Sending and receiving that same data by the same program, over a network socket

Question

I'm trying to send a data packet, and receive that same data packet, by a java program over a socket. The point is to measure the time it takes to go over the network and return to my program itself. I cannot use localhost "127.0.0.1". I cannot use my own IP address, because it causes a java.net.BindException (with it saying the Address is already in use, which it is).

Is there any other way to do this? I thought maybe partially closing the socket using socket.shutDownOutput() , but the problem is that I wish to send a lot of data packets, so the socket will need to listen to it synchronously.

Any way to do this? Send a data packet over a network and back to the same program/same IP Address.

Answer 1

Why not just have a client that echoes the data back to the server? Then you can bind it to any IP address.