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how to tracking mail traffic through a Cisco router.

Posted on 2007-07-24
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I have been asked by my boss to find out the amount of mail traffic currently going through our Cisco 7204 routers.
This would be all POP, IMAP & SMTP traffic.

I know there is a way to track this, can someone help me out with some of the commands to do so.?
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Question by:superkev74
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by:trinak96
ID: 19559294
superkev,

How many users would be passing though this 7204 ? Volume of traffic would be a crucial piece of info as to what would be the best option for you. How long does your boss want this tracking for? what does he want it for ?, capacity planning etc ??


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by:superkev74
ID: 19559324
Thanks for the comment.

This is for capacity planning and approx 1500 users go through this device.
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by:trinak96
ID: 19559361
superkev,

There is an option to use cisco's netflow system, there are free tools on the web to analyse the output. Personally i prefer a sniffer on a mirrored switch port, something like ethereal. Others may disagree but i guess it's a personal choice.

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by:superkev74
ID: 19583444
Where would find some tools to analyse Netflow?

And what commands on a router would I initanate to use it.
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trinak96 earned 1500 total points
ID: 19585354
Netflow analysers are available all over the web - just google it.
This cisco link gives you the configuration of netwflow : http://www.cisco.com/en/US/docs/ios/12_0/switch/configuration/guide/xcnetflo.html

If you need help to get it running just let let us know.
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