In this post, I will bring you a bandwidth monitoring solution based on your cisco switch. In case your router/firewall does not have bandwidth monitoring features, or you need more detailed reports, this solution can help you.
Most cisco switch supports “port mirroring(SPAN)” feature. You may use below commands to enable it:
1. Set source port
Switch(config)#monitor session 1 source interface Fa0/23
2. Set target port
Switch(config)#monitor session 1 destination interface Fa0/22 ingress vlan 1
Then, you need to install a passby filtering program(ie: WFilter internet content filter) in a windows PC, and connect this PC to the “target port”. So you can monitor internet bandwidth and live connections of network clients.
The new diagram:
Now let’s check what you can monitor with WFilter:
1. Clients List
2. Live Connections
3. Bandwidth Reports