networking - Java test multiple computers on a network -

networking - Java test multiple computers on a network -

i doing project multiple computers connect on network send each other udp packets on multicast network. able test out grouping of computers , teammates when running same programme on same router. want write tests able simulate on single computer when alone. don't care if doing sending myself want know there testing way simulate having multiple computer nodes in network (with false ip addresses') send , receive pings from? or possible @ all?

if add together more 1 network interfaces testing computer may able test stuff. 1 way of doing maybe add together virtual interfaces. if using windows can add together virtual loopback network interface. follow link setup that:

http://support.microsoft.com/kb/839013

for linux:

http://linuxconfig.org/configuring-virtual-network-interfaces-in-linux

java networking testing udp multicast