Linux shared Internet Settings

1. Turn on the kernel IP forwarding vi/etc/sysctl.conf

Net.ipv4.ip_forward = 1

Execution Sysctrl-p Effective

2, if the host is not enabled firewall, then the following settings iptables

[[email protected] ~] # iptables -f [[email protected] ~] # iptables -p input accept [[email protected] ~] # IPTABLES -P FORWARD ACCEPT  [[email protected] ~] # iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE Or
iptables -t nat -A POSTROUTING -s ip -o eth0 -j MASQUERADE
[[email protected] ~] # /etc/init.d/iptables save [[email protected] ~] # /etc/init.d/iptables restart description:    IPTABLES -F  #清除原有的filter有中的规则      IPTABLES -T NAT -F  #清除原有的nat表中的规则    IPTABLES -P FORWARD ACCEPT  #缺省允许IP转发

If a firewall is enabled on the host, add the following two sentences:

Code:

Iptables-a forward-s 192.168.122.0/24-o eth0-j ACCEPT
Iptables-a forward-d 192.168.122.0/24-m State--state established,related-i eth0-j ACCEPT

Linux shared Internet Settings