Date: Sat, 24 Jun 1995 10:05:30 +0300 From: Amos Shapira <amoss@cs.huji.ac.il> To: freebsd-hackers@freebsd.org (FreeBSD Hackers Mailing List), bytecounters@isi.edu Subject: Re: Network Usage Stats Message-ID: <199506240705.AA08234@picton.cs.huji.ac.il> In-Reply-To: Your message of Fri, 23 Jun 1995 22:01:57 -0700 (PDT) . <199506240501.WAA12272@gndrsh.aac.dev.com>
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"Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com> wrote: |> |> I am looking for a non-intrusive, hopefully low-CPU usage network |> usage monitor that can tell me something about how much the network(s) |> going in to a FreeBSD router is being used. |> |> Is there such a beast? | |Well, it is not quite what you want, but your FreeBSD router has it |built in. It is kernel pseudo-device bpfilter: | |# The `bpfilter' pseudo-device enables the Berkeley Packet Filter. Be |# aware of the legal and administrative consequences of enabling this |# option. The number of devices determines the maximum number of |# simultaneous BPF clients programs runnable. |pseudo-device bpfilter 4 #Berkeley packet filter Haven't got around to try this, but I've just incorporated patches to NNStat to make it use the Berkeley Packet Filter (as well as LBL's(?) libpcap). The latest version is available at ftp://ftp.huji.ac.il/users/amoss/NNStat-3.3beta-24JUN95.tar.gz and hopefully from gatekeeper.dec.com soon Hope this helps, --Amos --Amos Shapira | "Of course Australia was marked for 133 Shlomo Ben-Yosef st. | glory, for its people had been chosen Jerusalem 93 805 | by the finest judges in England." ISRAEL amoss@cs.huji.ac.il | -- Anonymous
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