How to flush the ARP cache in various OS (Windows, Linux, AIX)

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ARP (Address Resolution Protocol is the standard method for finding a host’s hardware address when only its network layer address is known.
For all systems, the common way is to reboot but it is not always necessary or possible.

Open cmd.exe and execute the following command:
netsh interface ip delete arpcache
In order to verify before and after the arp table, you can use:
arp -a

# ip -s -s neigh flush all

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