[vdr] Re: OT: WOL with 3Com 3C905B-TX

[Andreas Schultz <aschultz@cs.uni-magdeburg.de>]

Andreas Roedl wrote:
> Hello!
> 
> Am Freitag, 22. März 2002 00:15 schrieb Matthias Queisler:
> 
>>The NIC got a link to the switch so the WOL in the BIOS is activated.
>>Now I was on it to put a second DVBs into my system and for this I had to
>>pull out the NIC. When I was ready I pluged in the cable for the WOL again.
>>And wonder suddenly the vdr started. So that means, that the wol from the
>>mainboard works but not from the NIC.
>>Can anybody help?
> 
> 
> Yes. You need a special (yellow) cable connected between the NIC and the 
> mainboard. These cables are delivered with the NIC itself.

If i understand the orginal mail corrently, than he has the WOL cable 
attached and the system woke up when he pulled it (btw: one should pull 
the power plug when installing new hardware).

The trick with WOL under linux is that you not only have to tell the bios
to accept the WOL trigger signal (that he did), but you also have to enable
WOL on you NIC. That is done through "ethtool".

"ethtool eth0" should give you something like (only relevant lines):

Settings for eth0:
         Supported ports: [ TP MII ]
         ......
         Supports Wake-on: pumbg
         Wake-on: d
                 ^^^ that means WOL is disabled

enable WOL with:

       # ethtool -s eth0 wol umbg


Have fun

    Andreas