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

Which is the best program for monitoring local network traffic

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    Are there any restrictions what OS the "sniffer" should use? – lexu Mar 06 '10 at 08:13
  • http://superuser.com/questions/22569/monitor-all-and-any-internet-traffic-from-my-home-pc-what-should-i-use http://superuser.com/questions/68115/easy-to-use-tool-to-monitor-incoming-network-traffic http://superuser.com/questions/96830/network-monitor-tool-closed http://superuser.com/questions/103103/monitor-network-traffic-on-pcs-connected-to-router – random Mar 06 '10 at 08:28

3 Answers3

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WireShark is great for monitoring all kinds of traffic on a network.

If you'd like to only see local traffic, you can use capture filters.

For example:

net 192.168.0.0/24
John T
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Try some of these applications:

http://www.freewarehome.com/index.html?http%3A//www.freewarehome.com/Internet/Networking/Network_Monitoring_t.html

Gaff
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Depending on the level of detail you are interested choose from this list.

  1. Wireshark -- for detailed packet inspection
  2. Sysinternals TCPView -- for basic connection activity on a Windows machine
  3. iptables for basic connection activity on a unix machine
nik
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