It is very common nowadays that network interface cards don't have Wake-on-LAN enabled by default (even when it is enabled on the BIOS). Usually the user needs to explicitly enable WOL using ethtool.

A useful enhancement to YaST's Network Card module would be allowing the user to set Wake-on-LAN options. This could be located in Advanced -> Hardware Details. YaST would first make sure the NIC's kernel module supported setting WOL, and then provide the user with the same set of options ethtool does:
       p  Wake on phy activity
       u  Wake on unicast messages
       m  Wake on multicast messages
       b  Wake on broadcast messages
       a  Wake on ARP
       g  Wake on MagicPacket(tm)
       s  Enable SecureOn(tm) password for MagicPacket(tm)
       d  Disable (wake on nothing)

If YaST determines the kernel module does not allow setting WOL, it would grey out the options list and print a message like «The driver or the card do not support setting Wake-on-LAN».