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Guardian or Location AP crashes when nearby device OUI starts with 30:78

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TitleGuardian or Location AP crashes when nearby device OUI starts with 30:78
Symptoms
Guardian or Location AP crashes when nearby device OUI starts with 30:78
Environment
  • ExtremeWireless
  • Firmware 10.41.02
  • Firmware 10.31.01
  • Guardian AP
  • Location services
Cause
Firmware bug 30:78 translates to ASCII 0x which firmware wasn't handling correctly causing the crash
Resolution
Upgrade to 10.31.09, 10.41.03 and higher.
Additional notes
  • Many modern devices randomize their MAC address in order to hide their identity, therefore this issue may occur even if devices with 30:78:xx OUI do not exist.
  • Release Note: wns0019868 - Improved parsing of OUIs starting with an encoding equivalent to “0x”

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