General off-topic discussions.
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mellowd
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Netflow

Thu Apr 05, 2012 5:46 am

All.

I'd like to get a free tool running on linux that can easily get some netflow data from a Cisco device. There seems to be no easy way to do this.

What are you guys running on linux to get Netflow-specific data?

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burnyd
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Re: Netflow

Thu Apr 05, 2012 7:18 am

you already run Cacti right? I tried out a plug in for Netflow for it a while back which wasnt too bad.
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routerdork
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Re: Netflow

Thu Apr 05, 2012 8:12 am

burnyd wrote:you already run Cacti right? I tried out a plug in for Netflow for it a while back which wasnt too bad.

I too was going to use Cacti for it. There is a plug-in for it called Flow Viewer. I run Cacti on Windows won't work but it will on Linux.

haccduder
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Re: Netflow

Thu Apr 05, 2012 8:17 am

I've used NTOP (http://www.ntop.org/) for this before, but keep in mind that you're limited to about 64 subnets due to a variable in the initial source files. You can edit one of the source files to increase this, but I've never gone above 128 subnets without seeing strange errors.

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wirerat
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Re: Netflow

Thu Apr 05, 2012 9:15 am

nfdump/nfsen.
"See packet, be packet, you are packet. Ignore all else!" -The Networker
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