Netgear N600 Wireless Dual Band Router WNDR3400v2 User Manual download pdf (Page 89)

Advanced Settings

N600 Wireless Dual Band Router WNDR3400v2

2. In the Port Forwarding screen, configure the router to forward the HTTP service to the local

address of your web server at 192.168.1.33. HTTP (port 80) is the standard protocol for web

servers.

3. (Optional) Register a host name with a Dynamic DNS service, and configure your router to

use the name as described in

Dynamic DNS on page 91. To access your web server from

the Internet, a remote user has to know the IP address assigned by your ISP. However, if

you use a Dynamic DNS service, the remote user can reach your server by a user-friendly

Internet name, such as mynetgear.dyndns.org.

Set up Port Triggering

Port triggering is a dynamic extension of port forwarding that is useful in these cases:

• More than one local computer needs port forwarding for the same application (but not

simultaneously).

• An application needs to open incoming ports that are different from the outgoing port.

When port triggering is enabled, the router monitors outbound traffic looking for a specified

outbound “trigger” port. When the router detects outbound traffic on that port, it remembers

the IP address of the local computer that sent the data. The router then temporarily opens the

specified incoming port or ports, and forwards incoming traffic on the triggered ports to the

triggering computer.

While port forwarding creates a static mapping of a port number or range to a single local

computer, port triggering can dynamically open ports to any computer that needs them and

can close the ports when they are no longer needed.

Note: If you use applications such as multiplayer gaming, peer-to-peer

connections, real-time communications such as instant messaging,

or remote assistance (a feature in Windows XP), you should also

enable Universal Plug and Play (UPnP) according to the instructions

in Universal Plug and Play on page 96.

To set up port triggering, you need to know which inbound ports the application needs. Also,

you need to know the number of the outbound port that triggers the opening of the inbound

ports. You can usually determine this information by contacting the publisher of the

application or user groups or newsgroups.

 To set up port triggering:

1. Select Advanced > Advanced Setup > Port Forwarding/Port Triggering.

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Netgear N600 Wireless Dual Band Router WNDR3400v2 User Manual Page 89