Use port ing to open the Intranet through the gateway

Today, we will talk about how to use port ing without using the gateway to open the Intranet.

　　I. Prerequisites

A public IP address is required. Assume that we have a public IP Address: 210.210.21.21.

　　Ii. Tools used

1.lcx.exe

2. vdic

　　Iii. Methods

Method 1: Use lcx.exe for ing.

(1)we will upload lcx.exe to the public IP address, and execute lcx-listen Port 1 Port 2 in the DOS environment on the public IP Address

See lcx-listen 3030 for details.

This command listens to port 3030 and port 3166 for external connection.

(2) download lcx.exe to the computer on the Intranet to be opened, and then execute lcx-slave public IP port Intranet IP port in the DOS environment

For example, lcx-slave 211.211.21.21 3030 172.16.32.153 80, see:

To explain this sentence, set the Intranet computer IP address to port 80 of 172.16.32.153 (that is, the WEB Service port)

Ing to port 3030 with the public IP address 210.210.21.21. In this way, a connection is established between the Intranet and the Internet computer. If you

Intranet computers provide WEB Services. Now, you only need to access the Intranet website through the Internet IP address 210.210.21.21 and port 3166.

Access address http: // 172.16.32.153/index.htm

After the IP address is enabled, see http: // 210.210.21.21: 3166/index.htm.

 

Method 2: Use VIDC

We will upload vidcs.exe to the public IP address and run the vidcs-p port on the public computer. For details, see vdics-p5205.

Listening to port 5205 on a public computer, then going back to the Intranet computer and clicking run

VIDCc.exe, see

Explanation of the above settings: vidcservice IP refers to the IP address of the port listened to by vidcs.exe. The port refers to the port listened to on the public network, where I listened to port 5205, bindip refers to the Intranet IP address you want to open, Bind port refers to the port that your intranet computer needs to open (port 21 of the FTP server, port 80 of the WEB service, and port 25 of the mail service) if you want to open it, enter it.

Ing port refers to the port through which you want to provide services. Set the port. After filling in the port, click "Connect". Then we will immediately receive the prompt Success to Connect (210.210.21.21: 5205, ver: 1.2), indicating that the connection is successful. Click "bind" and you will receive a success prompt.

In this way, the port 80 of your host is opened. Access Method http: // public ip: ing port.

For example, http: // 210.210.21.21: 8080, see

The above two methods do not enable the Intranet through the gateway.