Sunday, July 28, 2019

[Cisco Meraki] - MX84 reporting IP Conflicts / False positive

Our MX84 is reporting IP conflicts for four NVRs we have. These NVR's are behind a sonicwall. The reason for putting them behind the firewall is so that the MX device doesn't get overworked. We had a serious issue where our internet speeds were being impacted hard by having the MX84 as the gateway for our NVRs(200+ cameras) along with all of our servers.

These notification are seriously annoying, my inbox is just spammed with them. The MX device is reporting an IP conflict with the NVR's and the Sonicwall, however the sonicwall obviously doesn't have the IP of the NVRs. It seems like it is just getting that result because when the MX is looking for these NVRs, it is getting the IP from both the SW and NVRs.

Is there anyway to stop this from happening or at least whitelist this somehow?



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