Netgear Orbi AC3000 Tri-band Wi-Fi® Router オーナーマニュアル
Customize Internet Traffic Rules for Ports
98
Orbi High-Performance
AC3000
Tri-band
WiFi
System
How the Router Implements the Port Forwarding Rule
The following sequence shows the effects of a port forwarding rule:
1.
When you type the URL www.example.com in your browser, the browser sends a web
page request message with the following destination information:
•
Destination address. The IP address of www.example.com, which is the address of
your router.
your router.
•
Destination port number. 80, which is the standard port number for a web server
process.
process.
2.
Your router receives the message and finds your port forwarding rule for incoming port 80
traffic.
3.
The router changes the destination in the message to IP address 192.168.1.123 and sends
the message to that computer.
4.
Your web server at IP address 192.168.1.123 receives the request and sends a reply
message to your router.
5.
Your router performs Network Address Translation (NAT) on the source IP address, and
sends the reply through the Internet to the computer or WiFi device that sent the web page
request.
Port Triggering
Port triggering is a dynamic extension of port forwarding that is useful in these cases:
•
An application must use port forwarding to more than one local computer (but not
simultaneously).
•
An application must open incoming ports that are different from the outgoing port.
With port triggering, the router monitors traffic to the Internet from an outbound “trigger” port
that you specify. For outbound traffic from that port, the router saves the IP address of the
computer that sent the traffic. The router temporarily opens the incoming port or ports that
you specify in your rule and forwards that incoming traffic to that destination.
that you specify. For outbound traffic from that port, the router saves the IP address of the
computer that sent the traffic. The router temporarily opens the incoming port or ports that
you specify in your rule and forwards that incoming traffic to that destination.
Port forwarding creates a static mapping of a port number or range of ports to a single local
computer. Port triggering can dynamically open ports to any computer when needed and
close the ports when they are no longer needed.
computer. Port triggering can dynamically open ports to any computer when needed and
close the ports when they are no longer needed.
Add a Port Triggering Service
To add a port triggering service:
1.
Launch a web browser from a WiFi-enabled computer or mobile device that is
connected to the network.
2.
Enter orbilogin.com.
A login window opens.