There are plenty of ways to monitor traffic on a specific interface or even by port. But if I am on a router and suspect one of the workstations is using more bandwidth then others, how to check?
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iftop will show the TCP/UDP streams on an interface in realtime, which is often sufficient to identify which host is hogging the bandwidth. If you want something to record this over time, try darkstat or bandwidthd. |
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Try using something like Wireshark and filtering the IP's to the workstation's specific IP. You can see how much data is on the network that has originated from that machine. If its flooding the network with traffic then you will see on Wireshark. Wireshark does come with command line tools if you don't have a X server on your Linux router. Its not the most elegant solution but it will get it down and tell you exactly how much data its sending. Bill |
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