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  3. Active Discovery on 2.0-M4

Active Discovery on 2.0-M4

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  • L
    L
    ladz
    wrote on last edited by
    #1

    Hi,

    at first I installed server 2.0-M4. I setup Active Discovery for two subnets 192.168.10.0/24 and 192.168.11.0/24. The server was in subnet 192.168.10.0/24. Active Discovery found nodes in subnet 192.168.10.0/24 but no node in subnet 192.168.11.0/24. I removed this version and I installed version 1.2.7 with the same settings of Active Discovery. This version found nodes in subnets 192.168.10.0/24 and 192.168.11.0/24 without any problems
    Any idea?

    Thanks
    Ladislav

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    0
    • V
      V
      Victor Kirhenshtein
      wrote on last edited by
      #2

      Hi,

      try to run server with debug level 6 and check what's in the log regarding active discovery.

      Best regards,
      Victor

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      0
      • L
        L
        ladz
        wrote on last edited by
        #3

        Hi,
        I setup debug 6. In log was
        ..
        Starting active discovery check on range 192.168.11.1 - 192.168.11.255
        Active discovery - node 192.168.11.127 responds to ICMP ping
        ..
        Finished active discovery check on range 192.168.11.1 - 192.168.11.255
        ..

        192.168.11.127 was only one address from subnet 192.168.11.0/24 in log.
        But node 192.168.11.127 doesn't exist. For example it exists node 192.168.11.34 but server didn't check it. I tried to ping from server to 192.168.11.127 - no response and to 192.168.11.34 - response Ok.

        Thank you

        Ladislav

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        • V
          V
          Victor Kirhenshtein
          wrote on last edited by
          #4

          Hi,

          there is a bug in active discovery code (it was brojken when we add IPv6 support in 2.0-M3). I fix it in 2.0-M5.

          Best regards,
          Victor

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          0
          • L
            L
            ladz
            wrote on last edited by
            #5

            Hi,

            version 2.0-M5 partly helped. I checked log and server found nodes from subnet 192.168.11.0/24 (but every node has MAC 000000000000  - ?) , but the server didn't add them to NetXMS

            Thanks

            Ladislav

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            0
            • V
              V
              Victor Kirhenshtein
              wrote on last edited by
              #6

              MAC address will be all 0s if node do not have SNMP nor NetXMS agent. If node will be added to NetXMS MAC address will be replaced with correct one read from ARP cache later on. Do you have sny discovery filters that may prevent nodes from being added?

              Best regards,
              Victor

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              0
              • L
                L
                ladz
                wrote on last edited by
                #7

                Hi,

                at first I had no filter. And I also tried to setup filter only for subnet 192.168.11.0/24. But situation was the same in both cases.

                Ladislav

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                • V
                  V
                  Victor Kirhenshtein
                  wrote on last edited by
                  #8

                  Could you please share screenshot of your network discovery configuration (hide community strings, etc. as necessary) and piece of log when server founds nodes using ping?

                  Best regards,
                  Victor

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