Bedienungsanleitung Linksys E1550 Wireless-N Router (Seite 43 von 55) (Englisch)

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Port Forwarding and Port Triggering

Linksys E1550

How to set up port forwarding for multiple ports

Why would I set up port forwarding for multiple ports? Port forwarding is

a feature that forwards inbound traffic from the Internet on a specific port to

a single device on your local network. Unlike a web camera that typically only

requires a single port to be forwarded, some applications require forwarding

of multiple ports. VNC (Virtual Network Computing) software that allows you to

operate your computer remotely from anywhere on the Internet is an example

of an application that requires multiple ports to be forwarded. To forward to

multiple ports, just create additional entries to forward additional ports to the

same IP address.

Example: You want to set up your computer so you can remotely access it using

VNC software. By default, VNC uses TCP ports 5800 and 5900.

To set up single port forwarding for multiple ports:

Applications & Gaming > Single Port Forwarding

Make sure that the software you want to use has been installed onto a

networked computer.

Log into the browser-based utility (see “How to open the browser-based

utility” on page 14).

Set up DHCP reservation for the IP address of the computer on which

you installed the software. (See “How to set up the DHCP server on your

router” on page 15).

Click the Applications & Gaming tab, then click the Single Port

Forwarding page.

For each entry, enter a descriptive name in the Application Name field.

For each entry, enter in the same port number for the External Port and

the Internal Port.

In the To IP Address field, enter the last three digits of the IP address you

have reserved for the computer you want to forward Internet traffic to.

The rest of the IP address has already been completed for you.

Select Enabled next to the IP Address field.

Click Save Changes at the bottom of the screen.

NOTE

If you want to use software such as VNC on multiple computers,

you will need to reconfigure the default ports that VNC uses on

each additional computer. Then, create additional port forwarding

entries for each additional computer. See your software’s

documentation for help.

How to set up port forwarding for a range of ports

Why would I set up port forwarding for a range of ports? Port forwarding is

a feature that forwards inbound traffic from the Internet on a range of ports to

a single device on your local network. Unlike a web camera that typically only

requires a single port to be forwarded, some applications require forwarding

to a range of ports.

Example: You want to set up your computer so you can use BitTorrent, a

popular peer-to-peer file sharing application. BitTorrent uses port 6881 by

default. If that port is busy, the requesting BitTorrent client tries the next port

in sequence. The most common configuration for home routers with a single

BitTorrent computer is to set up port forwarding using a range of ports starting

with 6881 and ending with port 6889.

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