Current File : //lib/firewalld/services/llmnr.xml
<?xml version="1.0" encoding="utf-8"?>
<service>
  <short>Link-Local Multicast Name Resolution (LLMNR)</short>
  <description>LLMNR allows both IPv4 and IPv6 hosts to perform name resolution for hosts on the same local link.</description>
  <port protocol="tcp" port="5355"/>
  <port protocol="udp" port="5355"/>
</service>