Method used to check the IP address conflict on the USG2000, USG5000, and USG6000

You can check the IP address conflict on the USG2000, USG5000, and USG6000 as follows:

On the CLI, enter the display logbuffer command. For example:

[USG5500]display logbuffer
Logging buffer configuration and contents:enabled
Allowed max buffer size : 1024
Actual buffer size : 1024
Channel number : 4 , Channel name : logbuffer
Dropped messages : 0
Overwritten messages : 1200
Current messages : 514

%2015-04-24 10:56:26 USG5500 %%01ARP/4/DUP_IPADDR(l): Receive an ARP packet with duplicate ip address 192.168.101.207 from GigabitEthernet0/0/0, source MAC is 3400-a3d9-1897! //The conflicted address is 192.168.101.207.//
%2015-04-24 10:56:21 USG5500 %%01ARP/4/DUP_IPADDR(l): Receive an ARP packet with duplicate ip address 192.168.101.207 from GigabitEthernet0/0/0, source MAC is 3400-a3d9-1897!

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