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Why is there traffic from and to an external IP address in my network?

Hello all,

Today I wanted to capture some things in my network - but before analizing this capture I immediately saw that there is traffic from and to an external IP address. So neither source IP, nor destination IP is from my network. And non of the IPs is my personal public IP from my ISP.

Here is a picture of my capture: https://gofile.io/?c=40n4ID

Is someone able to explain this behaviour?

I would appreciate any tipps or explanations.

Why is there traffic from and to an external IP address in my network?

Hello all,

Today I wanted to capture some things in my network - but before analizing this capture I immediately saw that there is traffic from and to an external IP address. So neither source IP, nor destination IP is from my network. And non of the IPs is my personal public IP from my ISP.

Here is a picture of my capture: https://gofile.io/?c=40n4ID

It's a lot of traffic, in less than 10 minutes there were more than one million frames just from these two unknown IP addresses.

Is someone able to explain this behaviour?

I would appreciate any tipps or explanations.