1. hack yahoo + ip adress
2. Go to Start –> Run (This will open your windows command prompt)
3. Type CMD and hit Enter
4. Send him the 3 MB file (You can send him a small clip, zipped images etc
5. while sending file ..type netstat -n in the command prompt
6. You will get a list of IP addresses like the below screen shot.



7. You can notice two columns as Local Address and Foreign Addressthere. Local address is your address while foreign address is the IP of the recipient with whom you are sharing the file.
8. Send him the 3 MB file (You can send him a small clip, zipped images etc
9. You will get a output. Suppose the following is the output.

TCP 129.11.25.10:5181 174.35.20.66:1646 ESTABLISHED

10. In the above one 174.35.20.66 is the IP address of that person and1646 is the port no where the file transfer is taking place. You are done here.