Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

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

What is best lan network monitoring tool?

share|improve this question

migrated from stackoverflow.com Mar 11 '10 at 5:26

This question came from our site for professional and enthusiast programmers.

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

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

    
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
    

2 Answers 2

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

share|improve this answer

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

MS netmon

share|improve this answer