Basic NAT
NAT Theory
NAT Terminology
Consider Figure 12-3, which shows a basic NAT topology.
Figure 12-3 Basic NAT Topology
In the topology, two clients, with private IP addresses of 10.1.1.1 and 10.1.1.2, want to communicate with a web server on the public Internet. The server’s IP address is 203.0.113.2. Router R1 is configured for NAT. As an example, Router R1 takes packets coming from 10.1.1.1 destined for 203.0.113.2 and changes the source ...
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