After setting up Packetfence (with help from Inverse), we're seeing Duplicate
IP Address messages on Windows hosts on our network (Mostly Windows 7, some
Windows 10).
Microsoft and Cisco both indicate perhaps this message is caused by the "ip
device tracking" feature of Cisco switches (we're using 2960X).
I first set up a "probe delay" on the feature, but that did not resolve the
issue so I completely disabled ip device tracking on the switches.
Hosts on the switches are still receiving the error, but only when our
Packetfence ZEN appliance is up. If I power it off, no one gets the duplicate.
The address reported as duplicate is always "0.0.0.0".
>From windows event log:
"Description:
The system detected an address conflict for IP address 0.0.0.0 with the system
having network hardware address 50-67-AE-17-DB-18. Network operations on this
system may be disrupted as a result."
Which feature of Packetfence could be causing this problem? (I am not running
dhcpd on Packetfence)
Thank you,
Michael R. Haag
Computer Services Technician
Department of Information Technology
Madison County, NY
(315) 366-2204
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