Multicast Wake on LAN with Fujitsu Lifebook E556



  • Hello everybody,

    I have the following problem: When I start a multicast session with about 25 computers, the WOL does not work on some computers. I have to start them manually. Sometimes non of them boots, sometimes all. I can´t figure out, why. The fewer computers in the group, the sooner it will work.

    FOG 1.4.0

    By the way: can I safely update to the current version?



  • So I looked at the file with my wireshark at home (forbidden in office)
    There´s no data.

    I will set up a new fog from scratch and try to WOL the devices. I will report later.



  • I will upload the file on my homepage later.



  • @sebastian-roth said in Multicast Wake on LAN with Fujitsu Lifebook E556:

    @Deimos What do you mean by file is crashed. The dump file is not ascii readable text but a binary format. You need to load that in wireshark for example. Or upload to your gdrive/dropbox and post a link so we can have a look.

    It´s only 1KB and the message after stopping the process is

    Last login: Fri Feb 16 08:28:52 2018 from CLIENT.DOMAIN
    [root@fog-sig-bund-de ~]# sudo tcpdump -w /tmp/wol.pcap
    tcpdump: listening on nflog, link-type NFLOG (Linux netfilter log messages), cap ture size 262144 bytes
    ^C0 packets captured
    0 packets received by filter
    0 packets dropped by kernel
    [root@fog-sig-bund-de ~]#

    I am not sure if this is expected.


  • Developer

    @Deimos What do you mean by file is crashed. The dump file is not ascii readable text but a binary format. You need to load that in wireshark for example. Or upload to your gdrive/dropbox and post a link so we can have a look.



  • So, now none of the clients are booting with WOL.

    Restarted service FOGMulticastManager.

    tcpdump doesn´t make any other log either.



  • The command tcpdump -w /tmp/wol.pcap port 9 doesn´t work. Error message:
    “NFLOG link-layer type filtering not implemented.”

    With command tcpdump -w /tmp/wol.pcap it works.
    But the file is crashed.
    Content: "Ôò¡   ï "

    I´ll try again and wait till the four WOL-working clients are deploying.



  • Today is test day.

    I have five devices where WOL used to work, and five devices that do not mess with WOL. I will group these together and then start a multicast task with the processes mentioned by @SebastianRoth in the background.

    Also I will test a multicast WOL with our HP ProBooks 650G1.


  • Developer

    @deimos I guess we need to get a packet dump of the WOL packets to rule out FOG being the issue. Please install tcpdump and then run tcpdump -w /tmp/wol.pcap port 9 (as root - leave the command running). This will only capture WakeOnLAN packets. Then schedule a Multicast Task for your 25 clients and wait for most of them to boot up, then stop tcpdump (ctrl + c). Please upload the wol.pcap to your dropbox/fileshare and post a link here.



  • A simple test environment did not make things easier. All 6 computers have deployed via WOL in multicast without difficulty.

    Previously, when multicast with about 25 computers some have failed at the WOL, and I can´t say what it might have been. All computers have identical settings in the BIOS, all had the same image history etc.

    I’ll keep working on it.

    Maybe it´s still a 1.4.0 problem. I’m a little bit scared to update the FOG, because failure would have serious consequences and work, and there’s really no time for it.



  • @sebastian-roth said in Multicast Wake on LAN with Fujitsu Lifebook E556:

    Just bumping this so we don’t loose track of it. @Deimos Let us know when you have new information on this.

    Jap, I will. But now we have other FOG problems. “HTTP 500 Internal Server Error”. I will make new thread.


  • Developer

    Just bumping this so we don’t loose track of it. @Deimos Let us know when you have new information on this.



  • @sebastian-roth said in Multicast Wake on LAN with Fujitsu Lifebook E556:

    @Deimos Trying to nail this down at bit more… Can you connect a machine that does not wol to the switch port where the machine wakes up properly?

    As well a question. Do I get this right. Machines waking up do this fine every time you try. And machines that don’t never do wol at all. Or is it a random thing, sometimes works and then not for the same machine?

    I’ll test that as soon as the stressful exam time is over. In February I will start a comprehensive test and report the results.


  • Developer

    @Deimos Trying to nail this down at bit more… Can you connect a machine that does not wol to the switch port where the machine wakes up properly?

    As well a question. Do I get this right. Machines waking up do this fine every time you try. And machines that don’t never do wol at all. Or is it a random thing, sometimes works and then not for the same machine?



  • @george1421 said in Multicast Wake on LAN with Fujitsu Lifebook E556:

    @deimos So you say they all have the same version of bios installed. Are there updates available that may fix wol? I’m running out of ideas here, I don’t think its a fog issue at this point.

    I´ll report, if I figured out the reason. I now do not think its a fog issue, too.


  • Moderator

    @deimos So you say they all have the same version of bios installed. Are there updates available that may fix wol? I’m running out of ideas here, I don’t think its a fog issue at this point.



  • @george1421 said in Multicast Wake on LAN with Fujitsu Lifebook E556:

    @deimos What about bios/firmware versions. Are they all the same?

    The other thing we are seeing is if they are win10, windows shutdown sometimes stop WOL. We have seen that if the computer is shutdown by removing power and then repowering the computer WOL works, but if you shutdown from win10 running no WOL on the same computer. It has to do with the win10 fast startup feature. This would cause the condition that sometimes WOL would work and other times not work on the same computer.

    I have to say that originally there was a windows 10 OS on board (retail original packaging), but we installed win7 and captured image from this.

    BIOS has to be the same. They are student devices. I took a look at the bios settings from a device WOL is not working, but there are equal settings to a device working well.


  • Moderator

    @deimos What about bios/firmware versions. Are they all the same?

    The other thing we are seeing is if they are win10, windows shutdown sometimes stop WOL. We have seen that if the computer is shutdown by removing power and then repowering the computer WOL works, but if you shutdown from win10 running no WOL on the same computer. It has to do with the win10 fast startup feature. This would cause the condition that sometimes WOL would work and other times not work on the same computer.



  • @george1421 said in Multicast Wake on LAN with Fujitsu Lifebook E556:

    @deimos said in Multicast Wake on LAN with Fujitsu Lifebook E556:

    Fujitsu Lifebook E556

    Just for clarity “only” that computer fails to WOL where you have other models that do WOL OK?

    Yes, also other models, e.g. HP ProBook 650 G1 are working well.



  • @george1421 said in Multicast Wake on LAN with Fujitsu Lifebook E556:

    @deimos said in Multicast Wake on LAN with Fujitsu Lifebook E556:

    Fujitsu Lifebook E556

    Just for clarity “only” that computer fails to WOL where you have other models that do WOL OK?

    YES. That´s the miracle.
    Some start in single deploy, some do not. Some start in a multicast session, some do not.
    Configuration is: WOL enabled in all devices.


 

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