c# - SOAP request Multicast over UDP -

i want use c# udpclient class multicast soap request on network, can multicast simple strings using udpclient class how soap messages ?

 public void sendprobe()     {         udpclient sock = new udpclient();         ipendpoint iep = new ipendpoint(ipaddress.parse("239.255.255.250"), 3702);         // want create soap message here multicast using udpclient         //         //         byte[] data = encoding.ascii.getbytes("this test message");         sock.send(data, data.length, iep);         sock.close();                 } 

soap servers listen on tcp ports.

are sure soap servers you're targeting listening udp traffic?