From owner-freebsd-net@FreeBSD.ORG Wed Dec 6 17:53:30 2006 Return-Path: X-Original-To: freebsd-net@freebsd.org Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id ED53216A412 for ; Wed, 6 Dec 2006 17:53:30 +0000 (UTC) (envelope-from josh@tcbug.org) Received: from sccrmhc11.comcast.net (sccrmhc11.comcast.net [204.127.200.81]) by mx1.FreeBSD.org (Postfix) with ESMTP id BAAE643CA8 for ; Wed, 6 Dec 2006 17:52:41 +0000 (GMT) (envelope-from josh@tcbug.org) Received: from gimpy (c-24-118-173-219.hsd1.mn.comcast.net[24.118.173.219]) by comcast.net (sccrmhc11) with ESMTP id <2006120617532701100fakr5e>; Wed, 6 Dec 2006 17:53:27 +0000 From: Josh Paetzel To: Julian Elischer Date: Wed, 6 Dec 2006 11:53:25 -0600 User-Agent: KMail/1.9.4 References: <6199c3dc0612050848g16a0911dga145485ba14bf21f@mail.gmail.com> <200612060313.23621.josh@tcbug.org> <4576EB9D.2040300@elischer.org> In-Reply-To: <4576EB9D.2040300@elischer.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200612061153.26040.josh@tcbug.org> Cc: freebsd-net@freebsd.org, Benjamin Adams , Brett Glass Subject: Re: Bandwidth Monitoring program X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 06 Dec 2006 17:53:31 -0000 On Wednesday 06 December 2006 10:11, Julian Elischer wrote: > Josh Paetzel wrote: > > On Tuesday 05 December 2006 23:52, Brett Glass wrote: > >> Add a few IPFW "count" rules to count the bytes and packets. > >> Then, periodically harvest and reset the counters via a cron job > >> and write the results to a file. You can then prepare tables and > >> charts which are as simple or as fancy as you please, without > >> resorting to SNMP (which isn't secure). A little bit of code in > >> your favorite scripting language will do it. And of course you > >> can output to a graphing package, though for me a simple > >> histogram using asterisks has sufficient precision in most > >> cases. > >> > >> --Brett Glass > > > > Just curious.....but where is he going to run ipfw? I seriously > > doubt his router can run it, and what good is it going to do him > > to run it on a machine on the network if the network is switched? > > It's not going to be able to see any of the traffic other than > > what that specific machine is sending/receiving. > > run ipfw in layer 2 after turning on promiscuous mode and attaching > it to a hub. > > I do it all the time. > He specifically said in his original post that putting a machine between the router and his lan wasn't an option. His question was, "Is there a program where I can see whats going on from the computer on that network?" The answer to that question is, if he's on a switched network, no. Not without a topology change. If he can't put a box between the switch and router how likely is it that he's going to be able to put a hub between the switch and router and then attach a box to that? -- Thanks, Josh Paetzel