Writing and reading addresses from a Packet and how scheduling works in NS3

[Nwa Obi]

Hello Guys,

Is there any sample code where you can write and read addresses from a packet and also I have a design where a central node receives packets from several nodes over a point to point channel with each node and I want the central node to be able to respond to each node and how can I schedule each event(i.e receiving packet and response). If there is any ns3 example code I can use it will be helpful.

[Konstantinos]

The topology you want to simulate is a star. There is a class to help you build such a topology, see point-to-point-layout module. 

You do not schedule the receive event. A receive event will happen when someone sends something! You can't say "now I am receiving a packet" if nobody has sent you one. 

I would suggest to look at the application module. There are sample applications (a) to send packets, and (b) receive packets. Also, the Ping application will reply back when it receives a packet (i.e. response). 

[Nwa Obi]

Thanks, I will look into that now