We have being using the cloudflare name servers so far and i must say it was working fine.
Recently we have installed meraki devices in our infrastructure.
But Cisco meraki devices use the IP 22.214.171.124 for their internal use and they advice the other switches via ARP that they are the destination of the IP 126.96.36.199
Meraki support has confirmed this behaviour.
The consequence is that our servers/workstations are not able to react the cloudflare IP 188.8.131.52
For the moment, our DNS relies only on the IP 184.108.40.206. if it fails, we will be in the dark.
Does Cloudflare provide by chance a third name servers IP that we can use for redundancy purpose?
if not, what other name servers shall we use? openDNS, google, other?