More accurately, it is to open the 7002 port of the next host of the router. Taking tplink wr886n as an example, the setting method is as follows:

1. Open a browser and enter the ip address of the router. The default ip is192.168.0.1,and press enter to log in.

2. Log in to the dialog box, enter the password, and click OK;

3. Click Forwarding Rules-Virtual Server, and then click Add New Item;

4. Enter the ip address of the intranet host that is allowed to access, the open port number of the host, select the transmission protocol, and click Save.