Netgear 12400226 사용자 설명서
Advanced Settings
58
C3000 WiFi Cable Modem Router
2.
In the Port Forwarding/Port Triggering screen, configure the modem router to forward the
HTTP service to the local address of your web server at 192.168.0.33. HTTP (port 80) is the
standard protocol for web servers.
HTTP service to the local address of your web server at 192.168.0.33. HTTP (port 80) is the
standard protocol for web servers.
3.
(Optional) Register a host name with a Dynamic DNS service, and configure your modem
router to use the name as described in
router to use the name as described in
60. To access your web
server from the Internet, a remote user must know the IP address that your ISP assigns.
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.
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).
simultaneously).
•
An application opens incoming ports that are different from the outgoing port.
When port triggering is enabled, the modem router monitors outbound traffic looking for a
specified outbound “trigger” port. When the modem router detects outbound traffic on that
port, it remembers the IP address of the local computer that sent the data. The modem router
then temporarily opens the specified incoming port or ports, and forwards incoming traffic on
the triggered ports to the triggering computer.
specified outbound “trigger” port. When the modem router detects outbound traffic on that
port, it remembers the IP address of the local computer that sent the data. The modem 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.
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), enable Universal
Plug and Play (UPnP) according to the instructions in
connections, real-time communications such as instant messaging,
or remote assistance (a feature in Windows XP), enable Universal
Plug and Play (UPnP) according to the instructions in
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.
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.
From the Advanced tab, select Advanced Setup > Port Forwarding/Port Triggering.