TP-Link TL-ER604W User Manual page 14

Figure 3-2 Network Topology - NAT Mode
If your Router is connecting the two networks of different areas in a large network environment with a
network topology as the Figure 3-3 shown, and forwards the packets between these two networks by
the Routing rules, you can set it to Non-NAT mode.
Figure 3-3 Network Topology – Non-NAT Mode
If your Router is connected in a combined network topology as the Figure 3-4 shown, you can set it to
Classic Mode.
Figure 3-4 Network Topology – Classic Mode
Choose the menu Network→System Mode to load the following page.
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