Re: [Etherboot-developers] Wake-on-LAN patch

[Ken Y. <ke...@nl...>]

|I share Ken's sentiment about not making the ROM site-specific, but
|I think there is a workaround, that might be acceptable to some users.
|I have not been able to find an authoratitive specification for the
|Wake-On-Lan protocol, but it does appear that both broadcast and
|multicast packages are supported. How about sending broadcast packages
|from within etherboot, whenever we fail to detect a running BOOTP/DHCP
|server?

Well, as I understand it, broadcast is only in the sense of the
encapsulating packet. A WOL packet can be embedded in any type of
packet, even non-IP packets.  However the WOL packet itself has to
contain the MAC address of the targetted server. If it were not
specified that way a broadcast WOL packet would wake up all sleeping
servers on the network segment, whether you intended to or not.