As you can see, the NAT router stores the IP address and port number of each computer in the address translation table.
正如你所见，NAT路由器将每台计算机的IP地址和端口号都存储在地址转换表中。
Your project comes down to implenting a NAT router.
你的项目来实现NAT路由器。
The NAT router translates traffic coming into and leaving the private network.
NAT路由器传送进出私有网络的示意图。
The NAT router checks the routing table to see if it has an entry for the destination address.
这个nat路由器检查它的路由表，查看有没有包含这个数据包目的地址的条目。
So any external network sees the NAT router's IP address and the port number assigned by the router as the source computer information on each packet.
这样任何一台处于外部网络的计算机都会在发送给它的数据包里找到NAT的IP地址和由路由器分配的端口号。
The NAT router translates the inside global address of the packet to the inside local address and then checks the routing table before it sends it to the destination computer.
NAT路由器将这个数据包中的内部全局地址 (即其目的地址，译者)转换成内部本地地址后再查看路由表。
In the example below the NAT router is configured to translate unregistered IP addresses (inside local addresses) that reside on the private (inside) network to registered IP addresses.
在下面的例子中，nat路由器被配置来将处于私有(内部)网络中的未注册IP地址(内部地址)转换成注册ip地址。
Since the NAT router now has the computer's source address and source port saved to the address translation table, it will continue to use that same port number for the duration of the connection.
由于nat路由器现在已经拥有了这台计算机保存在地址转换表中的的源地址和源端口号，它将会在有效期内继续使用同一个端口号进行转换。
You can create an access list of IP addresses that tells the router which computers on the network require NAT.
你可以创建一个IP地址的访问列表，告诉路由器网路中哪些计算机需要NAT 。
Similarly, those tiny little router/NAT boxes are pretty cool specialized hardware; they're generally fanless and silent with multiple Ethernet ports and sometimes a wireless port.
同样，这些微型的小路由器/NAT盒子是非常酷的专用硬件；它们通常没有风扇，安安静静，而且有多个以太端口，有时还有无线端口。
Lastly, along with campus fact and equipment, using technology of VLAN, NAT, router access-list and network traffic flow monitoring system, we carry out basic security defense of campus network.
最后，结合校园网的实际，根据现有设备条件，运用VLAN技术、NAT技术、路由器访问列表以及流量监控实现了对校园网的基本安全防护。
But NAT implemented with pure software limits the throughput of Router seriously, and becomes the bottleneck of Router performance.
然而纯软件NAT严重影响了路由器报文转发速度，成为路由器性能的瓶颈。
But NAT implemented with pure software limits the throughput of Router seriously, and becomes the bottleneck of Router performance.
然而纯软件NAT严重影响了路由器报文转发速度，成为路由器性能的瓶颈。
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