Wake on LAN (WON) over VPN

I'm trying to set up Wake on LAN (WOL) so that I can wake my work PC from home. I can wake my PC from within our local network, but not from my home computer. The company is not keen on setting up port forwarding to broadcast the Wake on LAN packet (magic packet) for security reasons, but they have given me SSL-VPN access to the company server. However, when I run the Wake on LAN program from home, it doesn't wake my computer. I did a search on the Internet, and apparently VPNs don't like doing broadcasts.

Does anyone know if there is a setting in the FortiGate 400D that I can configure to allow it broadcast the magic packet via VPN access?