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 pacemaker-remote, booth, hawk, dlm, csync2 and corosync-qnetd.</description>
  <port protocol="tcp" port="3121"/> <!-- pacemaker-remote -->
  <port protocol="tcp" port="5403"/> <!-- corosync-qnetd -->
  <port protocol="udp" port="5404"/> <!-- corosync -->
  <port protocol="udp" port="5405"/> <!-- corosync -->
  <port protocol="tcp" port="7630"/> <!-- hawk -->
  <port protocol="tcp" port="9929"/> <!-- booth -->
  <port protocol="udp" port="9929"/>
  <port protocol="tcp" port="21064"/> <!-- dlm -->
  <port protocol="sctp" port="21064"/>
  <port protocol="tcp" port="30865"/> <!-- csync2 -->
</service>