hi:I am trying to run a script in wireless scenario and when i try run it, the progrma says there is a mistake in the command random motion for {set i 0} {$i < [expr $num_row*$num_row ] } {incr i} {=20set node_($i) [$ns_ node]=20$node_($i) random-motion 0 ;# disable random motion}Can anybody tell me, I checked in the forum and i saw a suggestion to change the value from 0 to 1 but it does not work also _________________________________________________________________ Se parte de la mayor comunidad de blogs en México. Crea tu propio espacio gratis. www.live.spaces.com