Bedienungsanleitung Trendnet TEW-751DR (Seite 36 von 61) (Englisch)

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TRENDnet User’s Guide

TEW-751DR

Open a device on your network to the Internet

This router can provide access to devices on your local area network to the Internet

using the Virtual Server, Special Application, method (DMZ NOT recommended).

DMZ

Access > Firewall & DMZ

You may want to expose a specific computer or device on your network to the Internet

to allow anyone to access it. Your router includes the DMZ (Demilitarized Zone) feature

that makes all the ports and services available on the WAN/Internet side of the router

and forwards them to a single IP address (computer or network device) on your

network. The DMZ feature is an easy way of allowing access from the Internet however,

it is a very insecure technology and will open local area network to greater threats from

Internet attacks.

It is strongly recommended to use Virtual Server (also called port forwarding, see

“Virtual Server

” on page 36) to allow access to your computers or network devices from

the Internet.

1. Make the computer or network device (for which you are establishing a DMZ link) has

a static IP address. Signing up for a Dynamic DNS service (outlined in

Identify Your

Network section page 33) will provide identification of the router’s network from the

Internet.

2. Log into your router management page (see “Access your router management page”

on page 25).

3. Click on Access, and click on Firewall & DMZ.

4. Select Enable in the DMZ Host section.

5. Enter the IP address you assigned to the computer or network device to expose to the

Internet. Note: You can also click the Computer Name drop-down list to select a

computer from your DHCP client list and click << to copy information into the field.

6. To save changes, click Save Settings.

Virtual Server

Access > Virtual Server

Virtual Server (also called port forwarding) allows you to define specific ports (used or

required by a specific application) and forward them to a single IP address (a computer

or device) on your network. Using this feature is more secure compared to using DMZ

(see “DMZ

” on page 36) in which DMZ forwards all ports instead of only specific ports

used by an application. An example would be forwarding a port to an IP camera

(TRENDnet IP cameras default to HTTP TCP port 80 for remote access web requests) on

your network to be able to view it over the Internet. To open several ports please refer

to “

Port Forwarding” section on page 37.

Since most ISPs constantly change your home IP address, to be able to access the Virtual

Server port(s) from the Internet it is recommended to setup Dynamic DNS service

(outlined in Identify Your Network

section page 33).

1. Log into your router management page (see “Access your router management page

”

on page 25).

2. Click on Access, and click on Virtual Server.

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