Duplicate IP

[rk6171485]

IPv4: Duplicate IPv4 address 192.168.47.253 is detected on VLAN 40 with a MAC address of 3ca82a-310b00 (2 times in
60 seconds).

kindly provide the best solution

[marce1000]

  - Track down the offending mac address by examining mac address tables on switches , start with the core , according to https://macaddress.io/ , the offending mac address belongs to an HP computer ,

 M.

[Joseph W. Doherty]

"offending mac address belongs to an HP computer"

True, assuming LAA isn't being used (which is probably the case).

If a HP computer, possible a server with a hard coded IP and most user hosts get their IPs via DHCP, which tries to insure this doesn't happen for DHCP allocated IPs.