Hi all,
my customer has added IPv6 to their BYOD WLAN subnet and are seeing the following log messages on their Cat6k syslog
%IPV6_ND-6-DUPLICATE_INFO: DAD attempt detected for FE80:: on VlanABC
%IPV6_ND-6-DUPLICATE_INFO: DAD attempt detected for FE80:: on VlanXYZ
%IPV6_ND-4-DUPLICATE_OPTIMISTIC: Duplicate address FE80:: on VlanYYY
%VRRS-6-INFO: Internal info, VlanABC: Duplicate address detected on the network FE80:: -Process= "IPv6 Input", ipl= 0, pid= 577
The FE80:: is their LL-HSRP IPv6 address for these vlans . It seems that quite a number of clients is probing the RA address.
my customer is querying if there is a way to disable this?
any advice please?
thanks in advance
Lance
