地址转换技术是在 IP 地址日渐短缺的情况下提出的，一个局域网内部有很

Address translation technology is proposed when IP addresses are increasingly scarce. There are many devices in a local area network, and it is not guaranteed that each device can have a legal address. In order for all internal devices to connect to the Internet, address translation must be used. . Address translation technology can effectively hide the IP addresses of devices in the internal network. NAT is an effective network security protection technology. Address translation can be provided to external services within the LAN according to the needs of users.

地址转换技术是在 IP 地址日渐短缺的情况下提出的，一个局域网内部有很多台设备，不能保证每台设备都能够拥有合法的地址，为了使所有内部设备都可以连接因特网，就必须使用地址转换。地址转换技术可以有效地隐藏内部网中设备的 ip 地址， NAT 是有效的网络安全保护技术。地址转换可以根据用户的需要，在局域网内部提供给外部服务。

Address translation technology is proposed in the case of increasing shortage of IP address. There are many devices in a LAN, which can not guarantee that each device can have a legal address. In order to make all internal devices can connect to the Internet, address translation must be used. Address translation technology can effectively hide the IP address of devices in Intranet, and NAT is an effective network security protection technology. Address translation can be provided to external services in LAN according to the needs of users.<br>