这就是说一个数据包从一个未注册地址能够达到一台有注册地址的计算机，但是其响应数据包将会在它到达的第一个路由器就被丢弃 (这里说的是不是用 NAT 的情况，译者) 。

What this means is that a packet from a computer with an unregistered address could reach a registered destination computer, but the reply would be discarded by the first router it came to.

youdao