Hi, I am trying to run packstack on servers with IPV6 disabled and it is failing I disabled and mask the ip6tables service systemctl status ip6tables ● ip6tables.service - IPv6 firewall with ip6tables Loaded: loaded (/usr/lib/systemd/system/ip6tables.service; disabled; vendor preset: disabled) Active: failed (Result: exit-code) since Thu 2018-12-06 07:55:37 EST; 23min ago Process: 30300 ExecStart=/usr/libexec/iptables/ip6tables.init start (code=exited, status=1/FAILURE) Main PID: 30300 (code=exited, status=1/FAILURE) " PuppetError: Error appeared during Puppet run: 10.10.30.159_controller.pp Error: Systemd start for ip6tables failed! .." ops-ctrl-new systemd: Binding to IPv6 address not available since kernel does not support IPv6. Dec 6 08:23:27 ops-ctrl-new systemd: Binding to IPv6 address not available since kernel does not support IPv6. Dec 6 08:23:27 ops-ctrl-new systemd: Starting IPv6 firewall with ip6tables... Dec 6 08:23:27 ops-ctrl-new ip6tables.init: ip6tables: Applying firewall rules: ip6tables-restore v1.4.21: ip6tables-restore: unable to initialize table 'filter' Dec 6 08:23:27 ops-ctrl-new ip6tables.init: Error occurred at line: 4 Dec 6 08:23:27 ops-ctrl-new ip6tables.init: Try `ip6tables-restore -h' or 'ip6tables-restore --help' for more information. Dec 6 08:23:27 ops-ctrl-new ip6tables.init: [FAILED] Dec 6 08:23:27 ops-ctrl-new systemd: ip6tables.service: main process exited, code=exited, status=1/FAILURE Dec 6 08:23:27 ops-ctrl-new systemd: Failed to start IPv6 firewall with ip6tables. Dec 6 08:23:27 ops-ctrl-new systemd: Unit ip6tables.service entered failed state. Dec 6 08:23:27 ops-ctrl-new systemd: ip6tables.service failed. I am sure lots of users do not have IPV6 enabled so Ill appreciate if you could let me know how to solve this issues WITHOUT enabling IPV6 Thanks Steven