Tip | Using Wireshark To Detect Duplicate IP Addresses On Your Network.

Updated at February 2nd, 2023


Whether commissioning or troubleshooting a system, duplicate IP addresses can lead to a number of issues. Wireshark is a useful tool for scanning the network for possible issues including duplicate IPs. Use the steps below to scan for these issues.

  1. From the filter dropdown box, select arp.duplicate-address-frame.
  2. Begin a capture, this will display duplicate IP information in the captured frames. Devices with the same IP addresses will show in the capture with different MAC addresses.