that kind of ARP is called - Gratuitous ARP. When a host is added to the network, or changes its network address, it sends a broadcast ARP to inform everybody on the network. If this address is already in use, the relevant host will immediately inform about it.
Picking pebbles on the shore of the networking ocean
Re: what is ARP message called after DHCP Handshakes.
12 years 3 months ago #16260