On 10/26/18, Andrew Pearce <andrew at andew.org.uk> wrote: > On 2018-10-26 16:25, mark wrote: > I believe this should remove any ipv6 rules (rules and chains) > > ip6tables -F > ip6tables -X You might want to clear the other tables, too: for x in filter nat mangle raw security "" do ip6tables ${x:+-t $x} -F ip6tables ${x:+-t $x} -X done > You may need to set the default policies as well, as they I belive are > to deny all incoming and unrestricted outgoing > > ip6tables -P INPUT DROP > ip6tables -P FORWARD DROP > ip6tables -P OUTPUT ACCEPT firewalld appears to leave the policies as ACCEPT, which is their default.