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Monitor all and any internet traffic from my home PC - what should I use?

What is best lan network monitoring tool?

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This question is better addressed on superuser.com – mjv Mar 11 '10 at 5:18
What exactly do you mean by monitoring? Are you wanting to monitor the status of systems on your network or capture traffic? – Zoredache Mar 11 '10 at 8:48
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migrated from stackoverflow.com Mar 11 '10 at 5:26

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closed as exact duplicate by random♦, fretje, alex, Diago Mar 11 '10 at 13:51

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2 Answers

up vote 3 down vote

Wireshark is flat out the best monitoring tool.

Wireshark is very similar to tcpdump, but it has a graphical front-end, and many more information sorting and filtering options. It allows the user to see all traffic being passed over the network (usually an Ethernet network but support is being added for others) by putting the network interface into promiscuous mode.

* Data can be captured "from the wire" from a live network connection or read from a file that recorded already-captured packets.
* Live data can be read from a number of types of network, including Ethernet, IEEE 802.11, PPP, and loopback.
* Captured network data can be browsed via a GUI, or via the terminal (command line) version of the utility, tshark.
* Captured files can be programmatically edited or converted via command-line switches to the "editcap" program.
* Data display can be refined using a display filter.
* Plug-ins can be created for dissecting new protocols.

From the Wikipedia article.

alt text

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up vote 0 down vote

Alternatively you can take a look at Microsoft Network Monitor (netmon) if you work with Windows:

MS netmon

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