Hi, I am trying to implement a new ad-hoc networking protocol in ns, similar to LAR. I need to fix the NodeId as a function of the x & y co-ordinates of their home regions. Inorder to fix the NodeId for the simulation, do I still need to use the 16 bit or 30 bit extended addressing or can I use my own addressing format. How do I define that. Can somebody throw some light on this. Thanxs in advance Rudhra