ND/4/ADDR_DUPLICATE

Message

ND/4/ADDR_DUPLICATE: Received a [PktType] packet with a duplicate IP address [TgtIpv6Address] from the interface [TgtInterfaceName]. (ReceiveIfName=[LocInterfaceName], SourceMacAddress=[SrcMacAddress], DestinationMACAddress=[DstMacAddress], SourceAddress=[SrcIpv6Address], DestinationAddress=[DstIpv6Address], PE-VLAN=[PeVLAN], CE-VLAN=[CeVLAN], SelfMacRecv=[SelfLoop], Attempted=[DadAttempts])

Description

The address assigned to an interface failed in address conflict detection.

Parameters

Parameter Name	Parameter Meaning
PktType	Packet type in the received ND message.
TgtIpv6Address	IPv6 address generating the conflict.
TgtInterfaceName	Name of the interface generating the alarm.
LocInterfaceName	Name of the local interface receiving the alarm.
SrcMacAddress	Source MAC address in the received ND message.
DstMacAddress	Destination MAC address in the received ND message.
SrcIpv6Address	Source IPv6 address in the received ND message.
DstIpv6Address	Destination IPv6 address in the received ND message.
PeVLAN	Outer VLAN ID carried in the received ND message.
CeVLAN	Inner VLAN ID carried in the received ND message.
SelfLoop	Self-loop flag in the received ND message.
DadAttempts	Number of attempt times in the received message.

Possible Causes

The IPv6 address configured on the interface has been used by another node.

Procedure

Configure an IPv6 address that does not conflict with the IPv6 addresses of other nodes for the interface.