• Active Directory
  • Application
  • Desktop & Mobile
  • Help Desk
  • Network
  • IT Security
  • MSP
  • On-Demand
 
 
Device Management, made easy
Manage control and secure your workstations, mobile
devices and tablets
 
 
Help Desk for Everyone
IT Help Desk Software and Customer Support Software
 
 
Protect Your IT. Save Your Business
Build a secure fortress with our security management solutions
 
 
MSP
Manage services faster, with multi-tenanted, ITIL-ready, and unified RMM solutions
 
 
On-Demand Solutions
IT Help Desk, Active Directory, and Operations Management from the Cloud
 

Knowledge Base

Wake on LAN - Knowledge Base

1. Wake on LAN does not boot all the machines.

Check the following:

On the Machine

  1. NIC should be wake on LAN complaint
  2. In BIOS WOL should be enabled
  3. Most external NIC's will have 3 PIN WOL cable which has to be connected to the motherboard.
  4. You can see a blinking light in the NIC even if the machine is powered off.
  5. Ensure that the power supply to the machine is switched ON.

On the Network

For Wake On LAN to work across subnets (or VLANs)

  1. Enable IP Directed broadcasts on the routers/gateways. This ensures that the WOL packets are not blocked.
  2. IP directed broadcasts has to be enabled in all the required routers/gateways/switches along the path. This depends on the network design.
  3. Alternatively, you can also add an access list in the switches to allow UDP packets from a specific machine to other subnets. For example: Access-list 101 permit udp 192.168.110.103 host 192.168.116.255 eq 5000, where

    192.168.110.103 - refers to the machine generating the WOL packets

    192.168.116.255 - refers to broadcast address that is being permitted

    5000 - refers to the port from which the WOL packet is being sent from the generating machine.

    This again needs to be enabled in all the routers/switches along the path

Questions

Switch Port & IP Address Management Software trusted by