4.3.2 Port Trigger. Asus RT-AC52U B1

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4.3.2  Port Trigger. Asus RT-AC52U B1 | Manualzz

4.3.2 Port Trigger

Port range triggering opens a predetermined incoming port for a limited period of time whenever a client on the local area network makes an outgoing connection to a specified port. Port triggering is used in the following scenarios:

• More than one local client needs port forwarding for the same application at a different time.

• An application requires specific incoming ports that are different from the outgoing ports.

To set up Port Trigger:

1. From the navigation panel, go to Advanced Settings > WAN

> Port Trigger tab.

2. Configure the following settings below. When done, click

Apply .

• Enable Port Trigger : Choose Yes to enable Port Trigger.

• Well-Known Applications : Select popular games and web services to add to the Port Trigger List.

• Description : Enter a short name or description for the service.



• Trigger Port : Specify a trigger port to open the incoming port.

• Protocol : Select the protocol, TCP, or UDP.

• Incoming Port : Specify an incoming port to receive inbound data from the Internet.

• Protocol : Select the protocol, TCP, or UDP.


• When connecting to an IRC server, a client PC makes an outgoing connection using the trigger port range 66660-7000. The IRC server responds by verifying the username and creating a new connection to the client PC using an incoming port.

• If Port Trigger is disabled, the router drops the connection because it is unable to determine which PC is requesting for IRC access.

When Port Trigger is enabled, the router assigns an incoming port to receive the inbound data. This incoming port closes once a specific time period has elapsed because the router is unsure when the application has been terminated.

• Port triggering only allows one client in the network to use a particular service and a specific incoming port at the same time.

• You cannot use the same application to trigger a port in more than one PC at the same time. The router will only forward the port back to the last computer to send the router a request/trigger.


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Key Features

  • 802.11ac dual-band wireless at up to 733 Mbps for high-performance wireless
  • Expanded wireless coverage with two fixed high-gain antennas
  • USB port for printer networking, storage sharing, or 3G/4G connections
  • ASUS AiCloud app to access, sync, share and stream your files on the go –quickly and easily
  • Easy 30 second setup and robust controls like network monitoring through ASUSWRT dashboard

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