Step 4. Identify which interfaces are inside, in relation to NAT; that is, any interface that connects to the inside network.
Step 5. Identify which interfaces are outside, in relation to NAT; that is, any interface that connects to the outside network.
Figure 2 shows an example topology and configuration. This configuration allows translation for all hosts on the 192.168.0.0/16 network, which includes the 192.168.10.0 and 192.168.11.0 LANs, when they generate traffic that enters S0/0/0 and exits S0/1/0. These hosts are translated to an available address in the pool in the range 209.165.200.226 - 209.165.200.240.
Figure 3 shows the topology used for the Syntax Checker configuration. Use the Syntax Checker in Figure 4 to configure dynamic NAT on R2.