IP DAD is a good feature.
We can also use UPM script to avoid duplicate ip in network.
It is quite common scenario to have protection for VRRP gateway to avoid network outage.
These commands are to be applied on edge switch .Core switch has VRRP.
configure log filter DupIP add events FDB.arpViolation create log target upm Disable_DupIP_Port
enable log target upm Disable_DupIP_Port
configure log target upm Disable_DupIP_Port filter DupIP severity Warning
enable ip-security arp gratuitous-protection vlan
enable ip-security arp gratuitous-protection vlan
UPM script
create upm profile Disable_DupIP_Port
set var up1 47
set var up2 48
## please specify the uplink ports as up1,up2..
if ($match($EVENT.LOG_PARAM_3,$up1) && $match($EVENT.LOG_PARAM_3,$up2)) then
disable port $EVENT.LOG_PARAM_3
create log entry "PORT $(EVENT.LOG_PARAM_3) WAS DISABLED DUE TO VRRP VIP CLASH"
endif