Virtual interface

Hi everyone

I need to emulate subnet with multiple virtual interfaces to which I
can bind() particular application .

In the beginning I have been trying to do this with help of dummy
interfaces but I couldn't communicate between theme ;

host := on the same subnet

ifconfig host0 dummy0 up
ifconfig host1 dummy1 up

ping -I dummy0 host0 - > 100 % packet lost

I am writing communicator application as a final year project , that's
using brodcasts to detect other instances it on the network .
I really dont know how else could I test my application for larger
number of users .

R3gis