Below is a sample row which I am getting from ARP table (of course the side names were putted by me):
IP::192.168.43.184::HW typ::0x1 :: Flags::0x0::HW address::70:bb:c0:bb:99:66 :: Mask:: ::Device::wlan0
I saw the Flag field became 0x2 the moment a device gets connected and it became 0x0 when it gets disconnected (this one does not happen momentarily).
I need to know what the Flag field really means. Is this field really a solid hint to be notified whenever a device is connected to hotspot?
From this answer I got few hints about the Flag. Here Amap said:
FLAGS field, when the value is 0x2 the station is connected and 0x0 is disconnected
I am relying on this Flag for the time being. Yet it is highly appreciated if someone can confirm about the reliability of this field.