/usr/lib/firewalld/icmptypes/ Current File: //usr/lib/firewalld/icmptypes/router-advertisement.xml

<?xml version="1.0" encoding="utf-8"?>
<icmptype>
  <short>Router Advertisement</short>
  <description>This message is used by routers to periodically announce the IP address of a multicast interface.</description>
</icmptype>