Netgear R6300 — настройка маршрутизатора: Портовое перенаправление и триггеры [94/127]

Превью страниц Страница 94 / 127

Advanced Settings

R6300 WiFi Router 802.11ac Dual Band Gigabit

 To make a local web server public:

1. Assign your web server either a fixed IP address or a dynamic IP address using DHCP

address reservation. In this example, your router always gives your web server an IP

address of 192.168.1.33.

2. In the Port Forwarding/Port

Triggering 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 t

use the name as described in Dynamic DNS on page 96. To access your web server from

the Internet, a remote user has to know the IP address that your ISP assigned. 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 dif

ferent 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 traf

fic 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 101.

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

number of the outbound port that will trigger the opening of the inbound ports.

You can

usually get this information by contacting the publisher of the application or user groups or

newsgroups.