How to send data directly on LAN

I want to write a traffic generator, but I have no idea of how to send a packet on LAN arbitrarily. That's mean I can make packet with any form which maybe is illegal and doesn't accord with any standards. Is there any class to use for this purpose. Otherwise, what can I do.

anything is helpful for me, I'll appreciate for you.

[345 byte] By [JavaBoyInCnica] at [2007-10-1 2:15:48]

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# 1

Java is not appropriate for this low-level network hacking. Do it in C or C++.

BIJ001a at 2007-7-8 11:24:28 >