Chapter
11
NAT Forwarding
The router’s NAT (Network Address Translation) feature makes devices on the LAN use
the same public IP address to communicate with devices on the internet, which protects
the local network by hiding IP addresses of the devices. However, it also brings about
the problem that an external host cannot initiatively communicate with a specified
device on the local network.
With the forwarding feature the router can penetrate the isolation of NAT and allows
devices on the internet to initiatively communicate with devices on the local network,
thus realizing some special functions.
The TP-Link router supports four forwarding rules. If two or more rules are set, the
priority of implementation from high to low is Port Forwarding, Port Triggering, UPNP
and DMZ.
It contains the following sections:
•
Share Local Resources on the Internet by Port Forwarding
•
Open Ports Dynamically by Port Triggering
•
Make Applications Free from Port Restriction by DMZ
•
