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What are the differences among Port Redirection, Open Ports and DMZ?

The Vigor router supports three types of port mapping methods.

Port Redirection - The packet is forwarded onto a specific local PC with the specified port number. You can also translate the port to another local port.

Open Ports - It is the same as Port Redirection (described above) but allows you to define a range of ports.

DMZ Host - This opens up a single PC completely. All incoming packets will be forwarded onto the PC in the DMZ. The only exceptions are packets received in response to outgoing requests from other local PC's or incoming packets which match rules in the other two methods.

When using combinations of these three methods, there is a priority structure. For example, if a rule in one method coincides with a rule in another method, then follow the strict precedence: Port Redirection >> Open Ports >> DMZ.

 

See also:

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