/lib/firewalld/services/gre.xml
<?xml version="1.0" encoding="utf-8"?>
<service>
<protocol value="gre"/>
<module name="nf_conntrack_proto_gre"/>
</service>
Anon7 — 2022 •
AnonSec Team
<?xml version="1.0" encoding="utf-8"?>
<service>
<protocol value="gre"/>
<module name="nf_conntrack_proto_gre"/>
</service>