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12

According to AMD's spec the destination doesn't have to be the all-ones address. It can also be the receiving station's address or a multicast address. The payload is a different story. It must be the sequence ff:ff:ff:ff:ff:ff followed by the receiving station's MAC address repeated 16 times. The presence of absence of the station's entry in the switch's ...


10

Yes it is, so long as you have a fairly new wireless card - Intel vPro branded machines do have this feature. You could also use Intel AMT (which can be made available over Wireless) to power up machines. Technically, WoWLAN support within the operating system needs to be present as well - Windows 7 comes with this kind of support. ...


10

You can use the PowerCfg utility to find out. It's part of Vista, no need to download it. powercfg -lastwake Will tell you what woke up your laptop. To see all devices that can wake your computer, try: powercfg -devicequery wake_armed You can turn all these devices off with Device Manager, on the Power Management tab. Unselect "Allow this device to ...


10

From the Wikipedia Entry on Wake on LAN The Magic Packet is a broadcast frame containing anywhere within its payload 6 bytes of ones (resulting in hexadecimal FF FF FF FF FF FF) followed by sixteen repetitions of the target computer's MAC address.


10

I'm using WOL, the interface is simple enough but you can do a lot with it. It's a freeware. It might be what's you're looking for.


8

Yes. Since the mappings expire after some time (generally it's 4 hours if I recall correctly), it needs to be broadcast so it has a chance of reaching the target machine after the mappings are gone. Edit: Correction: If the mappings expire, the message is broadcast anyway. The only reason why you would need to use broadcast is in case the machine ...


7

Hardware, and the associated firmware that runs on that hardware. It is OS independent. There are a plethora of WoL utilities to send a "wake up" packet (sometimes called a Magic Packet). Try the port/package management system in your OS (or Google it). It's usually as easy as wol [MAC Address]


7

You could use /etc/rc.local or some system boot scripts, but this wouldn't be the best way to do it. On startup your network interfaces are configured, sure, but there are other times when your network interfaces may be brought up or down and you will need this executed during those times. You want to edit /etc/network/interfaces: You should have a line ...


6

I don't have any issues with using WoL on a Dell R300 running VMware ESXi and that definitely doesn't support hibernation. Enable WoL in the BIOS, power it off and give it a go. If WoL proves awkward the 2900 also supports remote power management via IPMI - if you download the Dell IPMI command line tools and enable the BMC you can check the power state of ...


5

Wake On Lan involves sending a "magic packet" which contains the MAC address of the destination computer. There's a lot of detail here: http://en.wikipedia.org/wiki/Wake-on-LAN The best way to send a WOL request from one Linux box to another is ether-wake. If you're looking for it in Fedora, install the net-tools package: $ yum whatprovides ...


5

It sounds like some reading-up on WOL is probably in order first. Some additional reading about Ethernet, ARP, and UDP/IP is probably in order, too. The WOL behavior in a client is triggered by a "magic packet". The magic packet can be encapsulated in any type of transport (UDP over IP, IPX, etc). The magic packet byte sequence just needs to be in the ...


5

The easiest way to set this up is to disable DHCP on the two wireless routers. Configure the wireless routers with static IP addresses on the LAN ports using the 10.0.10.0 subnet (IPs that aren't being used by DHCP or another device with a static IP). Set the WAN port for DHCP (or set it to another subnet that you'll never use). Then unplug the cable from ...


5

For WOL, you don't need to integrate the interface into the system, it doesn't need an IP address or anything else. All that is needed is that the system wakes up if it receives an WOL signal, which is handled by the BIOS, outside the control of any operating system. So, in Linux just configure only the interface that you need and you are done.


5

To decrypt the boot volume you'll have to use some kind of lights-out management or Intelligent Platform Management Interface (IPMI). This will give you a remote console onto the server so you can type in that passphrase. Common examples of this are the ILO on HP servers or the DRAC on Dell servers. If you're sending a WOL packet, I really doubt there's a ...


4

Servers are designed to be powered on 24x7, so it's not surprising that they lack BIOS support for WOL. In instances where you need to be able to programmatically power on a server, I typically use IPMI, via a remote management card. HP provides this through their iLO cards, and I suspect that Dell does via their DRAC cards as well, but I don't have personal ...


4

I've seen Wake-on-LAN advertised on PCI NIC cards way back when 100MB Ethernet was fairly new at the desktop. Back then, integrated network cards were not yet standard (but becoming so). That said, WoL for non-integrated components is a function of BIOS support. It needs to keep enough power on the peripheral bus, whatever you're using, and needs to allow ...


4

The particular details depend on the OS they are running but the basics are the same -- and simple. shutdown -- a scheduled task is run on each machine at the appropriate time that calls the shutdown command for a clean halt. Use job scheduler or cron, whichever is the one you have. wake up -- all machines will have to support Wake on LAN (WOL) and have it ...


3

Your router is supported by OpenWRT. You can install it on that box and then use ssh (on windows putty) to access your router from anywhere in the world. Then you can run the wakeonlan utility on the box itself to wake up the machine in question. Wake on lan packets only work on a local networks (it is not routable as it is Layer2 traffic). There is an ...


3

Without getting into anything too fancy (for wireless in a business I'd recommend 802.1x with separate authenticated and unauthenticated client VLANS)... I'd highly recommend splitting up your subnets. Even with all of the security, I don't like letting wireless clients have unrestricted access to your wired network, especially if there's anything other ...


3

Old thread but I wanted to chime in because it is still the top rated search result for "wol over vpn". Yes the WOL magic packet is defined within the constrains of layer 2 but this does not mean it cannot be contained inside a network and transport protocol entity which can then be used to route it across the VPN. The reason for this is the "magic" ...


3

Yes, you can use something like [videos] comment = big files path = /mnt/bigserver/videos ... preexec = /usr/local/bin/my_wake-on-lan_and_mount_script -> preexec in samba docs


3

Unfortunately, I don't think there's an easy way to do what you want. Wake-on-LAN (or WOMP) requires a specially formatted packet; by design, it's hard to wake a computer "by accident." Even if you could convince a web browser to include the magic string (which includes your server's MAC address) in the request, it wouldn't work, because the server would ...


3

Some minor bash: $ cat /path/to/machosts macs[mypc1]=00:1f:d0:34:e0:ea macs[mypc2]=00:1f:d0:34:a1:06 $ cat wakeonlan.sh #!/bin/bash . /path/to/machosts echo wakeonlan ${macs[$1]} $ ./wakeonlan.sh mypc1 wakeonlan 00:1f:d0:34:a1:06 This uses bash arrays: http://tldp.org/LDP/abs/html/arrays.html The unix.stackexchange.com site can probably help more ...


3

There is a good Ubuntu wakeonlan package (I'm sure it will be available for other distros). I don't imagine it being too complicated to create a web frontend for this. https://launchpad.net/ubuntu/+source/wakeonlan Also, most Draytek routers have this functionality built in. They maintain a database of IP/MAC pairs and allow you to send out WoL packets with ...


2

I have no experience with Fortinet gear, but if the WoL Packet generation is unsupported by the router in question, the commonly taken approach would be to generate the packet on a different network and let it get routed to the destination. The generating host does not have to be your machine - it can be any host capable of sending packets to the destination ...


2

IPMI is a network protocol. What it CAN do depends not only on it, but also on how it is implemented. if you ahcve a BMC that is workng even if the computer is off AND it allows to power control the machine - yes. This is standard for any BMC I have ever seen, but some cheap out there may not support it. Often you do not use IPMI even most of the time - ...


2

Nope. See, the problem is that this would require something on the computer to listen to a wake up IP packet. SAdly, WakeOnLan support is not based on IP but on special ethernet packets, and those will not traverse the router. If you can log into your router and issue a wake on lan from there, it would work. But then... this is not a professional setup, ...


2

So from everything I have gathered, there is not a way to do this. From what I can tell, the magic packet doesn't differentiate between sleep and powered down. That doesn't mean remote support is impossible. You just have to attack the problem in another direction. The core tool that you have to overcome this limitation is scheduled tasks. When you create a ...


2

This is a fundamental problem: WOL only works inside a subnet, because a WOL magic packet isn't a valid IP packet and therefore is not routable beyound the local LAN. The wikipedia entry outlines a solution for this problem (subnet directed broadcasts), but I've never seen this in action. Another way around the problem might be to create a WOL proxy agent ...


2

If you have three different subnets, those subnets cannot talk to each other without a router. This is 100% deliberate and by design. Your Default Gateway from the machine you're trying to do the WOL from must explicity know how to get to those other subnets, or else it sends your packet out onto the internet, where it will be immediately dropped by your ...



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