Wake on LAN is a feature where one can send a broadcast over the network to boot a machine.

learn more… | top users | synonyms (1)

16
votes
4answers
2k views

Why does a Wake-On-LAN packet contain 16 duplications of the target MAC address?

From the Wireshark webpage: The Target MAC block contains 16 duplications of the IEEE address of the target, with no breaks or interruptions. Is there any specific reason for the 16 duplications?...
11
votes
7answers
7k views

I would like to start multiple computers at once, What software do I use?

I have turned on Wake On Lan on all of the BIOSes in the PCs and I have a simple batch file that runs a free command wolcmd.exe Wake on Lan Command Line The syntax is as follows: wolcmd [mac address]...
11
votes
2answers
185 views

How can I tell whether the system booted because of Wake-on-LAN (WoL) or because of the power button?

In Windows 10, I would like to know how I can tell in a script whether the system booted because it was turned on by receiving a Wake-on-LAN (WoL) packet, or because it was turned on because of ...
10
votes
6answers
2k views

Laptop waking from sleep

I have a laptop which has "recently" turned into the proverbial baby, and refuses to sleep through the night, or for that matter, through some days. I'm a little lost when it comes to trying to debug ...
9
votes
2answers
667 views

Why WakeOnLAN frames are sent to broadcast

I'm trying to figure out why wake on lan frames, in the simplest form, are designeted to the ethernet broadcast address (FF:FF:FF:FF:FF:FF) and not to the address of the machine to be powered on. ...
9
votes
5answers
10k views

Wake on Lan tool for Windows?

Can anyone recommend a good Wake on Lan tool for Windows? Either a commandline/windows app/script to send the "magic packet" and turn on a computer.
9
votes
6answers
21k views

Can Wake on LAN work on VPN connection?

Is it true that we can’t allow any machine to sleep that may need to be accessed var a VPN connection? (I am asking this on server fault as it is as much about VPN servers as about the end user PCs ...
5
votes
4answers
9k views

Is wireless wake on lan possible?

I don't really have much to add to the question in the title.. Is it possible to wake a computer via a wireless network card? (Assuming that a wireless card doesn't consume enough power to make ...
5
votes
1answer
887 views

What does a magic packet look like?

What does a magic packet contain and what options does the protocol provide?
5
votes
5answers
9k views

How to get Wake-on-LAN working?

I have a PC behind a router with a dynamic IP address that I want to configure for wake-on-LAN. How do I send the magic packet to the PC? Do I configure my router to forward UDP port 6 to the PC? How ...
4
votes
4answers
1k views

Does wake-on LAN/WOL depend on hardware or the operating system?

Does wake-on LAN/WOL depend on hardware or the operating system? Or both? How does one send a command to wake up a machine if it is supported (say a Fedora server)?
4
votes
2answers
2k views

Automatic wake on LAN in Linux when accessing remote filesystem

I have a small server which runs Ubuntu, running webserver and other things, and as such is on 24/7. It also serves as our file server for the majority of frequently used files, serving files through ...
3
votes
3answers
1k views

Use wakeonlan by hostname rather than MAC/IP

I'm setting up a cluster and can wake up individual machines with the command wakeonlan -i 192.168.1.255 [MAC Address] I'd like to be able to do this by hostname instead of MAC, but the config ...
3
votes
1answer
5k views

Can I use wake on lan with VMWare ESXi guests?

I know that I can start the guests from the vmware management interface (vSphere?). Is wol working for the guests?
3
votes
2answers
10k views

Sleep/Suspend and WOL on FreeNAS

I am trying to figure out how to get FreeNAS 8 to sleep when inactive and, ideally, wake on lan activity (or, less ideally, wake on a WOL magic packet). However, as I've tried to search for ...
3
votes
1answer
1k views

Wake OSX 10.8 over WiFi (WoWL - Wake on WiFi Lan)

I have a stack of Apple Mac minis running SSH servers for remote login. The problem is that I can't seem to get them to wake up. From what I gathered, as of Mac OSX 10.7 you required to have a boot ...
3
votes
3answers
9k views

How to forward UDP Wake-on-Lan port to broadcast IP with IPTABLES?

I'm trying to setup Wake-on-Lan for some of the LAN computers at home and it seems that I need to open a UDP port (7 or 9 being the most common) and forward all requests to the broadcast IP, which in ...
3
votes
3answers
942 views

Windows XP Wake-On-Lan problem/question

I've been trying to make wake-on-lan work in Windows XP and I've succeeded partially. If I turn off my computer 'the right way' I can wake the machine using the magic packet without a problem. If I ...
2
votes
4answers
324 views

Does Wake-on-LAN work with non-integrated ethernet adapters?

Interested in the information presented for this question: http://serverfault.com/questions/5931/turn-on-home-computer-remotely but I'm wondering if I absolutely need to use a motherboard integrated ...
2
votes
7answers
533 views

Wake on lan hosts file

Is there any such thing as a file linking MAC addresses to IP addresses / DNS names for use with wakeonlan on Linux? Something like this: $ cat /etc/machosts 00:1f:d0:34:e0:ea 192.168.0.5 00:1f:d0:34:...
2
votes
3answers
7k views

How to get ethtool wake-on-lan setting to “stick”?

I have a couple of machines in my server room normally powered off which it's useful to be able to power up remotely. One of them is an old dual-P3 IBM serverWorks Intel STL2 machine on which wake-on-...
2
votes
3answers
4k views

Make all computers go to sleep and wake up at a certain time?

Is there a way of making all the computers in our domain/environment go to sleep after say, 8PM and wake up at 7AM in the morning? I understand that this may need some sort of application for the ...
2
votes
2answers
3k views

Wake up a client computer from Windows Server

I have a handful of workstations and a Windows Server 2008 R2 in the same LAN. The workstations show up in the server's Active Directory. Is there a way to wake them up manually from the server when ...
2
votes
2answers
570 views

Is it possible to wake a computer connected directly to its NIC?

If two computers are connected by ethernet directly (ie, with no router between them) can one computer wake the other using the magic packet? I ask because it's not working for me and I'm not getting ...
2
votes
1answer
66 views

Is it possible to WOL via OpenVPN?

I am trying to find a way to turn on my work PCs remotely via OpenVPN. The PCs are connected to a router which is on the subnet of another router owned by the people who manage our building. When the ...
2
votes
2answers
2k views

Wake-on-lan to trigger virtual-machine with kvm and libvirt

I'm doing virtualization with KVM and managing it via the Libvirt daemon. How do I configure Libvirt or KVM to listen for Wake-On-Lan packets sent the the Virtual Machine's NIC's MAC address and to ...
2
votes
3answers
1k views

Wake on Lan (WOL)

I'm trying to do a WOL for my Xenserver in my lab environment. However I am not able to do it. I have enable the BIOS settings of the physical server, and from what I can see, even when the server is ...
2
votes
3answers
2k views

Wake all sleeping machines on subnet

Our company just migrated to Windows 7 and decided to use the included "balanced" power plan. The main problem with this is that I use powershell to do remote management and sleeping machines don't ...
2
votes
1answer
584 views

How to enable suspend mode on a Windows Server 2008 R2 box?

I want to use Wake-On-LAN for my two office machines, both of which run Windows 2008 Server R2 (for Hyper-V), but it seems the Server SKU doesn't offer a suspend option anyway. I'm sure it's just a ...
2
votes
1answer
4k views

Event Log “Wake Source” when system wakes from sleep

So I've been troubleshooting sleep timers for our systems and have run across an interesting issue. I need a way to report how long a system was awake after a number of different inputs. Now, I've ...
2
votes
1answer
899 views

ethtool, WOL: What does “wake on physical activity” actually mean and (how) can I use it?

I fighting with the WOL settings of my Ubuntu box at the moment. The idea is to have an HTTP/SVN server to sleep while it's unused and wake up when it's accessed. So far, wake-on-LAN works and is ...
2
votes
1answer
8k views

How to boot up Windows Server 2003 remotely using Wake On LAN?

I'm planning to get my Windows Server 2003 box to boot up using Wake on LAN (WOL), and have a few questions before diving in: Is WOL a feature of Windows, or of the BIOS and network card, or both? ...
2
votes
1answer
903 views

WOL not working with two NIC's

We have recently moved from a windows 2003 server to an 08 R2. Running the program from the command line says that the magic packet has successfully been sent but it never actually reached the ...
1
vote
2answers
4k views

Wake on Lan for Dell Poweredge 2950?

I'm looking into the possibility of using Wake On Lan for a machine used in a test lab to run VMs. It doesn't really need to be on all the time, so it would be nice to be able to power it down when it'...
1
vote
1answer
903 views

Ubuntu: Multiple NICs, one used only for Wake-On-LAN

This is similar to some other questions, but I have a specific need which is not covered in the other questions. I have an Ubuntu server (11.10) with two NICs. One is built into the motherboard and ...
1
vote
4answers
468 views

Wake on lan can public “random person” wake up my web server to view web page

Can i use Wake on Lan on a web server that is a sleep but when the public wants to view my web site it wakes the server up? As this is what i thought it was and was getting very excited but all i ...
1
vote
4answers
4k views

Wake on LAN over different subnets

I have 3 IP blocks and 3 Cisco Switches. Each switch has its own IP block - 10.45.100.0/24, 10.45.101.0/24 and 10.45.102.0/24 I have got a PC on 10.45.100.0/24 block. I can wake up whole computers (...
1
vote
4answers
969 views

wakeup on lan support

I am looking to setup WOL on a set of servers. These are Dell PowerEdge R210 servers running Centos 6.0. I searched the BIOS and I couldnt find the WOL option. My power management in BIOS has only i)...
1
vote
2answers
320 views

Wake On Lan server for a local network - looking for software [closed]

I'm looking for a tool that let me register computers on a network (probably taking them from an LDAP database, that would be gorgeus), and then by using a web interface, wake them by sending a WOL ...
1
vote
2answers
5k views

Send Magic packet from Fortinet Firewall

Is it possible to send a magic packet (WOL) from a fortinet firewall? I read the manual but couldn't find anything, just wondering if anyone achieved something similar. I'm connecting through an ...
1
vote
2answers
111 views

IPMI - is it possible to boot a server

Is it possible to use IPMI to boot a cPCI server with a backplane? (in a similar fashion to Wake-on-LAN)?
1
vote
4answers
1k views

How to stop computer waking up from sleep when LAN connected [closed]

I have a Compaq desktop machine that wakes up from sleep only when the LAN cable is connected to it. The WOL feature is DISABLED in the BIOS, so why does it keep waking up? And why is it getting told ...
1
vote
2answers
9k views

Intel 82579LM Gbit Ethernet Controller - magic packet (WOL) right after ping is not working

I am experiencing a very annoying and mysterious behavior when sending magic packets (for Wake On LAN) shortly after pinging an Intel 82579LM GigaBit Ethernet Controller (the onboard ethernet ...
1
vote
2answers
1k views

Wake On LAN with ubuntu causing constant reboots

I have configured WOL on my Asus E35M-pro. But I have some very weird side affects : Wake on LAN causes GRUB to have no countdown timer when activated unless I use update-grub When I shut the ...
1
vote
2answers
2k views

How to connect to a computer that is in Sleep mode over the internet

How to connect to a computer that is in Sleep mode over the internet? I am using LogMeIn to connect to another computer offsite. I just installed Windows 7 RC on that system and found that the Sleep ...
1
vote
2answers
516 views

Automated Enable of Wake on LAN

Does anyone know of an automated way to enable Wake on LAN capabilities in the BIOS?
1
vote
1answer
639 views

WOL doesn't work if set to anything other than `a` but this setting makes it boot all the time

I manage a small "cluster" of 4 Xeon machines with Intel boards in my lab. They are all plugged to a 5-port 3-Com switch with static IP addresses like 10.0.0.x. They are all running OpenSuse 11.4 and ...
1
vote
2answers
463 views

Wake On LAN behaviour - works intermittently

When I send WoL packets over my network the specified boxes tend to wake up the first time I send the packet each day, but if I turn the box off then subsequent WoL packets tend to be unsuccessful. ...
1
vote
4answers
210 views

automatically backing up data onto another pc

I have a machine running ubuntu server that I have set up to Wake on LAN I also have a few pc running Windows XP. What I want is to set it up so that every day or every time I log in or out, for an ...
1
vote
1answer
57 views

Remote WOL over CISCO/FW not Forwarding

I'm trying to accomplish a Wake-on-LAN by triggering the two servers' public IP addresses. Internally, the WOL works like a charm (by either the internal or external IP), externally however, it does ...