Receiving TCP no-Flag attacks

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Receiving TCP no-Flag attacks

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NBAus

2022-01-13 00:47:04

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Registered: 2021-04-29

Receiving TCP no-Flag attacks

2022-01-13 00:47:04

Model: ER605 (TL-R605)

Hardware Version: V1

Firmware Version: 1.1.1

I constantly received 'detected TCP no-Flag attack and dropped 1 packets' alerts from the ER605, about twice a day, everyday. I would like to find out if these are real attacks or misconfiguration somewhere. One WAN and one LAN port are configured in the ER605. How can I find out which interface those no-Flag TCP packets are from?

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Virgo

LV5

2022-01-13 09:25:55

Posts: 2588

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Registered: 2021-05-10

Re:Receiving TCP no-Flag attacks

2022-01-13 09:25:55

@NBAus

This frequency is too low, it is difficult to catch the packet.
If it does not currently affect your network, you can actually default to no problem.

Just striving to develop myself while helping others.

Receiving TCP no-Flag attacks

Receiving TCP no-Flag attacks

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