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DI-1162 Remote Access Router
In the Outgoing Data Packet above, the Source IP address is the IP
address that is translated by NAT. The Destination IP Address is the IP
address of a computer outside the private network, on the Internet for
example. And the Data portion of the packet is the information payload
borne by the packet, for instance a request to view a web page.
The router logs the changes made to the IP header in its NAT table.
The NAT table enables the router to send replies back to the local
computer as shown below.
In the Inbound Data Packet above, the Destination IP Address is the IP
address that is translated by NAT. The Source IP Address is the IP
address of a computer outside the private network. And the Data
portion of the packet is the information payload borne by the packet, in
this case, web page contents.
The actual information in the NAT table depends whether the router is
implementing NAT or NAPT.
NAT
This section discusses the NAT protocol as opposed to NAPT which is
discussed in the next section.
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Configuration and Management
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