CCN consists of one CN node and two PN nodes.
Full mesh connection should be made between CNs.
So, You need to configure the firewall to allow ingress between nodes.
32323-32324
and UDP 32323
to your firewall ingress rule.
You can see the Klaytn Design more detailed on the page below.
https://docs.kaia.io/learn/consensus-mechanism/
If you finish this step, please click the next button >
on the right side of this page.