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Multicast Sessions not starting

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  • T
    TC10284
    last edited by Aug 26, 2021, 6:07 PM

    Hello,

    I have a 21 computer Multicast session. All PCs are joined to the session fine, but they are all sitting on the Partclone blue/gray screen saying:
    “Starting to restore image (-) to device (/dev/sda1) note: Storage Location 10.80.50.7:/images/, Image Name Net225-226-Windows10Pro”

    The FOG server is on a separate VLAN - 10.80.50.0/24 and the workstations are on 10.80.128.0/24.
    Two Cisco switches. There should be not known filtering or blocking of multicast traffic, unless I need to change something on the switches. I can provide the switch config if needed.

    G 1 Reply Last reply Sep 1, 2021, 4:11 PM Reply Quote 0
    • T
      TC10284
      last edited by Aug 31, 2021, 2:28 PM

      I tried grouping them all and then starting the task, but same result.
      https://community.spiceworks.com/topic/261521-multicasting-in-fog-how-to-do-it

      1 Reply Last reply Reply Quote 0
      • E
        EduardoTSeoane
        last edited by EduardoTSeoane Sep 1, 2021, 1:54 AM Sep 1, 2021, 7:54 AM

        I think the easiest solution is to install a node on that vlan and routing between master/node, and configure a dhcp to use that node as bootserver.

        1 Reply Last reply Reply Quote 0
        • S
          Sebastian Roth Moderator
          last edited by Sep 1, 2021, 11:44 AM

          @TC10284 Multicast across VLANs/subnets needs special configuration in the switches. This is not a FOG issue really.

          Web GUI issue? Please check apache error (debian/ubuntu: /var/log/apache2/error.log, centos/fedora/rhel: /var/log/httpd/error_log) and php-fpm log (/var/log/php*-fpm.log)

          Please support FOG if you like it: https://wiki.fogproject.org/wiki/index.php/Support_FOG

          E 1 Reply Last reply Sep 1, 2021, 12:54 PM Reply Quote 0
          • E
            EduardoTSeoane @Sebastian Roth
            last edited by Sep 1, 2021, 12:54 PM

            @sebastian-roth @TC10284 Exactly, but like vlans acts as separated networks, the easiest solution is to configure a node on local vlan and open comunications through firewall between node and master using the Location plugin, so you have configured your system working on the two vlans.

            1 Reply Last reply Reply Quote 1
            • G
              george1421 Moderator @TC10284
              last edited by george1421 Sep 1, 2021, 10:12 AM Sep 1, 2021, 4:11 PM

              @tc10284 said in Multicast Sessions not starting:

              The FOG server is on a separate VLAN - 10.80.50.0/24 and the workstations are on 10.80.128.0/24.
              Two Cisco switches. There should be not known filtering or blocking of multicast traffic, unless I need to change something on the switches. I can provide the switch config if needed.

              Be aware that unless you have a multicast router in place this will not work. standard IP routers will not forward multicast packets between subnets. you need an mrouter for that. Multicast imaging is really a different kind of bird. You should have igmp snooping enabled on your switches and if your switches support it on the correct vlans too, to avoid flooding your network with multicast packets.

              Also only “normal” fog servers can send multicast images. Storage nodes can’t do this in the current release of FOG.

              Please help us build the FOG community with everyone involved. It's not just about coding - way more we need people to test things, update documentation and most importantly work on uniting the community of people enjoying and working on FOG!

              1 Reply Last reply Reply Quote 0
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