[lug] OT: Wake On Lan

[D. Stimits]

Mr Viggy wrote:
> That's what I was thinking, after reading a couple of those web pages. 
> WOL uses the MAC addy of the card.  So, WOL frames shouldn't really be 
> routable, correct?


They do not have to be routeable in the case of a bridge to the cable 
modem network...the same subnet is used for all of the customers in the 
neighborhood. A bridge passes all of this along, it does not behave the 
same as a router.

D. Stimits, stimits AT attbi.com

> 
> Viggy
> 
> Peter Hutnick wrote:
> 
>>> watch what is sent (DHCP broadcasts are apparently from normally
>>> non-routeable IP's). Still, I thought that this machine would ignore
>>> such broadcasts, I have in theory disabled WOL both in the o/s and in
>>> the BIOS.
>>
>>
>>
>> WOL has nothing to do with IP.  There is no IP stack in your NIC . . .
>>
>> AFAIK it uses raw ethernet frames.
>>
>> I'm not much of a programmer, but you might find
>> ftp://ftp.scyld.com/pub/diag/ether-wake.c instructive.
>>
>> -Peter