Re: WOL over the internet



On Thu, 28 Jun 2007 12:23:35 +0200, W.P. wrote:

Użytkownik H.K. Kingston-Smith napisał:
A computer A is connected to the internet by means of an ADSL
modem/router, which is connected to A at A's Ethernet port.

Assuming that we know the Ethernet address of this board, and
that the hardware (motherboard, Ethernet board and BIOS configuration)
does support WOL, would it be possible to wake up A from some other
computer B in the internet? Would one have to open any specific ports
in A's router/modem for the wake up packet to reach A, or would any
port?



AFAIK you need a router with WoL built-in. WoL works on layer-2 and your
connection to router (from Internet) is in Layer-3. So with "normal"
router there is no way to generate "magick" packet on LAN.

It can work, at least with some implementations:
http://forums.speedguide.net/showthread.php?t=141643

OP will need to set up a port forward on the router to 0, 7 or 9 UDP,
depending on the WOL implementation of the target machine.
http://en.wikipedia.org/wiki/Wake-on-LAN


Alternatively, with a Linksys WRT54G running third-party firmware (I use
Sveasoft Alchemy), it is possible to ssh into the router from the internet
and use the WOL utility on the router to send the magic packet to the LAN.



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