Hello,

You can set port forwarding on the WAN Configuration page.

1. In the navigation tree on the left, choose Forward Rules > Port Mapping Configuration. In the pane on the right, click New. In the dialog box that is displayed, set the parameters related to port mapping, as shown inFigure 1.

2. Click Apply.

Port mapping indicates that the Intranet server is allowed to be open to the Extranet (for example, the Intranet provides the Extranet with a WWW server or FTP server). Port mapping is to map the Intranet host IP address and port ID to the Extranet IP address and the corresponding port ID so that users from Extranets can access the Intranet server.

With port mapping, the users cannot see the Intranet IP address. They see the Extranet IP address.

Please refer to the below link:

http://support.huawei.com/hedex/hdx.do?docid=EDOC1100062908&id=service_0127&text=Port Mapping Configuration&lang=en

Check whether your device is provided by an ISP and whether they have restrictions on you.

You can also refer to this links : 

How to configure port mapping on Huawei ONT

How to configure Huawei ONT port mapping

Hope this helps

Thanks

Hello, friend!

ONT port mapping cannot forward well-known port services and can forward only idle ports. Ports 443 and 80 are well-known ports. Therefore, a service conflict error is displayed. Change them to idle ports.

The well-known port numbers are the port numbers that are reserved for assignment by the Internet Corporation for Assigned Names and Numbers (ICANN) for use by the application endpoints that communicate using the Internet's Transmission Control Protocol (TCP) or the User Datagram Protocol (UDP). Each kind of application has a designated (and thus "well-known") port number. For example, a remote job entry application has the port number of 5; the Hypertext Transfer Protocol (HTTP) application has the port number of 80; and the Post Office Protocol Version 3 (POP3) application, commonly used for e-mail delivery, has the port number of 110. When one application communicates with another application at another host computer on the Internet, it specifies that application in each data transmission by using its port number.

The well-known ports cover the range of possible port numbers from 0 through 1023. The registered ports are numbered from 1024 through 49151. The remaining ports, referred to as dynamic ports or private ports, are numbered from 49152 through 65535.

Port 443: web browsing port. It is used for HTTPS services. It is another type of HTTP that provides encryption and transmission through a secure port.

Port 80: Opened for the Hypertext Transfer Protocol (HTTP), which is the most frequently used protocol for surfing the Internet, is mainly used for the World Wide Web (WWW), which is a protocol for transmitting the information.

Thanks!