iptables软路由 FORWARD + MASQUERADE

代码

FORWARD + MASQUERADE

```
sudo ifconfig enp2s0 192.168.2.1 netmask 255.255.255.0
sudo iptables -A FORWARD -i enp2s0 -j ACCEPT
iptables -t nat -A POSTROUTING -s 192.168.2.0/24 -o enp4s0 -j MASQUERADE
```