Multicast traffic is actually pretty simple to create with any programming language. If you got python installed here's an example, I hope it works under Windows.
import sys import socket from time import sleep UDP_IP=sys.argv[1] UDP_PORT=sys.argv[2] TTL=2 DATA="whateverandever" sock = socket.socket( socket.AF_INET, socket.SOCK_DGRAM ) sock.setsockopt(socket.IPPROTO_IP, socket.IP_MULTICAST_TTL, TTL) while True: sock.sendto ( DATA, (UDP_IP, int(UDP_PORT)) ) sleep(1)
Save it to i.e. mcast.py and execute it like this:
python mcast.py <destination> <port>
Change TTL in the script if you whant the traffic to reach further down in the network.