We fixed problem with ICMP monitoring on IPv6-enabled hosts in Nagios but we nous need to make sure we monitor IPv6 access too.
I added IPv6 on the monitoring host and in the DNS and restarted the services and it seems to work fine.
Now we need to add IPv6 ICMP check for hosts supporting it. I’m not sure how to exclude IPv4-only hosts.
Also others tests might be good to split too, like http checks and we need to identify them.