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<!--SOHUMAIL_HTML_HEAD_END-->> Thanks for all keen reply and the tools such as netdude, libtrace and etheral etc. are suitable, Thanks very much! <p> The Netdude and libtrace run on Linux/Unix and Etheral can run on linux/Unix/Windows.<p> All helps me greatly and i should say thanks again to my friendly and enthusiastic Zhani Mohamed Faten; Christian Kreibich and sampad mishra<p><p> Shaohe Lv<p> <p><hr size=1><style type="text/css">
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