What is the difference between port mapping and port forwarding

The biggest difference between port mapping and port forwarding , The former can include end-to-end P2P through , The latter is completely forward . For example, Beijing jinwanwei's fast resolution intranet penetration software port mapping , It also includes P2P Penetration and forwarding dual mode , As long as you can access the Internet, you can quickly map the local port to the external network access . The following are the implementation steps of Intranet mapping public network .

1. Define intranet access . Whether it's remote server management , Or access the project application on the server , First, make sure that you can normally access your target application in the LAN , Specify the intranet used IP And Intranet port number .

2. Add intranet mapping . Local to the intranet server or on another host in the LAN , Install and log in to quick resolve add port mapping . Here, you can directly set the application's intranet address to the Internet address in one step . 

3. The information related to mapping and filling in are ：
Application port （ Common server ports ）：WEB The server （ Web server ）：80 port ;FTP The server （ File server ）：21 port ; Terminal Server ：3389 port ; Mail server ：25 port （SMTP） and 110 port （POP）;VPN The server ：1723 port ;

Public port type ： Choose according to your own application needs .

Intranet address ： Intranet access to fixed address . It can be a fixed intranet IP Or computer name . If the mapping is used locally on the server , It is recommended to fill in 127.0.0.1 Format .

 

 4. Achieve Internet domain name access . After the domain name resolution takes effect, the intranet mapping takes effect quickly , That is, you can surf the Internet in any environment , Access through domain name and Internet port .

As long as there is local networking , Access to the Internet , That is, you can quickly resolve the port mapping settings , Connect the local server to the intranet IP The port is mapped to its own domain name or automatically generated free custom secondary domain name , Provide Internet access through domain name .

As a remote connection artifact , Resolve quickly. There is no public network IP Or dynamic public network IP Under various circumstances, there are various external network access problems . Such as LAN OA/ERP/CRM、NAS Private cloud 、 Video surveillance 、 Remote development test 、FTP/SVN/MAC/ Game server 、Windows Remote desktop 、 Website 、 Blog 、 Industry 4.0 And other applications or devices . Simple 、 Efficient 、 Stable , And support PC、 mobile phone APP Remote management , Save the mind and save labour ！