How to get automatic labels on board

Alex wrote:
> Is it possible to get labels to be added (to some predefined layer) for
> pins (or traces) in a board (Eagle 4.16 or Eagle 5.x) in an automatic
> way (say show all labels) ?
Not with any built-in function, nor will that be possible to do while 
routing that trace.
Yet you can enable displaying pin-numbers in the board view by checking 
"display pad names" in options -> set -> misc.

Or you can write your own ulp to place text-elements onto the track. but 
as stated, this will be static only. So the labels wont change/move with 
changing the trace without re-running the ulp.

http://www.ehso.com/PCB_label.htm

take help from above mentioned link

courtesy by: www.rushpcb.com