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TCP Xmas tree dropped, TCP Null flag dropped - recommendations

Hi Guys,

Reviewing sonicwall logs and I noticed and found that I have since last week, TCP Xmas tree dropped, TCP Null flag dropped. in all cases its coming from almost same IP, from China.

I know that firewall dropped it, however wanted to see if there is anything else I should look into regarding this before moving on?

I have GEO setup to block China, however still getting this scans. it seems that GEO not blocking China IPs?


Category: Firewall Security Services


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