Wake-on-LAN Issue

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    Wake On Lan issue

    by pvanwelt on Tue Jul 10, 2007 8:51 am

    Hi!

    i'm using Dameware for some time now and it's a great tool to work with.
    But i can't
    wake any system with the WOL feature.

    When i use a dos tool "mc-wol.exe" (downloaded from the internet)
    on the machine it doeswake-up.
    Trying again with dameware it doesn't.

    Can anybody help me out ?

     

    Re: Wake On Lan issue

    by bryan on Thu Jul 12, 2007 6:18 pm

    Honestly, we use it all the time over here and it works great for us. So it could possibly be the Port that you're using or maybe even the type of Broadcast (i.e. directed vs general). Because according to the MC-WOL documentation they are also sending WOL "Magic Packet" requests, which is exactly what DNTU is using.

    Did you select
    Wake Single or Wake Batch in DNTU? And what port did you specify?
    Also, what is your command line for the MC-WOL utility?

    MC-WOL MAC would be a general broadcast equivalent to DNTU's Wake Batch feature, which broadcasts to the entire subnet.

    MC-WOL MAC /a Broadcast Address would be a directed broadcast equivalent to DNTU's WakeSingle feature, and would only be sent to the broadcast (multicast) address for that specific LANsegment where the destination computer is located. So withn DNTU you would also specify any IP-Address from the same subnet as this remote machine, and also the subnet mask for that segment, then click on the Check button to calculate the Broadcast Address for that LANsegment.

    Additionally, the default port used by DNTU's WOL functionality is
    32767, but you can specify any valid port. So you just have to use a port that's not blocked by any of your routers/firewalls. Many products even use port 0 (zero).

    I hope this helps
    .

    Bryan Brinkman
    Support Engineer

     

     

    Re: Wake On Lan issue

    by pvanwelt on Fri Jul 13, 2007 4:28 am

    Normally i use : mc-wol [MAC] which works perfect.

    I also tried mc-wol MAC /a broadcast which doesn't work.


    In dameware i tried WakeSingle (port0) and (port 32767) which both don't work.
    Also tried
    wake batch which also doesn't work.

    So the only thing that works is : mc-wol [MAC]

     

     


    Re:
    Wake On Lan issue

    by bryan on Fri Jul 13, 2007 8:00 am

    Thanks for the additional info.

    OK, so you are just basically broadcasting to all machines
    on your same subnet, which is equivalent to DNTU's Wake Batch. So I would have to believe this is just a port issue.

    Try using port 65535 instead of 32767, which appears to be the default UDP port MC-WOL uses.

    But you should also be able to use DNTU's
    Wake Single feature as well, unless for some reason your router eats the packet and doesn't forward it back to the machine. Use any IP-Address from this subnet, then 255.255.255.0 (for a full Class C subnet) then click on Check which should calc a Broadcast Address of 192.168.xxx.255 for your current subnet. Then change the port to 65535 and click Wake. If that doesn't work, then also try multiple packets.

    This should also be exactly the same as: MC-WOL /a 192.168.xxx.255

    Bryan Brinkman
    Support Engineer

     

     

    Re: Wake On Lan issue

    by andrepalma on Sat Jan 10, 2009 12:48 pm

    Hi there, i've been start working with DNTU, and it seems to be very powerfull so far.

    At the moment and i dont get a way to get the WOL working
    on my computers. I have some computer in differents subnets, separated by VPN through them.
    For example i have a computer that has the
    machine1:
    ip 10.15.11.240,
    subnet mask 255.255.255.0
    gateway 10.15.11.250.

    That are linked to the subnet where i am, that is
    Machine2:
    ip 10.1.10.160
    subnet mas 255.255.255.0
    gateway 10.1.10.250

    This subnets are fisically separated and linked throw VPNs

    So from the machine2 i cant send the wol magic packet to machine1.

    Even in the same subnet, the one in the machine2, the wol doesnt work like it should.. sometimes it works, sometimes it not...

    Another thing, do you know why the
    wake on lan feature of each favorite machine that we add doesnt save the mac address.
    For example, i add a favorite machine by ip, and the list, if open in the + it brings me the whole features available for that machine, the last one is
    wake on lan, but if i open that it dont have the information for that computer, it just has the information from the last computer or computers that i was to wake up... so i think that it could be a thing to get better or is anything that i was doing wrong.

    I would appreciate help from you that you have much more experience from me.

    Thank you very much,
    Best regards,

    André Palma

     

     

    Re: Wake On Lan issue

    by misga on Wed Jul 21, 2010 2:16 pm

    Make sure to use your correct subnet mask, for me it was generating 255.255.255.0 but we areon a /16 so i had to manually change it to 255.255.0.0 and then click "Check" again. Also it generates the mac address in the incorect forma, example; 00 00 00 00 00 00 It has to be 00-00-00-00-00-00(use dashes instead of spaces). For us the port didnt seem to matter 0 worked just fine.