Printing solution question

[Devan Erno]

We're experimenting with load-balancing our print spoolers. We have a BigIP loadbalancer, and are attempting to set up a print solution with that. Since printing uses port 515, we thought it would work correctly to divert that port's traffic to the pool of machines.

However, it doesn't work. The request does not reach any of the spooler machines. Are there ports used that I am not aware of for printing, or another problem that you can see?
Thanks.