-------------------------------------------------------------------
Mohamed G. Gouda					CS 356
Spring 2018						Exercise 6
-------------------------------------------------------------------
A client-server application is designed to run on top of UDP. The
server runs on top of a well-known UDP port i and the client runs
on top of any available UDP port j. 

Execution of the client starts by the client sending an application
message m. Eventually, the server receives message m and sends back
a reply message n to UDP. Then UDP adds a UDP header to n forming
a UDP segment s. The added UDP header has two fields named: src
UDP port number and dst UDP port number.

What are the values of these two fields?

-------------------------------------------------------------------
Solution
-------------------------------------------------------------------
The src UDP port number is i
The dst UDP port number is j