Intercept TCP data from a specific program or to a specific port

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I am looking for a way to capture tcp traffic. This is ethernet data sent to an industrial control by PC software. Software engineer is not around to talk with. If I can capture the tcp stuff (it's just ascii) I can understand the codes back and forth. Traffic exchanged is very minimal and we control exactly when it is sent/received.

Posted 20-May-11 14:49pm

sts1sse6

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HimanshuJoshi · Answer 1 · 2011-05-20T14:55:00

Solution 1

If you want to just capture and see the data on a specific port, use Wireshark[^]. Or if you want to create a program that captures specific TCP traffic, use Winpcap[^] library.

Posted 20-May-11 14:55pm

HimanshuJoshi

Comments

Albert Holguin 9-Jun-11 0:32am

pretty much sums it up, my 5... wireshark is an excellent tool..

HimanshuJoshi 9-Jun-11 9:33am

Thanks.

Albert Holguin 9-Jun-11 10:48am

thank wireshark... :p

HimanshuJoshi 9-Jun-11 11:13am

:)