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313a71ee7b
While the default iptables setup used by Fedora/RHEL distros only restricts traffic on the INPUT and/or FORWARD rules, some users might have custom firewalls that restrict the OUTPUT rules too. These can prevent DHCP/DNS/TFTP responses from dnsmasq from reaching the guest VMs. We should thus whitelist these protocols in the OUTPUT chain, as well as the INPUT chain. Signed-off-by: Malina Salina <malina.salina@protonmail.com> Initial patch then modified to add unit tests and IPv6 support Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>