WOL is based on the principle that when the PC shuts down, the NIC still receives power, and keeps listening on the network for the magic packet to arrive. The WOL feature allows the administrator to remotely power up all sleeping machines so that they can receive updates. This additional functionality allows administrators to perform maintenance on systems even if the user has powered them down. WOL sends specially coded network packets, called magic packets, to systems equipped and enabled to respond to these packets. Wake-On-LAN (WOL) is a combination of hardware and software technologies to wake up sleeping systems. Refer to Cisco Technical Tips Conventions for more information on document conventions. If your network is live, make sure that you understand the potential impact of any command. All of the devices used in this document started with a cleared (default) configuration. The information in this document was created from the devices in a specific lab environment. Note: Cisco does not recommend any Wake-On-LAN utility. PCs that run Microsoft Windows 2000 operating systemįreeware Wake-On-LAN utility from SolarWinds The information in this document is based on these software and hardware versions:Ĭatalyst 3750 Series Switch that runs Cisco IOS® system Software Release 12.2(25r)SECĬatalyst 2950 Series Switches that run Cisco IOS system Software Release 12.1(19)EA1a Understanding and Troubleshooting DHCP in Catalyst Switch or Enterprise Networks Using PortFast and Other Commands to Fix Workstation Startup Connectivity Delays
#Wol wake on lan settings values how to
How To Configure InterVLAN Routing on Layer 3 Switches Prerequisites RequirementsĬisco recommends that you have knowledge of these topics before you attempt this configuration:Ĭreating Ethernet VLANs on Catalyst Switches
This document provides a sample configuration for Wake-On-LAN (WOL) support across VLANs with a Catalyst Layer 3 switch.
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