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Wake on Lan over VPN

Posted on 2006-07-14
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Last Modified: 2008-01-09
We have two offices connected via a VPN link, I wish to enable WOL over VPN for updates etc, I have had no problems getting the WOL facility to work on each LAN, but when I try over VPN, it just fails.

I have tried various utils and none of them have worked. Has anyone come across any way of getting WOL to work over a VPN link.
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Question by:dwelldon
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9 Comments
 
LVL 4

Expert Comment

by:jcdesign4u
ID: 17106421
Have you tried this one? http://www.depicus.com/wake%2Don%2Dlan/
They have a great WOL tool.

Or else this one:
http://www.matcode.com/wol.htm
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by:ded9
ID: 17106558
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Accepted Solution

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lrmoore earned 200 total points
ID: 17107116
A WOL Packet is a "special Ethernet frame" it is NOT an IP packet. VPN's traditionally only encrypt IP packets with an identifiable source and destination IP.
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by:lrmoore
ID: 17107136
I have to clarify that last comment. Not enough coffee yet...
It is a broadcast packet that is not carried over the VPN.
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by:jcdesign4u
ID: 17107224
It's a magic packet!
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by:rage419
ID: 17107457
Yea, you would have to tell the vpn on both sides to forward broadcast traffic. Will keep the link up all the time pretty much if an on-demand tunnel and burn up bandwidth.

Any chance you have a box at the site that could generate the WOL?
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Expert Comment

by:Rob Williams
ID: 17107669
Can you connect to one machine on the LAN, that is always on, with the VPN, and then using remote desktop, or similar, send a WOL/magic packet from there.

Also have a look at this on-line web based WOL tool. I haven't tried it but heard it works well.:
http://www.dslreports.com/wakeup
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