File cluster.firewalld.xml of Package yast2-cluster

<?xml version="1.0" encoding="utf-8"?>
<service>
  <short>SUSE YaST Cluster</short>
  <description>This allows you to open various ports related to SUSE YaST Cluster module. Ports are opened for mgmtd, hawk, dlm and csync2.</description>
  <port protocol="tcp" port="5560"/>
  <port protocol="tcp" port="7630"/>
  <port protocol="tcp" port="21064"/>
  <port protocol="tcp" port="30865"/>
</service>