Date: Wed, 06 Dec 2006 10:01:31 -0800 From: Julian Elischer <julian@elischer.org> To: Josh Paetzel <josh@tcbug.org> Cc: freebsd-net@freebsd.org, Benjamin Adams <freebsdworld@gmail.com>, Brett Glass <brett@lariat.net> Subject: Re: Bandwidth Monitoring program Message-ID: <4577057B.7060801@elischer.org> In-Reply-To: <200612061153.26040.josh@tcbug.org> References: <6199c3dc0612050848g16a0911dga145485ba14bf21f@mail.gmail.com> <200612060313.23621.josh@tcbug.org> <4576EB9D.2040300@elischer.org> <200612061153.26040.josh@tcbug.org>
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Josh Paetzel wrote: > 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? I'd say that adding a hub is quite possible.. > >
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