ATP500 Arp Spoofing detection

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  • Zyxel_Jeff
    Zyxel_Jeff Posts: 1,333  Zyxel Employee
    100 Answers 500 Comments Friend Collector Fourth Anniversary
    Dear all,

    We are preparing the fixed firmware now, once there is further update and will update it here. Currently, we confirm this symptom doesn't have further service impact, it should be a display issue. Thanks for your understanding and patience in advance.
  • mMontana
    mMontana Posts: 1,428  Guru Member
    Zyxel Certified Network Administrator - Security Zyxel Certified Network Administrator - Switch 50 Answers 1000 Comments
    edited January 2023
    @zyxel_jeff and @Zyxel_Jerry only ZLD 5.xx firmwares are affected?
    This issue will lead to WK/Lab Firmware or an official release?
  • Zyxel_Jeff
    Zyxel_Jeff Posts: 1,333  Zyxel Employee
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    We noticed this issue occurs on V5.35 firmware and we plan to release WK firmware to fix it within the next two weeks.
  • PeterUK
    PeterUK Posts: 3,863  Guru Member
    100 Answers 2500 Comments Friend Collector Seventh Anniversary

    Seeing this too on VPN300 and FLEX200

    The issue seems to happen then the USG sends a broadcast ARP to a IP.


  • Vagabound
    Vagabound Posts: 45  Freshman Member
    First Answer First Comment Friend Collector Second Anniversary
    Here the same problem with USG Flex 200 with firmware V5.35.

  • Zyxel_Jeff
    Zyxel_Jeff Posts: 1,333  Zyxel Employee
    100 Answers 500 Comments Friend Collector Fourth Anniversary
    Hi @PeterUK @Vagabound

    Thank you for finding it. We are preparing a fixed weekly firmware now, it should be released within the recent two weeks. Thanks.



  • JohnK
    JohnK Posts: 11  Freshman Member
    First Comment Friend Collector Third Anniversary
    Flex 500, same issue fw 5.35
    When can this be solved?
  • Zyxel_Jeff
    Zyxel_Jeff Posts: 1,333  Zyxel Employee
    100 Answers 500 Comments Friend Collector Fourth Anniversary
    Hi @JohnK

    We plan to release weekly firmware to fix the issue in the recently next two weeks. Thanks.
  • mMontana
    mMontana Posts: 1,428  Guru Member
    Zyxel Certified Network Administrator - Security Zyxel Certified Network Administrator - Switch 50 Answers 1000 Comments
    -6
  • Zyxel_Jeff
    Zyxel_Jeff Posts: 1,333  Zyxel Employee
    100 Answers 500 Comments Friend Collector Fourth Anniversary
    Answer ✓
    Dear all users,

    Please refer to the V5.35 WK06 firmware, this firmware already fixed the issue that there are many IP conflicts messages on the Monitor log. Thanks :) .



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