Edit File: allow-host-ipv6.xml
<?xml version="1.0" encoding="utf-8"?> <policy target="CONTINUE" priority="-15000"> <short>Allow host IPv6</short> <description>Allows basic IPv6 functionality for the host running firewalld.</description> <ingress-zone name="ANY" /> <egress-zone name="HOST" /> <rule family="ipv6"> <icmp-type name="neighbour-advertisement" /> <accept /> </rule> <rule family="ipv6"> <icmp-type name="neighbour-solicitation" /> <accept /> </rule> <rule family="ipv6"> <icmp-type name="router-advertisement" /> <accept /> </rule> <rule family="ipv6"> <icmp-type name="redirect" /> <accept /> </rule> </policy>