TP-Link TL-ER6020 manual 2 Network Topology - NAT Mode, 3 Network Topology - Non-NAT Mode

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 3-3shown, 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 3-4shown, you can set it to Classic Mode.

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