Yes, you can access in your scripts. However, you can only do this
after you have issued the "$ns run". Here is an example function
that you can try:
set n0 [$ns node]
...
proc futzWithRtObjects node {
set rto [$node rtObject?]
$rto dump-routes stdout
}
$ns at 0.1 "futzWithRtObjects $n0"
Kannan