On Jun 14, 2012, at 1:07 PM, Steve Campbell <campb...@cnpapers.com> wrote:

> We have a situation here that is a real mystery.
> 
> Our MRTG on our outgoing router  and a firewall server that protects our 
> web servers is showing a spike every six hours. I can't find the server 
> behind the firewall that is generating such an extreme amount of 
> packets, even though I've looked through the crontabs of nearly all 
> servers, performed "ps" variations, and other types of investigation.
> 
> Is there any type of package I can install that will monitor traffic and 
> report abnormal, over-threshold packets similar to what wireshark might 
> do in a manner that would allow me to determine where these packets 
> might be going or from where they originate?

Setup a nettop server and netflow on the routing interfaces and you will find 
tour culprit.

-Ross

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