Linux-设置为-router

参考

开启 IP forwarding

临时开启

修改 /proc/sys/net/ipv4/ip_forward 的值.

查看:

cat /proc/sys/net/ipv4/ip_forward

用 echo 来修改:

# Close
echo 0 > /proc/sys/net/ipv4/ip_forward 
# Open
echo 1 > /proc/sys/net/ipv4/ip_forward

用 sysctl 来修改:

# Close
sysctl -w net.ipv4.ip_forward=0
# Open
sysctl -w net.ipv4.ip_forward=1

永久开启

修改 /etc/syctl.conf 文件.

添加如下:

#Permnanenlty enabling the IP forwarding
net.ipv4.ip_forward = 1
#Permnanenlty disabling the IP forwarding
#net.ipv4.ip_forward = 0