Forum Discussion
mihaic
Nov 24, 2022MVP
Some devices send ARP unicast request to refresh their arp entry.
So they send it to the mac address they know before it times out.
Check these documents:
https://www.ietf.org/rfc/rfc1122.txt search for "Unicast Poll"
https://community.cisco.com/t5/switching/router-arp-request-unicast/td-p/1479724