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Linux 双网卡开启NAT共享设置

Dec 14, 2006 Web开发

1.设网卡

外网网卡
DEVICE=eth0
IPADDR=(外网IP) NETMASK=255.255.255.0
GATEWAY=(外网网关)
内网
DEVICE=eth1
IPADDR=(内网IP) NETMASK=255.255.255.0

2.打开内核数据包转发功能:echo “1″ > /proc/sys/net/ipv4/ip_forward

3.防火墙设置数据包转发伪装: iptables -t nat -A POSTROUTING -s 192.168.0.0/24 -o eth1 -j SNAT –to-source (外网IP)

注:这里的192.168.0.0/24是指内网的子网,如果你的内网网段是192.168.1.1-192.168.1.255 那就得是192.168.1.0/24

大功告成！

This entry was posted on 星期四, 12月 14th, 2006 at 9:42 am and is filed under Web开发. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

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