An IP Helper address allows you to send broadcast traffic across vlans.? Speak to your network Admin.? They should know how to implement it.? Unfortunately I don't know a great deal about it.? It was actually my clients network Admin that implemented it for me on a job a while back.??
We had 3 crestron processors on one vlan, that had to control over 400 tvs spanning about 8 different vlans.? ?Every TV used WOL to turn on and it all works perfectly.??