QNAP NAS port trunking setup is treated as ARP attack by KES 11.2 MAC spoofing feature

  • 3 July 2020
  • 0 replies

Hi all, 


I am using a QNAP NAS TS-853U-RP, and have already setup the port trunking to all 4 adapters to increase the bandwidth.


While after I updated KES to version 11.2 and turned on MAC spoofing feature, tons of alert prompt out saying that there is “ARP from unexpected source”. I have reviewed the alerts and figured out that the problem source is my NAS and the problem MACs are the MAC addresses of the 2nd and 4th port of my NAS.


Is there any solution or suggestion can be provided to solve this annoying false detection?


Thank you. 

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