I was using Wireshark to capture packet on my home network, I got an Macbook Pro capturing those 1658 packets, an PC running and playing youtube, an iPhone open browser and randomly click something, an iPad and an Macbook sleeping.

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It’s interesting I found that dropbox were syncing dramatically when the file exists on my LAN, the frequency is every 30 second.

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And even my sleeping Macbook also get these sync request.

But I capture nothing about my cellphone.

 

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