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        "id": "8ec7ac28.6ee2",
        "type": "comment",
        "z": "d039a859.955df",
        "name": "Documentation v.2021-11-19 (Version 4)",
        "info": "v.2021-11-19 (Version 4):\nAdded \"sudo sysctl -p\" to the end of realknx-start\nv.2021-11-19 (Version 3):\nBlock all ipv6 by adding the following lines to end of /etc/sysctl.conf\n - net.ipv6.conf.all.disable_ipv6 = 1\n - net.ipv6.conf.default.disable_ipv6 = 1\n - net.ipv6.conf.lo.disable_ipv6 = 1\nThe reason to block ipv6 is the ping to google.com can pass via ipv6\n\nv.2021-11-16 (Version 2):\n    - Version 1 is at the bottom of the flow\n    - Version 2: add the prevention code directly to the start-realknx bash script. \n    The prevention code does:\n        1) Search for \"Drop icmp\" line in iptables file\n        2) Add the \"Drop icmp\" line if it is not in the iptables file\n        3) Test a ping to google.com and save the result in log file (for debug)\n    \nv.2021-22-14 Added restore flow\nv.2021-22-12 Added\n\nThis flow will disable outgoing ping. This will prevent realKNX from the access of public IP service, which fails and prevents the system from starting.\nThis should solve the issue on all systems, but if you have realKNX 4.6 it is preferred to update the system.\nThis flow has been tested \n* Aragon WL\n\n**When/if the system has been updated to realKNX v4.6.60+**\nyou can remove the fix with the 2nd lower flow",
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        "timer": "",
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        "id": "cf3f8c48.50e0d8",
        "type": "comment",
        "z": "d039a859.955df",
        "name": "Note: the system will Reboot here",
        "info": "",
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        "id": "6018cf64.f30eb8",
        "type": "template",
        "z": "d039a859.955df",
        "name": "Prevention code",
        "field": "payload",
        "fieldType": "msg",
        "format": "text",
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