ip6tables-restore -V (return code: -15)
ip6tables-restore: unrecognized option '--version'
ip6tables-restore --help (return code: 1)
Usage: ip6tables-restore [-c] [-v] [-t] [-h]
[ --counters ]
[ --verbose ]
[ --test ]
[ --help ]
[ --noflush ]
[ --modprobe=<command>]