Wake on Lan through Layer3 3com 7750switch

Ok guys here is my problem I am looking at using wake on lan but am having trouble getting it to cross over vlans due to having a layer 3 switch inbetween. I can use wake on lan when my computer is in the same vlan but I need it to reach all of my vlans. The problem is on my managed Layer 3 switch I cannot figure out how to allow that port to pass through (maybe apply acl?). Any suggestions? Not sure if anyone here is up on 3com switchs or networking but I figured I would give it a shot. This is nothing urgent, I guess I will get more cardio walking from building to building turning on the computers until I resolve this issue lol

WOL is typically on udp port 402, so you would need to add to the ACL on the 7750 switch. For example:

udp-helper enable
udp-helper port 402
int vlan 120
udp-helper enable
udp-helper port 402
int vlan 140
udp-helper enable
udp-helper port 402

and then:
ip ip forward-broadcast permit 10.0.0.1 24

to allow forward broadcasting. This should do it... also make sure to update your firmware before attempting this. Let me know if you need any help.