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Wake a CI by sending a Wake On Lan packet (WOL) to network interfaces

Import · Oct 15, 2022 · article

Mid Server script and binary payload for sending Wake On Lan magic packet to wake up a CI. This example works on Mid Servers deployed on 64bit Linux hosts.

Script can be invoked via Flow Action Run WoL Command which accepts as parameter:

  • reference to Mid Server to be used for sending WOL
  • string containing Mac address in the form xx:xx:xx:xx:xx:xx
  • optionally can be provided broadcast IP address and if nothing is provided 255.255.255.255 will be used

AntonioRizzi_0-1665874394532.png

Subflow Wake CI can be used to wake a specific CI: it will cycle through all network interfaces associated to the CI and send a WOL packet to each interface MAC address.

AntonioRizzi_1-1665874577962.png

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https://www.servicenow.com/community/now-platform-articles/wake-a-ci-by-sending-a-wake-on-lan-packet-wol-to-network/ta-p/2353189