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//lib/firewalld/icmptypes/beyond-scope.xml

 <?xml version="1.0" encoding="utf-8"?>
<icmptype>
  <short>Beyond Scope</short>
  <description>This error message is sent if transmitting a package whould cross a zone boundary of the scope of the source address.</description>
  <destination ipv4="no"/>
  <destination ipv6="yes"/>
</icmptype>