Date: Wed, 27 Oct 1999 12:14:16 +1000 From: Gregory Bond <gnb@itga.com.au> To: freebsd-ipfw@FreeBSD.ORG Subject: monitoring ipfw with mrtg? Message-ID: <199910270214.MAA14865@lightning.itga.com.au>
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Any ready-made hints about monitoring ipfw rule byte/packet counts from a
(remote) mrtg session? I can think of lots of hacks that would work, but none
are very elegant, and some are not real efficient, and some are not suitable
for implementing on a firewall.....
[
btw: ipfw is just -great- at measuring traffic (and can give up much more
information that e.g. router logs). I use something like this
$fwcmd add 47 skipto 50 ip from ${oip}:${omask} to any in recv ${oif}
$fwcmd add 48 skipto 50 ip from ${ispnet} 8080 to any in recv ${oif}
$fwcmd add 49 skipto 50 ip from any to any in recv ${oif}
The first rule tells me how much traffic I received from other local hosts, the
second how many bytes I received from the ISP's web cache, the third the number
of bytes I receive from the internet - which is how many bytes I have to pay my
ISP for! I'm trying to graph these three numbers using a remote mrtg session.
This is probably old news to most of you, but I just discovered it...
]
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