Dear ns-users, I have one question about Marc Greis's tutorial: - In the ping example if we don't connect the two ping agents how to do "$ping_agent send $node" in C++ level i.e to ping an agent without being connected to the sender agent? Regards -- Ghassan CHADDOUD LORIA/INRIA-Lorraine, 54506 Vandoeuvre-les-Nancy CEDEX