[mrtg] Re: Blocking ip addresses and/or ports from being recorded

[Dana Hudes]

You will find that Netflow is the way to accomplish what you want.
See flowscan. It uses rrdtool.

MRTG only knows what the remote agent tells it.

You might find something in the IP Accounting MIB but a switch
wouldn't support that because it is layer 2 device.

It is possible to get some Netflow expert from some catalyst
switches, see the Flowscan community.


On Fri, 17 Jan 2003, James Overbeck wrote:

>
> Hello,
> 	This isn't something you can do at the layer 2 switch level I'm afraid.
> Switches pass through ethernet packets regardless of the port and whether
> the protocol is IP, IPX/SPX, or AppleTalk.
>
> Best regards,
> James
>
> Lloyd Bayley wrote:
> > Greetings People,
> >
> > I was wondering if someone could enlighten me if I can do the following
> > somehow:
> >
> > Scenario
> > -------------
> >
> > I am monitoring a Catalyst 2900 series 24 port switch and that portion is
> > working correctly. We also have monitoring software running to make sure
> > servers stay up..etc...
> >
> > Desire
> > ----------
> >
> > I would like to be able to remove this traffic from the end figures/graphs
> > if possible.
> > The monitoring traffic is coming from one IP address only and it goes to
> > it's own port (usually something out of scope like 8888)
> >
> > Am I able to "filter" this in MRTG somehow? Is this something I need to do
> > at switch-level (we have enterprise series switches).
>
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