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    Multicast issue - IGMP on switches (HP)

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    FOG Problems
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    • george1421G
      george1421 Moderator
      last edited by

      Is the fog server and the target computers on the same IP subnet?

      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
      • F
        Flavalf
        last edited by

        As I’m not a specialist, yes they are : fogserver is 172.16.1.111 and the dhcp range is
        172.16.13.0 to 172.16.16.255. the dhcp server is a windows 2012 server

        george1421G 1 Reply Last reply Reply Quote 0
        • george1421G
          george1421 Moderator @Flavalf
          last edited by

          @Flavalf What is your subnet mask for both the fog server and the dhcp range. The reason why I ask is that there is a potential for the FOG server to be on another subnet (vlan) than your dhcp clients.

          FOG server
          172.16.1.111

          dhcp range
          172.16.13.0 to 172.16.16.255

          If your subnet mask is something like 255.255.0.0 then what you’ve posted is correct. What I’m trying to understand is if there is a router between the clients and the FOG server. FOG-casting on the same subnet shouldn’t be a problem between subnets then you might have an issue.

          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
          • F
            Flavalf
            last edited by

            On server :

            root@fogserver:~# ifconfig
            eth0      Link encap:Ethernet  HWaddr 44:37:e6:62:7c:8f
                      inet adr:172.16.1.111  Bcast:172.16.255.255  Masque:255.255.0.0
                      adr inet6: fe80::4637:e6ff:fe62:7c8f/64 Scope:Lien
                      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
                      RX packets:45004809 errors:0 dropped:4 overruns:0 frame:0
                      TX packets:3727057 errors:0 dropped:0 overruns:0 carrier:0
                      collisions:0 lg file transmission:1000
                      RX bytes:3524256236 (3.2 GiB)  TX bytes:126333435337 (117.6 GiB)
                      Interruption:17
            
            lo        Link encap:Boucle locale
                      inet adr:127.0.0.1  Masque:255.0.0.0
                      adr inet6: ::1/128 Scope:Hôte
                      UP LOOPBACK RUNNING  MTU:16436  Metric:1
                      RX packets:122881 errors:0 dropped:0 overruns:0 frame:0
                      TX packets:122881 errors:0 dropped:0 overruns:0 carrier:0
                      collisions:0 lg file transmission:0
                      RX bytes:14737940 (14.0 MiB)  TX bytes:14737940 (14.0 MiB)
            

            On client ( in debug task) :
            0_1495561745421_Capture.PNG

            1 Reply Last reply Reply Quote 0
            • F
              Flavalf
              last edited by

              Test with 1 client :

              multicast.log

              [05-23-17 8:01:32 pm] * No tasks found!
              [05-23-17 8:01:22 pm] * No tasks found!
              20:01:12.912924 
              20:01:12.912855 Transfer complete.
              20:01:12.909402 Disconnecting #0 (172.16.13.207)
              20:01:12.598314 Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
              [05-23-17 8:01:12 pm] * No tasks found!
              20:01:06.531724 Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
              [05-23-17 8:01:02 pm] * No tasks found!
              20:01:00.465126 Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
              20:00:54.398543 Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
              [05-23-17 8:00:52 pm] * No tasks found!
              20:00:48.331956 Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
              20:00:42.265365 Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
              [05-23-17 8:00:42 pm] * No tasks found!
              20:00:40.198868 Timeout notAnswered=[0] notReady=[0] nrAns=0 nrRead=0 nrPart=1 avg=10000
              20:00:40.108834 Starting transfer: 00000009
              [05-23-17 8:00:32 pm] * No tasks found!
              20:00:24.781281 Broadcasting control to 172.16.255.255
              20:00:24.781257 UDP sender for /opt/fog/.fogsettings at 172.16.1.111 on eth0 
              20:00:24.781134 Using mcast address 236.16.1.111
              
              

              On server and client :

              0_1495562681483_Capturemulti.PNG

              george1421G 1 Reply Last reply Reply Quote 0
              • george1421G
                george1421 Moderator @Flavalf
                last edited by

                @Flavalf I just chatted with one of the devs and he recommended that you test the 1.4.1RC0 inits. There was a fix put into those inits to address a multicasting issue. Your issue sounds similar.

                https://fogproject.org/inits/init.xz
                https://fogproject.org/inits/init_32.xz
                

                Download those and replace the ones on the fog server in /var/www/html/fog/service/ipxe directory.

                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
                • F
                  Flavalf
                  last edited by

                  I’ve replaced the files in /var/www/html/fog/service/ipxe ( no need to reboot I guess ? )
                  I’ve rebooted the client and … get the same issue 😥
                  I don’t know if it’s normal or not but I can’ t ping 224.0.0.1 from the client :
                  0_1495567311380_Capture.PNG

                  1 Reply Last reply Reply Quote 0
                  • F
                    Flavalf
                    last edited by

                    Hi, feedback on my issue : it was ( as usual ) a network cause.
                    IGMP was enable on switches but no switch was querier and no multicast group has been set.

                    Now , the 1 client test is ok, I can go further and make it works !
                    Thanks for support.

                    1 Reply Last reply Reply Quote 1
                    • S
                      Sebastian Roth Moderator
                      last edited by

                      @Flavalf Thanks for keeping us posted on this. This is very helpful information for others having issues with multicast!

                      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

                      F 1 Reply Last reply Reply Quote 0
                      • F
                        Flavalf @Sebastian Roth
                        last edited by Flavalf

                        @Sebastian-Roth You’re welcome …
                        For info, my switches are HP Procurve and I used these links to configure them !

                        https://community.spiceworks.com/how_to/26481-enable-igmp-on-hp-procurve

                        http://whp-hou9.cold.extweb.hp.com/pub/networking/software/AdvTraff-Oct2005-59908853-Chap04-IGMP.pdf

                        Now, Multicast is working properly : I imaged 3 clients at 1.4 Gb/min, next I will try 10 or more !

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