[CentOS] ip6tables on C7

Fri Oct 26 15:25:23 UTC 2018
mark <m.roth at 5-cent.us>

Working on a script, and to test, I need to shut down ip6tables
temporarily. firewalld is running; is there any way to shut down *just*
ip6tables?

I tried installinf iptables-services, and did a systemctl stop ip6tables,
and no joy.

     mark