[Techtalk] network analyzer

Rudy Zijlstra rudy at edsons.demon.nl
Mon Dec 11 07:50:27 UTC 2006


Chris Henderson wrote:

> Hi all
>
> I'm after a free out-of-the-box network traffic analzyer which would
> query snmp and netflow
> from Cisco routers and generate aggeregate graphs end of the month in
> terms of total upload and download. It would also be good to know 
> outbound
> traffic to, say, port 80.


Take a look at www.mrtg.org which has been developed for things like this.

Cheers,

Rudy

>
> I have had a look at catci (which listens on the virtual interface)
> but it only gives out the bits per second (bps) data. And I would need
> to have a plugin to get the per-port specific graph.
>
> I also looked at ntop but doesn't keep historical record for me to
> generate any graphs. I also looked at scrutinizer and big brother but
> they come with a price tag on them.
>
> Is there any open source product that would do the job for me easily?
>
> Thanks.
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