/usr/lib/firewalld/icmptypes/ Current File: //usr/lib/firewalld/icmptypes/address-unreachable.xml

<?xml version="1.0" encoding="utf-8"?>
<icmptype>
  <short>Address Unreachable</short>
  <description>This error message is generated by a router, or by the IPv6 layer in the originating node, in response to a packet that cannot be delivered to its destination address for reasons other than congestion.</description>
  <destination ipv4="no"/>
  <destination ipv6="yes"/>
</icmptype>