hmc.edu) Received: from odin.ac.hmc.edu (localhost.localdomain [127.0.0.1]) by odin.ac.hmc.edu (8.13.0/8.13.0) with ESMTP id j89Khwcf027125; Fri, 9 Sep 2005 13:43:58 -0700 Received: (from brdavis@localhost) by odin.ac.hmc.edu (8.13.0/8.13.0/Submit) id j89KhwK4027124; Fri, 9 Sep 2005 13:43:58 -0700 Date: Fri, 9 Sep 2005 13:43:58 -0700 From: Brooks Davis To: Mike Hunter Message-ID: <20050909204358.GC12395@odin.ac.hmc.edu> References: <4321DDCA.8050902@rfc2549.org> <20050909202849.GA46237@malcolm.berkeley.edu> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="HG+GLK89HZ1zG0kk" Content-Disposition: inline In-Reply-To: <20050909202849.GA46237@malcolm.berkeley.edu> User-Agent: Mutt/1.4.1i X-Virus-Scanned: by amavisd-new X-Spam-Status: No, hits=0.0 required=8.0 tests=none autolearn=no version=2.63 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on odin.ac.hmc.edu Cc: Daniel Eischen , "Ryan P. Sommers" , hackers@freebsd.org, Arne Schwabe , Andrea Campi Subject: Re: "Smart" Hubs X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 09 Sep 2005 20:44:00 -0000 --HG+GLK89HZ1zG0kk Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Sep 09, 2005 at 01:28:49PM -0700, Mike Hunter wrote: > On Sep 09, "Daniel Eischen" wrote: >=20 > > On Fri, 9 Sep 2005, Arne Schwabe wrote: > =20 > > > >I came in kinda late to this thread, but if you're trying to find > > > >a hub/switch in order to sniff network traffic, then you can always > > > >go for a switch that let's you monitor traffic on other ports. > > > >I know the Cisco's will let you do this, but I'd be suprised if > > > >you couldn't find it on some other cheaper switches. > > > > > > > > > > Or if you have 3 nics, use if_bridge. Or buy a really expensive manag= ed > > > switch, which allows you to mirror ports, vlans etc. > >=20 > > Well, is $175.00 US expensive? The Netgear FS726T can be had for > > about that price, and according to Netgear's web site, will support > > port monitoring. A 24-port switch may not be small enough for you, > > but if you look around enough, you might find something that is. >=20 > I think it violates specifications, but how about a physical copper "tap", > like a two-headed cable? Has anybody ever tried something like this? > Ethernet was designed in the days of shared media.... That would be what the link I posted earlier does. With full-duplex connections, you need two recieve lines to get traffic in both directions, but it does in fact work. -- Brooks --=20 Any statement of the form "X is the one, true Y" is FALSE. PGP fingerprint 655D 519C 26A7 82E7 2529 9BF0 5D8E 8BE9 F238 1AD4 --HG+GLK89HZ1zG0kk Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.1 (GNU/Linux) iD8DBQFDIfQNXY6L6fI4GtQRAv3kAJ9TE0Iq3PQ2Le9Hd0gYU8RK7njiBACeOYm6 +FeXlN5Iot4OALtT41iT4RQ= =QSI6 -----END PGP SIGNATURE----- --HG+GLK89HZ1zG0kk--