As you can see, the NAT router stores the IP address and port number of each computer in the addresstranslation 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。
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Since the NAT router now has the computer's source address and source port saved to the addresstranslation table, it will continue to use that same port number for the duration of the connection.