1.In your first code you created only one socket , so for that you got only one port.But in your second code you created some number of sockets ,because you run a loop till 20000.For the each iteration of the loop your program tried to created a socket . So you got the ports for the connected sockets .
2. To store the ip in char array you need 16 bits.
3.You can not easily access the external site ip's .Because they would accept the the outside connection easily .Then used have firewall security.
Last edited by karthigayan; 6Mar2010 at 12:56..