XMG1915-10EP - SNMP reports device model as zywall

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matteosaitta
matteosaitta image  Freshman Member
First Comment Friend Collector Seventh Anniversary
edited August 12 in Switch

Hello,

I did some librenms tests yesterday and my xmg1915 reported itself as a zywall over SNMP. Is it a common bug?

Regards,

Matteo

Accepted Solution

  • Zyxel_Luna
    Zyxel_Luna image  Zyxel Employee
    5 Answers First Comment Friend Collector
    edited August 31 Answer ✓
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    Hi @matteosaitta ,

    Root cause: The XMG series are missing from LibreNMS OS detection definitions.

    Please update both configurations (zynos.yaml and zywall.yaml) using the steps below.

    Note: If you have devices such as the CX4800, please remember to add "CX" to zynos.yaml and exclude it from zywall.yaml as well.

    step1. Add XMG to zynos.yaml

    librenms_1.png

    step2. Exclude XMG from zywall.yaml

    librenms_2.png

    Result

    librenms_3.png

    Please feel free to reach out if you have any questions. Thank you!

All Replies

  • Zyxel_Luna
    Zyxel_Luna image  Zyxel Employee
    5 Answers First Comment Friend Collector
    edited August 12
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    Hi @matteosaitta ,

    Which firmware version are you currently on?

    Additionally, could you please let us know which OIDs or MIB file LibreNMS is polling when the device is identified as 'zywall'.

    If you could provide a screenshot showing "zywall", it would greatly help us further analyze and investigate this issue. Thank you!

  • matteosaitta
    matteosaitta image  Freshman Member
    First Comment Friend Collector Seventh Anniversary
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    Hello, firmware version is V4.80(ACGP.3). I will provide a full snmpwalk once i have access to the device and librenms.

  • Zyxel_Luna
    Zyxel_Luna image  Zyxel Employee
    5 Answers First Comment Friend Collector
    edited August 12
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    Hi @matteosaitta ,

    Please first upload the attached 'ZYXEL-ES-COMMON' file to LibreNMS and test again.

    ZYXEL-ES-COMMON.zip

    If it still displays as "zywall", please provide a screenshot showing "zywall". There is no need to provide a full snmpwalk screenshot.

    Thank you for choosing Zyxel products and services. Have a wonderful day!

  • matteosaitta
    matteosaitta image  Freshman Member
    First Comment Friend Collector Seventh Anniversary
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    Screenshot 2026-08-12 alle 17.55.06.png

    Hello, I've replaced the MIB within librenms but the OS is still reported as Zywall. If it can help, every xs1930 and xgs1930 in my possession are correctly reported as a "ZyXEL Ethernet Switch"

  • Zyxel_Luna
    Zyxel_Luna image  Zyxel Employee
    5 Answers First Comment Friend Collector
    edited August 31 Answer ✓
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    Hi @matteosaitta ,

    Root cause: The XMG series are missing from LibreNMS OS detection definitions.

    Please update both configurations (zynos.yaml and zywall.yaml) using the steps below.

    Note: If you have devices such as the CX4800, please remember to add "CX" to zynos.yaml and exclude it from zywall.yaml as well.

    step1. Add XMG to zynos.yaml

    librenms_1.png

    step2. Exclude XMG from zywall.yaml

    librenms_2.png

    Result

    librenms_3.png

    Please feel free to reach out if you have any questions. Thank you!

  • matteosaitta
    matteosaitta image  Freshman Member
    First Comment Friend Collector Seventh Anniversary
    Options

    I can confirm that your solution is correct, thank you! I will try to see if I can manage to get your fix upstream into librenms.

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