[问题求助]用iptables作nat的问题 [复制链接]

1、.你无需.设置 NAT，只需要设置 routing 就可以了<性病>
2、1.11 .和 0.12 的网.关都必须指向这个 Linux.
3、echo 1 >; /p.roc/sys/net/ipv4/ip_forward，需要启用内核的路由转.发功能    外汇

QUOTE:原帖由 "hongw" 发表：


关键是这句，以前系统这句放在rc.local里，我给忘啦。下午在坛子里搜半天关键字iptables都没解决，我真猪头。在次谢谢老大！
   谁教你把这句放在 rc.local里的?

/etc/init.d/rc.net

iptables=/sbin/iptables
iptables --flush -t nat
iptables --t nat -A POSTROUTING -p tcp -o eth0 -j MASQUERADE
iptables --t nat -A POSTROUTING -p udp -o eth0 -j MASQUERADE
iptables --append FORWARD --in-interface eth1 -j ACCEPT
echo 1 >; /proc/sys/net/ipv4/ip_forward
然后让他开机就跑

不用改/etc/sysctl.conf, 这是我的
# Kernel sysctl configuration file for Red Hat Linux
#
# For binary values, 0 is disabled, 1 is enabled.  See sysctl( and
# sysctl.conf(5) for more details.

# Controls IP packet forwarding
net.ipv4.ip_forward = 0

# Controls source route verification
net.ipv4.conf.default.rp_filter = 1

# Controls the System Request debugging functionality of the kernel
kernel.sysrq = 0

# Controls whether core dumps will append the PID to the core filename.
# Useful for debugging multi-threaded applications.
kernel.core_uses_pid = 1

我现在正在使用

QUOTE:原帖由 "ljj1998" 发表：
不用改/etc/sysctl.conf, 这是我的
# Kernel sysctl configuration file for Red Hat Linux
#
# For binary values, 0 is disabled, 1 is enabled.  See sysctl(8) and
# sysctl.conf(5) for more details.

# Controls IP packet forwarding
net.ipv4.ip_forward = 0

# Controls source route verification
net.ipv4.conf.default.rp_filter = 1

# Controls the System Request debugging functionality of the kernel
kernel.sysrq = 0

# Controls whether core dumps will append the PID to the core filename.
# Useful for debugging multi-threaded applications.
kernel.core_uses_pid = 1

我现在正在使用

要么你没看懂楼主要实现什么，要么你是在开玩笑吧？