Hi All, I want to use udpcast in unicast (or pointopoint) mode. However, I do not want udp-sender to determine whether to use unicast or multicast based on the number of connections coming from the clients since I want to test udp-sender along with another application on the receiving side other than udp-receiver (In this framework, there won't be any connections coming from the clients). Based on above, I want udp-sender to use the unicast destination IP address provided by the user from the command line or it may be even hard-coded into the source code. I tried to use -m option to specify a unicast address instead of a multicast address to "trick" udpcast. But, it did not like that. I guess that it got some kind of negative feedback from the existing udp-receiver clients, and aborted the transfer since the clients were expecting a "proper" multicast address after -m option. Any ideas to overcome this issue ? Thanks.