WOL and timed ACLs

Unanswered Question
Jun 18th, 2009
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Hi folks,

Anybody had experience of WOL and timed ACLs on switchports, please?

Current scenario is switchports' ACL only permits IP during working hours (defined in a time-range) but we want to roll-out the 1E WOL & NightWatchman tool to reduce workstation power consumption.

I can see an impending problem here, in that the port is shut (to IP) when WOL arrives.

Question is: Can I modify the ACL to sniff the WOL packets, or is there a better way?



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Edison Ortiz Thu, 06/18/2009 - 09:16
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Wake-On LAN packets are Layer2 while your ACL, as stated, are functioning at Layer3.

More information on WOL Magic Packets:


In conclusion, the WOL process won't be prevented by the ACLs.




a.whiting Fri, 06/19/2009 - 00:05
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Hi Edison,

Thanks very much for the clarification, and the helpful link.

Much appreciated,

Best regards,



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