Gratuitous and duplicate differences

[Bayu Notonegoro <kotakmilis () gmail com>]

Hi All,Greetings.In wireshark, we can display filter both for arp.isgratuitous and arp.duplicate-address-detected. What 
is the different between both?Arp gratuitous is something to detect the duplicate IP. But when i see the 
duplicate-address-detected, i got confused. From what I see is that both filter give different output.So what are the 
differences?Please help me.TIA

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