[lug] OT: Wake On Lan

[D. Stimits]

I am wondering if anyone here is familiar with how Wake On Lan (WOL) is 
communicated? In this case, it is the Linksys LNE100TX, ver. 5.1, but 
perhaps there are common ways to implement this.

For one, is there a specific port used, or maybe a broadcast message? 
Also, does this WOL feature detect when an ethernet cable has been 
connected (I know the local switch/hub detects this), and run WOL just 
by detecting a new physical connection?

My motive for asking this is that one machine in the newly wired house 
sometimes spontaneously turns on. WOL has been turned off in the BIOS as 
far as I can tell (the card is not integrated, so the BIOS may not have 
complete control). The system (use the word loosely) is Win98 on fairly 
modern hardware. I am trying to figure out why it can sometimes reboot. 
Originally it was found to do this when turning off power on the bridge 
and switch (testing UPS software), but on rare occasions it does this at 
other times. My hope is that there is something I can use the Linux 
filtering bridge for to at least remove all Internet influences, and 
narrow the debugging down to the LAN or machine itself.

D. Stimits, stimits AT attbi.com