hpicfDhcpv4ServerNotifyDuplicateIpAddr 1.3.6.1.4.1.11.2.14.11.5.1.99.0.1

The IPv4 address found to be a duplicate. Duplicates are detected by servers, which issue an ICMP ECHOREQUEST prior to offering an IPv4 address lease, or by a client issuing a gratuitous ARP message and reported through a DHCPDECLINE message.