Thanks a lot for the answer
I did not know about this �DMZ feature� but I will find out about it.
I am coding video conferencing software where 4 to 6 people can login and have a conference. The video has to be distributed only within these people. I found out about this
java media framework JMF. It gave me two files that I can use to transfer and receive real time videos.
http://www.cs.odu.edu/~cs778/spring04/lectures/jmfsolutions/examplesindex.html AVTransmit2.java from transmitting
http://www.cs.odu.edu/~cs778/jmfexamples/AVTransmit2.java AVReceive2.java from receiving
http://www.cs.odu.edu/~cs778/jmfexamples/AVReceive2.java Receiving is ok. But for transmitting the file ask the IP address of the destination.
So now I come back to my questing that has posted above. No need to explain it again.
Am I missing some java technology hear or as you explained in the answer will this work when published in the inter net.
If I am reporting the same questing sorry for that I am not new to java. But I am not good when comes to Internet stuff.