/usr/lib/firewalld/services/ Current File: //usr/lib/firewalld/services/nfs3.xml

<?xml version="1.0" encoding="utf-8"?>
<service>
  <short>NFS3</short>
  <description>The NFS3 protocol is used to share files. You will need to have the NFS tools installed and properly configure your NFS server for this option to be useful.</description>
  <port protocol="tcp" port="2049"/>
  <port protocol="udp" port="2049"/>
</service>