One of my client requires a solution for monitoring end users traffic going through a Cisco router. There is a lot of problem with over utilization of WAN link by end users. The company need a solution for monitoring operation of end users (who & where they are trying to communicate).
Please suggest an appropriate solution, also mention the software available and configuration needed in the Cisco router. Is there any other method with Cisco switches? I heard about SPAN configuration but no idea. Please help me with a detailed solution.
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