Hi , I'm working with ns version 2.1b4 , i try to analyse the protocol PIM-SM over ns , But i find that it is not supported and all examples gived ( in directery /tcl/pim and tcl/ex/newmcast ) doesn't work , Is PIM-SM supported by ns ? and how can i get the code of its implementation ? Thanks a lot; --------------------------- Lazrak Mohamed email : [email protected] ---------------------------