I have a 5 server deployment. Host1 is running the Rancher Server as well as the Rancher/agent and other docker containers.
Containers on the other hosts can ping the Host1, but cannot ping the IP address for ipsec IP on Host1.
Containers on other Hosts can ping the ipsec IP on hosts that are not Host1
Host1 containers cannot ping ipsec IP of other hosts.
There are no errors in the logs for Host1, ipsec and its sidekicks are all green.
Rebooting host did not fix. Restarting ipsec did not fix.
Rancher v1.6.23 running on latest CoreOS Stable.