Introduction - If you have any usage issues, please Google them yourself
simple directed diffusion example.This example tests directed diffusion in 2 simple scenarios
(1) where all 3 nodes can hear each other and a source and sink application pair is setup on two of the nodes and
(2) where node0 and node2 do not hear one another and communicates thru the third node1. src and snk apps reside on node 0 and node2.