root@localhost ~]# service iptables restart
iptables: Flushing firewall rules:                         [  OK  ]
iptables: Setting chains to policy ACCEPT: filter          [  OK  ]
iptables: Unloading modules:                               [  OK  ]
'ptables: Applying firewall rules: iptables-restore v1.4.7: iptables-restore: unable to initialize table 'filter
Error occurred at line: 3
Try `iptables-restore -h' or 'iptables-restore --help' for more information.
                                                           [FAILED]
初始化iptables下
iptables -F
service iptables save
service iptables restart

就可以了！加入规则