[ns] How to realize many connection to one agent

I want to create agent which will have ability to response on the request from any agent. Let's say that below is example (which of course doesn't work). I would like that for example that TCPSink could response on request from tcp1 and tcp2. What should I do ? Example Agent1 comunicate

[ns] how to add secod interface to node

Hello, I want to create a node with two or three interfaces. Could you tell me how to add the second interface to node Best regards Przemyslaw Krekora

[ns] how to add filtering

Hello again Another problem i have is how to add filtering to node. I fing in documention a class Filter which inherits from class connector. I would like to know how to add new object filter and in which way the rules are defined:) Thanks a lot Przemek Krekora