[mrtg] Re: Monitor Ethernet Interface

[Michael Grice]

* Scott Miller <srmiller at interbel.net> [040213 00:35] wrote:
> Hi all,
> 
>    I'm wondering if there is a way to monitor ALL ip's on the internal side
> of a cisco 2611.  What I mean is, I have a Cisco 2611 set up as a NAT box
> for about 250 customers.  I would like to monitor the inside (private) side
> and graph each individual IP without requiring each individual user to
> install some form of SNMP.  Anyone know of a way to do this?  I'm wanting to
> keep track of the amount of bandwidth each customer is using.

Have you looked into netflow? I believe you should be able to use it on
a 2600.

http://www.caida.org/tools/measurement/cflowd/

I will warn you that we have had some issues with it (i.e., some of the
features on our 7304's are apparently incompatible with netflow--but
this is less likely to be a problem with a 2600, I think).

I think your other option is IP accounting; I think but am not positive
that you can get at IP accounting data through SNMP.
--Michael

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