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VPN Client Tracking

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pconrad

IS-IT--Management
Jul 12, 2002
28
US
I have a Cisco router that I am using for site-site tunneling and as a concentrator for VPN clients. I can track the bandwidth used by each established site by looking at the tunnel interface. How can I see the traffic used by the VPN client users? They come in through the main serial interface that has all web traffic as well.
 
Not sure if this helps you but you can see how much data is being crypted/decrypted and sent/received on the client by using the vpnclient CLI tool that comes with the client.

Otherwise you would need to setup netflow and store this data and run filters on it based on source address to get traffic sent. Nfsen will do it I think.
 
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