I did play with the headers to test my own protocol. As far as I know NS you should be able to modify your own header information to add what you need. I am not enough savy to explain how I did it but I found this manual really helpful to understand how NS handles the headers. It also contains some examples that you can use as starting point.
http://www.isi.edu/nsnam/ns/ns-documentation.html Hope it helps, -as On 9 Jul 2009, at 08:18, Τσιλιγγίρης Γεώργιος wrote: > > Hi to all, > > I am trying to simulate a simple call flow in ns 2. Something like the > one attached. My idea is to create a new packet header with one int > value and one agent for each node. Each message in the call flow is > given an ID (1,2,3...). The first agent sends the first packet with > the ID=1 to the second node. The agent on the second node receives the > packet and sends one packet back (ID=2) and one packet to the third > node (ID=3). The procedure continues in the same way. > I created the packet header successfully but i have some problems with > the agents. Has anyone done anything similar? Can anyone help me? > > George.