参考答案:
RedHat机器cat /etc/sysconfig/iptables*filter:INPUT ACCEPT [10276:1578052]:FORWARD ACCEPT [0:0]:OUTPUT ACCEPT [13784:16761487]-A INPUT -s 10.0.0.0/255.0.0.0 -i eth1 -j DROP-A INPUT -s 172.16.0.0/255.240.0.0 -j DROP-A INPUT -s 192.168.0.0/255.255.0.0 -i eth1