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The moose likes Sockets and Internet Protocols and the fly likes capturing packets going through my system Big Moose Saloon
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capturing packets going through my system

donepudi madhu

Joined: Sep 25, 2002
Posts: 11
I want a java code to capture Packets sending and recieving by my system.
gautham kasinath
Ranch Hand

Joined: Dec 01, 2000
Posts: 583
Well, capturing packets going thru the system is called packet/network sniffing.
What happens is that you need to directly access the network buffer and read the packets before the network card rejects the packet based on the destination mismatch.
This is possible thru C/C++, but I wonder if any *Java* code will do that for you.
Try and locate an c/c++ library that does it and write a c wrapper to the library. Then write a JNI wrapper to the *c-wrapper* and use java to do the needful for you.
As for searching for the library, my guess it that there must be some available, free for Linux.

"In the country of the blind, the one eyed man is the King"
Gautham Kasinath CV at :
Vivek Viswanathan
Ranch Hand

Joined: Mar 03, 2001
Posts: 350
There is something avalaible for linux, incase u subscribe for PCQuest it is avaliable in the Dec 02 Issue. I dont remember the name....sorry

Vivek Viswanathan SCJP 1.2, SCJP 1.6,SCJD,SCEA,SCWCD,IBM-484,IBM-486,IBM-141,Ms.NET C# 70-316,SCMAD, LPIC-I
Varun Nambuthiri
Ranch Hand

Joined: Sep 20, 2010
Posts: 76
You can Use Jpcap

All's well that Debugs well .
I agree. Here's the link:
subject: capturing packets going through my system
It's not a secret anymore!